On Mon, 6 Nov 2023, Tamar Christina wrote:
> Hi All,
>
> This adds new test to check for all the early break functionality.
> It includes a number of codegen and runtime tests checking the values at
> different needles in the array.
>
> They also check the values on different array sizes and peeling positions,
> datatypes, VL, ncopies and every other variant I could think of.
>
> Additionally it also contains reduced cases from issues found running over
> various codebases.
>
> Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.
>
> Also regtested with:
> -march=armv8.3-a+sve
> -march=armv8.3-a+nosve
> -march=armv9-a
>
> Ok for master?
>
> Thanks,
> Tamar
>
> gcc/ChangeLog:
>
> * doc/sourcebuild.texi: Document it.
Document what?
> gcc/testsuite/ChangeLog:
>
> * lib/target-supports.exp:
?
For all runtime testcases you need to include "tree-vect.h"
and call check_vect () in main so appropriate cpuid checks
can be performed.
In vect/ you shouldn't use { dg-do run }, that's the default
and is overridden by some .exp magic. If you add dg-do run
that magic doesn't work.
x86 also can do cbranch with SSE4.1, not sure how to
auto-magically add -msse4.1 for the tests though.
There's a sse4 target but that only checks whether you
can use -msse4.1. Anyway, we can do x86 testsuite adjustments
as followup.
> * g++.dg/vect/vect-early-break_1.cc: New test.
> * g++.dg/vect/vect-early-break_2.cc: New test.
> * g++.dg/vect/vect-early-break_3.cc: New test.
> * gcc.dg/vect/vect-early-break-run_1.c: New test.
> * gcc.dg/vect/vect-early-break-run_10.c: New test.
> * gcc.dg/vect/vect-early-break-run_2.c: New test.
> * gcc.dg/vect/vect-early-break-run_3.c: New test.
> * gcc.dg/vect/vect-early-break-run_4.c: New test.
> * gcc.dg/vect/vect-early-break-run_5.c: New test.
> * gcc.dg/vect/vect-early-break-run_6.c: New test.
> * gcc.dg/vect/vect-early-break-run_7.c: New test.
> * gcc.dg/vect/vect-early-break-run_8.c: New test.
> * gcc.dg/vect/vect-early-break-run_9.c: New test.
> * gcc.dg/vect/vect-early-break-template_1.c: New test.
> * gcc.dg/vect/vect-early-break-template_2.c: New test.
> * gcc.dg/vect/vect-early-break_1.c: New test.
> * gcc.dg/vect/vect-early-break_10.c: New test.
> * gcc.dg/vect/vect-early-break_11.c: New test.
> * gcc.dg/vect/vect-early-break_12.c: New test.
> * gcc.dg/vect/vect-early-break_13.c: New test.
> * gcc.dg/vect/vect-early-break_14.c: New test.
> * gcc.dg/vect/vect-early-break_15.c: New test.
> * gcc.dg/vect/vect-early-break_16.c: New test.
> * gcc.dg/vect/vect-early-break_17.c: New test.
> * gcc.dg/vect/vect-early-break_18.c: New test.
> * gcc.dg/vect/vect-early-break_19.c: New test.
> * gcc.dg/vect/vect-early-break_2.c: New test.
> * gcc.dg/vect/vect-early-break_20.c: New test.
> * gcc.dg/vect/vect-early-break_21.c: New test.
> * gcc.dg/vect/vect-early-break_22.c: New test.
> * gcc.dg/vect/vect-early-break_23.c: New test.
> * gcc.dg/vect/vect-early-break_24.c: New test.
> * gcc.dg/vect/vect-early-break_25.c: New test.
> * gcc.dg/vect/vect-early-break_26.c: New test.
> * gcc.dg/vect/vect-early-break_27.c: New test.
> * gcc.dg/vect/vect-early-break_28.c: New test.
> * gcc.dg/vect/vect-early-break_29.c: New test.
> * gcc.dg/vect/vect-early-break_3.c: New test.
> * gcc.dg/vect/vect-early-break_30.c: New test.
> * gcc.dg/vect/vect-early-break_31.c: New test.
> * gcc.dg/vect/vect-early-break_32.c: New test.
> * gcc.dg/vect/vect-early-break_33.c: New test.
> * gcc.dg/vect/vect-early-break_34.c: New test.
> * gcc.dg/vect/vect-early-break_35.c: New test.
> * gcc.dg/vect/vect-early-break_36.c: New test.
> * gcc.dg/vect/vect-early-break_37.c: New test.
> * gcc.dg/vect/vect-early-break_38.c: New test.
> * gcc.dg/vect/vect-early-break_39.c: New test.
> * gcc.dg/vect/vect-early-break_4.c: New test.
> * gcc.dg/vect/vect-early-break_40.c: New test.
> * gcc.dg/vect/vect-early-break_41.c: New test.
> * gcc.dg/vect/vect-early-break_42.c: New test.
> * gcc.dg/vect/vect-early-break_43.c: New test.
> * gcc.dg/vect/vect-early-break_44.c: New test.
> * gcc.dg/vect/vect-early-break_45.c: New test.
> * gcc.dg/vect/vect-early-break_46.c: New test.
> * gcc.dg/vect/vect-early-break_47.c: New test.
> * gcc.dg/vect/vect-early-break_48.c: New test.
> * gcc.dg/vect/vect-early-break_49.c: New test.
> * gcc.dg/vect/vect-early-break_5.c: New test.
> * gcc.dg/vect/vect-early-break_50.c: New test.
> * gcc.dg/vect/vect-early-break_51.c: New test.
> * gcc.dg/vect/vect-early-break_52.c: New test.
> * gcc.dg/vect/vect-early-break_53.c: New test.
> * gcc.dg/vect/vect-early-break_54.c: New test.
> * gcc.dg/vect/vect-early-break_55.c: New test.
> * gcc.dg/vect/vect-early-break_56.c: New test.
> * gcc.dg/vect/vect-early-break_57.c: New test.
> * gcc.dg/vect/vect-early-break_58.c: New test.
> * gcc.dg/vect/vect-early-break_59.c: New test.
> * gcc.dg/vect/vect-early-break_6.c: New test.
> * gcc.dg/vect/vect-early-break_60.c: New test.
> * gcc.dg/vect/vect-early-break_61.c: New test.
> * gcc.dg/vect/vect-early-break_62.c: New test.
> * gcc.dg/vect/vect-early-break_63.c: New test.
> * gcc.dg/vect/vect-early-break_64.c: New test.
> * gcc.dg/vect/vect-early-break_65.c: New test.
> * gcc.dg/vect/vect-early-break_66.c: New test.
> * gcc.dg/vect/vect-early-break_67.c: New test.
> * gcc.dg/vect/vect-early-break_68.c: New test.
> * gcc.dg/vect/vect-early-break_69.c: New test.
> * gcc.dg/vect/vect-early-break_7.c: New test.
> * gcc.dg/vect/vect-early-break_70.c: New test.
> * gcc.dg/vect/vect-early-break_71.c: New test.
> * gcc.dg/vect/vect-early-break_72.c: New test.
> * gcc.dg/vect/vect-early-break_73.c: New test.
> * gcc.dg/vect/vect-early-break_74.c: New test.
> * gcc.dg/vect/vect-early-break_75.c: New test.
> * gcc.dg/vect/vect-early-break_76.c: New test.
> * gcc.dg/vect/vect-early-break_8.c: New test.
> * gcc.dg/vect/vect-early-break_9.c: New test.
> * gcc.target/aarch64/opt_mismatch_1.c: New test.
> * gcc.target/aarch64/opt_mismatch_2.c: New test.
> * gcc.target/aarch64/opt_mismatch_3.c: New test.
> * gcc.target/aarch64/vect-early-break-cbranch_1.c: New test.
>
> --- inline copy of patch --
> diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
> index
> c20af31c64237baff70f8781b1dc47f4d1a48aa9..4c351335f2bec9c6bb6856bd38d9132da7447c13
> 100644
> --- a/gcc/doc/sourcebuild.texi
> +++ b/gcc/doc/sourcebuild.texi
> @@ -1636,6 +1636,10 @@ Target supports hardware vectors of @code{float} when
> @option{-funsafe-math-optimizations} is not in effect.
> This implies @code{vect_float}.
>
> +@item vect_early_break
> +Target supports hardware vectorization of loops with early breaks.
> +This requires an implementation of the cbranch optab for vectors.
> +
> @item vect_int
> Target supports hardware vectors of @code{int}.
>
> diff --git a/gcc/testsuite/g++.dg/vect/vect-early-break_1.cc
> b/gcc/testsuite/g++.dg/vect/vect-early-break_1.cc
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..810d990e3efab0cf0363a3b76481f2cb649ad3ba
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/vect/vect-early-break_1.cc
> @@ -0,0 +1,60 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-w -O2" } */
> +
> +void fancy_abort(char *, int, const char *) __attribute__((__noreturn__));
> +template <unsigned N, typename> struct poly_int_pod { int coeffs[N]; };
> +template <unsigned N, typename> class poly_int : public poly_int_pod<N, int>
> {
> +public:
> + template <typename Ca> poly_int &operator+=(const poly_int_pod<N, Ca> &);
> +};
> +template <unsigned N, typename C>
> +template <typename Ca>
> +poly_int<N, C> &poly_int<N, C>::operator+=(const poly_int_pod<N, Ca> &a) {
> + for (int i = 0; i < N; i++)
> + this->coeffs[i] += a.coeffs[i];
> + return *this;
> +}
> +template <unsigned N, typename Ca, typename Cb>
> +poly_int<N, long> exact_div(poly_int_pod<N, Ca>, Cb) {
> + poly_int<N, long> r;
> + return r;
> +}
> +struct vec_prefix {
> + unsigned m_num;
> +};
> +struct vl_ptr;
> +struct va_heap {
> + typedef vl_ptr default_layout;
> +};
> +template <typename, typename A, typename = typename A::default_layout>
> +struct vec;
> +template <typename T, typename A> struct vec<T, A, int> {
> + T &operator[](unsigned);
> + vec_prefix m_vecpfx;
> + T m_vecdata[];
> +};
> +template <typename T, typename A> T &vec<T, A, int>::operator[](unsigned ix)
> {
> + m_vecpfx.m_num ? fancy_abort("", 9, __FUNCTION__), 0 : 0;
> + return m_vecdata[ix];
> +}
> +template <typename T> struct vec<T, va_heap> {
> + T &operator[](unsigned ix) { return m_vec[ix]; }
> + vec<T, va_heap, int> m_vec;
> +};
> +class auto_vec : public vec<poly_int<2, long>, va_heap> {};
> +template <typename> class vector_builder : public auto_vec {};
> +class int_vector_builder : public vector_builder<int> {
> +public:
> + int_vector_builder(poly_int<2, long>, int, int);
> +};
> +bool vect_grouped_store_supported() {
> + int i;
> + poly_int<2, long> nelt;
> + int_vector_builder sel(nelt, 2, 3);
> + for (i = 0; i < 6; i++)
> + sel[i] += exact_div(nelt, 2);
> +}
> +
> diff --git a/gcc/testsuite/g++.dg/vect/vect-early-break_2.cc
> b/gcc/testsuite/g++.dg/vect/vect-early-break_2.cc
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..810d990e3efab0cf0363a3b76481f2cb649ad3ba
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/vect/vect-early-break_2.cc
> @@ -0,0 +1,60 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-w -O2" } */
> +
> +void fancy_abort(char *, int, const char *) __attribute__((__noreturn__));
> +template <unsigned N, typename> struct poly_int_pod { int coeffs[N]; };
> +template <unsigned N, typename> class poly_int : public poly_int_pod<N, int>
> {
> +public:
> + template <typename Ca> poly_int &operator+=(const poly_int_pod<N, Ca> &);
> +};
> +template <unsigned N, typename C>
> +template <typename Ca>
> +poly_int<N, C> &poly_int<N, C>::operator+=(const poly_int_pod<N, Ca> &a) {
> + for (int i = 0; i < N; i++)
> + this->coeffs[i] += a.coeffs[i];
> + return *this;
> +}
> +template <unsigned N, typename Ca, typename Cb>
> +poly_int<N, long> exact_div(poly_int_pod<N, Ca>, Cb) {
> + poly_int<N, long> r;
> + return r;
> +}
> +struct vec_prefix {
> + unsigned m_num;
> +};
> +struct vl_ptr;
> +struct va_heap {
> + typedef vl_ptr default_layout;
> +};
> +template <typename, typename A, typename = typename A::default_layout>
> +struct vec;
> +template <typename T, typename A> struct vec<T, A, int> {
> + T &operator[](unsigned);
> + vec_prefix m_vecpfx;
> + T m_vecdata[];
> +};
> +template <typename T, typename A> T &vec<T, A, int>::operator[](unsigned ix)
> {
> + m_vecpfx.m_num ? fancy_abort("", 9, __FUNCTION__), 0 : 0;
> + return m_vecdata[ix];
> +}
> +template <typename T> struct vec<T, va_heap> {
> + T &operator[](unsigned ix) { return m_vec[ix]; }
> + vec<T, va_heap, int> m_vec;
> +};
> +class auto_vec : public vec<poly_int<2, long>, va_heap> {};
> +template <typename> class vector_builder : public auto_vec {};
> +class int_vector_builder : public vector_builder<int> {
> +public:
> + int_vector_builder(poly_int<2, long>, int, int);
> +};
> +bool vect_grouped_store_supported() {
> + int i;
> + poly_int<2, long> nelt;
> + int_vector_builder sel(nelt, 2, 3);
> + for (i = 0; i < 6; i++)
> + sel[i] += exact_div(nelt, 2);
> +}
> +
> diff --git a/gcc/testsuite/g++.dg/vect/vect-early-break_3.cc
> b/gcc/testsuite/g++.dg/vect/vect-early-break_3.cc
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a12e5ca434b2ac37c03dbaa12273fd8e5aa2018c
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/vect/vect-early-break_3.cc
> @@ -0,0 +1,16 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-w -O2" } */
> +
> +int aarch64_advsimd_valid_immediate_hs_val32;
> +bool aarch64_advsimd_valid_immediate_hs() {
> + for (int shift = 0; shift < 32; shift += 8)
> + if (aarch64_advsimd_valid_immediate_hs_val32 & shift)
> + return aarch64_advsimd_valid_immediate_hs_val32;
> + for (;;)
> + ;
> +}
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_1.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_1.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..2495b36a72eae94cb7abc4a0d17a5c979fd78083
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_1.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 0
> +#include "vect-early-break-template_1.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_10.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_10.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9bcd7f7e57ef9a1d4649d18569b3406050e54603
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_10.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 800
> +#define P 799
> +#include "vect-early-break-template_2.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_2.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_2.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..63f63101a467909f328be7f3acbc5bcb721967ff
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_2.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 802
> +#include "vect-early-break-template_1.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_3.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_3.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..626b95e9b8517081d41d794e9e0264d6301c8589
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_3.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 5
> +#include "vect-early-break-template_1.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_4.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_4.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..7e0e6426120551152a7bd800c15d9ed6ab15bada
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_4.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 278
> +#include "vect-early-break-template_1.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_5.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_5.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..242cf486f9c40055df0aef5fd238d1aff7a7c7da
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_5.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 800
> +#define P 799
> +#include "vect-early-break-template_1.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_6.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_6.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9fe7136b7213a463ca6573c60476b7c8f531ddcb
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_6.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 0
> +#include "vect-early-break-template_2.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_7.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_7.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..02f93d77dba31b938f6fd9e8c7f5e4acde4aeec9
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_7.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 802
> +#include "vect-early-break-template_2.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_8.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_8.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a614925465606b54c638221ffb95a5e8d3bee797
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_8.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 5
> +#include "vect-early-break-template_2.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-run_9.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_9.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..94e2b9c301456eda8f9ad7eaa67604563f0afee7
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-run_9.c
> @@ -0,0 +1,11 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast -save-temps" } */
> +
> +#define N 803
> +#define P 278
> +#include "vect-early-break-template_2.c"
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-template_1.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-template_1.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..af70a8e2a5a9dc9756edb5580f2de02ddcc95de9
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-template_1.c
> @@ -0,0 +1,47 @@
> +#ifndef N
> +#define N 803
> +#endif
> +
> +#ifndef P
> +#define P 0
> +#endif
> +
> +unsigned vect_a[N] = {0};
> +unsigned vect_b[N] = {0};
> +
> +__attribute__((noipa, noinline))
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +extern void abort ();
> +
> +int main ()
> +{
> +
> + int x = 1;
> + int idx = P;
> + vect_a[idx] = x + 1;
> +
> + test4(x);
> +
> + if (vect_b[idx] != (x + idx))
> + abort ();
> +
> + if (vect_a[idx] != x + 1)
> + abort ();
> +
> + if (idx > 0 && vect_a[idx-1] != x)
> + abort ();
> +
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break-template_2.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break-template_2.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d0f924d904437e71567d27cc1f1089e5607dca0d
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break-template_2.c
> @@ -0,0 +1,50 @@
> +#ifndef N
> +#define N 803
> +#endif
> +
> +#ifndef P
> +#define P 0
> +#endif
> +
> +unsigned vect_a[N] = {0};
> +unsigned vect_b[N] = {0};
> +
> +__attribute__((noipa, noinline))
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return i;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +extern void abort ();
> +
> +int main ()
> +{
> +
> + int x = 1;
> + int idx = P;
> + vect_a[idx] = x + 1;
> +
> + unsigned res = test4(x);
> +
> + if (res != idx)
> + abort ();
> +
> + if (vect_b[idx] != (x + idx))
> + abort ();
> +
> + if (vect_a[idx] != x + 1)
> + abort ();
> +
> + if (idx > 0 && vect_a[idx-1] != x)
> + abort ();
> +
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_1.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_1.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..51e7d6489b99c25b9b4b3d1c839f98562b6d4dd7
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_1.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_10.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_10.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9e4ad1763202dfdab3ed7961ead5114fcc61a11b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_10.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x,int y, int z)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> + }
> +
> + ret = x + y * z;
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_11.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_11.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a613dd9909fb09278dd92a81a24ef854994a9890
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_11.c
> @@ -0,0 +1,31 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x, int y)
> +{
> + unsigned ret = 0;
> +for (int o = 0; o < y; o++)
> +{
> + ret += o;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> +}
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_12.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_12.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..cc10f3238f1cb8e1307e024a3ebcb5c25a39d1b2
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_12.c
> @@ -0,0 +1,31 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x, int y)
> +{
> + unsigned ret = 0;
> +for (int o = 0; o < y; o++)
> +{
> + ret += o;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> +
> + }
> +}
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_13.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_13.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6967b7395ed7c19e38a436d6edcfe7c1580c7113
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_13.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i] * x;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_14.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_14.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..03cce5cf6cadecb520b46be666bf608e3bc6a511
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_14.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 803
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +int test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return i;
> + vect_a[i] += x * vect_b[i];
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_15.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_15.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..dec6872e1115ff66695f5a500ffa7ca01c0f8d3a
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_15.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 803
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +int test4(unsigned x)
> +{
> + int ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return i;
> + vect_a[i] += x * vect_b[i];
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_16.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_16.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..30812d12a39bd94b4b8a3aade6512b162697d659
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_16.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 1024
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> + ret += vect_a[i] + vect_b[i];
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_17.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_17.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..510227a18435a8e47c5a754580180c6d340c0823
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_17.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 1024
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> + ret = vect_a[i] + vect_b[i];
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_18.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_18.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..1372f79242b250cabbab29757b62cbc28a9064a8
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_18.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+=2)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_19.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_19.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..677487f7da496a8f467d8c529575d47ff22c6a31
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_19.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x, unsigned step)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+=step)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_2.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_2.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..7268f6ae2485d0274fd85ea53cc1e44ef4b84d5c
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_2.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <complex.h>
> +
> +#define N 1024
> +complex double vect_a[N];
> +complex double vect_b[N];
> +
> +complex double test4(complex double x)
> +{
> + complex double ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] += x + i;
> + if (vect_a[i] == x)
> + return i;
> + vect_a[i] += x * vect_b[i];
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_20.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_20.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..ed41377d1c979bf14e0a4e80401831c09ffa463f
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_20.c
> @@ -0,0 +1,37 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <stdbool.h>
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_b[N];
> +struct testStruct {
> + long e;
> + long f;
> + bool a : 1;
> + bool b : 1;
> + int c : 14;
> + int d;
> +};
> +struct testStruct vect_a[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i].a > x)
> + return true;
> + vect_a[i].e = x;
> + }
> + return ret;
> +}
> +
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_21.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_21.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6415e4951cb9ef70e56b7cfb1db3d3151368666d
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_21.c
> @@ -0,0 +1,37 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <stdbool.h>
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_b[N];
> +struct testStruct {
> + long e;
> + long f;
> + bool a : 1;
> + bool b : 1;
> + int c : 14;
> + int d;
> +};
> +struct testStruct vect_a[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i].a)
> + return true;
> + vect_a[i].e = x;
> + }
> + return ret;
> +}
> +
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_22.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_22.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..2ca189899fb6bd6dfdf63de7729f54e3bee06ba0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_22.c
> @@ -0,0 +1,45 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_int } */
> +/* { dg-require-effective-target vect_perm } */
> +/* { dg-require-effective-target vect_early_break } */
> +
> +#include "tree-vect.h"
> +
> +void __attribute__((noipa))
> +foo (int * __restrict__ a, short * __restrict__ b, int * __restrict__ c)
> +{
> + int t1 = *c;
> + int t2 = *c;
> + for (int i = 0; i < 64; i+=2)
> + {
> + b[i] = a[i] - t1;
> + t1 = a[i];
> + b[i+1] = a[i+1] - t2;
> + t2 = a[i+1];
> + }
> +}
> +
> +int a[64];
> +short b[64];
> +
> +int
> +main ()
> +{
> + check_vect ();
> + for (int i = 0; i < 64; ++i)
> + {
> + a[i] = i;
> + __asm__ volatile ("" ::: "memory");
> + }
> + int c = 7;
> + foo (a, b, &c);
> + for (int i = 2; i < 64; i+=2)
> + if (b[i] != a[i] - a[i-2]
> + || b[i+1] != a[i+1] - a[i-1])
> + abort ();
> + if (b[0] != -7 || b[1] != -6)
> + abort ();
> + return 0;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops in function" 2
> "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_23.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_23.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..f3298656d5d67fd137c4029a96a2f9c1bae344ce
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_23.c
> @@ -0,0 +1,61 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#define N 200
> +#define M 4
> +
> +typedef signed char sc;
> +typedef unsigned char uc;
> +typedef signed short ss;
> +typedef unsigned short us;
> +typedef int si;
> +typedef unsigned int ui;
> +typedef signed long long sll;
> +typedef unsigned long long ull;
> +
> +#define FOR_EACH_TYPE(M) \
> + M (sc) M (uc) \
> + M (ss) M (us) \
> + M (si) M (ui) \
> + M (sll) M (ull) \
> + M (float) M (double)
> +
> +#define TEST_VALUE(I) ((I) * 17 / 2)
> +
> +#define ADD_TEST(TYPE) \
> + void __attribute__((noinline, noclone)) \
> + test_##TYPE (TYPE *a, TYPE *b) \
> + { \
> + for (int i = 0; i < N; i += 2) \
> + { \
> + a[i + 0] = b[i + 0] + 2; \
> + a[i + 1] = b[i + 1] + 3; \
> + } \
> + }
> +
> +#define DO_TEST(TYPE) \
> + for (int j = 1; j < M; ++j) \
> + { \
> + TYPE a[N + M]; \
> + for (int i = 0; i < N + M; ++i) \
> + a[i] = TEST_VALUE (i); \
> + test_##TYPE (a + j, a); \
> + for (int i = 0; i < N; i += 2) \
> + if (a[i + j] != (TYPE) (a[i] + 2) \
> + || a[i + j + 1] != (TYPE) (a[i + 1] + 3)) \
> + __builtin_abort (); \
> + }
> +
> +FOR_EACH_TYPE (ADD_TEST)
> +
> +int
> +main (void)
> +{
> + FOR_EACH_TYPE (DO_TEST)
> + return 0;
> +}
> +
> +/* { dg-final { scan-tree-dump {flags: [^\n]*ARBITRARY\n} "vect" { target
> vect_int } } } */
> +/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect"
> } } */
> +/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_24.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_24.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..7b4b2ffb9b75db6d5ca7e313d1f18d9b51f5b566
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_24.c
> @@ -0,0 +1,46 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_double } */
> +/* { dg-require-effective-target vect_early_break } */
> +
> +#include "tree-vect.h"
> +
> +extern void abort (void);
> +void __attribute__((noinline,noclone))
> +foo (double *b, double *d, double *f)
> +{
> + int i;
> + for (i = 0; i < 1024; i++)
> + {
> + d[2*i] = 2. * d[2*i];
> + d[2*i+1] = 4. * d[2*i+1];
> + b[i] = d[2*i] - 1.;
> + f[i] = d[2*i+1] + 2.;
> + }
> +}
> +int main()
> +{
> + double b[1024], d[2*1024], f[1024];
> + int i;
> +
> + check_vect ();
> +
> + for (i = 0; i < 2*1024; i++)
> + d[i] = 1.;
> + foo (b, d, f);
> + for (i = 0; i < 1024; i+= 2)
> + {
> + if (d[2*i] != 2.)
> + abort ();
> + if (d[2*i+1] != 4.)
> + abort ();
> + }
> + for (i = 0; i < 1024; i++)
> + {
> + if (b[i] != 1.)
> + abort ();
> + if (f[i] != 6.)
> + abort ();
> + }
> + return 0;
> +}
> +
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_25.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_25.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..8db9b60128b9e21529ae73ea1902afb8fa327112
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_25.c
> @@ -0,0 +1,11 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* Disabling epilogues until we find a better way to deal with scans. */
> +/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#include "vect-peel-1-src.c"
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
> +/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 14
> "vect" { target { { vect_element_align } && { vect_aligned_arrays } } xfail {
> ! vect_unaligned_possible } } } } */
> +/* { dg-final { scan-tree-dump-times "Alignment of access forced using
> peeling" 1 "vect" { xfail vect_element_align_preferred } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_26.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_26.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..5905847cc0b6b393dde728a9f4ecb44c8ab42da5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_26.c
> @@ -0,0 +1,44 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +/* { dg-require-effective-target vect_perm } */
> +
> +#include "tree-vect.h"
> +
> +void __attribute__((noipa))
> +foo (int * __restrict__ a, int * __restrict__ b, int * __restrict__ c)
> +{
> + int t1 = *c;
> + int t2 = *c;
> + for (int i = 0; i < 64; i+=2)
> + {
> + b[i] = a[i] - t1;
> + t1 = a[i];
> + b[i+1] = a[i+1] - t2;
> + t2 = a[i+1];
> + }
> +}
> +
> +int a[64], b[64];
> +
> +int
> +main ()
> +{
> + check_vect ();
> + for (int i = 0; i < 64; ++i)
> + {
> + a[i] = i;
> + __asm__ volatile ("" ::: "memory");
> + }
> + int c = 7;
> + foo (a, b, &c);
> + for (int i = 2; i < 64; i+=2)
> + if (b[i] != a[i] - a[i-2]
> + || b[i+1] != a[i+1] - a[i-1])
> + abort ();
> + if (b[0] != -7 || b[1] != -6)
> + abort ();
> + return 0;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops in function" 2
> "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_27.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_27.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d0cfbb01667fa016d72828d098aeaa252c2c9318
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_27.c
> @@ -0,0 +1,18 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +void abort ();
> +int a[128];
> +
> +int main ()
> +{
> + int i;
> + for (i = 1; i < 128; i++)
> + if (a[i] != i%4 + 1)
> + abort ();
> + if (a[0] != 5)
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_28.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_28.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a5eae81f3f5f5b7d92082f1588c6453a71e205cc
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_28.c
> @@ -0,0 +1,15 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +void abort ();
> +int a[128];
> +int main ()
> +{
> + int i;
> + for (i = 1; i < 128; i++)
> + if (a[i] != i%4 + 1)
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_29.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_29.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..75d87e99e939fab61f751be025ca0398fa5bd078
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_29.c
> @@ -0,0 +1,16 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int in[100];
> +int out[100 * 2];
> +
> +int main (void)
> +{
> + if (out[0] != in[100 - 1])
> + for (int i = 1; i <= 100; ++i)
> + if (out[i] != 2)
> + __builtin_abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_3.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_3.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..3c6d28bd2d6e6e794146baf89e43c3b70293b7d9
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_3.c
> @@ -0,0 +1,20 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
> +
> +unsigned test4(char x, char *vect, int n)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < n; i++)
> + {
> + if (vect[i] > x)
> + return 1;
> +
> + vect[i] = x;
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_30.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_30.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..e09d883db84685679e73867d83aba9900563983d
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_30.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int x[100];
> +int choose1(int);
> +int choose2();
> +void consume(int);
> +void f() {
> + for (int i = 0; i < 100; ++i) {
> + if (x[i] == 11) {
> + if (choose1(i))
> + goto A;
> + else
> + goto B;
> + }
> + }
> + if (choose2())
> + goto B;
> +A:
> + for (int i = 0; i < 100; ++i)
> + consume(i);
> +B:
> + for (int i = 0; i < 100; ++i)
> + consume(i * i);
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_31.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_31.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6001523162d24d140af73143435f25bcd3a217c8
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_31.c
> @@ -0,0 +1,29 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 1025
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> + ret += vect_a[i] + vect_b[i];
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_32.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_32.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..73abddc267a0170c2d97a7e7c680525721455f22
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_32.c
> @@ -0,0 +1,29 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 1024
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> + ret = vect_a[i] + vect_b[i];
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_33.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_33.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..29b37f70939af7fa9409edd3a1e29f718c959706
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_33.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a2[N];
> +unsigned vect_a1[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x, int z)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a1[i]*2 > x)
> + {
> + for (int y = 0; y < z; y++)
> + vect_a2 [y] *= vect_a1[i];
> + break;
> + }
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 2 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_34.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_34.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..2c48e3cee33fc37f45ef59c2bbaff7bc5a76b460
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_34.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +
> +unsigned vect_a[N] __attribute__ ((aligned (4)));;
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> +
> + for (int i = 1; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_35.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_35.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..3442484a81161f9bd09e30bc268fbcf66a899902
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_35.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a2[N];
> +unsigned vect_a1[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a1[i]*2 > x)
> + break;
> + vect_a1[i] = x;
> + if (vect_a2[i]*4 > x)
> + break;
> + vect_a2[i] = x*x;
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_36.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_36.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..027766c51f508eab157db365a1653f3e92dcac10
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_36.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a2[N];
> +unsigned vect_a1[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a1[i]*2 > x)
> + break;
> + vect_a1[i] = x;
> + if (vect_a2[i]*4 > x)
> + return i;
> + vect_a2[i] = x*x;
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_37.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_37.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..8d363120898232bb1402b9cf7b4b83b38a10505b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_37.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 4
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 != x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_38.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_38.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..226d55d7194ca3f676ab52976fea25b7e335bbec
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_38.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+=2)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_39.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_39.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..554e6ec84318c600c87982ad6ef0f90e8b47af01
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_39.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x, unsigned n)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+= (N % 4))
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_4.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_4.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..216c56faf330449bf1969b7e51ff1e94270dc861
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_4.c
> @@ -0,0 +1,23 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 1024
> +unsigned vect[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + if (i > 16 && vect[i] > x)
> + break;
> +
> + vect[i] = x;
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_40.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_40.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..f2ae372cd96e74cc06254937c2b8fa69ecdedf09
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_40.c
> @@ -0,0 +1,26 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i*=3)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* SCEV can't currently analyze this loop bounds. */
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_41.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_41.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..6ad9b3f17ddb953bfbf614e9331fa81f565b262f
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_41.c
> @@ -0,0 +1,24 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> +#pragma GCC novector
> +#pragma GCC unroll 4
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] += vect_a[i] + x;
> + }
> + return ret;
> +}
> +
> +/* novector should have blocked vectorization. */
> +/* { dg-final { scan-tree-dump-not "vectorized \d loops in function" "vect"
> } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_42.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_42.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..88652f01595cb49a8736a1da6563507b607aae8f
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_42.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 800
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_43.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_43.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..8e3aab6e04222db8860c111af0e7977fce128dd4
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_43.c
> @@ -0,0 +1,29 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 802
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+=2)
> + {
> + vect_b[i] = x + i;
> + vect_b[i+1] = x + i + 1;
> + if (vect_a[i]*2 > x)
> + break;
> + if (vect_a[i+1]*2 > x)
> + break;
> + vect_a[i] = x;
> + vect_a[i+1] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_44.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_44.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..8e3aab6e04222db8860c111af0e7977fce128dd4
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_44.c
> @@ -0,0 +1,29 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 802
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i+=2)
> + {
> + vect_b[i] = x + i;
> + vect_b[i+1] = x + i + 1;
> + if (vect_a[i]*2 > x)
> + break;
> + if (vect_a[i+1]*2 > x)
> + break;
> + vect_a[i] = x;
> + vect_a[i+1] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_45.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_45.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..cf1cb903b31d5fb5527bc6216c0cb9047357da96
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_45.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i]*2 > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_46.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_46.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..356d971e3a1f69f5c190b49d1d108e6be8766b39
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_46.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +#include <complex.h>
> +
> +#define N 1024
> +complex double vect_a[N];
> +complex double vect_b[N];
> +
> +complex double test4(complex double x)
> +{
> + complex double ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] += x + i;
> + if (vect_a[i] == x)
> + return i;
> + vect_a[i] += x * vect_b[i];
> +
> + }
> + return ret;
> +}
> +
> +/* At -O2 we can't currently vectorize this because of the libcalls not being
> + lowered. */
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_47.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_47.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..d1cca4a33a25fbf6b631d46ce3dcd3608cffa046
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_47.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +void abort ();
> +
> +float results1[16] =
> {192.00,240.00,288.00,336.00,384.00,432.00,480.00,528.00,0.00};
> +float results2[16] =
> {0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,54.00,120.00,198.00,288.00,390.00,504.00,630.00};
> +float a[16] = {0};
> +float e[16] = {0};
> +float b[16] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
> +int main1 ()
> +{
> + int i;
> + for (i=0; i<16; i++)
> + {
> + if (a[i] != results1[i] || e[i] != results2[i])
> + abort();
> + }
> +
> + if (a[i+3] != b[i-1])
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_48.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_48.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..77043182860321a9e265a89ad8f29ec7946b17e8
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_48.c
> @@ -0,0 +1,13 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int main (void)
> +{
> + signed char a[50], b[50], c[50];
> + for (int i = 0; i < 50; ++i)
> + if (a[i] != ((((signed int) -1 < 0 ? -126 : 4) + ((signed int) -1 < 0 ?
> -101 : 26) + i * 9 + 0) >> 1))
> + __builtin_abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_49.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_49.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..bc9e5bf899a54c5b2ef67e0193d56b243ec5f043
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_49.c
> @@ -0,0 +1,24 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +void abort();
> +struct foostr {
> + _Complex short f1;
> + _Complex short f2;
> +};
> +struct foostr a[16] __attribute__ ((__aligned__(16))) = {};
> +struct foostr c[16] __attribute__ ((__aligned__(16)));
> +struct foostr res[16] = {};
> +void
> +foo (void)
> +{
> + int i;
> + for (i = 0; i < 16; i++)
> + {
> + if (c[i].f1 != res[i].f1)
> + abort ();
> + if (c[i].f2 != res[i].f2)
> + abort ();
> + }
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_5.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_5.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..4a36d6979db1fd1f97ba2a290f78ac3b84f6de24
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_5.c
> @@ -0,0 +1,24 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 1024
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] = x + i;
> + if (vect_a[i] > x)
> + return vect_a[i];
> + vect_a[i] = x;
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_50.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_50.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..e2ac8283091597f6f4776560c86f89d1f98b58ee
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_50.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +extern void abort();
> +float a[1024], b[1024], c[1024], d[1024];
> +_Bool k[1024];
> +
> +int main ()
> +{
> + int i;
> + for (i = 0; i < 1024; i++)
> + if (k[i] != ((i % 3) == 0 && ((i / 9) % 3) == 0))
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_51.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_51.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..af036079457a7f5e50eae5a9ad4c952f33e62f87
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_51.c
> @@ -0,0 +1,25 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int x_in[32];
> +int x_out_a[32], x_out_b[32];
> +int c[16] = {3,2,1,10,1,42,3,4,50,9,32,8,11,10,1,2};
> +int a[16 +1] = {0,16,32,48,64,128,256,512,0,16,32,48,64,128,256,512,1024};
> +int b[16 +1] = {17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1};
> +
> +void foo ()
> +{
> + int j, i, x;
> + int curr_a, flag, next_a, curr_b, next_b;
> + {
> + for (i = 0; i < 16; i++)
> + {
> + next_b = b[i+1];
> + curr_b = flag ? next_b : curr_b;
> + }
> + x_out_b[j] = curr_b;
> + }
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_52.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_52.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..85cdfe0938e4093c7725e7f397accf26198f6a53
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_52.c
> @@ -0,0 +1,20 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +void abort();
> +int main1 (short X)
> +{
> + unsigned char a[128];
> + unsigned short b[128];
> + unsigned int c[128];
> + short myX = X;
> + int i;
> + for (i = 0; i < 128; i++)
> + {
> + if (a[i] != (unsigned char)myX || b[i] != myX || c[i] != (unsigned
> int)myX++)
> + abort ();
> + }
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_53.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_53.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..f066ddcfe458ca04bb1336f832121c91d7a3e80e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_53.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +void abort ();
> +int a[64], b[64];
> +int main ()
> +{
> + int c = 7;
> + for (int i = 1; i < 64; ++i)
> + if (b[i] != a[i] - a[i-1])
> + abort ();
> + if (b[0] != -7)
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_54.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_54.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9d0dd8dc5fccb05aeabcbce4014c4994bafdfb05
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_54.c
> @@ -0,0 +1,29 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + unsigned tmp[N];
> + for (int i = 0; i < N; i++)
> + {
> + tmp[i] = x + i;
> + vect_b[i] = tmp[i];
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_55.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_55.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..073cbdf614f81525975dbd188632582218e60e9e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_55.c
> @@ -0,0 +1,28 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + volatile unsigned tmp = x + i;
> + vect_b[i] = tmp;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_56.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_56.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9086e885f56974d17f8cdf2dce4c6a44e580d74b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_56.c
> @@ -0,0 +1,101 @@
> +/* Disabling epilogues until we find a better way to deal with scans. */
> +/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
> +/* { dg-require-effective-target vect_int } */
> +/* { dg-add-options bind_pic_locally } */
> +/* { dg-require-effective-target vect_early_break } */
> +
> +#include <stdarg.h>
> +#include "tree-vect.h"
> +
> +#define N 32
> +
> +unsigned short sa[N];
> +unsigned short sc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
> + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
> +unsigned short sb[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
> + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
> +unsigned int ia[N];
> +unsigned int ic[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
> + 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
> +unsigned int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
> + 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
> +
> +/* Current peeling-for-alignment scheme will consider the 'sa[i+7]'
> + access for peeling, and therefore will examine the option of
> + using a peeling factor = VF-7%VF. This will result in a peeling factor 1,
> + which will also align the access to 'ia[i+3]', and the loop could be
> + vectorized on all targets that support unaligned loads.
> + Without cost model on targets that support misaligned stores, no peeling
> + will be applied since we want to keep the four loads aligned. */
> +
> +__attribute__ ((noinline))
> +int main1 ()
> +{
> + int i;
> + int n = N - 7;
> +
> + /* Multiple types with different sizes, used in independent
> + copmutations. Vectorizable. */
> + for (i = 0; i < n; i++)
> + {
> + sa[i+7] = sb[i] + sc[i];
> + ia[i+3] = ib[i] + ic[i];
> + }
> +
> + /* check results: */
> + for (i = 0; i < n; i++)
> + {
> + if (sa[i+7] != sb[i] + sc[i] || ia[i+3] != ib[i] + ic[i])
> + abort ();
> + }
> +
> + return 0;
> +}
> +
> +/* Current peeling-for-alignment scheme will consider the 'ia[i+3]'
> + access for peeling, and therefore will examine the option of
> + using a peeling factor = VF-3%VF. This will result in a peeling factor
> + 1 if VF=4,2. This will not align the access to 'sa[i+3]', for which we
> + need to peel 5,1 iterations for VF=4,2 respectively, so the loop can not
> + be vectorized. However, 'ia[i+3]' also gets aligned if we peel 5
> + iterations, so the loop is vectorizable on all targets that support
> + unaligned loads.
> + Without cost model on targets that support misaligned stores, no peeling
> + will be applied since we want to keep the four loads aligned. */
> +
> +__attribute__ ((noinline))
> +int main2 ()
> +{
> + int i;
> + int n = N-3;
> +
> + /* Multiple types with different sizes, used in independent
> + copmutations. Vectorizable. */
> + for (i = 0; i < n; i++)
> + {
> + ia[i+3] = ib[i] + ic[i];
> + sa[i+3] = sb[i] + sc[i];
> + }
> +
> + /* check results: */
> + for (i = 0; i < n; i++)
> + {
> + if (sa[i+3] != sb[i] + sc[i] || ia[i+3] != ib[i] + ic[i])
> + abort ();
> + }
> +
> + return 0;
> +}
> +
> +int main (void)
> +{
> + check_vect ();
> +
> + main1 ();
> + main2 ();
> +
> + return 0;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 2 "vect" { xfail {
> vect_early_break && { ! vect_hw_misalign } } } } } */
> +
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_57.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_57.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..be4a0c7426093059ce37a9f824defb7ae270094d
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_57.c
> @@ -0,0 +1,30 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +void abort ();
> +
> +unsigned short sa[32];
> +unsigned short sc[32] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
> + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
> +unsigned short sb[32] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
> + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
> +unsigned int ia[32];
> +unsigned int ic[32] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
> + 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
> +unsigned int ib[32] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
> + 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
> +
> +int main2 (int n)
> +{
> + int i;
> + for (i = 0; i < n; i++)
> + {
> + if (sa[i+3] != sb[i] + sc[i] || ia[i+3] != ib[i] + ic[i])
> + abort ();
> + }
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_58.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_58.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..84ea627b4927609079297f11674bdb4c6b301140
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_58.c
> @@ -0,0 +1,18 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +extern void abort();
> +float a[1024], b[1024], c[1024], d[1024];
> +_Bool k[1024];
> +
> +int main ()
> +{
> + int i;
> + for (i = 0; i < 1024; i++)
> + if (k[i] != ((i % 3) == 0))
> + abort ();
> +}
> +
> +/* Pattern didn't match inside gcond. */
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_59.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_59.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..193f14e8a4d90793f65a5902eabb8d06496bd6e1
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_59.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +extern void abort();
> +float a[1024], b[1024], c[1024], d[1024];
> +_Bool k[1024];
> +
> +int main ()
> +{
> + int i;
> + for (i = 0; i < 1024; i++)
> + if (k[i] != (i == 0))
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_6.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_6.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..63ff6662f5c2c93201897e43680daa580ed53867
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_6.c
> @@ -0,0 +1,26 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#define N 1024
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < (N/2); i+=2)
> + {
> + vect_b[i] = x + i;
> + vect_b[i+1] = x + i+1;
> + if (vect_a[i] > x || vect_a[i+1] > x)
> + break;
> + vect_a[i] += x * vect_b[i];
> + vect_a[i+1] += x * vect_b[i+1];
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_60.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_60.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..4c523d4e714ba67e84b213c2aaf3a56231f8b7e3
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_60.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +extern void abort();
> +float a[1024], b[1024], c[1024], d[1024];
> +_Bool k[1024];
> +
> +int main ()
> +{
> + char i;
> + for (i = 0; i < 1024; i++)
> + if (k[i] != (i == 0))
> + abort ();
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" {
> xfail *-*-* } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_61.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_61.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..a0c34f71e3bbd3516247a8e026fe513c25413252
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_61.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_float } */
> +
> +typedef float real_t;
> +__attribute__((aligned(64))) real_t a[32000], b[32000], c[32000];
> +real_t s482()
> +{
> + for (int nl = 0; nl < 10000; nl++) {
> + for (int i = 0; i < 32000; i++) {
> + a[i] += b[i] * c[i];
> + if (c[i] > b[i]) break;
> + }
> + }
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_62.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_62.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9b94772934f75e685d71a41f3a0336fbfb7320d5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_62.c
> @@ -0,0 +1,20 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int a, b;
> +int e() {
> + int d, c;
> + d = 0;
> + for (; d < b; d++)
> + a = 0;
> + d = 0;
> + for (; d < b; d++)
> + if (d)
> + c++;
> + for (;;)
> + if (c)
> + break;
> +}
> +
> +/* { dg-final { scan-tree-dump "vectorized 1 loops in function" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_63.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_63.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..11f7fb8547b351734a964175380d1ada696011ae
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_63.c
> @@ -0,0 +1,28 @@
> +/* Disabling epilogues until we find a better way to deal with scans. */
> +/* { dg-do compile } */
> +/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
> +/* { dg-require-effective-target vect_long } */
> +/* { dg-require-effective-target vect_shift } */
> +/* { dg-additional-options "-fno-tree-scev-cprop" } */
> +
> +/* Statement used outside the loop.
> + NOTE: SCEV disabled to ensure the live operation is not removed before
> + vectorization. */
> +__attribute__ ((noinline)) int
> +liveloop (int start, int n, int *x, int *y)
> +{
> + int i = start;
> + int j;
> + int ret;
> +
> + for (j = 0; j < n; ++j)
> + {
> + i += 1;
> + x[j] = i;
> + ret = y[j];
> + }
> + return ret;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
> +/* { dg-final { scan-tree-dump-times "vec_stmt_relevant_p: stmt live but not
> relevant" 1 "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_64.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_64.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..32b9c087feba1780223e3aee8a2636c99990408c
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_64.c
> @@ -0,0 +1,17 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +/* { dg-additional-options "-fdump-tree-vect-all" } */
> +
> +int d(unsigned);
> +
> +void a() {
> + char b[8];
> + unsigned c = 0;
> + while (c < 7 && b[c])
> + ++c;
> + if (d(c))
> + return;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target
> vect_partial_vectors } } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_65.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_65.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..577c4e96ba91d4dd4aa448233c632de508286eb9
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_65.c
> @@ -0,0 +1,19 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +/* { dg-options "-Ofast -fno-vect-cost-model -fdump-tree-vect-details" } */
> +
> +enum a { b };
> +
> +struct {
> + enum a c;
> +} d[10], *e;
> +
> +void f() {
> + int g;
> + for (g = 0, e = d; g < sizeof(1); g++, e++)
> + if (e->c)
> + return;
> +}
> +
> +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_66.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_66.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..b56a4f755f89225cedd8c156cc7385fe5e07eee5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_66.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +int a[0];
> +int b;
> +
> +void g();
> +
> +void f() {
> + int d, e;
> + for (; e; e++) {
> + int c;
> + switch (b)
> + case '9': {
> + for (; d < 1; d++)
> + if (a[d])
> + c = 1;
> + break;
> + case '<':
> + g();
> + c = 0;
> + }
> + while (c)
> + ;
> + }
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_67.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_67.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..80f23d1e2431133035895946a5d6b24bef3ca294
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_67.c
> @@ -0,0 +1,41 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target int32plus } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +
> +
> +int main()
> +{
> + int var6 = -1267827473;
> + do {
> + ++var6;
> + double s1_115[4], s2_108[4];
> + int var8 = -161498264;
> + do {
> + ++var8;
> + int var12 = 1260960076;
> + for (; var12 <= 1260960080; ++var12) {
> + int var13 = 1960990937;
> + do {
> + ++var13;
> + int var14 = 2128638723;
> + for (; var14 <= 2128638728; ++var14) {
> + int var22 = -1141190839;
> + do {
> + ++var22;
> + if (s2_108 > s1_115) {
> + int var23 = -890798748;
> + do {
> + long long e_119[4];
> + } while (var23 <= -890798746);
> + }
> + } while (var22 <= -1141190829);
> + }
> + } while (var13 <= 1960990946);
> + }
> + } while (var8 <= -161498254);
> + } while (var6 <= -1267827462);
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_68.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_68.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..c9a8298a8b51e05079041ae7a05086a47b1be5dd
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_68.c
> @@ -0,0 +1,41 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 800
> +#endif
> +unsigned vect_a1[N];
> +unsigned vect_b1[N];
> +unsigned vect_c1[N];
> +unsigned vect_d1[N];
> +
> +unsigned vect_a2[N];
> +unsigned vect_b2[N];
> +unsigned vect_c2[N];
> +unsigned vect_d2[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b1[i] += x + i;
> + vect_c1[i] += x + i;
> + vect_d1[i] += x + i;
> + if (vect_a1[i]*2 != x)
> + break;
> + vect_a1[i] = x;
> +
> + vect_b2[i] += x + i;
> + vect_c2[i] += x + i;
> + vect_d2[i] += x + i;
> + if (vect_a2[i]*2 != x)
> + break;
> + vect_a2[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_69.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_69.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..f99de8e1f0650a3b590ed8bd9052e18173fc97d0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_69.c
> @@ -0,0 +1,76 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +# define BITSIZEOF_INT 32
> +# define BITSIZEOF_LONG 64
> +# define BITSIZEOF_LONG_LONG 64
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +int my_ffs##suffix(type x) { \
> + int i; \
> + if (x == 0)
> \
> + return 0; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + break; \
> + return i + 1; \
> +} \
> + \
> +int my_clz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << ((CHAR_BIT * sizeof (type)) - i - 1))) \
> + break; \
> + return i;
> \
> +}
> +
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +
> +unsigned int ints[] = NUMS32;
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> + for (i = 0; i < N(ints); i++)
> + {
> + if (__builtin_ffs (ints[i]) != my_ffs (ints[i]))
> + abort ();
> + if (ints[i] != 0
> + && __builtin_clz (ints[i]) != my_clz (ints[i]))
> + abort ();
> + }
> +
> + exit (0);
> +}
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_7.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_7.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..10fd8b42952c42f3d3a014da103931ca394423d5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_7.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <complex.h>
> +
> +#define N 1024
> +complex double vect_a[N];
> +complex double vect_b[N];
> +
> +complex double test4(complex double x)
> +{
> + complex double ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] += x + i;
> + if (vect_a[i] == x)
> + break;
> + vect_a[i] += x * vect_b[i];
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_70.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_70.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..9073130197e124527f8e38c238d8f13452a7780e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_70.c
> @@ -0,0 +1,68 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +# define BITSIZEOF_INT 32
> +# define BITSIZEOF_LONG 64
> +# define BITSIZEOF_LONG_LONG 64
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +__attribute__((noinline)) \
> +int my_clz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << ((CHAR_BIT * sizeof (type)) - i - 1))) \
> + break; \
> + return i;
> \
> +}
> +
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +
> +unsigned int ints[] = NUMS32;
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(ints); i++)
> + {
> + if (ints[i] != 0
> + && __builtin_clz (ints[i]) != my_clz (ints[i]))
> + abort ();
> + }
> +
> + exit (0);
> + return 0;
> +}
> +
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_71.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_71.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..c6d6eb526e618ee93547e04eaba3c6a159a18075
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_71.c
> @@ -0,0 +1,68 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +# define BITSIZEOF_INT 32
> +# define BITSIZEOF_LONG 64
> +# define BITSIZEOF_LONG_LONG 64
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +__attribute__((noinline)) \
> +int my_ffs##suffix(type x) { \
> + int i; \
> + if (x == 0)
> \
> + return 0; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + break; \
> + return i + 1; \
> +}
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +
> +unsigned int ints[] = NUMS32;
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(ints); i++)
> + {
> + if (__builtin_ffs (ints[i]) != my_ffs (ints[i]))
> + abort ();
> + }
> +
> + exit (0);
> +}
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_72.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_72.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..0f0a1f30ab95bf540027efa8c03aff8fe03a960b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_72.c
> @@ -0,0 +1,147 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +#if __INT_MAX__ > 2147483647L
> +# if __INT_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_INT 64
> +# else
> +# define BITSIZEOF_INT 32
> +# endif
> +#else
> +# if __INT_MAX__ >= 2147483647L
> +# define BITSIZEOF_INT 32
> +# else
> +# define BITSIZEOF_INT 16
> +# endif
> +#endif
> +
> +#if __LONG_MAX__ > 2147483647L
> +# if __LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG 64
> +# else
> +# define BITSIZEOF_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG 32
> +#endif
> +
> +#if __LONG_LONG_MAX__ > 2147483647L
> +# if __LONG_LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG_LONG 64
> +# else
> +# define BITSIZEOF_LONG_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG_LONG 32
> +#endif
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +__attribute__((noinline)) \
> +int my_ctz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + break; \
> + return i;
> \
> +}
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS16 \
> + { \
> + 0x0000U, \
> + 0x0001U, \
> + 0x8000U, \
> + 0x0002U, \
> + 0x4000U, \
> + 0x0100U, \
> + 0x0080U, \
> + 0xa5a5U, \
> + 0x5a5aU, \
> + 0xcafeU, \
> + 0xffffU \
> + }
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +#define NUMS64 \
> + { \
> + 0x0000000000000000ULL, \
> + 0x0000000000000001ULL, \
> + 0x8000000000000000ULL, \
> + 0x0000000000000002ULL, \
> + 0x4000000000000000ULL, \
> + 0x0000000100000000ULL, \
> + 0x0000000080000000ULL, \
> + 0xa5a5a5a5a5a5a5a5ULL, \
> + 0x5a5a5a5a5a5a5a5aULL, \
> + 0xcafecafe00000000ULL, \
> + 0x0000cafecafe0000ULL, \
> + 0x00000000cafecafeULL, \
> + 0xffffffffffffffffULL \
> + }
> +
> +unsigned int ints[] =
> +#if BITSIZEOF_INT == 64
> +NUMS64;
> +#elif BITSIZEOF_INT == 32
> +NUMS32;
> +#else
> +NUMS16;
> +#endif
> +
> +unsigned long longs[] =
> +#if BITSIZEOF_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +unsigned long long longlongs[] =
> +#if BITSIZEOF_LONG_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(ints); i++)
> + {
> + if (ints[i] != 0
> + && __builtin_ctz (ints[i]) != my_ctz (ints[i]))
> + abort ();
> + }
> +
> + exit (0);
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_73.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_73.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..5cce21cd16aa89d96cdac2b302d29ee918b67249
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_73.c
> @@ -0,0 +1,68 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +# define BITSIZEOF_INT 32
> +# define BITSIZEOF_LONG 64
> +# define BITSIZEOF_LONG_LONG 64
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +__attribute__((noinline)) \
> +int my_clz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << ((CHAR_BIT * sizeof (type)) - i - 1))) \
> + break; \
> + return i;
> \
> +}
> +
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +
> +unsigned int ints[] = NUMS32;
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(ints); i++)
> + {
> + if (ints[i] != 0
> + && __builtin_clz (ints[i]) != my_clz (ints[i]))
> + abort ();
> + }
> +
> + exit (0);
> +}
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_74.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_74.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..83676da28884e79874fb0b5cc6a434a0fe6b87cf
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_74.c
> @@ -0,0 +1,161 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +#if __INT_MAX__ > 2147483647L
> +# if __INT_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_INT 64
> +# else
> +# define BITSIZEOF_INT 32
> +# endif
> +#else
> +# if __INT_MAX__ >= 2147483647L
> +# define BITSIZEOF_INT 32
> +# else
> +# define BITSIZEOF_INT 16
> +# endif
> +#endif
> +
> +#if __LONG_MAX__ > 2147483647L
> +# if __LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG 64
> +# else
> +# define BITSIZEOF_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG 32
> +#endif
> +
> +#if __LONG_LONG_MAX__ > 2147483647L
> +# if __LONG_LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG_LONG 64
> +# else
> +# define BITSIZEOF_LONG_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG_LONG 32
> +#endif
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +int my_clrsb##suffix(type x) {
> \
> + int i; \
> + int leading = (x >> CHAR_BIT * sizeof (type) - 1) & 1; \
> + for (i = 1; i < CHAR_BIT * sizeof (type); i++) \
> + if (((x >> ((CHAR_BIT * sizeof (type)) - i - 1)) & 1) \
> + != leading) \
> + break; \
> + return i - 1; \
> +}
> +
> +MAKE_FUNS (, unsigned);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS16 \
> + { \
> + 0x0000U, \
> + 0x0001U, \
> + 0x8000U, \
> + 0x0002U, \
> + 0x4000U, \
> + 0x0100U, \
> + 0x0080U, \
> + 0xa5a5U, \
> + 0x5a5aU, \
> + 0xcafeU, \
> + 0xffffU \
> + }
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +#define NUMS64 \
> + { \
> + 0x0000000000000000ULL, \
> + 0x0000000000000001ULL, \
> + 0x8000000000000000ULL, \
> + 0x0000000000000002ULL, \
> + 0x4000000000000000ULL, \
> + 0x0000000100000000ULL, \
> + 0x0000000080000000ULL, \
> + 0xa5a5a5a5a5a5a5a5ULL, \
> + 0x5a5a5a5a5a5a5a5aULL, \
> + 0xcafecafe00000000ULL, \
> + 0x0000cafecafe0000ULL, \
> + 0x00000000cafecafeULL, \
> + 0xffffffffffffffffULL \
> + }
> +
> +unsigned int ints[] =
> +#if BITSIZEOF_INT == 64
> +NUMS64;
> +#elif BITSIZEOF_INT == 32
> +NUMS32;
> +#else
> +NUMS16;
> +#endif
> +
> +unsigned long longs[] =
> +#if BITSIZEOF_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +unsigned long long longlongs[] =
> +#if BITSIZEOF_LONG_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> + /* Test constant folding. */
> +
> +#define TEST(x, suffix)
> \
> + if (__builtin_clrsb##suffix (x) != my_clrsb##suffix (x)) \
> + abort ();
> +
> +#if BITSIZEOF_INT == 32
> + TEST(0x00000000UL,);
> + TEST(0x00000001UL,);
> + TEST(0x80000000UL,);
> + TEST(0x40000000UL,);
> + TEST(0x00010000UL,);
> + TEST(0x00008000UL,);
> + TEST(0xa5a5a5a5UL,);
> + TEST(0x5a5a5a5aUL,);
> + TEST(0xcafe0000UL,);
> + TEST(0x00cafe00UL,);
> + TEST(0x0000cafeUL,);
> + TEST(0xffffffffUL,);
> +#endif
> +
> + exit (0);
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_75.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_75.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..cc1ce4cf298ee0747f41ea4941af5a65f8a688ef
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_75.c
> @@ -0,0 +1,230 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-O3" } */
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +#if __INT_MAX__ > 2147483647L
> +# if __INT_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_INT 64
> +# else
> +# define BITSIZEOF_INT 32
> +# endif
> +#else
> +# if __INT_MAX__ >= 2147483647L
> +# define BITSIZEOF_INT 32
> +# else
> +# define BITSIZEOF_INT 16
> +# endif
> +#endif
> +
> +#if __LONG_MAX__ > 2147483647L
> +# if __LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG 64
> +# else
> +# define BITSIZEOF_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG 32
> +#endif
> +
> +#if __LONG_LONG_MAX__ > 2147483647L
> +# if __LONG_LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG_LONG 64
> +# else
> +# define BITSIZEOF_LONG_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG_LONG 32
> +#endif
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +__attribute__((noinline)) \
> +int my_ffs##suffix(type x) { \
> + int i; \
> + if (x == 0)
> \
> + return 0; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + break; \
> + return i + 1; \
> +} \
> + \
> +int my_ctz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + break; \
> + return i;
> \
> +} \
> + \
> +__attribute__((noinline)) \
> +int my_clz##suffix(type x) { \
> + int i; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << ((CHAR_BIT * sizeof (type)) - i - 1))) \
> + break; \
> + return i;
> \
> +} \
> + \
> +int my_clrsb##suffix(type x) {
> \
> + int i; \
> + int leading = (x >> CHAR_BIT * sizeof (type) - 1) & 1; \
> + for (i = 1; i < CHAR_BIT * sizeof (type); i++) \
> + if (((x >> ((CHAR_BIT * sizeof (type)) - i - 1)) & 1) \
> + != leading) \
> + break; \
> + return i - 1; \
> +} \
> + \
> +__attribute__((noinline)) \
> +int my_popcount##suffix(type x) { \
> + int i; \
> + int count = 0; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + count++; \
> + return count; \
> +} \
> + \
> +__attribute__((noinline)) \
> +int my_parity##suffix(type x) {
> \
> + int i; \
> + int count = 0; \
> + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \
> + if (x & ((type) 1 << i)) \
> + count++; \
> + return count & 1;
> \
> +}
> +
> +MAKE_FUNS (ll, unsigned long long);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS16 \
> + { \
> + 0x0000U, \
> + 0x0001U, \
> + 0x8000U, \
> + 0x0002U, \
> + 0x4000U, \
> + 0x0100U, \
> + 0x0080U, \
> + 0xa5a5U, \
> + 0x5a5aU, \
> + 0xcafeU, \
> + 0xffffU \
> + }
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +#define NUMS64 \
> + { \
> + 0x0000000000000000ULL, \
> + 0x0000000000000001ULL, \
> + 0x8000000000000000ULL, \
> + 0x0000000000000002ULL, \
> + 0x4000000000000000ULL, \
> + 0x0000000100000000ULL, \
> + 0x0000000080000000ULL, \
> + 0xa5a5a5a5a5a5a5a5ULL, \
> + 0x5a5a5a5a5a5a5a5aULL, \
> + 0xcafecafe00000000ULL, \
> + 0x0000cafecafe0000ULL, \
> + 0x00000000cafecafeULL, \
> + 0xffffffffffffffffULL \
> + }
> +
> +unsigned int ints[] =
> +#if BITSIZEOF_INT == 64
> +NUMS64;
> +#elif BITSIZEOF_INT == 32
> +NUMS32;
> +#else
> +NUMS16;
> +#endif
> +
> +unsigned long longs[] =
> +#if BITSIZEOF_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +unsigned long long longlongs[] =
> +#if BITSIZEOF_LONG_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(longlongs); i++)
> + {
> + if (__builtin_ffsll (longlongs[i]) != my_ffsll (longlongs[i]))
> + abort ();
> + if (longlongs[i] != 0
> + && __builtin_clzll (longlongs[i]) != my_clzll (longlongs[i]))
> + abort ();
> + if (longlongs[i] != 0
> + && __builtin_ctzll (longlongs[i]) != my_ctzll (longlongs[i]))
> + abort ();
> + if (__builtin_clrsbll (longlongs[i]) != my_clrsbll (longlongs[i]))
> + abort ();
> + if (__builtin_popcountll (longlongs[i]) != my_popcountll
> (longlongs[i]))
> + abort ();
> + if (__builtin_parityll (longlongs[i]) != my_parityll (longlongs[i]))
> + abort ();
> + }
> +
> + /* Test constant folding. */
> +
> +#define TEST(x, suffix)
> \
> + if (__builtin_ffs##suffix (x) != my_ffs##suffix (x))
> \
> + abort ();
> \
> +
> +#if BITSIZEOF_LONG_LONG == 64
> + TEST(0x0000000000000000ULL, ll);
> + TEST(0x0000000000000001ULL, ll);
> + TEST(0x8000000000000000ULL, ll);
> + TEST(0x0000000000000002ULL, ll);
> + TEST(0x4000000000000000ULL, ll);
> + TEST(0x0000000100000000ULL, ll);
> + TEST(0x0000000080000000ULL, ll);
> + TEST(0xa5a5a5a5a5a5a5a5ULL, ll);
> + TEST(0x5a5a5a5a5a5a5a5aULL, ll);
> + TEST(0xcafecafe00000000ULL, ll);
> + TEST(0x0000cafecafe0000ULL, ll);
> + TEST(0x00000000cafecafeULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> +#endif
> +
> + exit (0);
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_76.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_76.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..adba337b101f4d7cafaa50329a933594b0d501ad
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_76.c
> @@ -0,0 +1,165 @@
> +/* { dg-do run } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-O3" } */
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <limits.h>
> +#include <assert.h>
> +
> +#if __INT_MAX__ > 2147483647L
> +# if __INT_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_INT 64
> +# else
> +# define BITSIZEOF_INT 32
> +# endif
> +#else
> +# if __INT_MAX__ >= 2147483647L
> +# define BITSIZEOF_INT 32
> +# else
> +# define BITSIZEOF_INT 16
> +# endif
> +#endif
> +
> +#if __LONG_MAX__ > 2147483647L
> +# if __LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG 64
> +# else
> +# define BITSIZEOF_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG 32
> +#endif
> +
> +#if __LONG_LONG_MAX__ > 2147483647L
> +# if __LONG_LONG_MAX__ >= 9223372036854775807L
> +# define BITSIZEOF_LONG_LONG 64
> +# else
> +# define BITSIZEOF_LONG_LONG 32
> +# endif
> +#else
> +# define BITSIZEOF_LONG_LONG 32
> +#endif
> +
> +#define MAKE_FUNS(suffix, type)
> \
> +int my_clrsb##suffix(type x) {
> \
> + int i; \
> + int leading = (x >> CHAR_BIT * sizeof (type) - 1) & 1; \
> + for (i = 1; i < CHAR_BIT * sizeof (type); i++) \
> + if (((x >> ((CHAR_BIT * sizeof (type)) - i - 1)) & 1) \
> + != leading) \
> + break; \
> + return i - 1; \
> +} \
> + \
> +
> +MAKE_FUNS (, unsigned);
> +MAKE_FUNS (ll, unsigned long long);
> +
> +extern void abort (void);
> +extern void exit (int);
> +
> +#define NUMS16 \
> + { \
> + 0x0000U, \
> + 0x0001U, \
> + 0x8000U, \
> + 0x0002U, \
> + 0x4000U, \
> + 0x0100U, \
> + 0x0080U, \
> + 0xa5a5U, \
> + 0x5a5aU, \
> + 0xcafeU, \
> + 0xffffU \
> + }
> +
> +#define NUMS32 \
> + { \
> + 0x00000000UL, \
> + 0x00000001UL, \
> + 0x80000000UL, \
> + 0x00000002UL, \
> + 0x40000000UL, \
> + 0x00010000UL, \
> + 0x00008000UL, \
> + 0xa5a5a5a5UL, \
> + 0x5a5a5a5aUL, \
> + 0xcafe0000UL, \
> + 0x00cafe00UL, \
> + 0x0000cafeUL, \
> + 0xffffffffUL \
> + }
> +
> +#define NUMS64 \
> + { \
> + 0x0000000000000000ULL, \
> + 0x0000000000000001ULL, \
> + 0x8000000000000000ULL, \
> + 0x0000000000000002ULL, \
> + 0x4000000000000000ULL, \
> + 0x0000000100000000ULL, \
> + 0x0000000080000000ULL, \
> + 0xa5a5a5a5a5a5a5a5ULL, \
> + 0x5a5a5a5a5a5a5a5aULL, \
> + 0xcafecafe00000000ULL, \
> + 0x0000cafecafe0000ULL, \
> + 0x00000000cafecafeULL, \
> + 0xffffffffffffffffULL \
> + }
> +
> +unsigned int ints[] =
> +#if BITSIZEOF_INT == 64
> +NUMS64;
> +#elif BITSIZEOF_INT == 32
> +NUMS32;
> +#else
> +NUMS16;
> +#endif
> +
> +unsigned long longs[] =
> +#if BITSIZEOF_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +unsigned long long longlongs[] =
> +#if BITSIZEOF_LONG_LONG == 64
> +NUMS64;
> +#else
> +NUMS32;
> +#endif
> +
> +#define N(table) (sizeof (table) / sizeof (table[0]))
> +
> +int
> +main (void)
> +{
> + int i;
> +
> +#pragma GCC novector
> + for (i = 0; i < N(ints); i++)
> + {
> + if (__builtin_clrsb (ints[i]) != my_clrsb (ints[i]))
> + abort ();
> + }
> +
> + /* Test constant folding. */
> +
> +#define TEST(x, suffix)
> \
> + if (__builtin_clrsb##suffix (x) != my_clrsb##suffix (x)) \
> + abort ();
> +
> +#if BITSIZEOF_LONG_LONG == 64
> + TEST(0xffffffffffffffffULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> + TEST(0xffffffffffffffffULL, ll);
> +#endif
> +
> + exit (0);
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_8.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_8.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..ae706b2952cfcecf20546a67a735b8d902cbb607
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_8.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#include <complex.h>
> +
> +#define N 1024
> +char vect_a[N];
> +char vect_b[N];
> +
> +char test4(char x, char * restrict res)
> +{
> + char ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_b[i] += x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] += x * vect_b[i];
> + res[i] *= vect_b[i];
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_9.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_9.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..4e8b5bdea5ff9aa0cadbea0af10d51707da011c5
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_9.c
> @@ -0,0 +1,27 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target vect_early_break } */
> +/* { dg-require-effective-target vect_int } */
> +
> +/* { dg-additional-options "-Ofast" } */
> +
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +
> +#ifndef N
> +#define N 803
> +#endif
> +unsigned vect_a[N];
> +unsigned vect_b[N];
> +
> +unsigned test4(unsigned x)
> +{
> + unsigned ret = 0;
> + for (int i = 0; i < N; i++)
> + {
> + vect_a[i] = x + i;
> + if (vect_a[i] > x)
> + break;
> + vect_a[i] = x;
> +
> + }
> + return ret;
> +}
> diff --git a/gcc/testsuite/gcc.target/aarch64/opt_mismatch_1.c
> b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_1.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..571aec0ccfdbcdc318ba1f17de31958c16b3e9bc
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_1.c
> @@ -0,0 +1,6 @@
> +/* { dg-do compile } */
> +/* { dg-additional-options "-march=armv8.3-a -mcpu=neoverse-n1" } */
> +
> +#include <arm_neon.h>
> +
> +/* { dg-warning "switch ?-mcpu=neoverse-n1? conflicts with
> ?-march=armv8.3-a? switch and would result in options
> \\+fp16\\+dotprod\\+profile\\+nopauth" "" { target *-*-* } 0 } */
> diff --git a/gcc/testsuite/gcc.target/aarch64/opt_mismatch_2.c
> b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_2.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..cee42c84c4f762a4d4773ea4380163742b5137b0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_2.c
> @@ -0,0 +1,6 @@
> +/* { dg-do compile } */
> +/* { dg-additional-options "-march=armv8-a+sve -mcpu=neoverse-n1" } */
> +
> +#include <arm_neon.h>
> +
> +/* { dg-warning "switch ?-mcpu=neoverse-n1? conflicts with
> ?-march=armv8-a+sve? switch and would result in options
> \\+lse\\+rcpc\\+rdma\\+dotprod\\+profile\\+nosve" } */
> diff --git a/gcc/testsuite/gcc.target/aarch64/opt_mismatch_3.c
> b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_3.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..0a05b98eedb8bd743bb5af8e4dd3c95aab001c4b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/aarch64/opt_mismatch_3.c
> @@ -0,0 +1,5 @@
> +/* { dg-do compile } */
> +/* { dg-additional-options "-march=armv8-a -mcpu=neovese-n1 -Wpedentic
> -Werror" } */
> +
> +#include <arm_neon.h>
> +
> diff --git a/gcc/testsuite/gcc.target/aarch64/vect-early-break-cbranch_1.c
> b/gcc/testsuite/gcc.target/aarch64/vect-early-break-cbranch_1.c
> new file mode 100644
> index
> 0000000000000000000000000000000000000000..c0363c3787270507d7902bb2ac0e39faef63a852
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/aarch64/vect-early-break-cbranch_1.c
> @@ -0,0 +1,124 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O3" } */
> +/* { dg-final { check-function-bodies "**" "" "" { target lp64 } } } */
> +
> +#pragma GCC target "+nosve"
> +
> +#define N 640
> +int a[N] = {0};
> +int b[N] = {0};
> +
> +
> +/*
> +** f1:
> +** ...
> +** cmgt v[0-9]+.4s, v[0-9]+.4s, #0
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f1 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] > 0)
> + break;
> + }
> +}
> +
> +/*
> +** f2:
> +** ...
> +** cmge v[0-9]+.4s, v[0-9]+.4s, #0
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f2 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] >= 0)
> + break;
> + }
> +}
> +
> +/*
> +** f3:
> +** ...
> +** cmeq v[0-9]+.4s, v[0-9]+.4s, #0
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f3 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] == 0)
> + break;
> + }
> +}
> +
> +/*
> +** f4:
> +** ...
> +** cmtst v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f4 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] != 0)
> + break;
> + }
> +}
> +
> +/*
> +** f5:
> +** ...
> +** cmlt v[0-9]+.4s, v[0-9]+.4s, #0
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f5 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] < 0)
> + break;
> + }
> +}
> +
> +/*
> +** f6:
> +** ...
> +** cmle v[0-9]+.4s, v[0-9]+.4s, #0
> +** umaxp v[0-9]+.4s, v[0-9]+.4s, v[0-9]+.4s
> +** fmov x[0-9]+, d[0-9]+
> +** cbnz x[0-9]+, \.L[0-9]+
> +** ...
> +*/
> +void f6 ()
> +{
> + for (int i = 0; i < N; i++)
> + {
> + b[i] += a[i];
> + if (a[i] <= 0)
> + break;
> + }
> +}
> diff --git a/gcc/testsuite/lib/target-supports.exp
> b/gcc/testsuite/lib/target-supports.exp
> index
> f0b692a2e19bae3cf3ffee8f27bd39b05aba3b9c..1e47ae84080f9908736d1c3be9c14d589e8772a7
> 100644
> --- a/gcc/testsuite/lib/target-supports.exp
> +++ b/gcc/testsuite/lib/target-supports.exp
> @@ -3975,6 +3975,17 @@ proc check_effective_target_vect_int { } {
> }}]
> }
>
> +# Return 1 if the target supports hardware vectorization of early breaks,
> +# 0 otherwise.
> +#
> +# This won't change for different subtargets so cache the result.
> +
> +proc check_effective_target_vect_early_break { } {
> + return [check_cached_effective_target_indexed vect_early_break {
> + expr {
> + [istarget aarch64*-*-*]
> + }}]
> +}
> # Return 1 if the target supports hardware vectorization of complex
> additions of
> # byte, 0 otherwise.
> #
>
>
>
>
>
--
Richard Biener <[email protected]>
SUSE Software Solutions Germany GmbH,
Frankenstrasse 146, 90461 Nuernberg, Germany;
GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
