On Tue, Aug 31, 2021 at 7:56 PM Richard Biener
<[email protected]> wrote:
>
> On Tue, Aug 31, 2021 at 12:18 PM Hongtao Liu <[email protected]> wrote:
> >
> > On Mon, Aug 30, 2021 at 8:25 PM Richard Biener via Gcc-patches
> > <[email protected]> wrote:
> > >
> > > On Fri, Aug 27, 2021 at 8:53 AM liuhongt <[email protected]> wrote:
> > > >
> > > > When gimple simplifcation try to combine op and vec_cond_expr to
> > > > cond_op,
> > > > it doesn't check if mask type matches. It causes an ICE when expand
> > > > cond_op
> > > > with mismatched mode.
> > > > This patch add a function named
> > > > cond_vectorized_internal_fn_supported_p
> > > > to additionally check mask type than
> > > > vectorized_internal_fn_supported_p.
> > > >
> > > > Bootstrapped and regtested on x86_64-linux-gnu{-m32,}.
> > > > Ok for trunk?
> > > >
> > > > gcc/ChangeLog:
> > > >
> > > > PR middle-end/102080
> > > > * internal-fn.c (cond_vectorized_internal_fn_supported_p): New
> > > > functions.
> > > > * internal-fn.h (cond_vectorized_internal_fn_supported_p): New
> > > > declaration.
> > > > * match.pd: Check the type of mask while generating cond_op in
> > > > gimple simplication.
> > > >
> > > > gcc/testsuite/ChangeLog:
> > > >
> > > > PR middle-end/102080
> > > > * gcc.target/i386/pr102080.c: New test.
> > > > ---
> > > > gcc/internal-fn.c | 22 ++++++++++++++++++++++
> > > > gcc/internal-fn.h | 1 +
> > > > gcc/match.pd | 24 ++++++++++++++++--------
> > > > gcc/testsuite/gcc.target/i386/pr102080.c | 16 ++++++++++++++++
> > > > 4 files changed, 55 insertions(+), 8 deletions(-)
> > > > create mode 100644 gcc/testsuite/gcc.target/i386/pr102080.c
> > > >
> > > > diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c
> > > > index 1360a00f0b9..8b2b65db1a7 100644
> > > > --- a/gcc/internal-fn.c
> > > > +++ b/gcc/internal-fn.c
> > > > @@ -4102,6 +4102,28 @@ expand_internal_call (gcall *stmt)
> > > > expand_internal_call (gimple_call_internal_fn (stmt), stmt);
> > > > }
> > > >
> > > > +/* Check cond_op for vector modes since
> > > > vectorized_internal_fn_supported_p
> > > > + doesn't check if mask type matches. */
> > > > +bool
> > > > +cond_vectorized_internal_fn_supported_p (internal_fn ifn, tree type,
> > > > + tree mask_type)
> > > > +{
> > > > + if (!vectorized_internal_fn_supported_p (ifn, type))
> > > > + return false;
> > > > +
> > > > + machine_mode mask_mode;
> > > > + machine_mode vmode = TYPE_MODE (type);
> > > > + int size1, size2;
> > > > + if (VECTOR_MODE_P (vmode)
> > > > + && targetm.vectorize.get_mask_mode (vmode).exists(&mask_mode)
> > > > + && GET_MODE_SIZE (mask_mode).is_constant (&size1)
> > > > + && GET_MODE_SIZE (TYPE_MODE (mask_type)).is_constant (&size2)
> > > > + && size1 != size2)
> > >
> > > Why do we check for equal size rather than just mode equality which
> > I originally thought TYPE_MODE of vector(8) <signed-boolean:1> was
> > not QImode, Changed the patch to check mode equality.
> > Update patch.
>
> Looking at all this it seems the match.pd patterns should have not
> used vectorized_internal_fn_supported_p but direct_internal_fn_supported_p
> which is equivalent here because we're always working with vector modes?
>
> And then shouldn't we look at the actual optab whether the mask mode matches
> the expectation rather than going around via the target hook which may not
> have
> enough context to decide which mask mode to use?
How about this?
+/* Return true if target supports cond_op with data TYPE and
+ mask MASK_TYPE. */
+bool
+cond_internal_fn_supported_p (internal_fn ifn, tree type,
+ tree mask_type)
+{
+ tree_pair types = tree_pair (type, type);
+ optab tmp = direct_internal_fn_optab (ifn, types);
+ machine_mode vmode = TYPE_MODE (type);
+ insn_code icode = direct_optab_handler (tmp, vmode);
+ if (icode == CODE_FOR_nothing)
+ return false;
+
+ machine_mode mask_mode = TYPE_MODE (mask_type);
+ /* Can't create rtx and use insn_operand_matches here. */
+ return insn_data[icode].operand[0].mode == vmode
+ && insn_data[icode].operand[1].mode == mask_mode;
+}
+
Update patch
>
> In any case if the approach of the patch is correct shouldn't it do
>
> if (VECTOR_MODE_P (vmode)
> && (!targetm.vectorize.get_mask_mode (vmode).exists(&mask_mode)
> || mask_mode != TYPE_MODE (mask_type)))
> return false;
>
> that is, not return true if there's no mask mode for the data mode?
>
> Given the first observation should we call the function
> direct_cond_internal_fn_supported_p () instead and as to the second
> observation, look at the optab operands mode?
>
> Richard.
>
> > > I think would work for non-constant sized modes as well? And when
> > > using sizes you'd instead use maybe_ne (GET_MODE_SIZE (mask_mode),
> > > GET_MODE_SIZE (TYPE_MODE (mask_type)))
> > >
> > > Thanks,
> > > Richard.
> > >
> > > > + return false;
> > > > +
> > > > + return true;
> > > > +}
> > > > +
> > > > /* If TYPE is a vector type, return true if IFN is a direct internal
> > > > function that is supported for that type. If TYPE is a scalar type,
> > > > return true if IFN is a direct internal function that is supported
> > > > for
> > > > diff --git a/gcc/internal-fn.h b/gcc/internal-fn.h
> > > > index 19d0f849a5a..f0aea00103c 100644
> > > > --- a/gcc/internal-fn.h
> > > > +++ b/gcc/internal-fn.h
> > > > @@ -236,5 +236,6 @@ extern void expand_PHI (internal_fn, gcall *);
> > > > extern void expand_SHUFFLEVECTOR (internal_fn, gcall *);
> > > >
> > > > extern bool vectorized_internal_fn_supported_p (internal_fn, tree);
> > > > +extern bool cond_vectorized_internal_fn_supported_p (internal_fn,
> > > > tree, tree);
> > > >
> > > > #endif
> > > > diff --git a/gcc/match.pd b/gcc/match.pd
> > > > index e5bbb123a6a..72b1bc674db 100644
> > > > --- a/gcc/match.pd
> > > > +++ b/gcc/match.pd
> > > > @@ -6987,14 +6987,18 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
> > > > cond_op (COND_BINARY)
> > > > (simplify
> > > > (vec_cond @0 (view_convert? (uncond_op@4 @1 @2)) @3)
> > > > - (with { tree op_type = TREE_TYPE (@4); }
> > > > - (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op),
> > > > op_type)
> > > > + (with { tree op_type = TREE_TYPE (@4);
> > > > + tree mask_type = TREE_TYPE (@0); }
> > > > + (if (cond_vectorized_internal_fn_supported_p (as_internal_fn
> > > > (cond_op),
> > > > + op_type, mask_type)
> > > > && element_precision (type) == element_precision (op_type))
> > > > (view_convert (cond_op @0 @1 @2 (view_convert:op_type @3))))))
> > > > (simplify
> > > > (vec_cond @0 @1 (view_convert? (uncond_op@4 @2 @3)))
> > > > - (with { tree op_type = TREE_TYPE (@4); }
> > > > - (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op),
> > > > op_type)
> > > > + (with { tree op_type = TREE_TYPE (@4);
> > > > + tree mask_type = TREE_TYPE (@0); }
> > > > + (if (cond_vectorized_internal_fn_supported_p (as_internal_fn
> > > > (cond_op),
> > > > + op_type, mask_type)
> > > > && element_precision (type) == element_precision (op_type))
> > > > (view_convert (cond_op (bit_not @0) @2 @3 (view_convert:op_type
> > > > @1)))))))
> > > >
> > > > @@ -7003,14 +7007,18 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
> > > > cond_op (COND_TERNARY)
> > > > (simplify
> > > > (vec_cond @0 (view_convert? (uncond_op@5 @1 @2 @3)) @4)
> > > > - (with { tree op_type = TREE_TYPE (@5); }
> > > > - (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op),
> > > > op_type)
> > > > + (with { tree op_type = TREE_TYPE (@5);
> > > > + tree mask_type = TREE_TYPE (@0); }
> > > > + (if (cond_vectorized_internal_fn_supported_p (as_internal_fn
> > > > (cond_op),
> > > > + op_type, mask_type)
> > > > && element_precision (type) == element_precision (op_type))
> > > > (view_convert (cond_op @0 @1 @2 @3 (view_convert:op_type @4))))))
> > > > (simplify
> > > > (vec_cond @0 @1 (view_convert? (uncond_op@5 @2 @3 @4)))
> > > > - (with { tree op_type = TREE_TYPE (@5); }
> > > > - (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op),
> > > > op_type)
> > > > + (with { tree op_type = TREE_TYPE (@5);
> > > > + tree mask_type = TREE_TYPE (@0); }
> > > > + (if (cond_vectorized_internal_fn_supported_p (as_internal_fn
> > > > (cond_op),
> > > > + op_type, mask_type)
> > > > && element_precision (type) == element_precision (op_type))
> > > > (view_convert (cond_op (bit_not @0) @2 @3 @4
> > > > (view_convert:op_type @1)))))))
> > > > diff --git a/gcc/testsuite/gcc.target/i386/pr102080.c
> > > > b/gcc/testsuite/gcc.target/i386/pr102080.c
> > > > new file mode 100644
> > > > index 00000000000..6a40a75e1c5
> > > > --- /dev/null
> > > > +++ b/gcc/testsuite/gcc.target/i386/pr102080.c
> > > > @@ -0,0 +1,16 @@
> > > > +#include<immintrin.h>
> > > > +typedef float __m256 __attribute__((__vector_size__(32)));
> > > > +__m256 _mm256_blendv_ps___Y, _mm256_blendv_ps___M, _mm256_mul_ps___A,
> > > > + _mm256_mul_ps___B, IfThenElse___trans_tmp_9;
> > > > +
> > > > +void
> > > > +__attribute__ ((target("avx")))
> > > > +IfThenElse (__m256 no) {
> > > > + IfThenElse___trans_tmp_9 = _mm256_blendv_ps (no,
> > > > _mm256_blendv_ps___Y, _mm256_blendv_ps___M);
> > > > +}
> > > > +void
> > > > +__attribute__ ((target("avx512vl")))
> > > > +EncodedFromDisplay() {
> > > > + __m256 __trans_tmp_11 = _mm256_mul_ps___A * _mm256_mul_ps___B;
> > > > + IfThenElse(__trans_tmp_11);
> > > > +}
> > > > --
> > > > 2.18.1
> > > >
> >
> >
> >
> > --
> > BR,
> > Hongtao
--
BR,
Hongtao
From c9ea1ac434027a9fe0640e2be35fa676b77bc46e Mon Sep 17 00:00:00 2001
From: liuhongt <[email protected]>
Date: Fri, 27 Aug 2021 12:50:13 +0800
Subject: [PATCH v3] Check the type of mask while generating cond_op in gimple
simplication.
gcc/ChangeLog:
PR middle-end/102080
* internal-fn.c (cond_internal_fn_supported_p): New functions.
* internal-fn.h (cond_internal_fn_supported_p): New declaration.
* match.pd: Check the type of mask while generating cond_op in
gimple simplication.
gcc/testsuite/ChangeLog:
PR middle-end/102080
* gcc.target/i386/pr102080.c: New test.
---
gcc/internal-fn.c | 19 +++++++++++++++++++
gcc/internal-fn.h | 1 +
gcc/match.pd | 24 ++++++++++++++++--------
gcc/testsuite/gcc.target/i386/pr102080.c | 19 +++++++++++++++++++
4 files changed, 55 insertions(+), 8 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/i386/pr102080.c
diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c
index 1360a00f0b9..371d0d8b186 100644
--- a/gcc/internal-fn.c
+++ b/gcc/internal-fn.c
@@ -4102,6 +4102,25 @@ expand_internal_call (gcall *stmt)
expand_internal_call (gimple_call_internal_fn (stmt), stmt);
}
+/* Return true if target support cond_op with data TYPE and
+ mask MASK_TYPE. */
+bool
+cond_internal_fn_supported_p (internal_fn ifn, tree type,
+ tree mask_type)
+{
+ tree_pair types = tree_pair (type, type);
+ optab tmp = direct_internal_fn_optab (ifn, types);
+ machine_mode vmode = TYPE_MODE (type);
+ insn_code icode = direct_optab_handler (tmp, vmode);
+ if (icode == CODE_FOR_nothing)
+ return false;
+
+ machine_mode mask_mode = TYPE_MODE (mask_type);
+ /* Can't create rtx and use insn_operand_matches here. */
+ return insn_data[icode].operand[0].mode == vmode
+ && insn_data[icode].operand[1].mode == mask_mode;
+}
+
/* If TYPE is a vector type, return true if IFN is a direct internal
function that is supported for that type. If TYPE is a scalar type,
return true if IFN is a direct internal function that is supported for
diff --git a/gcc/internal-fn.h b/gcc/internal-fn.h
index 19d0f849a5a..c78d238cf08 100644
--- a/gcc/internal-fn.h
+++ b/gcc/internal-fn.h
@@ -236,5 +236,6 @@ extern void expand_PHI (internal_fn, gcall *);
extern void expand_SHUFFLEVECTOR (internal_fn, gcall *);
extern bool vectorized_internal_fn_supported_p (internal_fn, tree);
+extern bool cond_internal_fn_supported_p (internal_fn, tree, tree);
#endif
diff --git a/gcc/match.pd b/gcc/match.pd
index f421c74b62c..560e8f65a9b 100644
--- a/gcc/match.pd
+++ b/gcc/match.pd
@@ -6986,14 +6986,18 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
cond_op (COND_BINARY)
(simplify
(vec_cond @0 (view_convert? (uncond_op@4 @1 @2)) @3)
- (with { tree op_type = TREE_TYPE (@4); }
- (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type)
+ (with { tree op_type = TREE_TYPE (@4);
+ tree mask_type = TREE_TYPE (@0); }
+ (if (cond_internal_fn_supported_p (as_internal_fn (cond_op),
+ op_type, mask_type)
&& element_precision (type) == element_precision (op_type))
(view_convert (cond_op @0 @1 @2 (view_convert:op_type @3))))))
(simplify
(vec_cond @0 @1 (view_convert? (uncond_op@4 @2 @3)))
- (with { tree op_type = TREE_TYPE (@4); }
- (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type)
+ (with { tree op_type = TREE_TYPE (@4);
+ tree mask_type = TREE_TYPE (@0); }
+ (if (cond_internal_fn_supported_p (as_internal_fn (cond_op),
+ op_type, mask_type)
&& element_precision (type) == element_precision (op_type))
(view_convert (cond_op (bit_not @0) @2 @3 (view_convert:op_type @1)))))))
@@ -7002,14 +7006,18 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
cond_op (COND_TERNARY)
(simplify
(vec_cond @0 (view_convert? (uncond_op@5 @1 @2 @3)) @4)
- (with { tree op_type = TREE_TYPE (@5); }
- (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type)
+ (with { tree op_type = TREE_TYPE (@5);
+ tree mask_type = TREE_TYPE (@0); }
+ (if (cond_internal_fn_supported_p (as_internal_fn (cond_op),
+ op_type, mask_type)
&& element_precision (type) == element_precision (op_type))
(view_convert (cond_op @0 @1 @2 @3 (view_convert:op_type @4))))))
(simplify
(vec_cond @0 @1 (view_convert? (uncond_op@5 @2 @3 @4)))
- (with { tree op_type = TREE_TYPE (@5); }
- (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type)
+ (with { tree op_type = TREE_TYPE (@5);
+ tree mask_type = TREE_TYPE (@0); }
+ (if (cond_internal_fn_supported_p (as_internal_fn (cond_op),
+ op_type, mask_type)
&& element_precision (type) == element_precision (op_type))
(view_convert (cond_op (bit_not @0) @2 @3 @4
(view_convert:op_type @1)))))))
diff --git a/gcc/testsuite/gcc.target/i386/pr102080.c b/gcc/testsuite/gcc.target/i386/pr102080.c
new file mode 100644
index 00000000000..4c5ee32ee63
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr102080.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#include<immintrin.h>
+typedef float __m256 __attribute__((__vector_size__(32)));
+__m256 _mm256_blendv_ps___Y, _mm256_blendv_ps___M, _mm256_mul_ps___A,
+ _mm256_mul_ps___B, IfThenElse___trans_tmp_9;
+
+void
+__attribute__ ((target("avx")))
+IfThenElse (__m256 no) {
+ IfThenElse___trans_tmp_9 = _mm256_blendv_ps (no, _mm256_blendv_ps___Y, _mm256_blendv_ps___M);
+}
+void
+__attribute__ ((target("avx512vl")))
+EncodedFromDisplay() {
+ __m256 __trans_tmp_11 = _mm256_mul_ps___A * _mm256_mul_ps___B;
+ IfThenElse(__trans_tmp_11);
+}
--
2.18.1
