From: wwwhhhyyy <hongyu.w...@intel.com>
Hi,
For GoldenCove micro-architecture, force insert zero-idiom in asm
template to break false dependency of dest register for several insns.
The related insns are:
VPERM/D/Q/PS/PD
VRANGEPD/PS/SD/SS
VGETMANTSS/SD/SH
VGETMANDPS/PD - mem version only
VPMULLQ
VFMULCSH/PH
VFCMULCSH/PH
Bootstraped/regtested on x86_64-pc-linux-gnu{-m32,}
Ok for master?
gcc/ChangeLog:
* config/i386/i386.h (TARGET_DEST_FALSE_DEPENDENCY): New macro.
* config/i386/i386.md (dest_false_dep): New define_attr.
* config/i386/sse.md
(<avx512>_<complexopname>_<mode><maskc_name><round_name>):
Insert zero-idiom in output template when attr enabled, set new
attribute to
true for non-mask/maskz insn.
(avx512fp16_<complexopname>sh_v8hf<mask_scalarc_name><round_scalarcz_name>):
Likewise.
(avx512dq_mul<mode>3<mask_name>): Likewise.
(<avx2_avx512>_permvar<mode><mask_name>): Likewise.
(avx2_perm<mode>_1<mask_name>): Likewise.
(avx512f_perm<mode>_1<mask_name>): Likewise.
(avx512dq_rangep<mode><mask_name><round_saeonly_name>): Likewise.
(avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>):
Likewise.
(<avx512>_getmant<mode><mask_name><round_saeonly_name>): Likewise.
(avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
Likewise.
* config/i386/subst.md (mask3_dest_false_dep_attr): New subst_attr.
(mask4_dest_false_dep_attr): Likewise.
(mask6_dest_false_dep_attr): Likewise.
(mask10_dest_false_dep_attr): Likewise.
(maskc_dest_false_dep_attr): Likewise.
(mask_scalar4_dest_false_dep_attr): Likewise.
(mask_scalarc_dest_false_dep_attr): Likewise.
* config/i386/x86-tune.def (X86_TUNE_DEST_FALSE_DEPENDENCY): New
DEF_TUNE enabled for m_SAPPHIRERAPIDS and m_ALDERLAKE
gcc/testsuite/ChangeLog:
* gcc.target/i386/avx2-dest-false-dependency.c: New test.
* gcc.target/i386/avx512dq-dest-false-dependency.c: Ditto.
* gcc.target/i386/avx512f-dest-false-dependency.c: Ditto.
* gcc.target/i386/avx512fp16-dest-false-dependency.c: Ditto.
* gcc.target/i386/avx512fp16vl-dest-false-dependency.c: Ditto.
* gcc.target/i386/avx512vl-dest-false-dependency.c: Ditto.
---
gcc/config/i386/i386.h | 2 +
gcc/config/i386/i386.md | 4 +
gcc/config/i386/sse.md | 142 +++++++++++++++---
gcc/config/i386/subst.md | 7 +
gcc/config/i386/x86-tune.def | 5 +
.../i386/avx2-dest-false-dependency.c | 24 +++
.../i386/avx512dq-dest-false-dependency.c | 73 +++++++++
.../i386/avx512f-dest-false-dependency.c | 102 +++++++++++++
.../i386/avx512fp16-dest-false-dependency.c | 45 ++++++
.../i386/avx512fp16vl-dest-false-dependency.c | 24 +++
.../i386/avx512vl-dest-false-dependency.c | 76 ++++++++++
11 files changed, 486 insertions(+), 18 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/i386/avx2-dest-false-dependency.c
create mode 100644
gcc/testsuite/gcc.target/i386/avx512dq-dest-false-dependency.c
create mode 100644
gcc/testsuite/gcc.target/i386/avx512f-dest-false-dependency.c
create mode 100644
gcc/testsuite/gcc.target/i386/avx512fp16-dest-false-dependency.c
create mode 100644
gcc/testsuite/gcc.target/i386/avx512fp16vl-dest-false-dependency.c
create mode 100644
gcc/testsuite/gcc.target/i386/avx512vl-dest-false-dependency.c
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 3ac0f698ae2..ddbf6b9825a 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -429,6 +429,8 @@ extern unsigned char ix86_tune_features[X86_TUNE_LAST];
ix86_tune_features[X86_TUNE_EXPAND_ABS]
#define TARGET_V2DF_REDUCTION_PREFER_HADDPD \
ix86_tune_features[X86_TUNE_V2DF_REDUCTION_PREFER_HADDPD]
+#define TARGET_DEST_FALSE_DEPENDENCY \
+ ix86_tune_features[X86_TUNE_DEST_FALSE_DEPENDENCY]
/* Feature tests against the various architecture variations. */
enum ix86_arch_indices {
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 9937643a273..40a2b580740 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -823,6 +823,10 @@ (define_attr "i387_cw"
"roundeven,floor,ceil,trunc,uninitialized,any"
(define_attr "avx_partial_xmm_update" "false,true"
(const_string "false"))
+;; Define attribute to indicate complex mult insn with false dependency
+(define_attr "dest_false_dep" "false,true"
+ (const_string "false"))
+
;; Define attribute to classify add/sub insns that consumes carry flag (CF)
(define_attr "use_carry" "0,1" (const_string "0"))
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 0864748875e..c8dace5b2f8 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -6536,9 +6536,20 @@ (define_insn
"<avx512>_<complexopname>_<mode><maskc_name><round_name>"
(match_operand:VF_AVX512FP16VL 2 "nonimmediate_operand"
"<round_constraint>")]
UNSPEC_COMPLEX_F_C_MUL))]
"TARGET_AVX512FP16 && <round_mode512bit_condition>"
- "v<complexopname><ssemodesuffix>\t{<round_maskc_op3>%2, %1,
%0<maskc_operand3>|%0<maskc_operand3>, %1, %2<round_maskc_op3>}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "v<complexopname><ssemodesuffix>\t{<round_maskc_op3>%2, %1,
%0<maskc_operand3>|%0<maskc_operand3>, %1, %2<round_maskc_op3>}";
+}
[(set_attr "type" "ssemul")
- (set_attr "mode" "<MODE>")])
+ (set_attr "mode" "<MODE>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<maskc_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_expand "avx512fp16_fmaddcsh_v8hf_maskz<round_expand_name>"
[(match_operand:V8HF 0 "register_operand")
@@ -6742,9 +6753,20 @@ (define_insn
"avx512fp16_<complexopname>sh_v8hf<mask_scalarc_name><round_scalarc
(match_dup 1)
(const_int 3)))]
"TARGET_AVX512FP16"
- "v<complexopname>sh\t{<round_scalarc_mask_op3>%2, %1,
%0<mask_scalarc_operand3>|%0<mask_scalarc_operand3>, %1,
%2<round_scalarc_mask_op3>}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "v<complexopname>sh\t{<round_scalarc_mask_op3>%2, %1,
%0<mask_scalarc_operand3>|%0<mask_scalarc_operand3>, %1,
%2<round_scalarc_mask_op3>}";
+}
[(set_attr "type" "ssemul")
- (set_attr "mode" "V8HF")])
+ (set_attr "mode" "V8HF")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask_scalarc_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
@@ -15207,10 +15229,21 @@ (define_insn "avx512dq_mul<mode>3<mask_name>"
(match_operand:VI8_AVX512VL 2 "bcst_vector_operand" "vmBr")))]
"TARGET_AVX512DQ && <mask_mode512bit_condition>
&& ix86_binary_operator_ok (MULT, <MODE>mode, operands)"
- "vpmullq\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vpmullq\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}";
+}
[(set_attr "type" "sseimul")
(set_attr "prefix" "evex")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "<sseinsnmode>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask3_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_expand "cond_mul<mode>"
[(set (match_operand:VI4_AVX512VL 0 "register_operand")
@@ -24636,10 +24669,21 @@ (define_insn "<avx2_avx512>_permvar<mode><mask_name>"
(match_operand:<sseintvecmode> 2 "register_operand" "v")]
UNSPEC_VPERMVAR))]
"TARGET_AVX2 && <mask_mode512bit_condition>"
- "vperm<ssemodesuffix>\t{%1, %2, %0<mask_operand3>|%0<mask_operand3>, %2, %1}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vperm<ssemodesuffix>\t{%1, %2, %0<mask_operand3>|%0<mask_operand3>,
%2, %1}";
+}
[(set_attr "type" "sselog")
(set_attr "prefix" "<mask_prefix2>")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "<sseinsnmode>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask3_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_insn "<avx512>_permvar<mode><mask_name>"
[(set (match_operand:VI1_AVX512VL 0 "register_operand" "=v")
@@ -24873,11 +24917,20 @@ (define_insn "avx2_perm<mode>_1<mask_name>"
mask |= INTVAL (operands[4]) << 4;
mask |= INTVAL (operands[5]) << 6;
operands[2] = GEN_INT (mask);
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
return "vperm<ssemodesuffix>\t{%2, %1, %0<mask_operand6>|%0<mask_operand6>,
%1, %2}";
}
[(set_attr "type" "sselog")
(set_attr "prefix" "<mask_prefix2>")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "<sseinsnmode>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask6_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_expand "avx512f_perm<mode>"
[(match_operand:V8FI 0 "register_operand")
@@ -24944,11 +24997,20 @@ (define_insn "avx512f_perm<mode>_1<mask_name>"
mask |= INTVAL (operands[4]) << 4;
mask |= INTVAL (operands[5]) << 6;
operands[2] = GEN_INT (mask);
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
return "vperm<ssemodesuffix>\t{%2, %1,
%0<mask_operand10>|%0<mask_operand10>, %1, %2}";
}
[(set_attr "type" "sselog")
(set_attr "prefix" "<mask_prefix2>")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "<sseinsnmode>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask10_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_insn "avx2_permv2ti"
[(set (match_operand:V4DI 0 "register_operand" "=x")
@@ -26843,10 +26905,21 @@ (define_insn
"avx512dq_rangep<mode><mask_name><round_saeonly_name>"
(match_operand:SI 3 "const_0_to_15_operand")]
UNSPEC_RANGE))]
"TARGET_AVX512DQ && <round_saeonly_mode512bit_condition>"
- "vrange<ssemodesuffix>\t{%3, <round_saeonly_mask_op4>%2, %1,
%0<mask_operand4>|%0<mask_operand4>, %1, %2<round_saeonly_mask_op4>, %3}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vrange<ssemodesuffix>\t{%3, <round_saeonly_mask_op4>%2, %1,
%0<mask_operand4>|%0<mask_operand4>, %1, %2<round_saeonly_mask_op4>, %3}";
+}
[(set_attr "type" "sse")
(set_attr "prefix" "evex")
- (set_attr "mode" "<MODE>")])
+ (set_attr "mode" "<MODE>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask4_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_insn
"avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>"
[(set (match_operand:VF_128 0 "register_operand" "=v")
@@ -26859,10 +26932,21 @@ (define_insn
"avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>
(match_dup 1)
(const_int 1)))]
"TARGET_AVX512DQ"
- "vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2, %1,
%0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
%<iptr>2<round_saeonly_scalar_mask_op4>, %3}"
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
%1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
%<iptr>2<round_saeonly_scalar_mask_op4>, %3}";
+}
[(set_attr "type" "sse")
(set_attr "prefix" "evex")
- (set_attr "mode" "<MODE>")])
+ (set_attr "mode" "<MODE>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask_scalar4_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_insn "avx512dq_fpclass<mode><mask_scalar_merge_name>"
[(set (match_operand:<avx512fmaskmode> 0 "register_operand" "=k")
@@ -26899,9 +26983,20 @@ (define_insn
"<avx512>_getmant<mode><mask_name><round_saeonly_name>"
(match_operand:SI 2 "const_0_to_15_operand")]
UNSPEC_GETMANT))]
"TARGET_AVX512F"
- "vgetmant<ssemodesuffix>\t{%2, <round_saeonly_mask_op3>%1,
%0<mask_operand3>|%0<mask_operand3>, %1<round_saeonly_mask_op3>, %2}";
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vgetmant<ssemodesuffix>\t{%2, <round_saeonly_mask_op3>%1,
%0<mask_operand3>|%0<mask_operand3>, %1<round_saeonly_mask_op3>, %2}";
+}
[(set_attr "prefix" "evex")
- (set_attr "mode" "<MODE>")])
+ (set_attr "mode" "<MODE>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "!MEM_P (operands[1]) || <mask3_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
(define_insn
"avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>"
[(set (match_operand:VFH_128 0 "register_operand" "=v")
@@ -26914,9 +27009,20 @@ (define_insn
"avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name
(match_dup 1)
(const_int 1)))]
"TARGET_AVX512F"
- "vgetmant<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2, %1,
%0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
%<iptr>2<round_saeonly_scalar_mask_op4>, %3}";
+{
+ if (TARGET_DEST_FALSE_DEPENDENCY
+ && get_attr_dest_false_dep (insn) ==
+ DEST_FALSE_DEP_TRUE)
+ output_asm_insn ("vxorps\t{%x0, %x0, %x0}", operands);
+ return "vgetmant<ssescalarmodesuffix>\t{%3,
<round_saeonly_scalar_mask_op4>%2, %1,
%0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
%<iptr>2<round_saeonly_scalar_mask_op4>, %3}";
+}
[(set_attr "prefix" "evex")
- (set_attr "mode" "<ssescalarmode>")])
+ (set_attr "mode" "<ssescalarmode>")
+ (set (attr "dest_false_dep")
+ (if_then_else
+ (match_test "<mask_scalar4_dest_false_dep_attr>")
+ (const_string "false")
+ (const_string "true")))])
;; The correct representation for this is absolutely enormous, and
;; surely not generally useful.
diff --git a/gcc/config/i386/subst.md b/gcc/config/i386/subst.md
index 21d445cc46c..802a8715b01 100644
--- a/gcc/config/i386/subst.md
+++ b/gcc/config/i386/subst.md
@@ -71,6 +71,11 @@ (define_subst_attr "bcst_mask_prefix3" "mask"
"orig,maybe_evex" "evex,evex")
(define_subst_attr "mask_prefix4" "mask" "orig,orig,vex" "evex,evex,evex")
(define_subst_attr "bcst_mask_prefix4" "mask" "orig,orig,maybe_evex"
"evex,evex,evex")
(define_subst_attr "mask_expand_op3" "mask" "3" "5")
+(define_subst_attr "mask3_dest_false_dep_attr" "mask" "0" "operands[3] !=
CONST0_RTX(<MODE>mode)")
+(define_subst_attr "mask4_dest_false_dep_attr" "mask" "0" "operands[4] !=
CONST0_RTX(<MODE>mode)")
+(define_subst_attr "mask6_dest_false_dep_attr" "mask" "0" "operands[6] !=
CONST0_RTX(<MODE>mode)")
+(define_subst_attr "mask10_dest_false_dep_attr" "mask" "0" "operands[10] !=
CONST0_RTX(<MODE>mode)")
+(define_subst_attr "maskc_dest_false_dep_attr" "maskc" "0" "operands[3] !=
CONST0_RTX(<MODE>mode)")
(define_subst "mask"
[(set (match_operand:SUBST_V 0)
@@ -337,6 +342,8 @@ (define_subst_attr "mask_scalarc_operand3" "mask_scalarc"
"" "%{%4%}%N3")
(define_subst_attr "mask_scalar_operand3" "mask_scalar" "" "%{%4%}%N3")
(define_subst_attr "mask_scalar_operand4" "mask_scalar" "" "%{%5%}%N4")
(define_subst_attr "mask_scalarcz_operand4" "mask_scalarcz" "" "%{%5%}%N4")
+(define_subst_attr "mask_scalar4_dest_false_dep_attr" "mask_scalar" "0"
"operands[4] != CONST0_RTX(<MODE>mode)")
+(define_subst_attr "mask_scalarc_dest_false_dep_attr" "mask_scalarc" "0"
"operands[3] != CONST0_RTX(V8HFmode)")
(define_subst "mask_scalar"
[(set (match_operand:SUBST_V 0)
diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def
index 0d3fd078068..1b42c96fc38 100644
--- a/gcc/config/i386/x86-tune.def
+++ b/gcc/config/i386/x86-tune.def
@@ -79,6 +79,11 @@ DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY,
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
| m_BDVER | m_ZNVER | m_ALDERLAKE | m_GENERIC)
+/* X86_TUNE_DEST_FALSE_DEPENDENCY: This knob inserts zero-idiom before
+ several insns to break false dependency on the dest register. */
+DEF_TUNE (X86_TUNE_DEST_FALSE_DEPENDENCY,
+ "dest_false_dependency", m_SAPPHIRERAPIDS | m_ALDERLAKE)
+
/* X86_TUNE_SSE_SPLIT_REGS: Set for machines where the type and dependencies
are resolved on SSE register parts instead of whole registers, so we may
maintain just lower part of scalar values in proper format leaving the
diff --git a/gcc/testsuite/gcc.target/i386/avx2-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx2-dest-false-dependency.c
new file mode 100644
index 00000000000..e138920ce18
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx2-dest-false-dependency.c
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx2 -mtune-ctrl=dest_false_dependency -O2" } */
+
+
+#include <immintrin.h>
+
+extern __m256i i1, i2, i3, i4;
+extern __m256d d1, d2;
+extern __m256 f1, f2;
+
+void vperm_test (void)
+{
+ i3 = _mm256_permutevar8x32_epi32 (i1, i2);
+ i4 = _mm256_permute4x64_epi64 (i1, 12);
+ d2 = _mm256_permute4x64_pd (d1, 12);
+ f2 = _mm256_permutevar8x32_ps (f1, i2);
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 4 } } */
+/* { dg-final { scan-assembler-times "vpermd" 1 } } */
+/* { dg-final { scan-assembler-times "vpermq" 1 } } */
+/* { dg-final { scan-assembler-times "vpermpd" 1 } } */
+/* { dg-final { scan-assembler-times "vpermps" 1 } } */
+
diff --git a/gcc/testsuite/gcc.target/i386/avx512dq-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx512dq-dest-false-dependency.c
new file mode 100644
index 00000000000..2feb58f2cd8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512dq-dest-false-dependency.c
@@ -0,0 +1,73 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512dq -mavx512vl -mtune-ctrl=dest_false_dependency -O2"
} */
+
+#include <immintrin.h>
+
+extern __m512i i1;
+extern __m256i i2;
+extern __m128i i3;
+extern __m512d d1;
+extern __m256d d2;
+extern __m128d d3;
+extern __m512 f1;
+extern __m256 f2;
+extern __m128 f3;
+
+__mmask32 m32;
+__mmask16 m16;
+__mmask8 m8;
+
+void mullo_test (void)
+{
+ i1 = _mm512_mullo_epi64 (i1, i1);
+ i1 = _mm512_mask_mullo_epi64 (i1, m8, i1, i1);
+ i1 = _mm512_maskz_mullo_epi64 (m8, i1, i1);
+ i2 = _mm256_mullo_epi64 (i2, i2);
+ i2 = _mm256_mask_mullo_epi64 (i2, m8, i2, i2);
+ i2 = _mm256_maskz_mullo_epi64 (m8, i2, i2);
+ i3 = _mm_mullo_epi64 (i3, i3);
+ i3 = _mm_mask_mullo_epi64 (i3, m8, i3, i3);
+ i3 = _mm_maskz_mullo_epi64 (m8, i3, i3);
+}
+
+void range_test (void)
+{
+ d1 = _mm512_range_pd (d1, d1, 15);
+ d1 = _mm512_range_round_pd (d1, d1, 15, 8);
+ d1 = _mm512_mask_range_pd (d1, m8, d1, d1, 15);
+ d1 = _mm512_mask_range_round_pd (d1, m8, d1, d1, 15, 8);
+ d1 = _mm512_maskz_range_pd (m8, d1, d1, 15);
+ d1 = _mm512_maskz_range_round_pd (m8, d1, d1, 15, 8);
+ d2 = _mm256_range_pd (d2, d2, 15);
+ d2 = _mm256_mask_range_pd (d2, m8, d2, d2, 15);
+ d2 = _mm256_maskz_range_pd (m8, d2, d2, 15);
+ d3 = _mm_range_pd (d3, d3, 15);
+ d3 = _mm_mask_range_pd (d3, m8, d3, d3, 15);
+ d3 = _mm_maskz_range_pd (m8, d3, d3, 15);
+ d3 = _mm_range_sd (d3, d3, 15);
+ d3 = _mm_mask_range_sd (d3, m8, d3, d3, 15);
+ d3 = _mm_maskz_range_sd (m8, d3, d3, 15);
+
+ f1 = _mm512_range_ps (f1, f1, 15);
+ f1 = _mm512_range_round_ps (f1, f1, 15, 8);
+ f1 = _mm512_mask_range_ps (f1, m16, f1, f1, 15);
+ f1 = _mm512_mask_range_round_ps (f1, m16, f1, f1, 15, 8);
+ f1 = _mm512_maskz_range_ps (m16, f1, f1, 15);
+ f1 = _mm512_maskz_range_round_ps (m16, f1, f1, 15, 8);
+ f2 = _mm256_range_ps (f2, f2, 15);
+ f2 = _mm256_mask_range_ps (f2, m8, f2, f2, 15);
+ f2 = _mm256_maskz_range_ps (m8, f2, f2, 15);
+ f3 = _mm_range_ps (f3, f3, 15);
+ f3 = _mm_mask_range_ps (f3, m8, f3, f3, 15);
+ f3 = _mm_maskz_range_ps (m8, f3, f3, 15);
+ f3 = _mm_range_ss (f3, f3, 15);
+ f3 = _mm_mask_range_ss (f3, m8, f3, f3, 15);
+ f3 = _mm_maskz_range_ss (m8, f3, f3, 15);
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 26 } } */
+/* { dg-final { scan-assembler-times "vpmullq" 9 } } */
+/* { dg-final { scan-assembler-times "vrangepd" 12 } } */
+/* { dg-final { scan-assembler-times "vrangesd" 3 } } */
+/* { dg-final { scan-assembler-times "vrangeps" 12 } } */
+/* { dg-final { scan-assembler-times "vrangess" 3 } } */
diff --git a/gcc/testsuite/gcc.target/i386/avx512f-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx512f-dest-false-dependency.c
new file mode 100644
index 00000000000..9650839970e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512f-dest-false-dependency.c
@@ -0,0 +1,102 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -mtune-ctrl=dest_false_dependency -O2" } */
+
+#include <immintrin.h>
+
+extern __m512i i1;
+extern __m512d d1, *pd1;
+extern __m128d d2;
+extern __m512 f1, *pf1;
+extern __m128 f2;
+
+__mmask16 m16;
+__mmask8 m8;
+
+void vperm_test (void)
+{
+ d1 = _mm512_permutex_pd (d1, 12);
+ d1 = _mm512_mask_permutex_pd (d1, m8, d1, 12);
+ d1 = _mm512_maskz_permutex_pd (m8, d1, 12);
+ d1 = _mm512_permutexvar_pd (i1, d1);
+ d1 = _mm512_mask_permutexvar_pd (d1, m8, i1, d1);
+ d1 = _mm512_maskz_permutexvar_pd (m8, i1, d1);
+
+ f1 = _mm512_permutexvar_ps (i1, f1);
+ f1 = _mm512_mask_permutexvar_ps (f1, m16, i1, f1);
+ f1 = _mm512_maskz_permutexvar_ps (m16, i1, f1);
+
+ i1 = _mm512_permutexvar_epi64 (i1, i1);
+ i1 = _mm512_mask_permutexvar_epi64 (i1, m8, i1, i1);
+ i1 = _mm512_maskz_permutexvar_epi64 (m8, i1, i1);
+ i1 = _mm512_permutex_epi64 (i1, 12);
+ i1 = _mm512_mask_permutex_epi64 (i1, m8, i1, 12);
+ i1 = _mm512_maskz_permutex_epi64 (m8, i1, 12);
+
+ i1 = _mm512_permutexvar_epi32 (i1, i1);
+ i1 = _mm512_mask_permutexvar_epi32 (i1, m16, i1, i1);
+ i1 = _mm512_maskz_permutexvar_epi32 (m16, i1, i1);
+}
+
+void getmant_test (void)
+{
+ d1 = _mm512_getmant_pd (*pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d1 = _mm512_getmant_round_pd (*pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ d1 = _mm512_mask_getmant_pd (d1, m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d1 = _mm512_mask_getmant_round_pd (d1, m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ d1 = _mm512_maskz_getmant_pd (m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d1 = _mm512_maskz_getmant_round_pd (m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f1 = _mm512_getmant_ps (*pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm512_getmant_round_ps (*pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f1 = _mm512_mask_getmant_ps (f1, m16, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm512_mask_getmant_round_ps (f1, m16, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f1 = _mm512_maskz_getmant_ps (m16, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm512_maskz_getmant_round_ps (m16, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+
+ d2 = _mm_getmant_sd (d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_getmant_round_sd (d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ d2 = _mm_mask_getmant_sd (d2, m8, d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_mask_getmant_round_sd (d2, m8, d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ d2 = _mm_maskz_getmant_sd (m8, d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_maskz_getmant_round_sd (m8, d2, d2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f2 = _mm_getmant_ss (f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_getmant_round_ss (f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f2 = _mm_mask_getmant_ss (f2, m8, f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_mask_getmant_round_ss (f2, m8, f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+ f2 = _mm_maskz_getmant_ss (m8, f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_maskz_getmant_round_ss (m8, f2, f2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src, 8);
+
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 24 } } */
+/* { dg-final { scan-assembler-times "vpermd" 3 } } */
+/* { dg-final { scan-assembler-times "vpermq" 6 } } */
+/* { dg-final { scan-assembler-times "vpermps" 3 } } */
+/* { dg-final { scan-assembler-times "vpermpd" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantpd" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantps" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantsd" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantss" 6 } } */
diff --git a/gcc/testsuite/gcc.target/i386/avx512fp16-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx512fp16-dest-false-dependency.c
new file mode 100644
index 00000000000..793bb66201b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512fp16-dest-false-dependency.c
@@ -0,0 +1,45 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512fp16 -mavx512vl -mtune-ctrl=dest_false_dependency
-O2" } */
+
+#include <immintrin.h>
+
+extern __m512h h1;
+extern __m256h h2;
+extern __m128h h3;
+
+__mmask32 m32;
+__mmask16 m16;
+__mmask8 m8;
+
+void complex_mul_test (void)
+{
+ h1 = _mm512_fmul_pch (h1, h1);
+ h1 = _mm512_fmul_round_pch (h1, h1, 8);
+ h1 = _mm512_mask_fmul_pch (h1, m32, h1, h1);
+ h1 = _mm512_mask_fmul_round_pch (h1, m32, h1, h1, 8);
+ h1 = _mm512_maskz_fmul_pch (m32, h1, h1);
+ h1 = _mm512_maskz_fmul_round_pch (m32, h1, h1, 11);
+
+ h3 = _mm_fmul_sch (h3, h3);
+ h3 = _mm_fmul_round_sch (h3, h3, 8);
+ h3 = _mm_mask_fmul_sch (h3, m8, h3, h3);
+ h3 = _mm_mask_fmul_round_sch (h3, m8, h3, h3, 8);
+ h3 = _mm_maskz_fmul_sch (m8, h3, h3);
+ h3 = _mm_maskz_fmul_round_sch (m8, h3, h3, 11);
+}
+
+void vgetmant_test (void)
+{
+ h3 = _mm_getmant_sh (h3, h3, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ h3 = _mm_mask_getmant_sh (h3, m8, h3, h3, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ h3 = _mm_maskz_getmant_sh (m8, h3, h3, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 10 } } */
+/* { dg-final { scan-assembler-times "vfmulcph" 6 } } */
+/* { dg-final { scan-assembler-times "vfmulcsh" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantsh" 3 } } */
+
diff --git a/gcc/testsuite/gcc.target/i386/avx512fp16vl-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx512fp16vl-dest-false-dependency.c
new file mode 100644
index 00000000000..09658905d2d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512fp16vl-dest-false-dependency.c
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512fp16 -mavx512vl -mtune-ctrl=dest_false_dependency
-O2" } */
+
+#include <immintrin.h>
+
+extern __m256h h1;
+extern __m128h h2;
+
+__mmask16 m16;
+__mmask8 m8;
+
+void complex_mul_test (void)
+{
+ h1 = _mm256_fmul_pch (h1, h1);
+ h1 = _mm256_mask_fmul_pch (h1, m16, h1, h1);
+ h1 = _mm256_maskz_fmul_pch (m16, h1, h1);
+ h2 = _mm_fmul_pch (h2, h2);
+ h2 = _mm_mask_fmul_pch (h2, m16, h2, h2);
+ h2 = _mm_maskz_fmul_pch (m16, h2, h2);
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 4 } } */
+/* { dg-final { scan-assembler-times "vfmulcph" 6 } } */
+
diff --git a/gcc/testsuite/gcc.target/i386/avx512vl-dest-false-dependency.c
b/gcc/testsuite/gcc.target/i386/avx512vl-dest-false-dependency.c
new file mode 100644
index 00000000000..92717a99837
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512vl-dest-false-dependency.c
@@ -0,0 +1,76 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -mavx512vl -mtune-ctrl=dest_false_dependency -O2" }
*/
+
+
+#include <immintrin.h>
+
+extern __m256i i1;
+extern __m256d d1, *pd1;
+extern __m128d d2, *pd2;
+extern __m256 f1, *pf1;
+extern __m128 f2, *pf2;
+
+__mmask16 m16;
+__mmask8 m8;
+
+void vperm_test (void)
+{
+ d1 = _mm256_permutex_pd (d1, 12);
+ d1 = _mm256_mask_permutex_pd (d1, m8, d1, 12);
+ d1 = _mm256_maskz_permutex_pd (m8, d1, 12);
+ d1 = _mm256_permutexvar_pd (i1, d1);
+ d1 = _mm256_mask_permutexvar_pd (d1, m8, i1, d1);
+ d1 = _mm256_maskz_permutexvar_pd (m8, i1, d1);
+
+ f1 = _mm256_permutexvar_ps (i1, f1);
+ f1 = _mm256_mask_permutexvar_ps (f1, m8, i1, f1);
+ f1 = _mm256_maskz_permutexvar_ps (m8, i1, f1);
+
+ i1 = _mm256_permutexvar_epi64 (i1, i1);
+ i1 = _mm256_mask_permutexvar_epi64 (i1, m8, i1, i1);
+ i1 = _mm256_maskz_permutexvar_epi64 (m8, i1, i1);
+ i1 = _mm256_permutex_epi64 (i1, 12);
+ i1 = _mm256_mask_permutex_epi64 (i1, m8, i1, 12);
+ i1 = _mm256_maskz_permutex_epi64 (m8, i1, 12);
+
+ i1 = _mm256_permutexvar_epi32 (i1, i1);
+ i1 = _mm256_mask_permutexvar_epi32 (i1, m8, i1, i1);
+ i1 = _mm256_maskz_permutexvar_epi32 (m8, i1, i1);
+}
+
+void getmant_test (void)
+{
+ d1 = _mm256_getmant_pd (*pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d1 = _mm256_mask_getmant_pd (d1, m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d1 = _mm256_maskz_getmant_pd (m8, *pd1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_getmant_pd (*pd2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_mask_getmant_pd (d2, m8, *pd2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ d2 = _mm_maskz_getmant_pd (m8, *pd2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm256_getmant_ps (*pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm256_mask_getmant_ps (f1, m8, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f1 = _mm256_maskz_getmant_ps (m8, *pf1, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_getmant_ps (*pf2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_mask_getmant_ps (f2, m8, *pf2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+ f2 = _mm_maskz_getmant_ps (m8, *pf2, _MM_MANT_NORM_p75_1p5,
+ _MM_MANT_SIGN_src);
+}
+
+/* { dg-final { scan-assembler-times "vxorps" 20 } } */
+/* { dg-final { scan-assembler-times "vpermpd" 6 } } */
+/* { dg-final { scan-assembler-times "vpermps" 3 } } */
+/* { dg-final { scan-assembler-times "vpermq" 6 } } */
+/* { dg-final { scan-assembler-times "vpermd" 3 } } */
+/* { dg-final { scan-assembler-times "vgetmantpd" 6 } } */
+/* { dg-final { scan-assembler-times "vgetmantps" 6 } } */
+
--
2.18.1
