* [PATCH] x86: Add FEATURE_AVX512VP2INTERSECT and update GFNI check
@ 2020-05-19 21:37 H.J. Lu
2020-05-19 21:38 ` Uros Bizjak
0 siblings, 1 reply; 2+ messages in thread
From: H.J. Lu @ 2020-05-19 21:37 UTC (permalink / raw)
To: gcc-patches; +Cc: Uros Bizjak
Add FEATURE_AVX512VP2INTERSECT to libgcc so that enum processor_features
in libgcc matches enum processor_features in i386-builtins.c. Update
GFNI check to support processors with SSE and AVX versions of GFNI.
PR target/95212
PR target/95220
* config/i386/cpuinfo.c (get_available_features): Fix
FEATURE_GFNI check. Also check FEATURE_AVX512VP2INTERSECT.
* config/i386/cpuinfo.h (processor_features): Add
FEATURE_AVX512VP2INTERSECT.
---
libgcc/config/i386/cpuinfo.c | 6 ++++--
libgcc/config/i386/cpuinfo.h | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
index 00322c58622..26c1bdca361 100644
--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
@@ -349,6 +349,8 @@ get_available_features (unsigned int ecx, unsigned int edx,
}
if (ebx & bit_BMI2)
set_feature (FEATURE_BMI2);
+ if (ecx & bit_GFNI)
+ set_feature (FEATURE_GFNI);
if (avx512_usable)
{
if (ebx & bit_AVX512F)
@@ -371,8 +373,6 @@ get_available_features (unsigned int ecx, unsigned int edx,
set_feature (FEATURE_AVX512VBMI);
if (ecx & bit_AVX512VBMI2)
set_feature (FEATURE_AVX512VBMI2);
- if (ecx & bit_GFNI)
- set_feature (FEATURE_GFNI);
if (ecx & bit_VPCLMULQDQ)
set_feature (FEATURE_VPCLMULQDQ);
if (ecx & bit_AVX512VNNI)
@@ -385,6 +385,8 @@ get_available_features (unsigned int ecx, unsigned int edx,
set_feature (FEATURE_AVX5124VNNIW);
if (edx & bit_AVX5124FMAPS)
set_feature (FEATURE_AVX5124FMAPS);
+ if (edx & bit_AVX512VP2INTERSECT)
+ set_feature (FEATURE_AVX512VP2INTERSECT);
__cpuid_count (7, 1, eax, ebx, ecx, edx);
if (eax & bit_AVX512BF16)
diff --git a/libgcc/config/i386/cpuinfo.h b/libgcc/config/i386/cpuinfo.h
index 41c4a49a98d..fd6d12a7d68 100644
--- a/libgcc/config/i386/cpuinfo.h
+++ b/libgcc/config/i386/cpuinfo.h
@@ -122,6 +122,7 @@ enum processor_features
FEATURE_VPCLMULQDQ,
FEATURE_AVX512VNNI,
FEATURE_AVX512BITALG,
+ FEATURE_AVX512VP2INTERSECT,
FEATURE_AVX512BF16
};
--
2.26.2
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] x86: Add FEATURE_AVX512VP2INTERSECT and update GFNI check
2020-05-19 21:37 [PATCH] x86: Add FEATURE_AVX512VP2INTERSECT and update GFNI check H.J. Lu
@ 2020-05-19 21:38 ` Uros Bizjak
0 siblings, 0 replies; 2+ messages in thread
From: Uros Bizjak @ 2020-05-19 21:38 UTC (permalink / raw)
To: H.J. Lu; +Cc: gcc-patches
On Tue, May 19, 2020 at 11:37 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> Add FEATURE_AVX512VP2INTERSECT to libgcc so that enum processor_features
> in libgcc matches enum processor_features in i386-builtins.c. Update
> GFNI check to support processors with SSE and AVX versions of GFNI.
>
> PR target/95212
> PR target/95220
> * config/i386/cpuinfo.c (get_available_features): Fix
> FEATURE_GFNI check. Also check FEATURE_AVX512VP2INTERSECT.
> * config/i386/cpuinfo.h (processor_features): Add
> FEATURE_AVX512VP2INTERSECT.
OK for mainline and backports.
Thanks,
Uros.
> ---
> libgcc/config/i386/cpuinfo.c | 6 ++++--
> libgcc/config/i386/cpuinfo.h | 1 +
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
> index 00322c58622..26c1bdca361 100644
> --- a/libgcc/config/i386/cpuinfo.c
> +++ b/libgcc/config/i386/cpuinfo.c
> @@ -349,6 +349,8 @@ get_available_features (unsigned int ecx, unsigned int edx,
> }
> if (ebx & bit_BMI2)
> set_feature (FEATURE_BMI2);
> + if (ecx & bit_GFNI)
> + set_feature (FEATURE_GFNI);
> if (avx512_usable)
> {
> if (ebx & bit_AVX512F)
> @@ -371,8 +373,6 @@ get_available_features (unsigned int ecx, unsigned int edx,
> set_feature (FEATURE_AVX512VBMI);
> if (ecx & bit_AVX512VBMI2)
> set_feature (FEATURE_AVX512VBMI2);
> - if (ecx & bit_GFNI)
> - set_feature (FEATURE_GFNI);
> if (ecx & bit_VPCLMULQDQ)
> set_feature (FEATURE_VPCLMULQDQ);
> if (ecx & bit_AVX512VNNI)
> @@ -385,6 +385,8 @@ get_available_features (unsigned int ecx, unsigned int edx,
> set_feature (FEATURE_AVX5124VNNIW);
> if (edx & bit_AVX5124FMAPS)
> set_feature (FEATURE_AVX5124FMAPS);
> + if (edx & bit_AVX512VP2INTERSECT)
> + set_feature (FEATURE_AVX512VP2INTERSECT);
>
> __cpuid_count (7, 1, eax, ebx, ecx, edx);
> if (eax & bit_AVX512BF16)
> diff --git a/libgcc/config/i386/cpuinfo.h b/libgcc/config/i386/cpuinfo.h
> index 41c4a49a98d..fd6d12a7d68 100644
> --- a/libgcc/config/i386/cpuinfo.h
> +++ b/libgcc/config/i386/cpuinfo.h
> @@ -122,6 +122,7 @@ enum processor_features
> FEATURE_VPCLMULQDQ,
> FEATURE_AVX512VNNI,
> FEATURE_AVX512BITALG,
> + FEATURE_AVX512VP2INTERSECT,
> FEATURE_AVX512BF16
> };
>
> --
> 2.26.2
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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