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Re: [PATCH, testsuite, i386] AVX2 support for GCC

On Tue, Aug 9, 2011 at 2:42 PM, Kirill Yukhin <kirill.yukhin@gmail.com> wrote:

> Here is second stage patch.
> It introduces AVX2 option, define etc.
>
> ChangeLog entry:
>
> 2011-08-09 ?Kirill Yukhin ?<kirill.yukhin@intel.com>
>
> ? ? ? ?* common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX2_SET): New.
> ? ? ? ?(OPTION_MASK_ISA_FMA_UNSET): Update.

Where?

> ? ? ? ?(OPTION_MASK_ISA_AVX2_UNSET): New.
> ? ? ? ?(ix86_handle_option): Handle OPT_mavx2 case.
> ? ? ? ?* config/i386/cpuid.h (bit_AVX2): New.
> ? ? ? ?* config/i386/driver-i386.c (host_detect_local_cpu): Detect
> ? ? ? ?AVX2 feature.
> ? ? ? ?* config/i386/i386-c.c (ix86_target_macros_internal): Define
> ? ? ? ?__AVX2_ if needed.

Conditionally define __AVX2__.

> ? ? ? ?* config/i386/i386.c (ix86_option_override_internal): Handle
> ? ? ? ?AVX2 option, define new processor alias - "core-avx2".

Define PTA_AVX2.  Define "core-avx2" processor alias.  Handle avx2 option.

> ? ? ? ?(ix86_valid_target_attribute_inner_p): Likewise.

Handle avx2 option.

> ? ? ? ?* config/i386/i386.h (TARGET_AVX2): New.
> ? ? ? ?* config/i386/i386.opt (mavx2): New.
> ? ? ? ?* doc/invoke.texi: Document -mavx2.


diff --git a/gcc/common/config/i386/i386-common.c
b/gcc/common/config/i386/i386-common.c
index 1fd33bd..1e0ca5e 100644
--- a/gcc/common/config/i386/i386-common.c
+++ b/gcc/common/config/i386/i386-common.c
@@ -52,6 +52,8 @@ along with GCC; see the file COPYING3.  If not see
   (OPTION_MASK_ISA_AVX | OPTION_MASK_ISA_SSE4_2_SET)
 #define OPTION_MASK_ISA_FMA_SET \
   (OPTION_MASK_ISA_FMA | OPTION_MASK_ISA_AVX_SET)
+#define OPTION_MASK_ISA_AVX2_SET \
+  (OPTION_MASK_ISA_AVX2 | OPTION_MASK_ISA_AVX_SET)

 /* SSE4 includes both SSE4.1 and SSE4.2. -msse4 should be the same
    as -msse4.2.  */
@@ -114,8 +116,10 @@ along with GCC; see the file COPYING3.  If not see
   (OPTION_MASK_ISA_SSE4_2 | OPTION_MASK_ISA_AVX_UNSET )
 #define OPTION_MASK_ISA_AVX_UNSET \
   (OPTION_MASK_ISA_AVX | OPTION_MASK_ISA_FMA_UNSET \
-   | OPTION_MASK_ISA_FMA4_UNSET | OPTION_MASK_ISA_F16C_UNSET)
+   | OPTION_MASK_ISA_FMA4_UNSET | OPTION_MASK_ISA_F16C_UNSET \
+   | OPTION_MASK_ISA_AVX)

OPTION_MASK_ISA_AVX2

> Is it OK for trunk, after int64 is comitted?

OK with the change above.

Thanks,
Uros.
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