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i386-cpuinfo.c (FEATURE_AVX2): New enum value.

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2012-04-25  Sriraman Tallam  <tmsriram@google.com>

	* config/i386/i386-cpuinfo.c (FEATURE_AVX2): New enum value.
	(get_available_features): New argument. Check for AVX2.
	(__cpu_indicator_init): Modify call to get_available_features.

	* doc/extend.texi: Document avx2 support.
	* config/i386/i386.c (fold_builtin_cpu): Add avx2.

	* testsuite/gcc.target/i386/builtin_target.c: Check avx2.

From-SVN: r186855
This commit is contained in:
Sriraman Tallam 2012-04-26 00:52:09 +00:00 • committed by Sriraman Tallam
parent c2ad8e1c40
commit 5ddecff9f2
7 changed files with 39 additions and 5 deletions
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5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2012-04-25 Sriraman Tallam <tmsriram@google.com>
* doc/extend.texi: Document avx2 support.
* config/i386/i386.c (fold_builtin_cpu): Add avx2.
2012-04-26 Hans-Peter Nilsson <hp@axis.com>
PR target/53120

4
gcc/config/i386/i386.c
View file

@ -27763,6 +27763,7 @@ fold_builtin_cpu (tree fndecl, tree *args)
F_SSE4_1,
F_SSE4_2,
F_AVX,
F_AVX2,
F_MAX
};
@ -27830,7 +27831,8 @@ fold_builtin_cpu (tree fndecl, tree *args)
{"ssse3", F_SSSE3},
{"sse4.1", F_SSE4_1},
{"sse4.2", F_SSE4_2},
{"avx", F_AVX}
{"avx", F_AVX},
{"avx2", F_AVX2}
};
static tree __processor_model_type = NULL_TREE;

2
gcc/doc/extend.texi
View file

@ -9541,6 +9541,8 @@ SSE4.1 instructions.
SSE4.2 instructions.
@item avx
AVX instructions.
@item avx2
AVX2 instructions.
@end table
Here is an example:

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2012-04-25 Sriraman Tallam <tmsriram@google.com>
* testsuite/gcc.target/i386/builtin_target.c: Check avx2.
2012-04-26 Alan Modra <amodra@gmail.com>
* gcc.target/powerpc/savres.c: New test.

2
gcc/testsuite/gcc.target/i386/builtin_target.c
View file

@ -29,6 +29,8 @@ fn1 ()
assert (__builtin_cpu_supports ("avx") >= 0);
assert (__builtin_cpu_supports ("avx2") >= 0);
/* Check CPU type. */
assert (__builtin_cpu_is ("amd") >= 0);

6
libgcc/ChangeLog
View file

@ -1,3 +1,9 @@
2012-04-25 Sriraman Tallam <tmsriram@google.com>
* config/i386/i386-cpuinfo.c (FEATURE_AVX2): New enum value.
(get_available_features): New argument. Check for AVX2.
(__cpu_indicator_init): Modify call to get_available_features.
2012-04-25 Alan Modra <amodra@gmail.com>
* config/rs6000/crtsavevr.S: New file.

21
libgcc/config/i386/i386-cpuinfo.c
View file

@ -75,7 +75,8 @@ enum processor_features
FEATURE_SSSE3,
FEATURE_SSE4_1,
FEATURE_SSE4_2,
FEATURE_AVX
FEATURE_AVX,
FEATURE_AVX2
};
struct __processor_model
@ -191,8 +192,11 @@ get_intel_cpu (unsigned int family, unsigned int model, unsigned int brand_id)
}
}
/* ECX and EDX are output of CPUID at level one. MAX_CPUID_LEVEL is
the max possible level of CPUID insn. */
static void
get_available_features (unsigned int ecx, unsigned int edx)
get_available_features (unsigned int ecx, unsigned int edx,
int max_cpuid_level)
{
unsigned int features = 0;
@ -217,6 +221,15 @@ get_available_features (unsigned int ecx, unsigned int edx)
if (ecx & bit_AVX)
features |= (1 << FEATURE_AVX);
/* Get Advanced Features at level 7 (eax = 7, ecx = 0). */
if (max_cpuid_level >= 7)
{
unsigned int eax, ebx, ecx, edx;
__cpuid_count (7, 0, eax, ebx, ecx, edx);
if (ebx & bit_AVX2)
features |= (1 << FEATURE_AVX2);
}
__cpu_model.__cpu_features[0] = features;
}
@ -296,7 +309,7 @@ __cpu_indicator_init (void)
/* Get CPU type. */
get_intel_cpu (family, model, brand_id);
/* Find available features. */
get_available_features (ecx, edx);
get_available_features (ecx, edx, max_level);
__cpu_model.__cpu_vendor = VENDOR_INTEL;
}
else if (vendor == SIG_AMD)
@ -311,7 +324,7 @@ __cpu_indicator_init (void)
/* Get CPU type. */
get_amd_cpu (family, model);
/* Find available features. */
get_available_features (ecx, edx);
get_available_features (ecx, edx, max_level);
__cpu_model.__cpu_vendor = VENDOR_AMD;
}
else