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    • /[pkg-src]/trunk/glibc/patches/glibc-2.16.0-detect-fma.patch

    Contents of /trunk/glibc/patches/glibc-2.16.0-detect-fma.patch

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    Revision 1925 - (show annotations) (download)
    Sun Oct 28 19:05:24 2012 UTC (11 years, 6 months ago) by niro
    File size: 3127 byte(s) 
    -more glibc-2.16 fixes
    1 diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c
    2 index fb44dcf..fed5ab8 100644
    3 --- a/sysdeps/x86_64/multiarch/init-arch.c
    4 +++ b/sysdeps/x86_64/multiarch/init-arch.c
    5 @@ -156,6 +156,9 @@ __init_cpu_features (void)
    6 /* Determine if AVX is usable. */
    7 if (CPUID_AVX)
    8 __cpu_features.feature[index_AVX_Usable] |= bit_AVX_Usable;
    9 + /* Determine if FMA is usable. */
    10 + if (CPUID_FMA)
    11 + __cpu_features.feature[index_FMA_Usable] |= bit_FMA_Usable;
    12 /* Determine if FMA4 is usable. */
    13 if (CPUID_FMA4)
    14 __cpu_features.feature[index_FMA4_Usable] |= bit_FMA4_Usable;
    15 diff --git a/sysdeps/x86_64/multiarch/init-arch.h b/sysdeps/x86_64/multiarch/init-arch.h
    16 index 45e2651..f33f1c8 100644
    17 --- a/sysdeps/x86_64/multiarch/init-arch.h
    18 +++ b/sysdeps/x86_64/multiarch/init-arch.h
    19 @@ -22,7 +22,8 @@
    20 #define bit_Fast_Unaligned_Load (1 << 4)
    21 #define bit_Prefer_PMINUB_for_stringop (1 << 5)
    22 #define bit_AVX_Usable (1 << 6)
    23 -#define bit_FMA4_Usable (1 << 7)
    24 +#define bit_FMA_Usable (1 << 7)
    25 +#define bit_FMA4_Usable (1 << 8)
    26
    27 /* CPUID Feature flags. */
    28 #define bit_SSE2 (1 << 26)
    29 @@ -56,6 +57,7 @@
    30 # define index_Fast_Unaligned_Load FEATURE_INDEX_1*FEATURE_SIZE
    31 # define index_Prefer_PMINUB_for_stringop FEATURE_INDEX_1*FEATURE_SIZE
    32 # define index_AVX_Usable FEATURE_INDEX_1*FEATURE_SIZE
    33 +# define index_FMA_Usable FEATURE_INDEX_1*FEATURE_SIZE
    34 # define index_FMA4_Usable FEATURE_INDEX_1*FEATURE_SIZE
    35
    36 #else /* __ASSEMBLER__ */
    37 @@ -131,6 +133,8 @@ extern const struct cpu_features *__get_cpu_features (void)
    38 HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_OSXSAVE)
    39 # define CPUID_AVX \
    40 HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_AVX)
    41 +# define CPUID_FMA \
    42 + HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_FMA)
    43 # define CPUID_FMA4 \
    44 HAS_CPUID_FLAG (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4)
    45
    46 @@ -140,7 +144,6 @@ extern const struct cpu_features *__get_cpu_features (void)
    47 # define HAS_SSSE3 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSSE3)
    48 # define HAS_SSE4_1 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_1)
    49 # define HAS_SSE4_2 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_2)
    50 -# define HAS_FMA HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_FMA)
    51
    52 # define index_Fast_Rep_String FEATURE_INDEX_1
    53 # define index_Fast_Copy_Backward FEATURE_INDEX_1
    54 @@ -148,6 +151,7 @@ extern const struct cpu_features *__get_cpu_features (void)
    55 # define index_Prefer_SSE_for_memop FEATURE_INDEX_1
    56 # define index_Fast_Unaligned_Load FEATURE_INDEX_1
    57 # define index_AVX_Usable FEATURE_INDEX_1
    58 +# define index_FMA_Usable FEATURE_INDEX_1
    59 # define index_FMA4_Usable FEATURE_INDEX_1
    60
    61 # define HAS_ARCH_FEATURE(name) \
    62 @@ -159,6 +163,7 @@ extern const struct cpu_features *__get_cpu_features (void)
    63 # define HAS_PREFER_SSE_FOR_MEMOP HAS_ARCH_FEATURE (Prefer_SSE_for_memop)
    64 # define HAS_FAST_UNALIGNED_LOAD HAS_ARCH_FEATURE (Fast_Unaligned_Load)
    65 # define HAS_AVX HAS_ARCH_FEATURE (AVX_Usable)
    66 +# define HAS_FMA HAS_ARCH_FEATURE (FMA_Usable)
    67 # define HAS_FMA4 HAS_ARCH_FEATURE (FMA4_Usable)
    68
    69 #endif /* __ASSEMBLER__ */
    70 --
    71 1.7.3.4