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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-04-18 08:27:22 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-04-18 08:27:32 -0700 |
| commit | 1c53cb49de6d82d9469ccbd5aa0c55924502bd8b (patch) | |
| tree | 6af724b3aa088cd29e6ad0b32e7249b1a7b8e62a /sysdeps/x86/cpu-features.h | |
| parent | cef9b65376a044309f74b77860ccf3c48a4ae315 (diff) | |
| download | glibc-1c53cb49de6d82d9469ccbd5aa0c55924502bd8b.tar.gz glibc-1c53cb49de6d82d9469ccbd5aa0c55924502bd8b.tar.xz glibc-1c53cb49de6d82d9469ccbd5aa0c55924502bd8b.zip | |
x86: Set Prefer_No_VZEROUPPER if AVX512ER is available
AVX512ER won't be implemented in any Xeon processors and will be in all Xeon Phi processors. Don't check CPU model number when setting Prefer_No_VZEROUPPER for Xeon Phi. Instead, set Prefer_No_VZEROUPPER if AVX512ER is available. It works with current and future Xeon Phi and non-Xeon Phi processors. * sysdeps/x86/cpu-features.c (init_cpu_features): Set Prefer_No_VZEROUPPER if AVX512ER is available. * sysdeps/x86/cpu-features.h (bit_cpu_AVX512PF): New. (bit_cpu_AVX512ER): Likewise. (bit_cpu_AVX512CD): Likewise. (bit_cpu_AVX512BW): Likewise. (bit_cpu_AVX512VL): Likewise. (index_cpu_AVX512PF): Likewise. (index_cpu_AVX512ER): Likewise. (index_cpu_AVX512CD): Likewise. (index_cpu_AVX512BW): Likewise. (index_cpu_AVX512VL): Likewise. (reg_AVX512PF): Likewise. (reg_AVX512ER): Likewise. (reg_AVX512CD): Likewise. (reg_AVX512BW): Likewise. (reg_AVX512VL): Likewise.
Diffstat (limited to 'sysdeps/x86/cpu-features.h')
| -rw-r--r-- | sysdeps/x86/cpu-features.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h index 8ec1562fe7..1583d65345 100644 --- a/sysdeps/x86/cpu-features.h +++ b/sysdeps/x86/cpu-features.h @@ -63,6 +63,11 @@ #define bit_cpu_AVX2 (1 << 5) #define bit_cpu_AVX512F (1 << 16) #define bit_cpu_AVX512DQ (1 << 17) +#define bit_cpu_AVX512PF (1 << 26) +#define bit_cpu_AVX512ER (1 << 27) +#define bit_cpu_AVX512CD (1 << 28) +#define bit_cpu_AVX512BW (1 << 30) +#define bit_cpu_AVX512VL (1u << 31) /* XCR0 Feature flags. */ #define bit_XMM_state (1 << 1) @@ -239,6 +244,11 @@ extern const struct cpu_features *__get_cpu_features (void) # define index_cpu_AVX2 COMMON_CPUID_INDEX_7 # define index_cpu_AVX512F COMMON_CPUID_INDEX_7 # define index_cpu_AVX512DQ COMMON_CPUID_INDEX_7 +# define index_cpu_AVX512PF COMMON_CPUID_INDEX_7 +# define index_cpu_AVX512ER COMMON_CPUID_INDEX_7 +# define index_cpu_AVX512CD COMMON_CPUID_INDEX_7 +# define index_cpu_AVX512BW COMMON_CPUID_INDEX_7 +# define index_cpu_AVX512VL COMMON_CPUID_INDEX_7 # define index_cpu_ERMS COMMON_CPUID_INDEX_7 # define index_cpu_RTM COMMON_CPUID_INDEX_7 # define index_cpu_FMA COMMON_CPUID_INDEX_1 @@ -258,6 +268,11 @@ extern const struct cpu_features *__get_cpu_features (void) # define reg_AVX2 ebx # define reg_AVX512F ebx # define reg_AVX512DQ ebx +# define reg_AVX512PF ebx +# define reg_AVX512ER ebx +# define reg_AVX512CD ebx +# define reg_AVX512BW ebx +# define reg_AVX512VL ebx # define reg_ERMS ebx # define reg_RTM ebx # define reg_FMA ecx |