diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/init-arch.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c index f13a9f4b79..55c9f54f96 100644 --- a/sysdeps/x86_64/multiarch/init-arch.c +++ b/sysdeps/x86_64/multiarch/init-arch.c @@ -78,10 +78,13 @@ __init_cpu_features (void) case 0x25: case 0x2e: case 0x2f: - /* Rep string instructions are fast on Intel Core i3, i5 - and i7. */ + /* Rep string instructions and copy backward are fast on + Intel Core i3, i5 and i7. */ +#if index_Fast_Rep_String != index_Fast_Copy_Backward +# error index_Fast_Rep_String != index_Fast_Copy_Backward +#endif __cpu_features.feature[index_Fast_Rep_String] - |= bit_Fast_Rep_String; + |= bit_Fast_Rep_String | bit_Fast_Copy_Backward; break; } } |