diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/init-arch.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c index 7daaf46099..db74d977f2 100644 --- a/sysdeps/x86_64/multiarch/init-arch.c +++ b/sysdeps/x86_64/multiarch/init-arch.c @@ -1,6 +1,6 @@ /* Initialize CPU feature data. This file is part of the GNU C Library. - Copyright (C) 2008-2013 Free Software Foundation, Inc. + Copyright (C) 2008-2014 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@redhat.com>. The GNU C Library is free software; you can redistribute it and/or @@ -78,6 +78,21 @@ __init_cpu_features (void) __cpu_features.feature[index_Slow_BSF] |= bit_Slow_BSF; break; + case 0x37: + /* Unaligned load versions are faster than SSSE3 + on Silvermont. */ +#if index_Fast_Unaligned_Load != index_Prefer_PMINUB_for_stringop +# error index_Fast_Unaligned_Load != index_Prefer_PMINUB_for_stringop +#endif +#if index_Fast_Unaligned_Load != index_Slow_SSE4_2 +# error index_Fast_Unaligned_Load != index_Slow_SSE4_2 +#endif + __cpu_features.feature[index_Fast_Unaligned_Load] + |= (bit_Fast_Unaligned_Load + | bit_Prefer_PMINUB_for_stringop + | bit_Slow_SSE4_2); + break; + default: /* Unknown family 0x06 processors. Assuming this is one of Core i3/i5/i7 processors if AVX is available. */ |