> * config/i386/i386.opt (mprefer-avx128): Redefine the flag as a Mask > option. > > * config/i386/i386.h (ix86_tune_indices): Add X86_TUNE_AVX128_OPTIMAL > entry. > (TARGET_AVX128_OPTIMAL): New definition. > > * config/i386/i386.c (initial_ix86_tune_features): Initialize > X86_TUNE_AVX128_OPTIMAL entry. > (ix86_option_override_internal): Enable the generation > of the 128-bit instructions when TARGET_AVX128_OPTIMAL is set. > (ix86_preferred_simd_mode): Use TARGET_PREFER_AVX128. > (ix86_autovectorize_vector_sizes): Use TARGET_PREFER_AVX128.
OK for mainline. For 4.6 it is RM's call. Thanks, Honza
