* config/i386/i386.c (ix86_option_override_internal): Turn on all -mavx target flags by default as they are dependent on AVX anyway. Index: config/i386/i386.c =================================================================== --- config/i386/i386.c (revision 200374) +++ config/i386/i386.c (working copy) @@ -3936,34 +3936,26 @@ ix86_option_override_internal (bool main_args_p) #endif } - if (TARGET_AVX) - { - /* When not optimize for size, enable vzeroupper optimization for - TARGET_AVX with -fexpensive-optimizations and split 32-byte - AVX unaligned load/store. */ - if (!optimize_size) - { - if (flag_expensive_optimizations - && !(target_flags_explicit & MASK_VZEROUPPER)) - target_flags |= MASK_VZEROUPPER; - if ((x86_avx256_split_unaligned_load & ix86_tune_mask) - && !(target_flags_explicit & MASK_AVX256_SPLIT_UNALIGNED_LOAD)) - target_flags |= MASK_AVX256_SPLIT_UNALIGNED_LOAD; - if ((x86_avx256_split_unaligned_store & ix86_tune_mask) - && !(target_flags_explicit & MASK_AVX256_SPLIT_UNALIGNED_STORE)) - target_flags |= MASK_AVX256_SPLIT_UNALIGNED_STORE; - /* Enable 128-bit AVX instruction generation - for the auto-vectorizer. */ - if (TARGET_AVX128_OPTIMAL - && !(target_flags_explicit & MASK_PREFER_AVX128)) - target_flags |= MASK_PREFER_AVX128; - } - } - else - { - /* Disable vzeroupper pass if TARGET_AVX is disabled. */ - target_flags &= ~MASK_VZEROUPPER; - } + /* When not optimize for size, enable vzeroupper optimization for + TARGET_AVX with -fexpensive-optimizations and split 32-byte + AVX unaligned load/store. */ + if (!optimize_size) + { + if (flag_expensive_optimizations + && !(target_flags_explicit & MASK_VZEROUPPER)) + target_flags |= MASK_VZEROUPPER; + if ((x86_avx256_split_unaligned_load & ix86_tune_mask) + && !(target_flags_explicit & MASK_AVX256_SPLIT_UNALIGNED_LOAD)) + target_flags |= MASK_AVX256_SPLIT_UNALIGNED_LOAD; + if ((x86_avx256_split_unaligned_store & ix86_tune_mask) + && !(target_flags_explicit & MASK_AVX256_SPLIT_UNALIGNED_STORE)) + target_flags |= MASK_AVX256_SPLIT_UNALIGNED_STORE; + /* Enable 128-bit AVX instruction generation + for the auto-vectorizer. */ + if (TARGET_AVX128_OPTIMAL + && !(target_flags_explicit & MASK_PREFER_AVX128)) + target_flags |= MASK_PREFER_AVX128; + } if (ix86_recip_name) {