[PATCH] [i386] MASK_AVX256_SPLIT_UNALIGNED_STORE/LOAD should be cleared in opts->x_target_flags when X86_TUNE_AVX256_UNALIGNED_LOAD/STORE_OPTIMAL is enabled by target attribute.

[Hongtao Liu]

Hi:
  Bootstrapped and regtested on x86-64_iinux-gnu{-m32,}.
  Ok for trunk?

gcc/ChangeLog:

        PR target/100093
        * config/i386/i386-options.c (ix86_option_override_internal):
        Clear MASK_AVX256_SPLIT_UNALIGNED_LOAD/STORE in x_target_flags
        when X86_TUNE_AVX256_UNALIGNED_LOAD/STORE_OPTIMAL is enabled
        by target attribute.

gcc/testsuite/ChangeLog:

        PR target/100093
        * gcc.target/i386/pr100093.c: New test.


-- 
BR,
Hongtao
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