[Bug target/92448] Confusing using of TARGET_PREFER_AVX128

[liuhongt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92448

--- Comment #3 from liuhongt at gcc dot gnu.org ---
Author: liuhongt
Date: Mon Nov 18 02:22:55 2019
New Revision: 278385

URL: https://gcc.gnu.org/viewcvs?rev=278385&root=gcc&view=rev
Log:
Split X86_TUNE_AVX128_OPTIMAL into X86_TUNE_AVX256_SPLIT_REGS
and X86_TUNE_AVX128_OPTIMAL.

Changelog
gcc/
        PR target/92448
        * config/i386/i386-expand.c (ix86_expand_set_or_cpymem):
        Replace TARGET_AVX128_OPTIMAL with TARGET_AVX256_SPLIT_REGS.
        * config/i386/i386-option.c (ix86_vec_cost): Ditto.
        (ix86_reassociation_width): Ditto.
        * config/i386/i386-options.c (ix86_option_override_internal):
        Replace TARGET_AVX128_OPTIAML with
        ix86_tune_features[X86_TUNE_AVX128_OPTIMAL]
        * config/i386/i386.h (TARGET_AVX256_SPLIT_REGS): New macro.
        (TARGET_AVX128_OPTIMAL): Deleted.
        * config/i386/x86-tune.def (X86_TUNE_AVX256_SPLIT_REGS): New
        DEF_TUNE.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386-expand.c
    trunk/gcc/config/i386/i386-options.c
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/config/i386/x86-tune.def