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| author | Jan Hubicka <hubicka@ucw.cz> | 2017-10-08 12:42:54 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2017-10-08 10:42:54 +0000 |
| commit | 08a9e4e734ed74775a014fbe02699c290fbbd5cc (patch) | |
| tree | 60aecf6c205d507e72f0d6d5459fc593e7d32a5a | |
| parent | eb79a6b1cb7b97cda532e2efd5612fa80c3eb005 (diff) | |
| download | gcc-08a9e4e734ed74775a014fbe02699c290fbbd5cc.zip gcc-08a9e4e734ed74775a014fbe02699c290fbbd5cc.tar.gz gcc-08a9e4e734ed74775a014fbe02699c290fbbd5cc.tar.bz2 | |
i386.c (ix86_expand_set_or_movmem): Disable 512bit loops for targets that preffer 128bit.
* i386.c (ix86_expand_set_or_movmem): Disable 512bit loops for targets
that preffer 128bit.
From-SVN: r253524
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e745313..3890fad 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2017-10-08 Jan Hubicka <hubicka@ucw.cz> + * i386.c (ix86_expand_set_or_movmem): Disable 512bit loops for targets + that preffer 128bit. + +2017-10-08 Jan Hubicka <hubicka@ucw.cz> + * i386.c (has_dispatch): Disable for Ryzen. 2017-10-08 Olivier Hainque <hainque@adacore.com> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 8613aa8..1ee8351 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -28947,6 +28947,9 @@ ix86_expand_set_or_movmem (rtx dst, rtx src, rtx count_exp, rtx val_exp, && optab_handler (mov_optab, wider_mode) != CODE_FOR_nothing) move_mode = wider_mode; + if (TARGET_AVX128_OPTIMAL && GET_MODE_BITSIZE (move_mode) > 128) + move_mode = TImode; + /* Find the corresponding vector mode with the same size as MOVE_MODE. MOVE_MODE is an integer mode at the moment (SI, DI, TI, etc.). */ if (GET_MODE_SIZE (move_mode) > GET_MODE_SIZE (word_mode)) |