OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* x86-tune.def: Enable inter_unit_moves_to_vec for generic.

Browse Source 
From-SVN: r267484
This commit is contained in:
Jan Hubicka 2018-12-31 11:05:30 +01:00 committed by Jan Hubicka
parent 80c2bad6b6
commit 41ee4e75ab
2 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
gcc/ChangeLog
View File

@ -1,3 +1,7 @@
2018-12-30 Jan Hubicka <hubicka@ucw.cz>
* x86-tune.def: Enable inter_unit_moves_to_vec for generic.
2018-12-30 Martin Sebor <msebor@redhat.com> 2018-12-30 Martin Sebor <msebor@redhat.com>
Jeff Law <law@redhat.com> Jeff Law <law@redhat.com>

8
gcc/config/i386/x86-tune.def
View File

@ -379,9 +379,13 @@ DEF_TUNE (X86_TUNE_SSE_LOAD0_BY_PXOR, "sse_load0_by_pxor",
/* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from integer /* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from integer
to SSE registers. If disabled, the moves will be done by storing to SSE registers. If disabled, the moves will be done by storing
the value to memory and reloading. */ the value to memory and reloading.
Enable this flag for generic - the only relevant architecture preferring
no inter-unit moves is Buldozer. While this makes small regression on SPECfp
scores (sub 0.3%), disabling inter-unit moves penalizes noticeably hand
written vectorized code which use i.e. _mm_set_epi16. */
DEF_TUNE (X86_TUNE_INTER_UNIT_MOVES_TO_VEC, "inter_unit_moves_to_vec", DEF_TUNE (X86_TUNE_INTER_UNIT_MOVES_TO_VEC, "inter_unit_moves_to_vec",
~(m_ATHLON_K8 | m_AMDFAM10 | m_BDVER | m_BTVER | m_GENERIC)) ~(m_ATHLON_K8 | m_AMDFAM10 | m_BDVER | m_BTVER))
/* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from SSE /* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from SSE
to integer registers. If disabled, the moves will be done by storing to integer registers. If disabled, the moves will be done by storing