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[Bug c/59084] Sub-optimal vector moves in AVX2 vectorized loop for unaligned loads.
- From: "hjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 12 Nov 2013 13:26:53 +0000
- Subject: [Bug c/59084] Sub-optimal vector moves in AVX2 vectorized loop for unaligned loads.
- Auto-submitted: auto-generated
- References: <bug-59084-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59084
--- Comment #1 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Tue Nov 12 13:26:51 2013
New Revision: 204700
URL: http://gcc.gnu.org/viewcvs?rev=204700&root=gcc&view=rev
Log:
Properly handle AVX256 unaligned load and store
PR target/59084
* config/i386/i386.c (ix86_option_override_internal): Check
X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL and
X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL for
MASK_AVX256_SPLIT_UNALIGNED_LOAD and
MASK_AVX256_SPLIT_UNALIGNED_STORE.
* config/i386/x86-tune.def (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL):
Clear m_COREI7_AVX and update comments.
(X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/config/i386/x86-tune.def