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authorH.J. Lu <hongjiu.lu@intel.com>2016-04-19 22:39:28 +0000
committerH.J. Lu <hjl@gcc.gnu.org>2016-04-19 15:39:28 -0700
commit6048e2ed5e0d85438a1c89603672ebca88b5c379 (patch)
tree2d5901a57a8225a7e52500f43903fd1e0856b79d /gcc/gimplify.c
parent14f0f2fc44e8a3facd3398428fd60da6a50e7da4 (diff)
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Remove ssememalign
From INSTRUCTION EXCEPTION SPECIFICATION section in Intel software developer manual volume 2, only legacy SSE instructions with memory operand not 16-byte aligned get General Protection fault. There is no need to check 1, 2, 4, 8 byte alignments. Since x86 backend has accurate constraints and predicates for 16-byte alignment, we can remove alignment check in ix86_legitimate_combined_insn. * config/i386/i386.c (ix86_legitimate_combined_insn): Remove alignment check. * config/i386/i386.md (ssememalign): Removed. * config/i386/sse.md: Remove ssememalign attribute from patterns. From-SVN: r235224
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