https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77270
--- Comment #11 from uros at gcc dot gnu.org --- Author: uros Date: Sun Aug 28 16:30:32 2016 New Revision: 239810 URL: https://gcc.gnu.org/viewcvs?rev=239810&root=gcc&view=rev Log: Backport from mainline 2016-08-23 Venkataramanan Kumar <venkataramanan.ku...@amd.com> * config/i386/i386.c (processor_alias_table): Enable PTA_PRFCHW for targets amdfam10 and barcelona. Backport from mainline 2016-08-21 Uros Bizjak <ubiz...@gmail.com> PR target/77270 * config/i386/i386.md (prefetch): When TARGET_PRFCHW or TARGET_PREFETCHWT1 are disabled, emit 3dNOW! write prefetches for non-SSE2 athlons only, otherwise prefer SSE prefetches. Backport from mainline 2016-08-19 Uros Bizjak <ubiz...@gmail.com> PR target/77270 * config/i386/i386.c (ix86_option_override_internal): Remove PTA_PRFCHW from entries that also have PTA_3DNOW flag. Enable SSE prefetch also for TARGET_PREFETCHWT1. Do not try to enable TARGET_PRFCHW ISA flag here. * config/i386/i386.md (prefetch): Enable also for TARGET_3DNOW. Rewrite expander function body. (*prefetch_3dnow): Enable for TARGET_3DNOW and TARGET_PREFETCHWT1. testsuite/ChangeLog: Backport from mainline 2016-08-24 Uros Bizjak <ubiz...@gmail.com> PR target/77270 * gcc.dg/tree-ssa/loop-28.c: Also compile on 32bit x86 targets. (dg-options): Use -march=amdfam10 instead of -march=athlon. * gcc.dg/tree-ssa/update-unroll-1.c: Ditto. * gcc.dg/tree-ssa/prefetch-3.c: Ditto. * gcc.dg/tree-ssa/prefetch-4.c: Ditto. * gcc.dg/tree-ssa/prefetch-5.c: Ditto. * gcc.dg/tree-ssa/prefetch-6.c: Ditto. Do not require sse2 effective target. Remove scan-assembler-times directives. * gcc.dg/tree-ssa/prefetch-7.c: Ditto. * gcc.dg/tree-ssa/prefetch-8.c: Ditto. * gcc.dg/tree-ssa/prefetch-9.c: Ditto. Modified: branches/gcc-6-branch/gcc/ChangeLog branches/gcc-6-branch/gcc/config/i386/i386.c branches/gcc-6-branch/gcc/config/i386/i386.md branches/gcc-6-branch/gcc/testsuite/ChangeLog branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/loop-28.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-3.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-5.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-6.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c
