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[Bug tree-optimization/68976] [6 Regression] ICE w/ -O2 (and above) -fgraphite-identity (or -floop-nest-optimize)
- From: "vries at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 21 Jan 2016 23:13:48 +0000
- Subject: [Bug tree-optimization/68976] [6 Regression] ICE w/ -O2 (and above) -fgraphite-identity (or -floop-nest-optimize)
- Auto-submitted: auto-generated
- References: <bug-68976-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68976
--- Comment #15 from vries at gcc dot gnu.org ---
https://gcc.gnu.org/ml/gcc-cvs/2016-01/msg00644.html :
Author: spop
Date: Thu Jan 21 02:13:52 2016
New Revision: 232658
URL: https://gcc.gnu.org/viewcvs?rev=232658&root=gcc&view=rev
Log:
fix PR68976: only add loop close phi for names defined in loop
* graphite-isl-ast-to-gimple.c: Fix comment.
* graphite-scop-detection.c (defined_in_loop_p): New.
(canonicalize_loop_closed_ssa): Do not add close phi nodes for SSA
names defined in loop.
gcc/testsuite
* gcc.dg/graphite/pr68976.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/graphite/pr68976.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/graphite-isl-ast-to-gimple.c
trunk/gcc/graphite-scop-detection.c
trunk/gcc/testsuite/ChangeLog