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[Bug tree-optimization/48134] New: [4.6/4.7 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:1085 with custom flags
- From: "zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 15 Mar 2011 13:39:11 +0000
- Subject: [Bug tree-optimization/48134] New: [4.6/4.7 Regression] ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:1085 with custom flags
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48134
Summary: [4.6/4.7 Regression] ICE: in refs_may_alias_p_1, at
tree-ssa-alias.c:1085 with custom flags
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 23663
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23663
reduced testcase (from gcc.dg/pr19633-1.c)
Maybe similiar to PR47283.
Compiler output:
$ gcc -O2 -fstack-check=specific -fno-tree-dse -fno-tree-fre
-fno-tree-loop-optimize -g testcase.c
testcase.c: In function 'foo':
testcase.c:26:1: internal compiler error: in refs_may_alias_p_1, at
tree-ssa-alias.c:1085
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r170964 - crash
4.6 r170955 - crash
4.5 r170955 - OK