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Backport from mainline
2014-07-10 Richard Biener <rguenther@suse.de>
PR c-family/61741
* c-c++-common/torture/pr61741.c: Use signed char.
2014-07-09 Richard Biener <rguenther@suse.de>
PR c-family/61741
* c-gimplify.c (c_gimplify_expr): Gimplify self-modify expressions
using unsigned arithmetic if overflow does not wrap instead of
if overflow is undefined.
* c-c++-common/torture/pr61741.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_9-branch@212742 138bc75d-0d04-0410-961f-82ee72b054a4
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