git.ipfire.org Git - thirdparty/gcc.git/commit

author	Richard Biener <rguenther@suse.de>
	Wed, 24 Feb 2016 14:54:01 +0000 (14:54 +0000)
committer	Richard Biener <rguenth@gcc.gnu.org>
	Wed, 24 Feb 2016 14:54:01 +0000 (14:54 +0000)
commit	f802a42401e16c7b918cee539e3c38f4d6f7a336
tree	2abaef0504af1d06e7a5df00c463d575dd11e6a7	tree \| snapshot
parent	525f795f86f448a6cedb6b35317ae28de64d23e0	commit \| diff

re PR tree-optimization/69760 (Wrong 64-bit memory address caused by an unneeded overflowing 32-bit integer multiplication on x86_64 under -O2 and -O3 code optimization)

2016-02-24 Richard Biener <rguenther@suse.de>
Jakub Jelinek <jakub@redhat.com>

PR middle-end/69760
* tree-scalar-evolution.c (interpret_rhs_expr): Re-write
conditionally executed ops to well-defined overflow behavior.

* gcc.dg/torture/pr69760.c: New testcase.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r233669

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/torture/pr69760.c	[new file with mode: 0644]	blob
gcc/tree-scalar-evolution.c		diff \| blob \| blame \| history