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re PR c/39855 (Shift optimization discards operands' side effects)
authorJakub Jelinek <jakub@redhat.com>
Wed, 22 Apr 2009 21:57:52 +0000 (23:57 +0200)
committerJakub Jelinek <jakub@gcc.gnu.org>
Wed, 22 Apr 2009 21:57:52 +0000 (23:57 +0200)
commit2c0eba5af00a2544e7e15bd8052a53bdb2b6f22f
tree9490a0f1996cc98864effb946df615d1062f9693tree
parent023f059b5c168cb31e8818d2c983f5687b169df4commit | diff
re PR c/39855 (Shift optimization discards operands' side effects)

PR c/39855
* fold-const.c (fold_binary) <case LSHIFT_EXPR>: When optimizing
into 0, use omit_one_operand.

* gcc.dg/torture/pr39855.c: New test.

From-SVN: r146617
gcc/ChangeLog diff | blob | history
gcc/fold-const.c diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/torture/pr39855.c [new file with mode: 0644] blob