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re PR middle-end/26198 (Unfolded comparison after cfg_cleanup)
authorRichard Guenther <rguenther@suse.de>
Fri, 12 Oct 2007 08:42:13 +0000 (08:42 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Fri, 12 Oct 2007 08:42:13 +0000 (08:42 +0000)
commit10372bd4997eba953d38a6d582faad52191e83ae
treef8336d7e5dd6093801511dfd43a58da560108cd7tree
parent6d3bf8498df74204a3cb0a74481634313d892fd6commit | diff
re PR middle-end/26198 (Unfolded comparison after cfg_cleanup)

2007-10-12  Richard Guenther  <rguenther@suse.de>

PR middle-end/26198
* tree-ssa-forwprop.c (can_propagate_from): Do not propagate from
a rhs with side-effects or which is a load.
(forward_propagate_into_cond): Also try combining both operands.

* gcc.dg/tree-ssa/forwprop-3.c: New testcase.
* gcc.c-torture/execute/20071011-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-pre-9.c: Adjust.

From-SVN: r129256
gcc/ChangeLog diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.c-torture/execute/20071011-1.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/tree-ssa/forwprop-3.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-9.c diff | blob | blame | history
gcc/tree-ssa-forwprop.c diff | blob | blame | history
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