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2011-05-11 Richard Guenther <rguenther@suse.de>
authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 11 May 2011 14:13:38 +0000 (14:13 +0000)
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 11 May 2011 14:13:38 +0000 (14:13 +0000)
commit26f54bd0b95a0b9799a2d1671c36600132398eb1
treef6fe582ca34e43fa86ffc5ab363666d20a91ea44tree | snapshot
parent8f2eb9e1858f98693c41c75e15c960f449eec8b6commit | diff
2011-05-11  Richard Guenther  <rguenther@suse.de>

PR tree-optimization/15256
* tree-ssa-forwprop.c (simplify_bitwise_binary): Canonicalize
(A & B) | C, combine (A op CST1) op CST2.
(tree_ssa_forward_propagate_single_use_vars): Only bother to
visit assigns that have uses.

* gcc.dg/tree-ssa/forwprop-14.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@173659 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/tree-ssa/forwprop-14.c [new file with mode: 0644] blob
gcc/tree-ssa-forwprop.c diff | blob | history
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