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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-05-20 14:19:05 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-05-20 14:19:05 +0000 |
| commit | 8a245b9d2de6d22fb5017b062358f7f3d5a69a2e (patch) | |
| tree | 940cae516f3f04771fe6a0abd862dd3ee83bd9da /gcc/tree-ssa-ifcombine.c | |
| parent | 98b28ab670569a961b4f56a5d4bca75fea37cadc (diff) | |
| download | gcc-8a245b9d2de6d22fb5017b062358f7f3d5a69a2e.tar.gz | |
PR tree-optimization/49073
* gimple-fold.c (and_comparisons_1, or_comparisons_1): Return
NULL if PHI argument is SSA_NAME, whose def_stmt is dominated
by the PHI.
* tree-ssa-ifcombine.c (tree_ssa_ifcombine): Calculate dominators.
* gcc.c-torture/execute/pr49073.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@173948 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-ifcombine.c')
| -rw-r--r-- | gcc/tree-ssa-ifcombine.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-ifcombine.c b/gcc/tree-ssa-ifcombine.c index e23bb763d19..9063bfdcd55 100644 --- a/gcc/tree-ssa-ifcombine.c +++ b/gcc/tree-ssa-ifcombine.c @@ -1,5 +1,5 @@ /* Combining of if-expressions on trees. - Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc. + Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. Contributed by Richard Guenther <rguenther@suse.de> This file is part of GCC. @@ -625,6 +625,7 @@ tree_ssa_ifcombine (void) int i; bbs = blocks_in_phiopt_order (); + calculate_dominance_info (CDI_DOMINATORS); for (i = 0; i < n_basic_blocks - NUM_FIXED_BLOCKS; ++i) { |