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| author | Richard Guenther <rguenther@suse.de> | 2008-02-15 15:24:19 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-02-15 15:24:19 +0000 |
| commit | 2e58df6ecf3d060e3a8bd95f898baf89f733e1f5 (patch) | |
| tree | 84bac3426747a9ff72e762dc1ff06bfc9e4f61f7 /gcc/tree-flow.h | |
| parent | 508515b0277f2adadc610acb2dd14f769ba992ff (diff) | |
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re PR tree-optimization/35164 (Unable to coalesce ab SSA_NAMEs)
2008-02-15 Richard Guenther <rguenther@suse.de>
Zdenek Dvorak <ook@ucw.cz>
PR tree-optimization/35164
* tree-flow.h (stmt_references_abnormal_ssa_name): Declare.
* tree-dfa.c (stmt_references_abnormal_ssa_name): New function.
* tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
Only propagate addresses which do not have abnormal SSA_NAMEs
in their operands.
* g++.dg/torture/pr35164-1.C: New testcase.
* g++.dg/torture/pr35164-2.C: Likewise.
Co-Authored-By: Zdenek Dvorak <ook@ucw.cz>
From-SVN: r132345
Diffstat (limited to 'gcc/tree-flow.h')
| -rw-r--r-- | gcc/tree-flow.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h index adc2508..286c60b 100644 --- a/gcc/tree-flow.h +++ b/gcc/tree-flow.h @@ -822,6 +822,7 @@ extern void find_new_referenced_vars (tree *); extern tree make_rename_temp (tree, const char *); extern void set_default_def (tree, tree); extern tree gimple_default_def (struct function *, tree); +extern bool stmt_references_abnormal_ssa_name (tree); /* In tree-phinodes.c */ extern void reserve_phi_args_for_new_edge (basic_block); |