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author | Richard Guenther <rguenther@suse.de> | 2007-11-16 10:10:05 +0000 |
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committer | Richard Biener <rguenth@gcc.gnu.org> | 2007-11-16 10:10:05 +0000 |
commit | 7f879c9615a980c3874350e9739bce139c67f322 (patch) | |
tree | 68350f8f197b9af4a24605143e5aa07c643cbfdd /gcc/tree-ssa-structalias.c | |
parent | b2c3bcf47b9131455a7fccfaa699269ae108d76b (diff) | |
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re PR tree-optimization/34099 (optimizer problem)
2007-11-16 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34099
* tree-ssa-ccp.c (likely_value): Use a whitelist for operators
that produce UNDEFINED result if at least one of its operands
is UNDEFINED. By default the result is only UNDEFINED if all
operands are UNDEFINED.
* g++.dg/torture/pr3499.C: New testcase.
* gcc.c-torture/execute/pr34099.c: Likewise.
From-SVN: r130222
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
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