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re PR tree-optimization/42717 (ice: verify_ssa failed)
authorRichard Guenther <rguenther@suse.de>
Wed, 20 Jan 2010 12:30:15 +0000 (12:30 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Wed, 20 Jan 2010 12:30:15 +0000 (12:30 +0000)
commite9a8afaafc0c11d8161d87f43950f33a3a12b096
treee5b239c53d0c17612f9f4897508eeeb107dc50dctree
parentbd9b2e5379791c817933e6a77f41d0b84d082447commit | diff
re PR tree-optimization/42717 (ice: verify_ssa failed)

2010-01-20  Richard Guenther  <rguenther@suse.de>

PR tree-optimization/42717
* tree-ssa-dce.c (get_live_post_dom): Remove.
(forward_edge_to_pdom): Take an arbitrary edge to copy
degenerate PHI args from.
(remove_dead_stmt): Use the first post-dominator even if it
does not contain live statements as redirection destination.

* gcc.c-torture/compile/pr42717.c: New testcase.

From-SVN: r156076
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.c-torture/compile/pr42717.c [new file with mode: 0644] blob
gcc/tree-ssa-dce.c diff | blob | history