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re PR tree-optimization/55011 (GCC in an infinite loop at -O2 in VRP)
authorRichard Biener <rguenther@suse.de>
Mon, 22 Oct 2012 13:26:48 +0000 (13:26 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Mon, 22 Oct 2012 13:26:48 +0000 (13:26 +0000)
commit43b1bad65d0d1142c37a91dcf6cf2a035c541e4d
tree514c75894fabfe05bd894b9b7d6abef68f48e6actree
parente81bf2ce3b34a1fa0b83df792f5e8661dd1a61cacommit | diff
re PR tree-optimization/55011 (GCC in an infinite loop at -O2 in VRP)

2012-10-22  Richard Biener  <rguenther@suse.de>

PR tree-optimization/55011
* tree-vrp.c (update_value_range): For invalid lattice transitions
drop to VARYING.

* gcc.dg/torture/pr55011.c: New testcase.

From-SVN: r192689
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/torture/pr55011.c [new file with mode: 0644] blob
gcc/tree-vrp.c diff | blob | history