[Bug tree-optimization/48822] [4.5/4.6/4.7 Regression] G++ gets stucks and never finishes compilation when enabling -O2/3 optimization options.
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon May 2 13:13:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48822
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-02 13:11:30 UTC ---
Author: rguenth
Date: Mon May 2 13:11:27 2011
New Revision: 173250
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173250
Log:
2011-05-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/48822
* tree-ssa-sccvn.c (set_ssa_val_to): Never go up the lattice.
(process_scc): Indicate which iteration we start.
* gcc.dg/torture/pr48822.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr48822.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-sccvn.c
More information about the Gcc-bugs
mailing list