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[Bug tree-optimization/47053] [4.5/4.6 Regression] ICE: verify_flow_info failed: BB 2 can not throw but has an EH edge with -O -fnon-call-exceptions
- From: "law at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 22 Jan 2011 04:11:14 +0000
- Subject: [Bug tree-optimization/47053] [4.5/4.6 Regression] ICE: verify_flow_info failed: BB 2 can not throw but has an EH edge with -O -fnon-call-exceptions
- Auto-submitted: auto-generated
- References: <bug-47053-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47053
--- Comment #4 from Jeffrey A. Law <law at gcc dot gnu.org> 2011-01-22 04:09:53 UTC ---
Author: law
Date: Sat Jan 22 04:09:44 2011
New Revision: 169123
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169123
Log:
PR tree-optimization/47053
* tree-ssa-dse.c (need_eh_cleanup): New bitmap.
(dse_optimize_stmt): Set the appropriate bit in NEED_EH_CLEANUP when
statements are deleted.
(tree_ssa_dse): Allocate & free NEED_EH_CLEANUP. If NEED_EH_CLEANUP
is nonempty, then purge dead edges and cleanup the CFG.
PR tree-optimization/47053
* g++.dg/pr47053.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/pr47053.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-dse.c