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[Bug rtl-optimization/47157] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -O
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 3 Jan 2011 20:59:36 +0000
- Subject: [Bug rtl-optimization/47157] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -O
- Auto-submitted: auto-generated
- References: <bug-47157-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47157
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-03 20:59:25 UTC ---
Author: jakub
Date: Mon Jan 3 20:59:20 2011
New Revision: 168439
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168439
Log:
PR rtl-optimization/47157
* combine.c (try_combine): If undobuf.other_insn becomes
(set (pc) (pc)) jump, call update_cfg_for_uncondjump on it
and set *new_direct_jump_p too.
* gcc.c-torture/compile/pr47157.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr47157.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
trunk/gcc/testsuite/ChangeLog