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[Bug tree-optimization/42963] [4.5/4.6 Regression] Redundant switch labels not cleaned up anymore
- From: "matz at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Apr 2010 14:51:38 -0000
- Subject: [Bug tree-optimization/42963] [4.5/4.6 Regression] Redundant switch labels not cleaned up anymore
- References: <bug-42963-280@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from matz at gcc dot gnu dot org 2010-04-14 14:51 -------
Subject: Bug 42963
Author: matz
Date: Wed Apr 14 14:50:33 2010
New Revision: 158345
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158345
Log:
PR tree-optimization/42963
* tree-cfg.c (touched_switch_bbs): New static variable.
(group_case_labels_stmt): New function broken out from ...
(group_case_labels): ... here, use the above.
(start_recording_case_labels): Allocate touched_switch_bbs.
(end_recording_case_labels): Deallocate it, call
group_case_labels_stmt.
(gimple_redirect_edge_and_branch): Remember index of affected BB.
testsuite/
* testsuite/gcc.dg/pr42963.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr42963.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-cfg.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42963