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[Bug tree-optimization/34371] [4.3 Regression] verify_stmts failed (incorrect sharing of tree nodes)
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2007 22:49:55 -0000
- Subject: [Bug tree-optimization/34371] [4.3 Regression] verify_stmts failed (incorrect sharing of tree nodes)
- References: <bug-34371-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from jakub at gcc dot gnu dot org 2007-12-10 22:49 -------
Subject: Bug 34371
Author: jakub
Date: Mon Dec 10 22:49:43 2007
New Revision: 130755
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130755
Log:
PR tree-optimization/34371
* tree-vectorizer.h (struct _loop_vec_info): Add num_iters_unchanged
field.
(LOOP_VINFO_NITERS_UNCHANGED): Define to num_iters_unchanged field.
* tree-vectorizer.c (set_prologue_iterations,
slpeel_tree_peel_loop_to_edge): Call unshare_expr on
LOOP_VINFO_NITERS_UNCHANGED before using it.
* gcc.c-torture/compile/20071207-1.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/20071207-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vectorizer.c
trunk/gcc/tree-vectorizer.h
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34371