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[Bug tree-optimization/43236] -ftree-loop-distribution produces wrong code in reload1.c:delete_output_reload(), bootstrap fails
- From: "amonakov 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 Mar 2010 12:54:19 -0000
- Subject: [Bug tree-optimization/43236] -ftree-loop-distribution produces wrong code in reload1.c:delete_output_reload(), bootstrap fails
- References: <bug-43236-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from amonakov at gcc dot gnu dot org 2010-03-10 12:54 -------
Subject: Bug 43236
Author: amonakov
Date: Wed Mar 10 12:53:51 2010
New Revision: 157339
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157339
Log:
PR tree-optimization/43236
* tree-loop-distribution.c (generate_memset_zero): Fix off-by-one
error in calculation of base address in reverse iteration case.
(generate_builtin): Take number of latch executions if the statement
is in the latch.
* gcc.c-torture/execute/pr43236.c: New.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr43236.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-loop-distribution.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43236