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[Bug rtl-optimization/43438] [4.3/4.4/4.5 Regression] possible wrong code bug
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Mar 2010 13:44:33 -0000
- Subject: [Bug rtl-optimization/43438] [4.3/4.4/4.5 Regression] possible wrong code bug
- References: <bug-43438-12544@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from rguenth at gcc dot gnu dot org 2010-03-20 13:44 -------
Subject: Bug 43438
Author: rguenth
Date: Sat Mar 20 13:44:18 2010
New Revision: 157592
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157592
Log:
2010-03-20 Richard Guenther <rguenther@suse.de>
PR rtl-optimization/43438
* combine.c (make_extraction): Properly zero-/sign-extend an
extraction of the low part of a CONST_INT. Also handle
CONST_DOUBLE.
* gcc.c-torture/execute/pr43438.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr43438.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43438