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[Bug rtl-optimization/63843] [5 Regression] wrong code generation at -O1 and higher
- From: "clyon at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Jun 2015 12:43:35 +0000
- Subject: [Bug rtl-optimization/63843] [5 Regression] wrong code generation at -O1 and higher
- Auto-submitted: auto-generated
- References: <bug-63843-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63843
--- Comment #6 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Author: clyon
Date: Thu Jun 4 12:43:03 2015
New Revision: 224125
URL: https://gcc.gnu.org/viewcvs?rev=224125&root=gcc&view=rev
Log:
2015-06-02 Christophe Lyon <christophe.lyon@linaro.org>
Backport from trunk r217753.
2014-11-19 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/63843
gcc/
* simplify-rtx.c (simplify_binary_operation_1) <case ASHIFTRT>: For
optimization of ashiftrt of subreg of lshiftrt, check that code
is ASHIFTRT.
gcc/testsuite
* gcc.c-torture/execute/pr63843.c: New test.
Added:
branches/linaro/gcc-4_9-branch/gcc/testsuite/gcc.c-torture/execute/pr63843.c
Modified:
branches/linaro/gcc-4_9-branch/gcc/ChangeLog.linaro
branches/linaro/gcc-4_9-branch/gcc/simplify-rtx.c
branches/linaro/gcc-4_9-branch/gcc/testsuite/ChangeLog.linaro