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[Bug tree-optimization/63266] [5 Regression] Test regression: gcc.target/sh/pr53568-1.c
- From: "thopre01 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 24 Sep 2014 08:27:54 +0000
- Subject: [Bug tree-optimization/63266] [5 Regression] Test regression: gcc.target/sh/pr53568-1.c
- Auto-submitted: auto-generated
- References: <bug-63266-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63266
--- Comment #1 from thopre01 at gcc dot gnu.org ---
Author: thopre01
Date: Wed Sep 24 08:27:21 2014
New Revision: 215546
URL: https://gcc.gnu.org/viewcvs?rev=215546&root=gcc&view=rev
Log:
2014-09-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR tree-optimization/63266
* tree-ssa-math-opts.c (struct symbolic_number): Add comment about
marker for unknown byte value.
(MARKER_MASK): New macro.
(MARKER_BYTE_UNKNOWN): New macro.
(HEAD_MARKER): New macro.
(do_shift_rotate): Mark bytes with unknown values due to sign
extension when doing an arithmetic right shift. Replace hardcoded
mask for marker by new MARKER_MASK macro.
(find_bswap_or_nop_1): Likewise and adjust ORing of two symbolic
numbers accordingly.
gcc/testsuite/
PR tree-optimization/63266
* gcc.dg/optimize-bswapsi-1.c (swap32_d): New bswap pass test.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/optimize-bswapsi-1.c
trunk/gcc/tree-ssa-math-opts.c