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* [Bug tree-optimization/64436] New: optimize-bswapdi-3.c fails on aarch64_be-none-elf @ 2014-12-29 16:38 thopre01 at gcc dot gnu.org 2014-12-29 16:39 ` [Bug tree-optimization/64436] " thopre01 at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: thopre01 at gcc dot gnu.org @ 2014-12-29 16:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64436 Bug ID: 64436 Summary: optimize-bswapdi-3.c fails on aarch64_be-none-elf Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: thopre01 at gcc dot gnu.org gcc.dg/optimize-bswapdi-3.c started to fail about 2 weeks ago. Investigation shows that the way bswap create the symbolic number that corresponds to a bitwise OR is broken for big endian target. There also seems to be some bug in the computation of the "range" (in bswap terms) of that same symbolic number. Here is the the testsuite log: FAIL: gcc.dg/optimize-bswapdi-3.c scan-tree-dump-times bswap "64 bit bswap implementation found at" 3 FAIL: gcc.dg/optimize-bswapdi-3.c scan-tree-dump-times bswap "64 bit load in target endianness found at" 3 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/64436] optimize-bswapdi-3.c fails on aarch64_be-none-elf 2014-12-29 16:38 [Bug tree-optimization/64436] New: optimize-bswapdi-3.c fails on aarch64_be-none-elf thopre01 at gcc dot gnu.org @ 2014-12-29 16:39 ` thopre01 at gcc dot gnu.org 2015-01-13 11:23 ` thopre01 at gcc dot gnu.org 2015-01-28 2:47 ` thopre01 at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: thopre01 at gcc dot gnu.org @ 2014-12-29 16:39 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64436 thopre01 at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2014-12-29 Ever confirmed|0 |1 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/64436] optimize-bswapdi-3.c fails on aarch64_be-none-elf 2014-12-29 16:38 [Bug tree-optimization/64436] New: optimize-bswapdi-3.c fails on aarch64_be-none-elf thopre01 at gcc dot gnu.org 2014-12-29 16:39 ` [Bug tree-optimization/64436] " thopre01 at gcc dot gnu.org @ 2015-01-13 11:23 ` thopre01 at gcc dot gnu.org 2015-01-28 2:47 ` thopre01 at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: thopre01 at gcc dot gnu.org @ 2015-01-13 11:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64436 --- Comment #1 from thopre01 at gcc dot gnu.org --- Author: thopre01 Date: Tue Jan 13 11:23:01 2015 New Revision: 219525 URL: https://gcc.gnu.org/viewcvs?rev=219525&root=gcc&view=rev Log: 2015-01-13 Thomas Preud'homme <thomas.preudhomme@arm.com> gcc/ PR tree-optimization/64436 * tree-ssa-math-opts.c (find_bswap_or_nop_1): Move code performing the merge of two symbolic numbers for a bitwise OR to ... (perform_symbolic_merge): This. Also fix computation of the range and end of the symbolic number corresponding to the result of a bitwise OR. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-ssa-math-opts.c ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/64436] optimize-bswapdi-3.c fails on aarch64_be-none-elf 2014-12-29 16:38 [Bug tree-optimization/64436] New: optimize-bswapdi-3.c fails on aarch64_be-none-elf thopre01 at gcc dot gnu.org 2014-12-29 16:39 ` [Bug tree-optimization/64436] " thopre01 at gcc dot gnu.org 2015-01-13 11:23 ` thopre01 at gcc dot gnu.org @ 2015-01-28 2:47 ` thopre01 at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: thopre01 at gcc dot gnu.org @ 2015-01-28 2:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64436 Thomas Preud'homme <thopre01 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Known to work| |5.0 Resolution|--- |FIXED --- Comment #2 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> --- Fixed as of r219525 in trunk and the bug doesn't affect release branch. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-01-28 2:47 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-12-29 16:38 [Bug tree-optimization/64436] New: optimize-bswapdi-3.c fails on aarch64_be-none-elf thopre01 at gcc dot gnu.org 2014-12-29 16:39 ` [Bug tree-optimization/64436] " thopre01 at gcc dot gnu.org 2015-01-13 11:23 ` thopre01 at gcc dot gnu.org 2015-01-28 2:47 ` thopre01 at gcc dot gnu.org
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