| commit | 3ab76bd4ffe4c50fddd0edcf38d6851cce7e581a | |
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 23 Nov 2017 09:05:11 +0000 (23 09:05 +0000) | ||
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 23 Nov 2017 09:05:11 +0000 (23 09:05 +0000) | ||
| tree | d8b5404eccbb222d1e6e5d2a067adec60e607835 | treesnapshot (tar.gz zip) |
| parent | 4e90f5752b2434ed903157117c7fc79a486484f2 | commitdiff |
2017-11-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/23094
* tree-ssa-sccvn.c (vuse_ssa_val): Handle VN_TOP when we
come here from walking over backedges in the first iteration.
(vn_reference_lookup_3): Skip clobbers that store the same value.
* gcc.dg/tree-ssa/ssa-fre-61.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255093 138bc75d-0d04-0410-961f-82ee72b054a4
PR tree-optimization/23094
* tree-ssa-sccvn.c (vuse_ssa_val): Handle VN_TOP when we
come here from walking over backedges in the first iteration.
(vn_reference_lookup_3): Skip clobbers that store the same value.
* gcc.dg/tree-ssa/ssa-fre-61.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255093 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-61.c | [new file with mode: 0644] | blob |
| gcc/tree-ssa-sccvn.c | diffblobblamehistory |