2017-09-26 Richard Biener <rguenther@suse.de>
commit9d8dca24f5973a77fe26c7229d91d0d611c5e1db
authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 26 Sep 2017 07:29:51 +0000 (26 07:29 +0000)
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 26 Sep 2017 07:29:51 +0000 (26 07:29 +0000)
treef0340b9988503b0649b09dc8a759ee36ef684ec4
parent173a2f85a13bdf699bd1cb6b3883f49a9b665958
2017-09-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/82320
* tree-ssa-sccvn.c (set_ssa_val_to): Changing undef to undef
isn't a change.

* gcc.dg/torture/pr82320.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253188 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/torture/pr82320.c [new file with mode: 0644]
gcc/tree-ssa-sccvn.c