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re PR middle-end/77407 (Optimize integer i / abs (i) into the sign of i)
authorRichard Biener <rguenther@suse.de>
Thu, 29 Sep 2016 12:28:19 +0000 (12:28 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Thu, 29 Sep 2016 12:28:19 +0000 (12:28 +0000)
commitda186c1f433028066a476955a36ce48647b13c6b
treec3cb23c9a8b9f2504891fcb8abfcce79e11b1cd6tree
parentd657e9952231dee084e1ba658dc3462a82504d78commit | diff
re PR middle-end/77407 (Optimize integer i / abs (i) into the sign of i)

2016-09-29  Richard Biener  <rguenther@suse.de>

PR middle-end/77407
* match.pd: Add X / abs (X) -> X < 0 ? -1 : 1 and
X / -X -> -1 simplifications.

* gcc.dg/pr77407.c: New testcase.

From-SVN: r240616
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gcc/testsuite/gcc.dg/pr77407.c [new file with mode: 0644] blob