r236882 - in /trunk/gcc: ChangeLog match.pd tes...

[amonakov@gcc.gnu.org]

Author: amonakov
Date: Mon May 30 14:37:02 2016
New Revision: 236882

URL: https://gcc.gnu.org/viewcvs?rev=236882&root=gcc&view=rev
Log:
match.pd: optimize unsigned mul overflow check

gcc/
2016-05-28  Alexander Monakov  <amonakov@ispras.ru>
            Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/71289
	* match.pd (-1 / B < A, A > -1 / B): New transformations.

gcc/testsuite/
2016-05-28  Alexander Monakov  <amonakov@ispras.ru>

	PR tree-optimization/71289
	* gcc.dg/pr71289.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr71289.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog