r246305 - in /trunk/gcc: ChangeLog fold-const.c...

[jakub@gcc.gnu.org]

Author: jakub
Date: Tue Mar 21 08:10:30 2017
New Revision: 246305

URL: https://gcc.gnu.org/viewcvs?rev=246305&root=gcc&view=rev
Log:
	PR c/67338
	* fold-const.c (round_up_loc): Negate divisor in unsigned type to
	avoid UB.

	* gcc.dg/pr67338.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr67338.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog