https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85475
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Fri Apr 20 10:31:23 2018 New Revision: 259519 URL: https://gcc.gnu.org/viewcvs?rev=259519&root=gcc&view=rev Log: 2018-04-20 Richard Biener <rguent...@suse.de> PR middle-end/85475 * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential complexity by forcing a single use of the multiply operand. * gcc.dg/torture/pr85475.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr85475.c Modified: trunk/gcc/ChangeLog trunk/gcc/match.pd trunk/gcc/testsuite/ChangeLog
