On Tue, Jul 18, 2017 at 10:00 AM, Bin Cheng <bin.ch...@arm.com> wrote: > Hi, > I removed unsafe loop optimization on TREE level last year, so GCC doesn't do > unsafe > loop optimizations on TREE now. All "unsafe loop optimizations" warnings > reported by > TREE optimizers are simply missed optimizations. This patch turns such > warning into > missed optimization messages. I didn't change when this will be dumped, for > now it is > when called from ivopts. > Bootstrap and test on x86_64 and AArch64. Is it OK?
Ok but can you change the testcase to not scan the ivopts dump but use -fopt-info-loop-missed? You should be able to match the output with dg-message. Thanks, Richard. > Thanks, > bin > 2017-07-13 Bin Cheng <bin.ch...@arm.com> > > PR target/81408 > * tree-ssa-loop-niter.c (number_of_iterations_exit): Dump missed > optimization for loop niter analysis. > > gcc/testsuite/ChangeLog > 2017-07-13 Bin Cheng <bin.ch...@arm.com> > > PR target/81408 > * g++.dg/tree-ssa/pr81408.C: New. > * gcc.dg/tree-ssa/pr19210-1.c: Check dump message rather than warning.