https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90020
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Apr 11 07:34:20 2019 New Revision: 270275 URL: https://gcc.gnu.org/viewcvs?rev=270275&root=gcc&view=rev Log: 2019-04-11 Richard Biener <rguent...@suse.de> PR tree-optimization/90020 * tree-ssa-sccvn.c (vn_reference_may_trap): New function. * tree-ssa-sccvn.h (vn_reference_may_trap): Declare. * tree-ssa-pre.c (compute_avail): Use it to not put possibly trapping references after a call that might not return into EXP_GEN. * gcse.c (compute_hash_table_work): Do not elide marking a block containing a call if the call might not return. * gcc.dg/torture/pr90020.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr90020.c Modified: trunk/gcc/ChangeLog trunk/gcc/gcse.c trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-pre.c trunk/gcc/tree-ssa-sccvn.c trunk/gcc/tree-ssa-sccvn.h
