https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #15 from Marc Glisse <glisse at gcc dot gnu.org> --- Author: glisse Date: Tue Jun 24 18:50:00 2014 New Revision: 211956 URL: https://gcc.gnu.org/viewcvs?rev=211956&root=gcc&view=rev Log: 2014-06-24 Marc Glisse <marc.gli...@inria.fr> PR tree-optimization/57742 gcc/ * tree-ssa-strlen.c (get_string_length): Ignore malloc. (handle_builtin_malloc, handle_builtin_memset): New functions. (strlen_optimize_stmt): Call them. * passes.def: Move strlen after loop+dom but before vrp. gcc/testsuite/ * g++.dg/tree-ssa/calloc.C: New testcase. * gcc.dg/tree-ssa/calloc-1.c: Likewise. * gcc.dg/tree-ssa/calloc-2.c: Likewise. * gcc.dg/strlenopt-9.c: Adapt. Added: trunk/gcc/testsuite/g++.dg/tree-ssa/calloc.C trunk/gcc/testsuite/gcc.dg/tree-ssa/calloc-1.c trunk/gcc/testsuite/gcc.dg/tree-ssa/calloc-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/passes.def trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/strlenopt-9.c trunk/gcc/tree-ssa-strlen.c