https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90989
--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> --- Author: msebor Date: Fri Aug 2 16:57:19 2019 New Revision: 274021 URL: https://gcc.gnu.org/viewcvs?rev=274021&root=gcc&view=rev Log: Backport from mainline PR tree-optimization/90989 - incorrrect strlen result after second strcpy into the same destination gcc/ChangeLog: PR tree-optimization/90989 * tree-ssa-strlen.c (handle_char_store): Constrain a single character optimization to just single character stores. gcc/testsuite/ChangeLog: PR tree-optimization/90989 * gcc.dg/strlenopt-26.c: Exit with test result status. * gcc.dg/strlenopt-67.c: New test. Added: branches/gcc-9-branch/gcc/testsuite/gcc.dg/strlenopt-67.c Modified: branches/gcc-9-branch/gcc/ChangeLog branches/gcc-9-branch/gcc/testsuite/ChangeLog branches/gcc-9-branch/gcc/testsuite/gcc.dg/strlenopt-26.c branches/gcc-9-branch/gcc/tree-ssa-strlen.c
