Hi. This is typo I did when MPX was removed. I'm moving back hunk with BUILT_IN_STPCPY_CHK.
Ready after testing? Martin gcc/ChangeLog: 2018-06-11 Martin Liska <mli...@suse.cz> PR tree-optimization/86089 * tree-ssa-strlen.c (get_string_length): Move back removed hunk. gcc/testsuite/ChangeLog: 2018-06-11 Martin Liska <mli...@suse.cz> PR tree-optimization/86089 * gcc.dg/tree-ssa/pr86089.c: New test. --- gcc/testsuite/gcc.dg/tree-ssa/pr86089.c | 13 +++++++++++++ gcc/tree-ssa-strlen.c | 6 +++++- 2 files changed, 18 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/pr86089.c
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr86089.c b/gcc/testsuite/gcc.dg/tree-ssa/pr86089.c new file mode 100644 index 00000000000..58d542949cb --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr86089.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -Wall" } */ + +extern char* stpcpy (char*, const char*); + +int f (char* s) +{ + char a[32]; + + __builtin___strcpy_chk (a, s, __builtin_object_size (a, 1)); + + return __builtin_strlen (a); +} diff --git a/gcc/tree-ssa-strlen.c b/gcc/tree-ssa-strlen.c index 804905d09a2..50562144078 100644 --- a/gcc/tree-ssa-strlen.c +++ b/gcc/tree-ssa-strlen.c @@ -617,8 +617,12 @@ get_string_length (strinfo *si) lhs = NULL_TREE; /* FALLTHRU */ case BUILT_IN_STRCPY: + case BUILT_IN_STRCPY_CHK: gcc_assert (builtin_decl_implicit_p (BUILT_IN_STPCPY)); - fn = builtin_decl_implicit (BUILT_IN_STPCPY); + if (gimple_call_num_args (stmt) == 2) + fn = builtin_decl_implicit (BUILT_IN_STPCPY); + else + fn = builtin_decl_explicit (BUILT_IN_STPCPY_CHK); gcc_assert (lhs == NULL_TREE); if (dump_file && (dump_flags & TDF_DETAILS) != 0) {