diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/builtins.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/builtins.cc b/gcc/builtins.cc index 8026e20..ed0efd5 100644 --- a/gcc/builtins.cc +++ b/gcc/builtins.cc @@ -7178,8 +7178,8 @@ inline_expand_builtin_bytecmp (tree exp, rtx target) bool is_ncmp = (fcode == BUILT_IN_STRNCMP || fcode == BUILT_IN_MEMCMP); /* Do NOT apply this inlining expansion when optimizing for size or - optimization level below 2. */ - if (optimize < 2 || optimize_insn_for_size_p ()) + optimization level below 2 or if unused *cmp hasn't been DCEd. */ + if (optimize < 2 || optimize_insn_for_size_p () || target == const0_rtx) return NULL_RTX; gcc_checking_assert (fcode == BUILT_IN_STRCMP |