diff options
Diffstat (limited to 'gcc/tree-ssa-strlen.c')
| -rw-r--r-- | gcc/tree-ssa-strlen.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree-ssa-strlen.c b/gcc/tree-ssa-strlen.c index 721832e..1eaed66 100644 --- a/gcc/tree-ssa-strlen.c +++ b/gcc/tree-ssa-strlen.c @@ -971,12 +971,21 @@ valid_builtin_call (gimple *stmt) return false; tree callee = gimple_call_fndecl (stmt); + tree decl = builtin_decl_explicit (DECL_FUNCTION_CODE (callee)); + if (decl + && decl != callee + && !gimple_builtin_call_types_compatible_p (stmt, decl)) + return false; + switch (DECL_FUNCTION_CODE (callee)) { case BUILT_IN_MEMCMP: case BUILT_IN_MEMCMP_EQ: + case BUILT_IN_STRCMP: + case BUILT_IN_STRNCMP: case BUILT_IN_STRCHR: case BUILT_IN_STRLEN: + case BUILT_IN_STRNLEN: /* The above functions should be pure. Punt if they aren't. */ if (gimple_vdef (stmt) || gimple_vuse (stmt) == NULL_TREE) return false; @@ -991,10 +1000,16 @@ valid_builtin_call (gimple *stmt) case BUILT_IN_MEMSET: case BUILT_IN_STPCPY: case BUILT_IN_STPCPY_CHK: + case BUILT_IN_STPNCPY: + case BUILT_IN_STPNCPY_CHK: case BUILT_IN_STRCAT: case BUILT_IN_STRCAT_CHK: case BUILT_IN_STRCPY: case BUILT_IN_STRCPY_CHK: + case BUILT_IN_STRNCAT: + case BUILT_IN_STRNCAT_CHK: + case BUILT_IN_STRNCPY: + case BUILT_IN_STRNCPY_CHK: /* The above functions should be neither const nor pure. Punt if they aren't. */ if (gimple_vdef (stmt) == NULL_TREE || gimple_vuse (stmt) == NULL_TREE) |