diff options
Diffstat (limited to 'gcc/tree-object-size.c')
| -rw-r--r-- | gcc/tree-object-size.c | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/gcc/tree-object-size.c b/gcc/tree-object-size.c index d45f50d4173..14cb435f07f 100644 --- a/gcc/tree-object-size.c +++ b/gcc/tree-object-size.c @@ -464,34 +464,17 @@ alloc_object_size (const gcall *call, int object_size_type) static tree pass_through_call (const gcall *call) { - tree callee = gimple_call_fndecl (call); + unsigned rf = gimple_call_return_flags (call); + if (rf & ERF_RETURNS_ARG) + { + unsigned argnum = rf & ERF_RETURN_ARG_MASK; + if (argnum < gimple_call_num_args (call)) + return gimple_call_arg (call, argnum); + } - if (callee - && DECL_BUILT_IN_CLASS (callee) == BUILT_IN_NORMAL) - switch (DECL_FUNCTION_CODE (callee)) - { - case BUILT_IN_MEMCPY: - case BUILT_IN_MEMMOVE: - case BUILT_IN_MEMSET: - case BUILT_IN_STRCPY: - case BUILT_IN_STRNCPY: - case BUILT_IN_STRCAT: - case BUILT_IN_STRNCAT: - case BUILT_IN_MEMCPY_CHK: - case BUILT_IN_MEMMOVE_CHK: - case BUILT_IN_MEMSET_CHK: - case BUILT_IN_STRCPY_CHK: - case BUILT_IN_STRNCPY_CHK: - case BUILT_IN_STPNCPY_CHK: - case BUILT_IN_STRCAT_CHK: - case BUILT_IN_STRNCAT_CHK: - case BUILT_IN_ASSUME_ALIGNED: - if (gimple_call_num_args (call) >= 1) - return gimple_call_arg (call, 0); - break; - default: - break; - } + /* __builtin_assume_aligned is intentionally not marked RET1. */ + if (gimple_call_builtin_p (call, BUILT_IN_ASSUME_ALIGNED)) + return gimple_call_arg (call, 0); return NULL_TREE; } |