diff options
Diffstat (limited to 'gcc/stmt.c')
| -rw-r--r-- | gcc/stmt.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/gcc/stmt.c b/gcc/stmt.c index 450b0da7c1a..2399b6f83bf 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -3016,6 +3016,12 @@ expand_return (retval) rtx result_val = expand_expr (retval_rhs, NULL_RTX, VOIDmode, 0); enum machine_mode tmpmode, result_reg_mode; + if (bytes == 0) + { + expand_null_return (); + return; + } + /* Structures whose size is not a multiple of a word are aligned to the least significant byte (to the right). On a BYTES_BIG_ENDIAN machine, this means we must skip the empty high order bytes when @@ -3063,15 +3069,12 @@ expand_return (retval) /* Find the smallest integer mode large enough to hold the entire structure and use that mode instead of BLKmode on the USE insn for the return register. */ - bytes = int_size_in_bytes (TREE_TYPE (retval_rhs)); for (tmpmode = GET_CLASS_NARROWEST_MODE (MODE_INT); tmpmode != VOIDmode; tmpmode = GET_MODE_WIDER_MODE (tmpmode)) - { - /* Have we found a large enough mode? */ - if (GET_MODE_SIZE (tmpmode) >= bytes) - break; - } + /* Have we found a large enough mode? */ + if (GET_MODE_SIZE (tmpmode) >= bytes) + break; /* No suitable mode found. */ if (tmpmode == VOIDmode) |
