diff options
Diffstat (limited to 'gcc/config/sh/sh.c')
| -rw-r--r-- | gcc/config/sh/sh.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index 2bd917a..74327aa 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -1038,8 +1038,16 @@ sh_print_operand_address (FILE *stream, machine_mode /*mode*/, rtx x) int base_num = true_regnum (base); int index_num = true_regnum (index); - fprintf (stream, "@(r0,%s)", - reg_names[MAX (base_num, index_num)]); + /* If base or index is R0, make sure that it comes first. + Usually one of them will be R0, but the order might be wrong. + If neither base nor index are R0 it's an error and we just + pass it on to the assembler. This avoids silent wrong code + bugs. */ + if (base_num == 0 && index_num != 0) + std::swap (base_num, index_num); + + fprintf (stream, "@(%s,%s)", reg_names[index_num], + reg_names[base_num]); break; } |