diff options
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 6f73aea..4949b89 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -5305,20 +5305,25 @@ choose_reload_regs (chain) { enum reg_class class = rld[r].class, last_class; rtx last_reg = reg_last_reload_reg[regno]; + enum machine_mode need_mode; i = REGNO (last_reg) + word; last_class = REGNO_REG_CLASS (i); + + need_mode = smallest_mode_for_size ((word+1) * UNITS_PER_WORD, + GET_MODE_CLASS (mode)); + if ( -#ifdef CLASS_CANNOT_CHANGE_SIZE +#ifdef CLASS_CANNOT_CHANGE_MODE (TEST_HARD_REG_BIT - (reg_class_contents[CLASS_CANNOT_CHANGE_SIZE], i) - ? (GET_MODE_SIZE (GET_MODE (last_reg)) - == GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) + (reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE], i) + ? ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (last_reg), + need_mode) : (GET_MODE_SIZE (GET_MODE (last_reg)) - >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD)) + >= GET_MODE_SIZE (need_mode))) #else (GET_MODE_SIZE (GET_MODE (last_reg)) - >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) + >= GET_MODE_SIZE (need_mode)) #endif && reg_reloaded_contents[i] == regno && TEST_HARD_REG_BIT (reg_reloaded_valid, i) |