diff options
Diffstat (limited to 'gcc/config/s390/s390.c')
| -rw-r--r-- | gcc/config/s390/s390.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index f62d740..f8cf213 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -10630,13 +10630,12 @@ s390_class_max_nregs (enum reg_class rclass, machine_mode mode) return (GET_MODE_SIZE (mode) + reg_size - 1) / reg_size; } -/* Return TRUE if changing mode from FROM to TO should not be allowed - for register class CLASS. */ +/* Implement TARGET_CAN_CHANGE_MODE_CLASS. */ -int -s390_cannot_change_mode_class (machine_mode from_mode, - machine_mode to_mode, - enum reg_class rclass) +static bool +s390_can_change_mode_class (machine_mode from_mode, + machine_mode to_mode, + reg_class_t rclass) { machine_mode small_mode; machine_mode big_mode; @@ -10646,10 +10645,10 @@ s390_cannot_change_mode_class (machine_mode from_mode, if (reg_classes_intersect_p (VEC_REGS, rclass) && ((from_mode == V1TFmode && to_mode == TFmode) || (from_mode == TFmode && to_mode == V1TFmode))) - return 1; + return false; if (GET_MODE_SIZE (from_mode) == GET_MODE_SIZE (to_mode)) - return 0; + return true; if (GET_MODE_SIZE (from_mode) < GET_MODE_SIZE (to_mode)) { @@ -10672,14 +10671,14 @@ s390_cannot_change_mode_class (machine_mode from_mode, if (reg_classes_intersect_p (VEC_REGS, rclass) && (GET_MODE_SIZE (small_mode) < 8 || s390_class_max_nregs (VEC_REGS, big_mode) == 1)) - return 1; + return false; /* Likewise for access registers, since they have only half the word size on 64-bit. */ if (reg_classes_intersect_p (ACCESS_REGS, rclass)) - return 1; + return false; - return 0; + return true; } /* Return true if we use LRA instead of reload pass. */ @@ -16115,6 +16114,9 @@ s390_asan_shadow_offset (void) #undef TARGET_OPTION_RESTORE #define TARGET_OPTION_RESTORE s390_function_specific_restore +#undef TARGET_CAN_CHANGE_MODE_CLASS +#define TARGET_CAN_CHANGE_MODE_CLASS s390_can_change_mode_class + struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-s390.h" |