diff options
Diffstat (limited to 'gcc/config/pdp11/pdp11.c')
| -rw-r--r-- | gcc/config/pdp11/pdp11.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/config/pdp11/pdp11.c b/gcc/config/pdp11/pdp11.c index 5364b47451c..4fdb077479d 100644 --- a/gcc/config/pdp11/pdp11.c +++ b/gcc/config/pdp11/pdp11.c @@ -246,6 +246,9 @@ static bool pdp11_scalar_mode_supported_p (scalar_mode); #undef TARGET_SECONDARY_MEMORY_NEEDED #define TARGET_SECONDARY_MEMORY_NEEDED pdp11_secondary_memory_needed + +#undef TARGET_CAN_CHANGE_MODE_CLASS +#define TARGET_CAN_CHANGE_MODE_CLASS pdp11_can_change_mode_class /* A helper function to determine if REGNO should be saved in the current function's stack frame. */ @@ -1372,20 +1375,20 @@ legitimate_const_double_p (rtx address) return 0; } -/* Implement CANNOT_CHANGE_MODE_CLASS. */ -bool -pdp11_cannot_change_mode_class (machine_mode from, - machine_mode to, - enum reg_class rclass) +/* Implement TARGET_CAN_CHANGE_MODE_CLASS. */ +static bool +pdp11_can_change_mode_class (machine_mode from, + machine_mode to, + reg_class_t rclass) { /* Also, FPU registers contain a whole float value and the parts of it are not separately accessible. So we disallow all mode changes involving FPRs. */ if (FLOAT_MODE_P (from) != FLOAT_MODE_P (to)) - return true; + return false; - return reg_classes_intersect_p (FPU_REGS, rclass); + return !reg_classes_intersect_p (FPU_REGS, rclass); } /* TARGET_PREFERRED_RELOAD_CLASS |