diff options
Diffstat (limited to 'gcc/config/pa/pa64-regs.h')
| -rw-r--r-- | gcc/config/pa/pa64-regs.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/config/pa/pa64-regs.h b/gcc/config/pa/pa64-regs.h index 9d53adc..a061d2f 100644 --- a/gcc/config/pa/pa64-regs.h +++ b/gcc/config/pa/pa64-regs.h @@ -229,9 +229,15 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS, {0x00000000, 0x10000000}, /* SHIFT_REGS */ \ {0xfffffffe, 0x1fffffff}} /* ALL_REGS */ -/* This may not actually be necessary anymore. But until I can prove +/* If defined, gives a class of registers that cannot be used as the + operand of a SUBREG that changes the mode of the object illegally. */ +/* ??? This may not actually be necessary anymore. But until I can prove otherwise it will stay. */ -#define CLASS_CANNOT_CHANGE_SIZE (FP_REGS) +#define CLASS_CANNOT_CHANGE_MODE (FP_REGS) + +/* Defines illegal mode changes for CLASS_CANNOT_CHANGE_MODE. */ +#define CLASS_CANNOT_CHANGE_MODE_P(FROM,TO) \ + (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)) /* The same information, inverted: Return the class number of the smallest class containing |