diff options
Diffstat (limited to 'gcc/config/bfin/bfin.c')
| -rw-r--r-- | gcc/config/bfin/bfin.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/config/bfin/bfin.c b/gcc/config/bfin/bfin.c index 7572527a1e5..7bf8c4267a2 100644 --- a/gcc/config/bfin/bfin.c +++ b/gcc/config/bfin/bfin.c @@ -2146,6 +2146,21 @@ bfin_hard_regno_mode_ok (unsigned int regno, machine_mode mode) return TEST_HARD_REG_BIT (reg_class_contents[MOST_REGS], regno); } +/* Implement TARGET_MODES_TIEABLE_P. */ + +static bool +bfin_modes_tieable_p (machine_mode mode1, machine_mode mode2) +{ + return (mode1 == mode2 + || ((GET_MODE_CLASS (mode1) == MODE_INT + || GET_MODE_CLASS (mode1) == MODE_FLOAT) + && (GET_MODE_CLASS (mode2) == MODE_INT + || GET_MODE_CLASS (mode2) == MODE_FLOAT) + && mode1 != BImode && mode2 != BImode + && GET_MODE_SIZE (mode1) <= UNITS_PER_WORD + && GET_MODE_SIZE (mode2) <= UNITS_PER_WORD)); +} + /* Implements target hook vector_mode_supported_p. */ static bool @@ -5850,4 +5865,7 @@ bfin_conditional_register_usage (void) #undef TARGET_HARD_REGNO_MODE_OK #define TARGET_HARD_REGNO_MODE_OK bfin_hard_regno_mode_ok +#undef TARGET_MODES_TIEABLE_P +#define TARGET_MODES_TIEABLE_P bfin_modes_tieable_p + struct gcc_target targetm = TARGET_INITIALIZER; |