diff options
Diffstat (limited to 'gcc/config/alpha/alpha.c')
| -rw-r--r-- | gcc/config/alpha/alpha.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index bcb9499..d582d94 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -9907,6 +9907,17 @@ alpha_hard_regno_mode_ok (unsigned int regno, machine_mode mode) || mode == DCmode); return true; } + +/* Implement TARGET_MODES_TIEABLE_P. This asymmetric test is true when + MODE1 could be put in an FP register but MODE2 could not. */ + +static bool +alpha_modes_tieable_p (machine_mode mode1, machine_mode mode2) +{ + return (alpha_hard_regno_mode_ok (32, mode1) + ? alpha_hard_regno_mode_ok (32, mode2) + : true); +} /* Initialize the GCC target structure. */ #if TARGET_ABI_OPEN_VMS @@ -10104,6 +10115,9 @@ alpha_hard_regno_mode_ok (unsigned int regno, machine_mode mode) #undef TARGET_HARD_REGNO_MODE_OK #define TARGET_HARD_REGNO_MODE_OK alpha_hard_regno_mode_ok +#undef TARGET_MODES_TIEABLE_P +#define TARGET_MODES_TIEABLE_P alpha_modes_tieable_p + struct gcc_target targetm = TARGET_INITIALIZER; |