diff options
Diffstat (limited to 'gcc/config/alpha/alpha.c')
| -rw-r--r-- | gcc/config/alpha/alpha.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 28fe467..bb81f8e 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -1689,6 +1689,20 @@ alpha_secondary_reload (bool in_p, rtx x, reg_class_t rclass_i, return NO_REGS; } +/* Implement TARGET_SECONDARY_MEMORY_NEEDED. + + If we are copying between general and FP registers, we need a memory + location unless the FIX extension is available. */ + +static bool +alpha_secondary_memory_needed (machine_mode, reg_class_t class1, + reg_class_t class2) +{ + return (!TARGET_FIX + && ((class1 == FLOAT_REGS && class2 != FLOAT_REGS) + || (class2 == FLOAT_REGS && class1 != FLOAT_REGS))); +} + /* Implement TARGET_SECONDARY_MEMORY_NEEDED_MODE. If MODE is floating-point, use it. Otherwise, widen to a word like the default. This is needed because we always store integers in FP registers in @@ -10077,6 +10091,8 @@ alpha_modes_tieable_p (machine_mode mode1, machine_mode mode2) #undef TARGET_SECONDARY_RELOAD #define TARGET_SECONDARY_RELOAD alpha_secondary_reload +#undef TARGET_SECONDARY_MEMORY_NEEDED +#define TARGET_SECONDARY_MEMORY_NEEDED alpha_secondary_memory_needed #undef TARGET_SECONDARY_MEMORY_NEEDED_MODE #define TARGET_SECONDARY_MEMORY_NEEDED_MODE alpha_secondary_memory_needed_mode |