diff options
Diffstat (limited to 'gcc/config/sparc/sparc.c')
| -rw-r--r-- | gcc/config/sparc/sparc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c index 469b03d..aa66f24 100644 --- a/gcc/config/sparc/sparc.c +++ b/gcc/config/sparc/sparc.c @@ -672,6 +672,8 @@ static void sparc_print_operand_address (FILE *, machine_mode, rtx); static reg_class_t sparc_secondary_reload (bool, rtx, reg_class_t, machine_mode, secondary_reload_info *); +static bool sparc_secondary_memory_needed (machine_mode, reg_class_t, + reg_class_t); static machine_mode sparc_secondary_memory_needed_mode (machine_mode); static scalar_int_mode sparc_cstore_mode (enum insn_code icode); static void sparc_atomic_assign_expand_fenv (tree *, tree *, tree *); @@ -860,6 +862,8 @@ char sparc_hard_reg_printed[8]; #undef TARGET_SECONDARY_RELOAD #define TARGET_SECONDARY_RELOAD sparc_secondary_reload +#undef TARGET_SECONDARY_MEMORY_NEEDED +#define TARGET_SECONDARY_MEMORY_NEEDED sparc_secondary_memory_needed #undef TARGET_SECONDARY_MEMORY_NEEDED_MODE #define TARGET_SECONDARY_MEMORY_NEEDED_MODE sparc_secondary_memory_needed_mode @@ -13053,6 +13057,21 @@ sparc_secondary_reload (bool in_p, rtx x, reg_class_t rclass_i, return NO_REGS; } +/* Implement TARGET_SECONDARY_MEMORY_NEEDED. + + On SPARC when not VIS3 it is not possible to directly move data + between GENERAL_REGS and FP_REGS. */ + +static bool +sparc_secondary_memory_needed (machine_mode mode, reg_class_t class1, + reg_class_t class2) +{ + return ((FP_REG_CLASS_P (class1) != FP_REG_CLASS_P (class2)) + && (! TARGET_VIS3 + || GET_MODE_SIZE (mode) > 8 + || GET_MODE_SIZE (mode) < 4)); +} + /* Implement TARGET_SECONDARY_MEMORY_NEEDED_MODE. get_secondary_mem widens its argument to BITS_PER_WORD which loses on v9 |