This implements HARD_REGNO_CALL_PART_CLOBBERED.
Ok to apply?
Johann
PR target/53065
* config/avr/avr.h (HARD_REGNO_CALL_PART_CLOBBERED): New hook define.
Index: config/avr/avr.h
===================================================================
--- config/avr/avr.h (revision 186600)
+++ config/avr/avr.h (working copy)
@@ -394,6 +394,11 @@ enum reg_class {
#define REGNO_OK_FOR_INDEX_P(NUM) 0
+#define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE) \
+ (((REGNO) < 18 && (REGNO) + GET_MODE_SIZE (MODE) > 18) \
+ || ((REGNO) < REG_Y && (REGNO) + GET_MODE_SIZE (MODE) > REG_Y) \
+ || ((REGNO) < REG_Z && (REGNO) + GET_MODE_SIZE (MODE) > REG_Z))
+
#define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true
#define STACK_PUSH_CODE POST_DEC
