merged.
On 4/30/21 9:02 PM, Geng Qi wrote:
gcc/ChangeLog:
* config/csky/csky.c (csky_can_change_mode_class): Delete.
For csky, HF/SF mode use the low bits of VREGS.
---
gcc/config/csky/csky.c | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/gcc/config/csky/csky.c b/gcc/config/csky/csky.c
index 7f2af82..67cdf9c 100644
--- a/gcc/config/csky/csky.c
+++ b/gcc/config/csky/csky.c
@@ -611,9 +611,6 @@ csky_default_logical_op_non_short_circuit (void)
#undef TARGET_MODES_TIEABLE_P
#define TARGET_MODES_TIEABLE_P csky_modes_tieable_p
-#undef TARGET_CAN_CHANGE_MODE_CLASS
-#define TARGET_CAN_CHANGE_MODE_CLASS csky_can_change_mode_class
-
#undef TARGET_CONDITIONAL_REGISTER_USAGE
#define TARGET_CONDITIONAL_REGISTER_USAGE csky_conditional_register_usage
@@ -2373,19 +2370,6 @@ csky_modes_tieable_p (machine_mode mode1, machine_mode mode2)
&& (mode1 == DFmode || mode2 == DFmode));
}
-/* Implement TARGET_CAN_CHANGE_MODE_CLASS.
- V_REG registers can't do subreg as all values are reformatted to
- internal precision. */
-
-static bool
-csky_can_change_mode_class (machine_mode from,
- machine_mode to,
- reg_class_t rclass)
-{
- return (GET_MODE_SIZE (from) == GET_MODE_SIZE (to)
- || !reg_classes_intersect_p (V_REGS, rclass));
-}
-
/* Implement TARGET_CLASS_LIKELY_SPILLED_P.
We need to define this for MINI_REGS when we only use r0 - r7.
Otherwise we can end up using r0-r4 for function arguments, and don't
