LA32 atomic instructions support const_imm16_operand, so can't add TARGET_64BIT
for const_imm16_operand constraint.
gcc/ChangeLog:
* config/loongarch/loongarch.cc (loongarch_valid_offset_p): Disable
const_imm16_operand on LA32.
---
gcc/config/loongarch/loongarch.cc | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index adc37b53d48..64acd44ef96 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -2246,7 +2246,9 @@ loongarch_valid_offset_p (rtx x, machine_mode mode)
or check that X is a signed 16-bit number
and offset 4 byte aligned. */
if (!(const_arith_operand (x, Pmode)
- || ((mode == E_SImode || mode == E_DImode)
+ /* FIXME: la32 atomic insns support 16-bit imm. */
+ || (TARGET_64BIT
+ && (mode == E_SImode || mode == E_DImode)
&& const_imm16_operand (x, Pmode)
&& (loongarch_signed_immediate_p (INTVAL (x), 14, 2)))))
return false;
--
2.34.1
