In r16-4619, the scalar mode is not handled, which causes the
compilation of test cases such as pr111414-1.c to fail in ICE.
PR target/122477
gcc/ChangeLog:
* config/loongarch/loongarch.cc
(loongarch_split_reduction): Added handling of scalar mode.
---
gcc/config/loongarch/loongarch.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 9fb0773d59e..fea0bb20ab1 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -4192,7 +4192,8 @@ loongarch_rtx_costs (rtx x, machine_mode mode, int
outer_code,
machine_mode
loongarch_split_reduction (machine_mode mode)
{
- if (LSX_SUPPORTED_MODE_P (mode))
+ if (!targetm.vector_mode_supported_p (mode)
+ || LSX_SUPPORTED_MODE_P (mode))
return mode;
return mode_for_vector (as_a <scalar_mode> (GET_MODE_INNER (mode)),
--
2.34.1
