https://gcc.gnu.org/g:f59cabadd0b678d744ba1f185ad215f561378a4e
commit r16-4943-gf59cabadd0b678d744ba1f185ad215f561378a4e Author: Lulu Cheng <[email protected]> Date: Wed Oct 29 09:21:58 2025 +0800 LoongArch: Fix ICE caused by loongarch_split_reduction [PR122477]. 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. Diff: --- 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 f7ce3aa2999a..1dce56e46fd1 100644 --- a/gcc/config/loongarch/loongarch.cc +++ b/gcc/config/loongarch/loongarch.cc @@ -4234,7 +4234,8 @@ 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 (!VECTOR_MODE_P (mode) + || LSX_SUPPORTED_MODE_P (mode)) return mode; return mode_for_vector (as_a <scalar_mode> (GET_MODE_INNER (mode)),
