https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112476
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Xi Ruoyao <xry...@gcc.gnu.org>: https://gcc.gnu.org/g:b88500e0bc1e9e3a396ba764f9b701d22a76818f commit r14-5374-gb88500e0bc1e9e3a396ba764f9b701d22a76818f Author: Xi Ruoyao <xry...@xry111.site> Date: Sun Nov 12 00:55:13 2023 +0800 LoongArch: Use simplify_gen_subreg instead of gen_rtx_SUBREG in loongarch_expand_vec_cond_mask_expr [PR112476] GCC internal says: 'subreg's of 'subreg's are not supported. Using 'simplify_gen_subreg' is the recommended way to avoid this problem. Unfortunately loongarch_expand_vec_cond_mask_expr might create nested subreg under certain circumstances, causing an ICE. Use simplify_gen_subreg as the internal document suggests. gcc/ChangeLog: PR target/112476 * config/loongarch/loongarch.cc (loongarch_expand_vec_cond_mask_expr): Call simplify_gen_subreg instead of gen_rtx_SUBREG. gcc/testsuite/ChangeLog: PR target/112476 * gcc.target/loongarch/pr112476-1.c: New test. * gcc.target/loongarch/pr112476-2.c: New test.
