https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120154
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jeff Law <l...@gcc.gnu.org>: https://gcc.gnu.org/g:49c44911df72f55e2004ffa9f5eb362de29ca188 commit r16-457-g49c44911df72f55e2004ffa9f5eb362de29ca188 Author: Jeff Law <j...@ventanamicro.com> Date: Wed May 7 15:06:58 2025 -0600 [RISC-V][PR target/120137][PR target/120154] Don't create out-of-range permutation constants To make hashing sensible we canonicalize constant vectors in the hash table so that their first entry always has the value zero. That normalization can result in a value that can't be represented in the element mode. So before entering anything into the hash table we need to verify the normalized entries will fit into the element's mode. This fixes both 120137 and its duplicate 120154. This has been tested in my tester. I'm just waiting for the pre-commit tester to render its verdict. PR target/120137 PR target/120154 gcc/ * config/riscv/riscv-vect-permconst.cc (process_bb): Verify each canonicalized element fits into the vector element mode. gcc/testsuite/ * gcc.target/riscv/pr120137.c: New test. * gcc.target/riscv/pr120154.c: New test.
