https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119114
--- Comment #23 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Robin Dapp <rd...@gcc.gnu.org>: https://gcc.gnu.org/g:b58a0af4e2e28b395a3cb4b7283f16f05c0cf3c8 commit r15-8084-gb58a0af4e2e28b395a3cb4b7283f16f05c0cf3c8 Author: Robin Dapp <rd...@ventanamicro.com> Date: Tue Mar 11 14:30:48 2025 +0100 RISC-V: Mask values before initializing bitmask vector [PR119114]. In the somewhat convoluted vector code of PR119114 we extract a <signed-boolean:1> mask value from a vector mask. After some middle-end simplifications we end up with a value of -2. Its lowest bit is correctly unset representing "false". When initializing a bitmak vector from values we compare the full value/register against zero instead of just the last bit. This causes erroneous mask values. This patch masks the values by & 0x1 before comparing against 0. PR target/119114 gcc/ChangeLog: * config/riscv/autovec.md: Apply & 0x1 mask when initializing bitmask vector. gcc/testsuite/ChangeLog: * gcc.target/riscv/rvv/autovec/pr119114.c: New test.
