https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109104
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kito Cheng <k...@gcc.gnu.org>: https://gcc.gnu.org/g:40fc8e3d4f600d89e6b065d6f12db7a816269c8f commit r13-7138-g40fc8e3d4f600d89e6b065d6f12db7a816269c8f Author: Yanzhang Wang <yanzhang.w...@intel.com> Date: Tue Apr 11 19:37:48 2023 +0800 RISC-V: Fix regression of -fzero-call-used-regs=all [PR109104] This patch registers a riscv specific function to TARGET_ZERO_CALL_USED_REGS instead of default in targhooks.cc. It will clean gpr and vector relevant registers. gcc/ChangeLog: PR target/109104 * config/riscv/riscv-protos.h (emit_hard_vlmax_vsetvl): New. * config/riscv/riscv-v.cc (emit_hard_vlmax_vsetvl): New. (emit_vlmax_vsetvl): Use emit_hard_vlmax_vsetvl. * config/riscv/riscv.cc (vector_zero_call_used_regs): New. (riscv_zero_call_used_regs): New. (TARGET_ZERO_CALL_USED_REGS): New. gcc/testsuite/ChangeLog: PR target/109104 * gcc.target/riscv/zero-scratch-regs-1.c: New test. * gcc.target/riscv/zero-scratch-regs-2.c: New test. * gcc.target/riscv/zero-scratch-regs-3.c: New test. Signed-off-by: Yanzhang Wang <yanzhang.w...@intel.com> Co-authored-by: Pan Li <pan2...@intel.com> Co-authored-by: Ju-Zhe Zhong <juzhe.zh...@rivai.ai> Co-authored-by: Kito Cheng <kito.ch...@sifive.com>
