On Tue, 27 Dec 2022 10:24:10 PST (-0800), gcc-patches@gcc.gnu.org wrote:
On 12/12/22 23:49, shi...@iscas.ac.cn wrote:From: Liao Shihua <shi...@iscas.ac.cn> This patch support rv64 insn in ilp32 ABI. It was inspired by aarch64 both support 64-bit and 32-bit ABI with the same set of instructions. gcc/ChangeLog: * config.gcc: Implememt ilp32* with rv64*. * config/riscv/riscv.cc (riscv_option_override): Remove the constraint between RV64 and ILP32. * config/riscv/riscv.h (TARGET_ILP32): Define TARGET_ILP32 with riscv_abi. (POINTER_SIZE):POINTER_SIZE will change with TARGET_ILP32. (Pmode):Likewise. * config/riscv/riscv.md: Convert split mode with Pmode and change mode form Xmode to Pmode in stack_tie.This is a new feature and thus I think we should defer to gcc-14 unless there is a compelling need.
I agree. This is a pretty big one with a lot of ABI-related complications, so let's just play it safe.
