On 2023-05-08 10:48 Kito Cheng <kito.ch...@gmail.com> wrote: > >diff --git a/gcc/config/riscv/zc.md b/gcc/config/riscv/zc.md >new file mode 100644 >index 00000000000..1c2f390269e >--- /dev/null >+++ b/gcc/config/riscv/zc.md >@@ -0,0 +1,55 @@ >... >+(define_insn "gpr_multi_pop" >+ [(unspec_volatile [(match_operand 0 "const_int_operand") >+ (match_operand 1 "const_int_operand")] >+ UNSPECV_GPR_MULTI_POP)] > >I would strongly suggest modeling the right memory and register access >here correctly instead of using unspec, >and same for other two patterns. > >That will help GCC know the semantics of this operation.
Sure, working on it. BR, Fei
