X64: port fvpromote to ISLE (#4242)

2022-06-07 17:18:23 -07:00
parent 088e568f22
commit bc3c4fa206
3 changed files with 12 additions and 7 deletions
--- a/cranelift/codegen/src/isa/x64/lower.rs
+++ b/cranelift/codegen/src/isa/x64/lower.rs
@@ -1045,13 +1045,7 @@ fn lower_insn_to_regs<C: LowerCtx<I = Inst>>(
        }

        Opcode::FvpromoteLow => {
-            let src = RegMem::reg(put_input_in_reg(ctx, inputs[0]));
-            let dst = get_output_reg(ctx, outputs[0]).only_reg().unwrap();
-            ctx.emit(Inst::xmm_unary_rm_r(
-                SseOpcode::Cvtps2pd,
-                RegMem::from(src),
-                dst,
-            ));
+            implemented_in_isle(ctx);
        }

        Opcode::Fdemote => {