Method i32_shift

winch/codegen/src/codegen/context.rs:51–78

Prepares arguments for emitting an i32 shift operation.

(&mut self, masm: &mut M, kind: ShiftKind)

impl<'a> CodeGenContext<'a, Emission> {
    /// Prepares arguments for emitting an i32 shift operation.
    pub fn i32_shift<M>(&mut self, masm: &mut M, kind: ShiftKind) -> Result<()>
    where
        M: MacroAssembler,
    {
        let top = self
            .stack
            .peek()
            .ok_or_else(|| CodeGenError::missing_values_in_stack())?;

        if top.is_i32_const() {
            let val = self
                .stack
                .pop_i32_const()
                .ok_or_else(|| CodeGenError::missing_values_in_stack())?;
            let typed_reg = self.pop_to_reg(masm, None)?;
            masm.shift_ir(
                writable!(typed_reg.reg),
                Imm::i32(val),
                typed_reg.reg,
                kind,
                OperandSize::S32,
            )?;
            self.stack.push(typed_reg.into());
        } else {
            masm.shift(self, kind, OperandSize::S32)?;
        }
        Ok(())
    }

    /// Prepares arguments for emitting an i64 binary operation.
    pub fn i64_shift<M>(&mut self, masm: &mut M, kind: ShiftKind) -> Result<()>