Method legalize

cranelift/codegen/src/context.rs:297–307

Run the legalizer for `isa` on the function.

(&mut self, isa: &dyn TargetIsa)

    /// Run the legalizer for `isa` on the function.
    pub fn legalize(&mut self, isa: &dyn TargetIsa) -> CodegenResult<()> {
        // Legalization invalidates the domtree and loop_analysis by mutating the CFG.
        // TODO: Avoid doing this when legalization doesn't actually mutate the CFG.
        self.domtree.clear();
        self.loop_analysis.clear();
        self.cfg.clear();

        // Run some specific legalizations only.
        simple_legalize(&mut self.func, isa);
        self.verify_if(isa)
    }

    /// Compute the control flow graph.
    pub fn compute_cfg(&mut self) {