Method egraph_pass

cranelift/codegen/src/context.rs:365–401

Run optimizations via the egraph infrastructure.

(
        &mut self,
        fisa: FOI,
        ctrl_plane: &mut ControlPlane,
    )

    /// Run optimizations via the egraph infrastructure.
    pub fn egraph_pass<'a, FOI>(
        &mut self,
        fisa: FOI,
        ctrl_plane: &mut ControlPlane,
    ) -> CodegenResult<()>
    where
        FOI: Into<FlagsOrIsa<'a>>,
    {
        let _tt = timing::egraph();

        trace!(
            "About to optimize with egraph phase:\n{}",
            self.func.display()
        );
        let fisa = fisa.into();
        self.compute_loop_analysis();
        let mut alias_analysis = AliasAnalysis::new(&self.func, &self.domtree);
        let mut pass = EgraphPass::new(
            &mut self.func,
            &self.domtree,
            &self.loop_analysis,
            &mut alias_analysis,
            ctrl_plane,
            &mut self.cfg,
        );
        pass.run();
        log::debug!("egraph stats: {:?}", pass.stats);
        trace!("After egraph optimization:\n{}", self.func.display());

        // Branch optimizations can invalidate these; recompute them.
        self.compute_cfg();
        self.compute_domtree();

        self.verify_if(fisa)?;

        Ok(())
    }
}