Disable preopt at opt_level=fastest.

2018-03-28 16:16:35 -07:00
parent 57cd69d8b4
commit d566faa8fb
1 changed files with 3 additions and 1 deletions
--- a/lib/cretonne/src/context.rs
+++ b/lib/cretonne/src/context.rs
@@ -88,7 +88,9 @@ impl Context {
        self.verify_if(isa)?;

        self.compute_cfg();
+        if isa.flags().opt_level() != OptLevel::Fastest {
            self.preopt(isa)?;
+        }
        self.legalize(isa)?;
        if isa.flags().opt_level() == OptLevel::Best {
            self.compute_domtree();