Implement IntoIterator for PrimaryMap.

This makes iterating through a `PrimaryMap` more consistent with iterating through a `Vec`.
2018-06-07 15:32:11 -07:00
parent fdf89edbfe
commit 00d7d3a774
4 changed files with 32 additions and 8 deletions
--- a/lib/codegen/src/dce.rs
+++ b/lib/codegen/src/dce.rs
@@ -44,7 +44,7 @@ pub fn do_dce(func: &mut Function, domtree: &mut DominatorTree) {
    let mut live = Vec::with_capacity(func.dfg.num_values());
    live.resize(func.dfg.num_values(), false);

-    for &ebb in domtree.cfg_postorder().iter() {
+    for &ebb in domtree.cfg_postorder() {
        let mut pos = FuncCursor::new(func).at_bottom(ebb);
        while let Some(inst) = pos.prev_inst() {
            {