Merge pull request #2473 from cfallin/fix-lowering

Fix lowering instruction-sinking (load-merging) bug.
2020-12-03 15:56:50 -08:00
parent 76d3fb61c3 3e516e784b
commit bfd10512c1
2 changed files with 16 additions and 0 deletions
--- a/cranelift/codegen/src/machinst/lower.rs
+++ b/cranelift/codegen/src/machinst/lower.rs
@@ -913,6 +913,7 @@ impl<'func, I: VCodeInst> Lower<'func, I> {
                    // the code-motion.
                    if self.cur_scan_entry_color.is_some()
                        && self.value_uses[val] == 1
+                        && self.value_lowered_uses[val] == 0
                        && self.num_outputs(src_inst) == 1
                        && self
                            .side_effect_inst_entry_colors