From 4389f16156925582e28317790fb24b79d4bd2a81 Mon Sep 17 00:00:00 2001
From: Chris Fallin <chris@cfallin.org>
Date: Tue, 18 May 2021 12:14:59 -0700
Subject: [PATCH] debugging log message for liveins

---
 src/ion/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ion/mod.rs b/src/ion/mod.rs
index aabb5ee..96541e5 100644
--- a/src/ion/mod.rs
+++ b/src/ion/mod.rs
@@ -987,6 +987,10 @@ impl<'a, F: Function> Env<'a, F> {
             .next()
             .is_some()
         {
+            log::debug!(
+                "non-empty liveins to entry block: {:?}",
+                self.liveins[self.func.entry_block().index()]
+            );
             return Err(RegAllocError::EntryLivein);
         }