From 89947017ddc118def00f2eadf34d6d46930cf270 Mon Sep 17 00:00:00 2001
From: Zhengyang Liu <liuz@cs.utah.edu>
Date: Thu, 27 Sep 2018 21:23:47 -0600
Subject: [PATCH] Crashes with report when call getValue() on operands returns
 null

---
 lib/Pass/Pass.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/Pass/Pass.cpp b/lib/Pass/Pass.cpp
index 1792d99fb..3b793dd77 100644
--- a/lib/Pass/Pass.cpp
+++ b/lib/Pass/Pass.cpp
@@ -419,9 +419,7 @@ struct SouperPass : public ModulePass {
       Value *NewVal = getValue(Cand.Mapping.RHS, I, EBC, DT,
                                ReplacedValues, Builder, F->getParent());
       if (!NewVal) {
-        if (DebugSouperPass)
-          errs() << "\"\n; replacement failed\n";
-        continue;
+        report_fatal_error("Unable to find corresponding LLVM IR");
       }
 
       ReplacedValues[Cand.Mapping.LHS] = NewVal;