[PATCH] D21274: [Bugpoint] Erase comdat annotations after removing a global's initializer.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added reviewers: majnemer, rnk.
jlebar added a subscriber: llvm-commits.

This is necessary to keep the verifier happy after bugpoint removes an
initializer from a global variable with a comdat annotation, because
globals without initializers may not have comdats.

http://reviews.llvm.org/D21274

Files:
  tools/bugpoint/CrashDebugger.cpp

Index: tools/bugpoint/CrashDebugger.cpp
===================================================================
--- tools/bugpoint/CrashDebugger.cpp
+++ tools/bugpoint/CrashDebugger.cpp
@@ -164,6 +164,7 @@
     if (I.hasInitializer() && !GVSet.count(&I)) {
       DeleteGlobalInitializer(&I);
       I.setLinkage(GlobalValue::ExternalLinkage);
+      I.setComdat(nullptr);
     }
 
   // Try running the hacked up program...
@@ -668,6 +669,7 @@
       if (I->hasInitializer()) {
         DeleteGlobalInitializer(&*I);
         I->setLinkage(GlobalValue::ExternalLinkage);
+        I->setComdat(nullptr);
         DeletedInit = true;
       }
 


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