[PATCH] D39443: [ThinLTO] Double bits of module hash used for renaming

[Teresa Johnson via Phabricator via llvm-commits]

tejohnson updated this revision to Diff 120968.
tejohnson added a comment.

Address comment


https://reviews.llvm.org/D39443

Files:
  include/llvm/IR/ModuleSummaryIndex.h


Index: include/llvm/IR/ModuleSummaryIndex.h
===================================================================
--- include/llvm/IR/ModuleSummaryIndex.h
+++ include/llvm/IR/ModuleSummaryIndex.h
@@ -743,7 +743,8 @@
   static std::string getGlobalNameForLocal(StringRef Name, ModuleHash ModHash) {
     SmallString<256> NewName(Name);
     NewName += ".llvm.";
-    NewName += utostr(ModHash[0]); // Take the first 32 bits
+    NewName += utostr((uint64_t(ModHash[0]) << 32) |
+                      ModHash[1]); // Take the first 64 bits
     return NewName.str();
   }
 


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