[PATCH] D19264: Enable ODR uniquing of DITypes for ThinLTO backends

[Teresa Johnson via llvm-commits]

tejohnson created this revision.
tejohnson added reviewers: dexonsmith, joker.eph.
tejohnson added a subscriber: llvm-commits.
Herald added a subscriber: joker.eph.

This is a follow-on to apply Duncan's new DIType ODR uniquing from
r266549 and r266713 in more places.

When invoking ThinLTO backend compiles via clang (for a distributed
build), invoke enableDebugTypeODRUniquing() before parsing the module.

http://reviews.llvm.org/D19264

Files:
  lib/CodeGen/CodeGenAction.cpp

Index: lib/CodeGen/CodeGenAction.cpp
===================================================================
--- lib/CodeGen/CodeGenAction.cpp
+++ lib/CodeGen/CodeGenAction.cpp
@@ -794,6 +794,9 @@
     if (Invalid)
       return;
 
+    if (!CI.getCodeGenOpts().ThinLTOIndexFile.empty())
+      VMContext->enableDebugTypeODRUniquing();
+
     llvm::SMDiagnostic Err;
     TheModule = parseIR(MainFile->getMemBufferRef(), Err, *VMContext);
     if (!TheModule) {


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