[PATCH] D28843: IRGen: Start using the WriteThinLTOBitcode pass.

[Peter Collingbourne via Phabricator via cfe-commits]

pcc updated this revision to Diff 84907.
pcc added a comment.
Herald added a subscriber: mgorny.

- Add missing test dependency


https://reviews.llvm.org/D28843

Files:
  clang/lib/CodeGen/BackendUtil.cpp
  clang/test/CMakeLists.txt
  clang/test/CodeGenCXX/type-metadata-thinlto.cpp


Index: clang/test/CodeGenCXX/type-metadata-thinlto.cpp
===================================================================
--- /dev/null
+++ clang/test/CodeGenCXX/type-metadata-thinlto.cpp
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -flto=thin -flto-unit -triple x86_64-unknown-linux -fvisibility hidden -emit-llvm-bc -o %t %s
+// RUN: llvm-modextract -o - -n 1 %t | llvm-dis | FileCheck %s
+
+// CHECK: @_ZTV1A = linkonce_odr
+class A {
+  virtual void f() {}
+};
+
+A *f() {
+  return new A;
+}
Index: clang/test/CMakeLists.txt
===================================================================
--- clang/test/CMakeLists.txt
+++ clang/test/CMakeLists.txt
@@ -80,6 +80,7 @@
     llc
     llvm-bcanalyzer
     llvm-dis
+    llvm-modextract
     llvm-nm
     llvm-objdump
     llvm-profdata
Index: clang/lib/CodeGen/BackendUtil.cpp
===================================================================
--- clang/lib/CodeGen/BackendUtil.cpp
+++ clang/lib/CodeGen/BackendUtil.cpp
@@ -688,9 +688,11 @@
     break;
 
   case Backend_EmitBC:
-    PerModulePasses.add(createBitcodeWriterPass(
-        *OS, CodeGenOpts.EmitLLVMUseLists, CodeGenOpts.EmitSummaryIndex,
-        CodeGenOpts.EmitSummaryIndex));
+    if (CodeGenOpts.EmitSummaryIndex)
+      PerModulePasses.add(createWriteThinLTOBitcodePass(*OS));
+    else
+      PerModulePasses.add(
+          createBitcodeWriterPass(*OS, CodeGenOpts.EmitLLVMUseLists));
     break;
 
   case Backend_EmitLL:


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