Embed bitcode in object file (clang cc1 part)

Summary:
Teach clang to embed bitcode inside bitcode. When -fembed-bitcode cc1
option is used, clang will embed both the input bitcode and cc1
commandline into the bitcode in special sections before compiling to
the object file.  Using -fembed-bitcode-marker will only introduce a
marker in both sections.

Depends on D17390

Reviewers: rsmith

Subscribers: yaron.keren, vsk, cfe-commits

Differential Revision: http://reviews.llvm.org/D17392

llvm-svn: 269202

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 98685539d35..848acb4fe07 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -173,6 +173,8 @@ namespace clang {
           return;
       }
 
+      EmbedBitcode(getModule(), CodeGenOpts, llvm::MemoryBufferRef());
+
       EmitBackendOutput(Diags, CodeGenOpts, TargetOpts, LangOpts,
                         C.getTargetInfo().getDataLayout(),
                         getModule(), Action, AsmOutStream);
@@ -831,9 +833,13 @@ void CodeGenAction::ExecuteAction() {
       TheModule->setTargetTriple(TargetOpts.Triple);
     }
 
+    EmbedBitcode(TheModule.get(), CI.getCodeGenOpts(),
+                 MainFile->getMemBufferRef());
+
     LLVMContext &Ctx = TheModule->getContext();
     Ctx.setInlineAsmDiagnosticHandler(BitcodeInlineAsmDiagHandler,
                                       &CI.getDiagnostics());
+
     EmitBackendOutput(CI.getDiagnostics(), CI.getCodeGenOpts(), TargetOpts,
                       CI.getLangOpts(), CI.getTarget().getDataLayout(),
                       TheModule.get(), BA, OS);