From 515a60daff46d2a227f42d01da299b54aa232e84 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 16 Feb 2012 00:57:37 +0000
Subject: Teach clang to add metadata tags to calls and invokes in ObjC with
 -fno-objc-arc-exceptions. This will allow the optimizer to perform
 optimizations which are only safe under that flag.

This is a part of rdar://10803830.

llvm-svn: 150644
---
 clang/lib/CodeGen/CodeGenModule.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'clang/lib/CodeGen/CodeGenModule.h')

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 6813edd..9b6931d 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -233,6 +233,7 @@ class CodeGenModule : public CodeGenTypeCache {
   CGCUDARuntime* CUDARuntime;
   CGDebugInfo* DebugInfo;
   ARCEntrypoints *ARCData;
+  llvm::MDNode *NoObjCARCExceptionsMetadata;
   RREntrypoints *RRData;
 
   // WeakRefReferences - A set of references that have only been seen via
@@ -421,6 +422,14 @@ public:
 
   CGDebugInfo *getModuleDebugInfo() { return DebugInfo; }
 
+  llvm::MDNode *getNoObjCARCExceptionsMetadata() {
+    if (!NoObjCARCExceptionsMetadata)
+      NoObjCARCExceptionsMetadata =
+        llvm::MDNode::get(getLLVMContext(),
+                          SmallVector<llvm::Value*,1>());
+    return NoObjCARCExceptionsMetadata;
+  }
+
   ASTContext &getContext() const { return Context; }
   const CodeGenOptions &getCodeGenOpts() const { return CodeGenOpts; }
   const LangOptions &getLangOptions() const { return Features; }
-- 
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