Add codegen support for block-level compound literals.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51081 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index addd939..d679107 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -106,6 +106,8 @@
   case Expr::ExtVectorElementExprClass:
     return EmitExtVectorElementExpr(cast<ExtVectorElementExpr>(E));
   case Expr::MemberExprClass: return EmitMemberExpr(cast<MemberExpr>(E));
+  case Expr::CompoundLiteralExprClass:
+    return EmitCompoundLiteralLValue(cast<CompoundLiteralExpr>(E));
   }
 }
 
@@ -563,6 +565,24 @@
                               Field->getType()->isSignedIntegerType());
 }
 
+LValue CodeGenFunction::EmitCompoundLiteralLValue(const CompoundLiteralExpr* E) {
+  const llvm::Type *LTy = ConvertType(E->getType());
+  llvm::Value *DeclPtr = CreateTempAlloca(LTy, ".compoundliteral");
+
+  const Expr* InitExpr = E->getInitializer();
+  LValue Result = LValue::MakeAddr(DeclPtr);
+
+  if (E->getType()->isComplexType()) {
+    EmitComplexExprIntoAddr(InitExpr, DeclPtr, false);
+  } else if (hasAggregateLLVMType(E->getType())) {
+    EmitAnyExpr(InitExpr, DeclPtr, false);
+  } else {
+    EmitStoreThroughLValue(EmitAnyExpr(InitExpr), Result, E->getType());
+  }
+
+  return Result;
+}
+
 //===--------------------------------------------------------------------===//
 //                             Expression Emission
 //===--------------------------------------------------------------------===//