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-rw-r--r--lib/CodeGen/CGExpr.cpp5
-rw-r--r--lib/CodeGen/CGExprConstant.cpp6
-rw-r--r--lib/CodeGen/CodeGenModule.h4
-rw-r--r--test/CodeGenCXX/compound-literals.cpp5
4 files changed, 20 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index a35bb5f711..e4f81b7a3f 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -1947,6 +1947,11 @@ CodeGenFunction::EmitLValueForFieldInitialization(llvm::Value *BaseValue,
}
LValue CodeGenFunction::EmitCompoundLiteralLValue(const CompoundLiteralExpr *E){
+ if (E->isFileScope()) {
+ llvm::Value *GlobalPtr = CGM.GetAddrOfConstantCompoundLiteral(E);
+ return MakeAddrLValue(GlobalPtr, E->getType());
+ }
+
llvm::Value *DeclPtr = CreateMemTemp(E->getType(), ".compoundliteral");
const Expr *InitExpr = E->getInitializer();
LValue Result = MakeAddrLValue(DeclPtr, E->getType());
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 7485c71d7d..5d436619d7 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -1087,6 +1087,12 @@ llvm::Constant *CodeGenModule::EmitConstantExpr(const Expr *E,
return C;
}
+llvm::Constant *
+CodeGenModule::GetAddrOfConstantCompoundLiteral(const CompoundLiteralExpr *E) {
+ assert(E->isFileScope() && "not a file-scope compound literal expr");
+ return ConstExprEmitter(*this, 0).EmitLValue(E);
+}
+
static uint64_t getFieldOffset(ASTContext &C, const FieldDecl *field) {
const ASTRecordLayout &layout = C.getASTRecordLayout(field->getParent());
return layout.getFieldOffset(field->getFieldIndex());
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 7b82819af3..4c31737b29 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -599,6 +599,10 @@ public:
llvm::Constant *GetAddrOfConstantCString(const std::string &str,
const char *GlobalName=0,
unsigned Alignment=1);
+
+ /// GetAddrOfConstantCompoundLiteral - Returns a pointer to a constant global
+ /// variable for the given file-scope compound literal expression.
+ llvm::Constant *GetAddrOfConstantCompoundLiteral(const CompoundLiteralExpr*E);
/// \brief Retrieve the record type that describes the state of an
/// Objective-C fast enumeration loop (for..in).
diff --git a/test/CodeGenCXX/compound-literals.cpp b/test/CodeGenCXX/compound-literals.cpp
index f520ff9951..aa9ae3cacf 100644
--- a/test/CodeGenCXX/compound-literals.cpp
+++ b/test/CodeGenCXX/compound-literals.cpp
@@ -37,3 +37,8 @@ int g() {
// CHECK-NEXT: ret i32 [[A0]]
return v[0];
}
+
+struct Z { int i[3]; };
+int *p = (Z){ {1, 2, 3} }.i;
+// CHECK: define {{.*}}__cxx_global_var_init()
+// CHECK: store i32* getelementptr inbounds (%struct.Z* @.compoundliteral, i32 0, i32 0, i32 0), i32** @p, align 8