Add CodeGen support for CXXZeroInitValueExpr.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55249 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index a01832f..b004bde 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -720,6 +720,9 @@
Result.setIsUnsigned(!getType()->isSignedIntegerType());
break;
}
+ case CXXZeroInitValueExprClass:
+ Result.clear();
+ break;
case TypesCompatibleExprClass: {
const TypesCompatibleExpr *TCE = cast<TypesCompatibleExpr>(this);
Result.zextOrTrunc(static_cast<uint32_t>(Ctx.getTypeSize(getType())));
diff --git a/lib/CodeGen/CGExprComplex.cpp b/lib/CodeGen/CGExprComplex.cpp
index ba384e7..3e1f695 100644
--- a/lib/CodeGen/CGExprComplex.cpp
+++ b/lib/CodeGen/CGExprComplex.cpp
@@ -124,6 +124,12 @@
ComplexPairTy VisitCXXDefaultArgExpr(CXXDefaultArgExpr *DAE) {
return Visit(DAE->getExpr());
}
+ ComplexPairTy VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *E) {
+ assert(E->getType()->isAnyComplexType() && "Expected complex type!");
+ QualType Elem = E->getType()->getAsComplexType()->getElementType();
+ llvm::Constant *Null = llvm::Constant::getNullValue(CGF.ConvertType(Elem));
+ return ComplexPairTy(Null, Null);
+ }
struct BinOpInfo {
ComplexPairTy LHS;
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index fe9b5c9..9f94d42 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -61,6 +61,9 @@
llvm::Constant *VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *E) {
return llvm::ConstantInt::get(ConvertType(E->getType()), E->getValue());
}
+ llvm::Constant *VisitCXXZeroInitValueExpr(const CXXZeroInitValueExpr *E) {
+ return llvm::Constant::getNullValue(ConvertType(E->getType()));
+ }
llvm::Constant *VisitObjCStringLiteral(const ObjCStringLiteral *E) {
std::string S(E->getString()->getStrData(),
E->getString()->getByteLength());
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index 3f7b737..af8fe27 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -109,6 +109,9 @@
Value *VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *E) {
return llvm::ConstantInt::get(ConvertType(E->getType()), E->getValue());
}
+ Value *VisitCXXZeroInitValueExpr(const CXXZeroInitValueExpr *E) {
+ return llvm::Constant::getNullValue(ConvertType(E->getType()));
+ }
Value *VisitTypesCompatibleExpr(const TypesCompatibleExpr *E) {
return llvm::ConstantInt::get(ConvertType(E->getType()),
CGF.getContext().typesAreCompatible(
diff --git a/test/CodeGen/cxx-value-init.cpp b/test/CodeGen/cxx-value-init.cpp
new file mode 100644
index 0000000..b1cddd9
--- /dev/null
+++ b/test/CodeGen/cxx-value-init.cpp
@@ -0,0 +1,11 @@
+// RUN: clang -emit-llvm %s -o %t
+
+enum E {};
+int v1 = E();
+float v2 = float();
+
+void f() {
+ int v3 = int();
+ _Complex int v4 = typeof(_Complex int)();
+ _Complex float v5 = typeof(_Complex float)();
+}