Support va_arg on _Complex.
gcc compat test suite results (Darwin x86-32 & -64):
--
# of expected passes 1110
# of unexpected failures 74
# of unresolved testcases 168
# of unsupported tests 2
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64197 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprComplex.cpp b/lib/CodeGen/CGExprComplex.cpp
index 387635c..89a206d 100644
--- a/lib/CodeGen/CGExprComplex.cpp
+++ b/lib/CodeGen/CGExprComplex.cpp
@@ -192,6 +192,8 @@
ComplexPairTy VisitChooseExpr(ChooseExpr *CE);
ComplexPairTy VisitInitListExpr(InitListExpr *E);
+
+ ComplexPairTy VisitVAArgExpr(VAArgExpr *E);
};
} // end anonymous namespace.
@@ -528,6 +530,22 @@
return ComplexPairTy(zeroConstant, zeroConstant);
}
+ComplexPairTy ComplexExprEmitter::VisitVAArgExpr(VAArgExpr *E) {
+ llvm::Value *ArgValue = CGF.EmitLValue(E->getSubExpr()).getAddress();
+ llvm::Value *ArgPtr = CGF.EmitVAArg(ArgValue, E->getType());
+
+ if (!ArgPtr) {
+ CGF.ErrorUnsupported(E, "complex va_arg expression");
+ const llvm::Type *EltTy =
+ CGF.ConvertType(E->getType()->getAsComplexType()->getElementType());
+ llvm::Value *U = llvm::UndefValue::get(EltTy);
+ return ComplexPairTy(U, U);
+ }
+
+ // FIXME Volatility.
+ return EmitLoadOfComplex(ArgPtr, false);
+}
+
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