From: John McCall <rjmccall@apple.com>
Date: Tue, 16 Apr 2013 22:32:04 +0000 (+0000)
Subject: Don't put too much thought into whether or not to capture a
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d314abeffba04dffc101e4e71cc3a32ddeed4ae6;p=clang

Don't put too much thought into whether or not to capture a
type-dependent intermediate result in a postfix ++ pseudo-
object operation.

Test case by Tong Shen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179637 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaPseudoObject.cpp b/lib/Sema/SemaPseudoObject.cpp
index 560efa5a4e..795cfbacfb 100644
--- a/lib/Sema/SemaPseudoObject.cpp
+++ b/lib/Sema/SemaPseudoObject.cpp
@@ -441,7 +441,8 @@ PseudoOpBuilder::buildIncDecOperation(Scope *Sc, SourceLocation opcLoc,
   QualType resultType = result.get()->getType();
 
   // That's the postfix result.
-  if (UnaryOperator::isPostfix(opcode) && CanCaptureValueOfType(resultType)) {
+  if (UnaryOperator::isPostfix(opcode) &&
+      (result.get()->isTypeDependent() || CanCaptureValueOfType(resultType))) {
     result = capture(result.take());
     setResultToLastSemantic();
   }
diff --git a/test/SemaCXX/MicrosoftExtensions.cpp b/test/SemaCXX/MicrosoftExtensions.cpp
index 07b93face9..ab3ff69f27 100644
--- a/test/SemaCXX/MicrosoftExtensions.cpp
+++ b/test/SemaCXX/MicrosoftExtensions.cpp
@@ -302,13 +302,14 @@ struct SP9 {
   T GetV() { return 0; }
   void SetV(T v) {}
   void f() { V = this->V; V < this->V; }
-  //void g() { V++; }
-  //void h() { V*=2; }
+  void g() { V++; }
+  void h() { V*=2; }
 };
 struct SP10 {
   SP10(int v) {}
   bool operator<(const SP10& v) { return true; }
   SP10 operator*(int v) { return *this; }
+  SP10 operator+(int v) { return *this; }
   SP10& operator=(const SP10& v) { return *this; }
 };
 void TestSP9() {
@@ -329,6 +330,6 @@ void TestSP9() {
 
   SP9<SP10> c3;
   c3.f(); // Overloaded binary op operand
-  //c3.g(); // Overloaded incdec op operand
-  //c3.h(); // Overloaded unary op operand
+  c3.g(); // Overloaded incdec op operand
+  c3.h(); // Overloaded unary op operand
 }