Patch to 1) synthesizing non-trivial default destructor when

one is not provided by user. 2) More complete
emission of ctor prologue when it has no initializer
list or when it is synthesized.

llvm-svn: 79269

1 files changed, 54 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/default-destructor-synthesis.cpp b/clang/test/CodeGenCXX/default-destructor-synthesis.cpp
new file mode 100644
index 00000000000..0f6849cf549
--- /dev/null
+++ b/clang/test/CodeGenCXX/default-destructor-synthesis.cpp
@@ -0,0 +1,54 @@
+// RUN: clang-cc -triple x86_64-apple-darwin -std=c++0x -O0 -S %s -o %t-64.s &&
+// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s &&
+// RUN: clang-cc -triple i386-apple-darwin -std=c++0x -O0 -S %s -o %t-32.s &&
+// RUN: FileCheck -check-prefix LP32 -input-file=%t-32.s %s &&
+// RUN: true
+
+extern "C" int printf(...);
+
+struct S {
+  S() : iS(1), fS(1.23) {};
+  ~S(){printf("S::~S(%d, %f)\n", iS, fS); };
+  int iS;
+  float fS;
+};
+
+struct Q {
+  Q() : iQ(2), dQ(2.34) {};
+  ~Q(){printf("Q::~Q(%d, %f)\n", iQ, dQ); };
+  int iQ;
+  double dQ;
+};
+
+struct P {
+  P() : fP(3.45) , iP(3) {};
+  ~P(){printf("P::~P(%d, %f)\n", iP, fP); };
+  float fP;
+  int iP;
+};
+
+struct M  : Q, P {
+  S s;
+
+  Q q;
+
+  P p; 
+
+};
+
+M gm;
+
+int main() {M m1;}
+
+// CHECK-LP64:  call	__ZN1MC1Ev
+// CHECK-LP64:  call	__ZN1MD1Ev
+// CHECK-LP64:  .globl	__ZN1MD1Ev
+// CHECK-LP64-NEXT:  .weak_definition __ZN1MD1Ev
+// CHECK-LP64-NEXT:  __ZN1MD1Ev:
+
+
+// CHECK-LP32:  call	L__ZN1MC1Ev
+// CHECK-LP32:  call	L__ZN1MD1Ev
+// CHECK-LP32:  .globl	__ZN1MD1Ev
+// CHECK-LP32-NEXT:  .weak_definition __ZN1MD1Ev
+// CHECK-LP32-NEXT:  __ZN1MD1Ev: