test/CodeGenCXX/constructor-conversion.cpp

// RUN: clang-cc -triple x86_64-apple-darwin -std=c++0x -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 -S %s -o %t-32.s &&
// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s &&
// RUN: true

extern "C" int printf(...);

class X { // ...
public: 
	X(int) : iX(2), fX(2.3) , name("HELLO\n") {  }

	X(const char* arg, int ix=0) { iX = ix; fX = 6.0; name = arg+ix; }
	X(): iX(100), fX(1.2) {}
	int iX;
	float fX;
	const char *name;
	void pr(void) {
	  printf("iX = %d  fX = %f name = %s\n", iX, fX, name);
	}
};

void g(X arg) {
  arg.pr();
}

void f(X arg) {

  X a = 1;  	// a = X(1)

  a.pr();

  X b = "Jessie"; //  b=X("Jessie",0)

  b.pr();


  a = 2;	  // a = X(2)

  a.pr();

}


int main()
{
	X x;
	f(x);
  	g(3); // g(X(3))
}

// CHECK-LP64: call     __ZN1XC1Ei
// CHECK-LP64: call     __ZN1XC1EPKci
// CHECK-LP64: call     __ZN1XC1Ev

// CHECK-LP32: call     L__ZN1XC1Ei
// CHECK-LP32: call     L__ZN1XC1EPKci
// CHECK-LP32: call     L__ZN1XC1Ev