clang/test/CodeGenCXX/constructor-conversion.cpp

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm %s -o - | \
   2 // RUN: FileCheck %s
   3 // RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -emit-llvm %s -o - | \
   4 // RUN: FileCheck %s
   5
   6 extern "C" int printf(...);
   7
   8 class X { // ...
   9 public:
  10   X(int) : iX(2), fX(2.3) , name("HELLO\n") {  }
  11
  12   X(const char* arg, int ix=0) { iX = ix; fX = 6.0; name = arg+ix; }
  13   X(): iX(100), fX(1.2) {}
  14   int iX;
  15   float fX;
  16   const char *name;
  17   void pr(void) {
  18     printf("iX = %d  fX = %f name = %s\n", iX, fX, name);
  19   }
  20 };
  21
  22 void g(X arg) {
  23   arg.pr();
  24 }
  25
  26 void f(X arg) {
  27   X a = 1;        // a = X(1)
  28
  29   a.pr();
  30
  31   X b = "Jessie"; //  b=X("Jessie",0)
  32
  33   b.pr();
  34
  35
  36   a = 2;          // a = X(2)
  37
  38   a.pr();
  39 }
  40
  41
  42 int main() {
  43   X x;
  44   f(x);
  45   g(3);           // g(X(3))
  46 }
  47
  48 // CHECK: call void @_ZN1XC1Ei
  49 // CHECK: call void @_ZN1XC1EPKci
  50 // CHECK: call void @_ZN1XC1Ev