test/CodeGenObjC/messages.m

// RUN: clang-cc -fnext-runtime --emit-llvm -o %t %s &&
// RUN: grep "objc_msgSend" %t | count 6 &&
// RUNX: clang-cc -fgnu-runtime --emit-llvm -o %t %s &&
// RUNX: grep "objc_msg_lookup" %t | count 6 &&
// RUNY: clang-cc -fgnu-runtime -fobjc-sender-dependent-dispatch --emit-llvm -o %t %s &&
// RUNY: grep "objc_msg_lookup_sender" %t | count 6
// RUN: true

typedef struct {
  int x;
  int y;
  int z[10];
} MyPoint;

void f0(id a) {
  int i;
  MyPoint pt = { 1, 2};

  [a print0];
  [a print1: 10];
  [a print2: 10 and: "hello" and: 2.2];
  [a takeStruct: pt ];
  
  void *s = @selector(print0);
  for (i=0; i<2; ++i)
    [a performSelector:s];
}