// This is a regression test on debug info to make sure that we can get a
// meaningful stack trace from a C++ program.
// RUN: %llvmgcc -S -O0 -g %s -o - | llvm-as | llc --disable-fp-elim -o Output/StackTrace.s -f
// RUN: as Output/StackTrace.s -o Output/StackTrace.o
// RUN: g++ Output/StackTrace.o -o Output/StackTrace.exe
// RUN: ( echo "break DeepStack::deepest"; echo "run 17" ; echo "where" ) > Output/StackTrace.gdbin 
// RUN: gdb -q -batch -n -x Output/StackTrace.gdbin Output/StackTrace.exe | tee Output/StackTrace.out | grep '#0  DeepStack::deepest.*(this=.*,.*x=33)'
// RUN: gdb -q -batch -n -x Output/StackTrace.gdbin Output/StackTrace.exe | grep '#7  0x.* in main.*(argc=[12],.*argv=.*)'
// XFAIL: i[1-9]86|alpha|ia64|arm

#include <stdlib.h>

class DeepStack {
  int seedVal;
public:
  DeepStack(int seed) : seedVal(seed) {}

  int shallowest( int x ) { return shallower(x + 1); }
  int shallower ( int x ) { return shallow(x + 2); }
  int shallow   ( int x ) { return deep(x + 3); }
  int deep      ( int x ) { return deeper(x + 4); }
  int deeper    ( int x ) { return deepest(x + 6); }
  int deepest   ( int x ) { return x + 7; }

  int runit() { return shallowest(seedVal); }
};

int main ( int argc, char** argv) {

  DeepStack DS9( (argc > 1 ? atoi(argv[1]) : 0) );
  return DS9.runit();
}