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      1 // This is a regression test on debug info to make sure that we can get a
      2 // meaningful stack trace from a C++ program.
      3 // RUN: %llvmgcc -S -O0 -g %s -o - | \
      4 // RUN:    llc --disable-cfi --disable-fp-elim -o %t.s -O0 -relocation-model=pic
      5 // RUN: %compile_c %t.s -o %t.o
      6 // RUN: %link %t.o -o %t.exe
      7 // RUN: echo {break DeepStack::deepest\nrun 17\nwhere\n} > %t.in
      8 // RN: gdb -q -batch -n -x %t.in %t.exe | tee %t.out | \
      9 // RN:   grep {#0  DeepStack::deepest.*(this=.*,.*x=33)}
     10 // RN: gdb -q -batch -n -x %t.in %t.exe | \
     11 // RN:   grep {#7  0x.* in main.*(argc=\[12\],.*argv=.*)}
     12 
     13 // Only works on ppc (but not apple-darwin9), x86 and x86_64.  Should
     14 // generalize?
     15 // XAIL: alpha,arm,powerpc-apple-darwin9
     16 
     17 #include <stdlib.h>
     18 
     19 class DeepStack {
     20   int seedVal;
     21 public:
     22   DeepStack(int seed) : seedVal(seed) {}
     23 
     24   int shallowest( int x ) { return shallower(x + 1); }
     25   int shallower ( int x ) { return shallow(x + 2); }
     26   int shallow   ( int x ) { return deep(x + 3); }
     27   int deep      ( int x ) { return deeper(x + 4); }
     28   int deeper    ( int x ) { return deepest(x + 6); }
     29   int deepest   ( int x ) { return x + 7; }
     30 
     31   int runit() { return shallowest(seedVal); }
     32 };
     33 
     34 int main ( int argc, char** argv) {
     35 
     36   DeepStack DS9( (argc > 1 ? atoi(argv[1]) : 0) );
     37   return DS9.runit();
     38 }
     39