test/FrontendC++/2006-11-30-NoCompileUnit.cpp

   1 // This is a regression test on debug info to make sure we don't hit a compile
   2 // unit size issue with gdb.
   3 // RUN: %llvmgcc -S -O0 -g %s -o - | llvm-as | \
   4 // RUN:   llc --disable-fp-elim -o NoCompileUnit.s
   5 // RUN: %compile_c NoCompileUnit.s -o NoCompileUnit.o
   6 // RUN: %link NoCompileUnit.o -o NoCompileUnit.exe
   7 // RUN: echo {break main\nrun\np NoCompileUnit::pubname} > %t2
   8 // RUN: gdb -q -batch -n -x %t2 NoCompileUnit.exe | \
   9 // RUN:   tee NoCompileUnit.out | not grep {"low == high"}
  10 // XFAIL: alpha|arm
  11 // XFAIL: *
  12 // See PR2454
  13
  14
  15 class MamaDebugTest {
  16 private:
  17   int N;
  18
  19 protected:
  20   MamaDebugTest(int n) : N(n) {}
  21
  22   int getN() const { return N; }
  23
  24 };
  25
  26 class BabyDebugTest : public MamaDebugTest {
  27 private:
  28
  29 public:
  30   BabyDebugTest(int n) : MamaDebugTest(n) {}
  31
  32   static int doh;
  33
  34   int  doit() {
  35     int N = getN();
  36     int Table[N];
  37
  38     int sum = 0;
  39
  40     for (int i = 0; i < N; ++i) {
  41       int j = i;
  42       Table[i] = j;
  43     }
  44     for (int i = 0; i < N; ++i) {
  45       int j = Table[i];
  46       sum += j;
  47     }
  48
  49     return sum;
  50   }
  51
  52 };
  53
  54 int BabyDebugTest::doh;
  55
  56
  57 int main(int argc, const char *argv[]) {
  58   BabyDebugTest BDT(20);
  59   return BDT.doit();
  60 }