cross-project-tests/debuginfo-tests/dexter-tests/realigned-frame.cpp

   1 // REQUIRES: system-windows
   2 //
   3 // RUN: %clang_cl /Z7 /Zi %s -o %t
   4 // RUN: %dexter --fail-lt 1.0 -w --binary %t --debugger 'dbgeng' -- %s
   5
   6 // From https://llvm.org/pr38857, where we had issues with stack realignment.
   7
   8 struct Foo {
   9   int x = 42;
  10   int __declspec(noinline) foo();
  11   void __declspec(noinline) bar(int *a, int *b, double *c);
  12 };
  13 int Foo::foo() {
  14   int a = 1;
  15   int b = 2;
  16   double __declspec(align(32)) force_alignment = 0.42;
  17   bar(&a, &b, &force_alignment); // DexLabel('in_foo')
  18   x += (int)force_alignment;
  19   return x;
  20 }
  21 void Foo::bar(int *a, int *b, double *c) {
  22   *c += *a + *b; // DexLabel('in_bar')
  23 }
  24 int main() {
  25   Foo o;
  26   o.foo();
  27 }
  28 /*
  29 DexExpectProgramState({'frames':[
  30     {'function': 'Foo::bar', 'location' : {'lineno' : ref('in_bar')} },
  31     {'function': 'Foo::foo',
  32      'watches' : {
  33        'a' : '1',
  34        'b' : '2',
  35        'force_alignment' : '0.42'
  36      }
  37     }
  38 ]})
  39 */