clang/test/Misc/backend-stack-frame-diagnostics-fallback.cpp

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 %s -fwarn-stack-size=0 -emit-codegen-only -triple=i386-apple-darwin 2>&1 | FileCheck %s
   3
   4 // TODO: Emit rich diagnostics for thunks and move this into the appropriate test file.
   5 // Until then, test that we fall back and display the LLVM backend diagnostic.
   6 namespace frameSizeThunkWarning {
   7   struct A {
   8     virtual void f();
   9   };
  10
  11   struct B : virtual A {
  12     virtual void f();
  13   };
  14
  15   // CHECK: warning: stack frame size ([[#]]) exceeds limit ([[#]]) in 'frameSizeThunkWarning::B::f()'
  16   // CHECK: warning: <unknown>:0:0: stack frame size ([[#]]) exceeds limit ([[#]]) in function '_ZTv0_n12_N21frameSizeThunkWarning1B1fEv'
  17   void B::f() {
  18     volatile int x = 0; // Ensure there is stack usage.
  19   }
  20 }