clang/test/CodeGenCXX/this-nonnull.cpp

   1 // RUN: %clang_cc1 -S -emit-llvm -o - -triple=x86_64-linux-gnu %s | FileCheck %s -check-prefix=CHECK-YES
   2 // RUN: %clang_cc1 -S -emit-llvm -o - -fno-delete-null-pointer-checks -triple=x86_64-linux-gnu %s | FileCheck %s -check-prefix=CHECK-NO
   3
   4 struct Struct {
   5   int many;
   6   int member;
   7   int fields;
   8   void ReturnsVoid();
   9 };
  10
  11 void TestReturnsVoid(Struct &s) {
  12   s.ReturnsVoid();
  13
  14   // CHECK-YES: call void @_ZN6Struct11ReturnsVoidEv(ptr noundef nonnull align 4 dereferenceable(12) %0)
  15   /// FIXME Use dereferenceable after dereferenceable respects NullPointerIsValid.
  16   // CHECK-NO: call void @_ZN6Struct11ReturnsVoidEv(ptr noundef align 4 dereferenceable_or_null(12) %0)
  17 }
  18
  19 // CHECK-YES: declare void @_ZN6Struct11ReturnsVoidEv(ptr noundef nonnull align 4 dereferenceable(12))
  20 // CHECK-NO: declare void @_ZN6Struct11ReturnsVoidEv(ptr noundef align 4 dereferenceable_or_null(12))