1 // RUN: %clang_cc1 -no-opaque-pointers -S -emit-llvm %s -triple x86_64-unknown-linux-gnu -o - | FileCheck %s 2 3 class A { 4 public: 5 [[clang::nomerge]] A(); 6 [[clang::nomerge]] virtual ~A(); 7 [[clang::nomerge]] void f(); 8 [[clang::nomerge]] virtual void g(); 9 [[clang::nomerge]] static void f1(); 10 }; 11 12 class B : public A { 13 public: 14 void g() override; 15 }; 16 17 bool bar(); 18 [[clang::nomerge]] void f(bool, bool); 19 20 void foo(int i, A *ap, B *bp) { 21 [[clang::nomerge]] bar(); 22 [[clang::nomerge]] (i = 4, bar()); 23 [[clang::nomerge]] (void)(bar()); 24 f(bar(), bar()); 25 [[clang::nomerge]] [] { bar(); bar(); }(); // nomerge only applies to the anonymous function call 26 [[clang::nomerge]] for (bar(); bar(); bar()) {} 27 [[clang::nomerge]] { asm("nop"); } 28 bar(); 29 30 ap->g(); 31 bp->g(); 32 33 A a; 34 a.f(); 35 a.g(); 36 A::f1(); 37 38 B b; 39 b.g(); 40 41 A *newA = new B(); 42 delete newA; 43 } 44 45 int g(int i); 46 47 void something() { 48 g(1); 49 } 50 51 [[clang::nomerge]] int g(int i); 52 53 void something_else() { 54 g(1); 55 } 56 57 int g(int i) { return i; } 58 59 void something_else_again() { 60 g(1); 61 } 62 63 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0:[0-9]+]] 64 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0]] 65 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0]] 66 // CHECK: call noundef zeroext i1 @_Z3barv(){{$}} 67 // CHECK: call noundef zeroext i1 @_Z3barv(){{$}} 68 // CHECK: call void @_Z1fbb({{.*}}) #[[ATTR0]] 69 // CHECK: call void @"_ZZ3fooiP1AP1BENK3$_0clEv"{{.*}} #[[ATTR0]] 70 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0]] 71 // CHECK-LABEL: for.cond: 72 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0]] 73 // CHECK-LABEL: for.inc: 74 // CHECK: call noundef zeroext i1 @_Z3barv() #[[ATTR0]] 75 // CHECK: call void asm sideeffect "nop"{{.*}} #[[ATTR1:[0-9]+]] 76 // CHECK: call noundef zeroext i1 @_Z3barv(){{$}} 77 // CHECK: %[[AG:.*]] = load void (%class.A*)*, void (%class.A*)** 78 // CHECK-NEXT: call void %[[AG]](%class.A* {{.*}}) #[[ATTR0]] 79 // CHECK: %[[BG:.*]] = load void (%class.B*)*, void (%class.B*)** 80 // CHECK-NEXT: call void %[[BG]](%class.B* noundef{{.*}} 81 // CHECK: call void @_ZN1AC1Ev({{.*}}) #[[ATTR0]] 82 // CHECK: call void @_ZN1A1fEv({{.*}}) #[[ATTR0]] 83 // CHECK: call void @_ZN1A1gEv({{.*}}) #[[ATTR0]] 84 // CHECK: call void @_ZN1A2f1Ev() #[[ATTR0]] 85 // CHECK: call void @_ZN1BC1Ev({{.*}}){{$}} 86 // CHECK: call void @_ZN1B1gEv({{.*}}){{$}} 87 // CHECK: call void @_ZN1BC1Ev({{.*}}){{$}} 88 // CHECK: %[[AG:.*]] = load void (%class.A*)*, void (%class.A*)** 89 // CHECK-NEXT: call void %[[AG]](%class.A* {{.*}}) #[[ATTR1]] 90 // CHECK: call void @_ZN1AD1Ev(%class.A* {{.*}}) #[[ATTR1]] 91 92 // CHECK-DAG: attributes #[[ATTR0]] = {{{.*}}nomerge{{.*}}} 93 // CHECK-DAG: attributes #[[ATTR1]] = {{{.*}}nomerge{{.*}}} 94