clang/test/CodeGenCXX/inheriting-constructor-cleanup.cpp

   1 // RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
   2 // RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -fcxx-exceptions -fexceptions -emit-llvm -o - %s | FileCheck %s --check-prefix=EXCEPTIONS
   3
   4 // PR36748
   5 // rdar://problem/45805151
   6
   7 // Classes to verify order of destroying function parameters.
   8 struct S1 {
   9   ~S1();
  10 };
  11 struct S2 {
  12   ~S2();
  13 };
  14
  15 struct Base {
  16   // Use variadic args to cause inlining the inherited constructor.
  17   Base(const S1&, const S2&, const char *fmt, ...) {}
  18 };
  19
  20 struct NonTrivialDtor {
  21   ~NonTrivialDtor() {}
  22 };
  23 struct Inheritor : public NonTrivialDtor, public Base {
  24   using Base::Base;
  25 };
  26
  27 void f() {
  28   Inheritor(S1(), S2(), "foo");
  29   // CHECK-LABEL: define{{.*}} void @_Z1fv
  30   // CHECK: %[[TMP1:.*]] = alloca %struct.S1
  31   // CHECK: %[[TMP2:.*]] = alloca %struct.S2
  32   // CHECK: call void (%struct.Base*, %struct.S1*, %struct.S2*, i8*, ...) @_ZN4BaseC2ERK2S1RK2S2PKcz(%struct.Base* {{.*}}, %struct.S1* noundef nonnull align 1 dereferenceable(1) %[[TMP1]], %struct.S2* noundef nonnull align 1 dereferenceable(1) %[[TMP2]], i8* {{.*}})
  33   // CHECK-NEXT: call void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
  34   // CHECK-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
  35   // CHECK-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
  36
  37   // EXCEPTIONS-LABEL: define{{.*}} void @_Z1fv
  38   // EXCEPTIONS: %[[TMP1:.*]] = alloca %struct.S1
  39   // EXCEPTIONS: %[[TMP2:.*]] = alloca %struct.S2
  40   // EXCEPTIONS: invoke void (%struct.Base*, %struct.S1*, %struct.S2*, i8*, ...) @_ZN4BaseC2ERK2S1RK2S2PKcz(%struct.Base* {{.*}}, %struct.S1* noundef nonnull align 1 dereferenceable(1) %[[TMP1]], %struct.S2* noundef nonnull align 1 dereferenceable(1) %[[TMP2]], i8* {{.*}})
  41   // EXCEPTIONS-NEXT: to label %[[CONT:.*]] unwind label %[[LPAD:.*]]
  42
  43   // EXCEPTIONS: [[CONT]]:
  44   // EXCEPTIONS-NEXT: call void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
  45   // EXCEPTIONS-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
  46   // EXCEPTIONS-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
  47
  48   // EXCEPTIONS: [[LPAD]]:
  49   // EXCEPTIONS: call void @_ZN14NonTrivialDtorD2Ev(%struct.NonTrivialDtor* {{.*}})
  50   // EXCEPTIONS-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
  51   // EXCEPTIONS-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
  52 }