| ; RUN: llc < %s -mtriple=x86_64-w64-windows-gnu | FileCheck %s |
| ; Control Flow Guard is currently only available on Windows |
| |
| ; This file was generated from the following source, using this command line: |
| ; clang++ -target x86_64-w64-windows-gnu cfguard-mingw.cpp -S -emit-llvm -o cfguard-mingw.ll -O -Xclang -cfguard |
| ; |
| ;------------------------------------------------------------------------------- |
| ; class __attribute__((dllexport)) Base { |
| ; public: |
| ; __attribute__((dllexport)) Base() = default; |
| ; __attribute__((dllexport)) virtual ~Base() = default; |
| ; __attribute__((dllexport)) virtual int calc() const { |
| ; return m_field * 2; |
| ; } |
| ; int m_field{0}; |
| ; }; |
| ; |
| ; class __attribute__((dllexport)) Derived : public Base { |
| ; public: |
| ; __attribute__((dllexport)) Derived() = default; |
| ; __attribute__((dllexport)) ~Derived() override = default; |
| ; __attribute__((dllexport)) int calc() const override { |
| ; return m_field * 2 + m_newfield; |
| ; } |
| ; int m_newfield{0}; |
| ; }; |
| ; |
| ; __attribute((noinline)) void address_taken() {} |
| ; __attribute((noinline)) void address_not_taken() {} |
| ; |
| ; using fn_t = void (*)(); |
| ; __attribute__((dllexport)) fn_t get_address() { |
| ; address_not_taken(); |
| ; return &address_taken; |
| ; } |
| ;------------------------------------------------------------------------------- |
| |
| ; CHECK: .set @feat.00, 2048 |
| |
| ; CHECK: .section .gfids$y |
| ; CHECK: .symidx _ZNK7Derived4calcEv |
| ; CHECK: .symidx _Z13address_takenv |
| |
| ; ModuleID = 'cfguard-mingw.cpp' |
| source_filename = "cfguard-mingw.cpp" |
| target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-w64-windows-gnu" |
| |
| %class.Base = type <{ ptr, i32, [4 x i8] }> |
| %class.Derived = type { %class.Base.base, i32 } |
| %class.Base.base = type <{ ptr, i32 }> |
| |
| $_ZN4BaseC2Ev = comdat any |
| |
| $_ZN4BaseC1Ev = comdat any |
| |
| $_ZNK4Base4calcEv = comdat any |
| |
| $_ZN4BaseD2Ev = comdat any |
| |
| $_ZN4BaseD1Ev = comdat any |
| |
| $_ZN4BaseD0Ev = comdat any |
| |
| $_ZN7DerivedC2Ev = comdat any |
| |
| $_ZN7DerivedC1Ev = comdat any |
| |
| $_ZNK7Derived4calcEv = comdat any |
| |
| $_ZN7DerivedD2Ev = comdat any |
| |
| $_ZN7DerivedD1Ev = comdat any |
| |
| $_ZN7DerivedD0Ev = comdat any |
| |
| $_ZTV4Base = comdat any |
| |
| $_ZTV7Derived = comdat any |
| |
| $_ZTS4Base = comdat any |
| |
| $_ZTI4Base = comdat any |
| |
| $_ZTS7Derived = comdat any |
| |
| $_ZTI7Derived = comdat any |
| |
| @_ZTV4Base = weak_odr dso_local dllexport unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr @_ZTI4Base, ptr @_ZN4BaseD1Ev, ptr @_ZN4BaseD0Ev, ptr @_ZNK4Base4calcEv] }, comdat, align 8 |
| @_ZTV7Derived = weak_odr dso_local dllexport unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr @_ZTI7Derived, ptr @_ZN7DerivedD1Ev, ptr @_ZN7DerivedD0Ev, ptr @_ZNK7Derived4calcEv] }, comdat, align 8 |
| @_ZTVN10__cxxabiv117__class_type_infoE = external global ptr |
| @_ZTS4Base = linkonce_odr dso_local constant [6 x i8] c"4Base\00", comdat, align 1 |
| @_ZTI4Base = linkonce_odr dso_local constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr @_ZTS4Base }, comdat, align 8 |
| @_ZTVN10__cxxabiv120__si_class_type_infoE = external global ptr |
| @_ZTS7Derived = linkonce_odr dso_local constant [9 x i8] c"7Derived\00", comdat, align 1 |
| @_ZTI7Derived = linkonce_odr dso_local constant { ptr, ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv120__si_class_type_infoE, i64 2), ptr @_ZTS7Derived, ptr @_ZTI4Base }, comdat, align 8 |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN4BaseC2Ev(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #0 comdat align 2 { |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV4Base, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %2, align 8, !tbaa !8 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN4BaseC1Ev(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #0 comdat align 2 { |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV4Base, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %2, align 8, !tbaa !8 |
| ret void |
| } |
| |
| ; Function Attrs: mustprogress nounwind uwtable |
| define weak_odr dso_local dllexport noundef i32 @_ZNK4Base4calcEv(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #1 comdat align 2 { |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| %3 = load i32, ptr %2, align 8, !tbaa !8 |
| %4 = shl nsw i32 %3, 1 |
| ret i32 %4 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN4BaseD2Ev(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #0 comdat align 2 { |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN4BaseD1Ev(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #0 comdat align 2 { |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN4BaseD0Ev(ptr noundef nonnull align 8 dereferenceable(12) %0) unnamed_addr #0 comdat align 2 { |
| tail call void @_ZdlPv(ptr noundef nonnull %0) #5 |
| ret void |
| } |
| |
| ; Function Attrs: nobuiltin nounwind |
| declare dso_local void @_ZdlPv(ptr noundef) local_unnamed_addr #2 |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN7DerivedC2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #0 comdat align 2 { |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV4Base, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %2, align 8, !tbaa !8 |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV7Derived, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %3 = getelementptr inbounds %class.Derived, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %3, align 4, !tbaa !12 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN7DerivedC1Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #0 comdat align 2 { |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV4Base, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %2, align 8, !tbaa !8 |
| store ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV7Derived, i64 0, inrange i32 0, i64 2), ptr %0, align 8, !tbaa !5 |
| %3 = getelementptr inbounds %class.Derived, ptr %0, i64 0, i32 1 |
| store i32 0, ptr %3, align 4, !tbaa !12 |
| ret void |
| } |
| |
| ; Function Attrs: mustprogress nounwind uwtable |
| define weak_odr dso_local dllexport noundef i32 @_ZNK7Derived4calcEv(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #1 comdat align 2 { |
| %2 = getelementptr inbounds %class.Base, ptr %0, i64 0, i32 1 |
| %3 = load i32, ptr %2, align 8, !tbaa !8 |
| %4 = shl nsw i32 %3, 1 |
| %5 = getelementptr inbounds %class.Derived, ptr %0, i64 0, i32 1 |
| %6 = load i32, ptr %5, align 4, !tbaa !12 |
| %7 = add nsw i32 %4, %6 |
| ret i32 %7 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN7DerivedD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #0 comdat align 2 { |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN7DerivedD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #0 comdat align 2 { |
| ret void |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| define weak_odr dso_local dllexport void @_ZN7DerivedD0Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) unnamed_addr #0 comdat align 2 { |
| tail call void @_ZdlPv(ptr noundef nonnull %0) #5 |
| ret void |
| } |
| |
| ; Function Attrs: mustprogress nofree noinline norecurse nosync nounwind readnone willreturn uwtable |
| define dso_local void @_Z13address_takenv() #3 { |
| ret void |
| } |
| |
| ; Function Attrs: mustprogress nofree noinline norecurse nosync nounwind readnone willreturn uwtable |
| define dso_local void @_Z17address_not_takenv() local_unnamed_addr #3 { |
| ret void |
| } |
| |
| ; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable |
| define dso_local dllexport noundef nonnull ptr @_Z11get_addressv() local_unnamed_addr #4 { |
| ret ptr @_Z13address_takenv |
| } |
| |
| attributes #0 = { nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #1 = { mustprogress nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #2 = { nobuiltin nounwind "frame-pointer"="none" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #3 = { mustprogress nofree noinline norecurse nosync nounwind readnone willreturn uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #4 = { mustprogress nofree norecurse nosync nounwind readnone willreturn uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #5 = { builtin nounwind } |
| |
| !llvm.module.flags = !{!0, !1, !2, !3} |
| !llvm.ident = !{!4} |
| |
| !0 = !{i32 2, !"cfguard", i32 2} |
| !1 = !{i32 1, !"wchar_size", i32 2} |
| !2 = !{i32 8, !"PIC Level", i32 2} |
| !3 = !{i32 7, !"uwtable", i32 2} |
| !4 = !{!"clang version 16.0.0"} |
| !5 = !{!6, !6, i64 0} |
| !6 = !{!"vtable pointer", !7, i64 0} |
| !7 = !{!"Simple C++ TBAA"} |
| !8 = !{!9, !10, i64 8} |
| !9 = !{!"_ZTS4Base", !10, i64 8} |
| !10 = !{!"int", !11, i64 0} |
| !11 = !{!"omnipotent char", !7, i64 0} |
| !12 = !{!13, !10, i64 12} |
| !13 = !{!"_ZTS7Derived", !9, i64 0, !10, i64 12} |