test/DebugInfo/COFF/noreturn.ll

; RUN: llc < %s -filetype=obj | llvm-readobj --codeview - | FileCheck %s

; Generated by clang++ -S -c -std=c++11 -emit-llvm -g from the following C++11 source:
;class foo {
;public:
;[[noreturn]] void foo_member(){throw 1;}
;};
;
;[[ noreturn ]] void f() {
;    throw 1;
;}
;
;void func(){
;    foo object{};
;    object.foo_member();
;}

; CHECK-LABEL:  FunctionType: f (0x1002)
; CHECK-NEXT:   CodeOffset: ?f@@YAXXZ+0x0
; CHECK-NEXT:   Segment: 0x0
; CHECK-NEXT:   Flags [ (0xC8)
; CHECK-NEXT:     HasOptimizedDebugInfo (0x80)
; CHECK-NEXT:     IsNoInline (0x40)
; CHECK-NEXT:     IsNoReturn (0x8)
; CHECK-NEXT:   ]
; CHECK-NEXT:   DisplayName: f
; CHECK-NEXT:   LinkageName: ?f@@YAXXZ
; CHECK-LABEL:  FunctionType: foo_member (0x100B)
; CHECK-NEXT:   CodeOffset: ?foo_member@foo@@QEAAXXZ+0x0
; CHECK-NEXT:   Segment: 0x0
; CHECK-NEXT:   Flags [ (0xC8)
; CHECK-NEXT:     HasOptimizedDebugInfo (0x80)
; CHECK-NEXT:     IsNoInline (0x40)
; CHECK-NEXT:     IsNoReturn (0x8)
; CHECK-NEXT:   ]
; CHECK-NEXT:   DisplayName: foo::foo_member
; CHECK-NEXT:   LinkageName: ?foo_member@foo@@QEAAXXZ


; ModuleID = 'noreturn.cpp'
source_filename = "noreturn.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-pc-windows-msvc19.35.32216"

%rtti.TypeDescriptor2 = type { ptr, ptr, [3 x i8] }
%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 }
%eh.CatchableTypeArray.1 = type { i32, [1 x i32] }
%eh.ThrowInfo = type { i32, i32, i32, i32 }
%class.foo = type { i8 }

$"?foo_member@foo@@QEAAXXZ" = comdat any

$"??_R0H@8" = comdat any

$"_CT??_R0H@84" = comdat any

$_CTA1H = comdat any

$_TI1H = comdat any

@"??_7type_info@@6B@" = external constant ptr
@"??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { ptr @"??_7type_info@@6B@", ptr null, [3 x i8] c".H\00" }, comdat
@__ImageBase = external dso_local constant i8
@"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"??_R0H@8" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat
@_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @"_CT??_R0H@84" to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32)] }, section ".xdata", comdat
@_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (ptr @_CTA1H to i64), i64 ptrtoint (ptr @__ImageBase to i64)) to i32) }, section ".xdata", comdat
@"__const.?func@@YAXXZ.object" = private unnamed_addr constant %class.foo undef, align 1

; Function Attrs: mustprogress noinline noreturn optnone uwtable
define dso_local void @"?f@@YAXXZ"() #0 !dbg !8 {
  %1 = alloca i32, align 4
  store i32 1, ptr %1, align 4, !dbg !13
  call void @_CxxThrowException(ptr %1, ptr @_TI1H) #4, !dbg !13
  unreachable, !dbg !13
}

declare dso_local void @_CxxThrowException(ptr, ptr)

; Function Attrs: mustprogress noinline optnone uwtable
define dso_local void @"?func@@YAXXZ"() #1 !dbg !14 {
  %1 = alloca %class.foo, align 1
  call void @llvm.dbg.declare(metadata ptr %1, metadata !15, metadata !DIExpression()), !dbg !22
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %1, ptr align 1 @"__const.?func@@YAXXZ.object", i64 1, i1 false), !dbg !22
  call void @"?foo_member@foo@@QEAAXXZ"(ptr noundef nonnull align 1 dereferenceable(1) %1) #4, !dbg !23
  unreachable, !dbg !23
}

; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata) #2

; Function Attrs: argmemonly nocallback nofree nounwind willreturn
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress noinline noreturn optnone uwtable
define linkonce_odr dso_local void @"?foo_member@foo@@QEAAXXZ"(ptr noundef nonnull align 1 dereferenceable(1) %0) #0 comdat align 2 !dbg !24 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8
  call void @llvm.dbg.declare(metadata ptr %2, metadata !25, metadata !DIExpression()), !dbg !27
  %4 = load ptr, ptr %2, align 8
  store i32 1, ptr %3, align 4, !dbg !28
  call void @_CxxThrowException(ptr %3, ptr @_TI1H) #4, !dbg !28
  unreachable, !dbg !28
}

attributes #0 = { mustprogress noinline noreturn optnone 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 noinline optnone 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 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
attributes #3 = { argmemonly nocallback nofree nounwind willreturn }
attributes #4 = { noreturn }

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3, !4, !5, !6}
!llvm.ident = !{!7}

!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_11, file: !1, producer: "clang version 15.0.1", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "noreturn.cpp", directory: "C:\\llvm", checksumkind: CSK_MD5, checksum: "4431274b41f9156c1861249cc2d5fbc6")
!2 = !{i32 2, !"CodeView", i32 1}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 2}
!5 = !{i32 7, !"PIC Level", i32 2}
!6 = !{i32 7, !"uwtable", i32 2}
!7 = !{!"clang version 15.0.1"}
!8 = distinct !DISubprogram(name: "f", linkageName: "?f@@YAXXZ", scope: !9, file: !9, line: 6, type: !10, scopeLine: 6, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!9 = !DIFile(filename: "noreturn.cpp", directory: "", checksumkind: CSK_MD5, checksum: "4431274b41f9156c1861249cc2d5fbc6")
!10 = !DISubroutineType(types: !11)
!11 = !{null}
!12 = !{}
!13 = !DILocation(line: 7, scope: !8)
!14 = distinct !DISubprogram(name: "func", linkageName: "?func@@YAXXZ", scope: !9, file: !9, line: 10, type: !10, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!15 = !DILocalVariable(name: "object", scope: !14, file: !9, line: 11, type: !16)
!16 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "foo", file: !9, line: 1, size: 8, flags: DIFlagTypePassByValue, elements: !17, identifier: ".?AVfoo@@")
!17 = !{!18}
!18 = !DISubprogram(name: "foo_member", linkageName: "?foo_member@foo@@QEAAXXZ", scope: !16, file: !9, line: 3, type: !19, scopeLine: 3, flags: DIFlagPublic | DIFlagPrototyped | DIFlagNoReturn, spFlags: 0)
!19 = !DISubroutineType(types: !20)
!20 = !{null, !21}
!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!22 = !DILocation(line: 11, scope: !14)
!23 = !DILocation(line: 12, scope: !14)
!24 = distinct !DISubprogram(name: "foo_member", linkageName: "?foo_member@foo@@QEAAXXZ", scope: !16, file: !9, line: 3, type: !19, scopeLine: 3, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: DISPFlagDefinition, unit: !0, declaration: !18, retainedNodes: !12)
!25 = !DILocalVariable(name: "this", arg: 1, scope: !24, type: !26, flags: DIFlagArtificial | DIFlagObjectPointer)
!26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64)
!27 = !DILocation(line: 0, scope: !24)
!28 = !DILocation(line: 3, scope: !24)