; LLVM IR from thepowersgang/mrustc :: src/ast/expr.ll (ZN3AST14NodeVisitorDef5visitERNS_14ExprNode_MacroE)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.Span = type { ptr }
%"class.std::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }
%class.anon = type { ptr }

@.str.103 = external hidden unnamed_addr constant [17 x i8], align 1
@_ZTISt13runtime_error = external constant ptr

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nounwind
declare void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK3AST8ExprNode4spanEv(ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3AST14NodeVisitorDef5visitERNS_14ExprNode_MacroE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(425) %1) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %struct.Span, align 8
  %6 = alloca %"class.std::function", align 8
  %7 = alloca %class.anon, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %3, align 8
  br label %11

11:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK3AST8ExprNode4spanEv(ptr noundef nonnull align 8 dereferenceable(40) %12)
  call void @_ZN4SpanC1ERKS_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %13)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %14 = getelementptr inbounds %class.anon, ptr %7, i32 0, i32 0
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %15, ptr %14, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRSoEEC2IZN3AST14NodeVisitorDef5visitERNS4_14ExprNode_MacroEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  invoke void @_ZNK4Span3bugESt8functionIFvRSoEE(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef %6)
          to label %16 unwind label %19

16:                                               ; preds = %11
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  %17 = call ptr @__cxa_allocate_exception(i64 16) #5
  invoke void @_ZNSt13runtime_errorC1EPKc(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef @.str.103)
          to label %18 unwind label %23

18:                                               ; preds = %16
  call void @__cxa_throw(ptr %17, ptr @_ZTISt13runtime_error, ptr @_ZNSt13runtime_errorD1Ev) #6
  unreachable

19:                                               ; preds = %11
  %20 = landingpad { ptr, i32 }
          cleanup
  %21 = extractvalue { ptr, i32 } %20, 0
  store ptr %21, ptr %8, align 8
  %22 = extractvalue { ptr, i32 } %20, 1
  store i32 %22, ptr %9, align 4
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %28

23:                                               ; preds = %16
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %8, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %9, align 4
  call void @__cxa_free_exception(ptr %17) #5
  br label %28

27:                                               ; No predecessors!
  ret void

28:                                               ; preds = %23, %19
  %29 = load ptr, ptr %8, align 8
  %30 = load i32, ptr %9, align 4
  %31 = insertvalue { ptr, i32 } poison, ptr %29, 0
  %32 = insertvalue { ptr, i32 } %31, i32 %30, 1
  resume { ptr, i32 } %32
}

declare void @_ZN4SpanC1ERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

declare void @_ZNK4Span3bugESt8functionIFvRSoEE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRSoEEC2IZN3AST14NodeVisitorDef5visitERNS4_14ExprNode_MacroEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare ptr @__cxa_allocate_exception(i64)

declare void @_ZNSt13runtime_errorC1EPKc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #4

declare void @__cxa_free_exception(ptr)

; Function Attrs: nounwind
declare void @_ZNSt13runtime_errorD1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0

declare void @__cxa_throw(ptr, ptr, ptr)

attributes #0 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { noreturn }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.Span = type { ptr }
%"class.std::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }
%class.anon = type { ptr }

@.str.103 = external hidden unnamed_addr constant [17 x i8], align 1
@_ZTISt13runtime_error = external constant ptr

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nounwind
declare void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK3AST8ExprNode4spanEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress noreturn uwtable
define dso_local void @_ZN3AST14NodeVisitorDef5visitERNS_14ExprNode_MacroE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(425) %1) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %struct.Span, align 8
  %4 = alloca %"class.std::function", align 8
  %5 = alloca %class.anon, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %6 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK3AST8ExprNode4spanEv(ptr noundef nonnull align 8 dereferenceable(40) %1)
  call void @_ZN4SpanC1ERKS_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRSoEEC2IZN3AST14NodeVisitorDef5visitERNS4_14ExprNode_MacroEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  invoke void @_ZNK4Span3bugESt8functionIFvRSoEE(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull %4)
          to label %7 unwind label %10

7:                                                ; preds = %2
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  call void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  %8 = call ptr @__cxa_allocate_exception(i64 16) #5
  invoke void @_ZNSt13runtime_errorC1EPKc(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull @.str.103)
          to label %9 unwind label %12

9:                                                ; preds = %7
  call void @__cxa_throw(ptr nonnull %8, ptr nonnull @_ZTISt13runtime_error, ptr nonnull @_ZNSt13runtime_errorD1Ev) #6
  unreachable

10:                                               ; preds = %2
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  call void @_ZN4SpanD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br label %14

12:                                               ; preds = %7
  %13 = landingpad { ptr, i32 }
          cleanup
  call void @__cxa_free_exception(ptr %8) #5
  br label %14

14:                                               ; preds = %12, %10
  %.pn = phi { ptr, i32 } [ %13, %12 ], [ %11, %10 ]
  resume { ptr, i32 } %.pn
}

declare void @_ZN4SpanC1ERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

declare void @_ZNK4Span3bugESt8functionIFvRSoEE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRSoEEC2IZN3AST14NodeVisitorDef5visitERNS4_14ExprNode_MacroEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr

declare void @_ZNSt13runtime_errorC1EPKc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #4

declare void @__cxa_free_exception(ptr) local_unnamed_addr

; Function Attrs: nounwind
declare void @_ZNSt13runtime_errorD1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0

declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr

attributes #0 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress noreturn uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { noreturn }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass