; LLVM IR from thepowersgang/mrustc :: src/expand/mod.ll (Z15Expand_BareExprRKN3AST5CrateERKNS_6ModuleERNS_9ExprNodePE)

; 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.ExpandState = type <{ ptr, %struct.LList, i32, i8, i8, [2 x i8] }>
%struct.LList = type { ptr, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11Expand_ExprRK11ExpandStateRN3AST9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(30), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15Expand_BareExprRKN3AST5CrateERKNS_6ModuleERNS_9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(1112) %0, ptr noundef nonnull align 8 dereferenceable(480) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %struct.ExpandState, align 8
  %8 = alloca %struct.LList, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN5LListIPKN3AST6ModuleEEC2EPKS4_S3_(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef null, ptr noundef %10)
  %11 = getelementptr inbounds { ptr, ptr }, ptr %8, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8
  %13 = getelementptr inbounds { ptr, ptr }, ptr %8, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8
  call void @_ZN11ExpandStateC2ERN3AST5CrateE5LListIPKNS0_6ModuleEE10ExpandMode(ptr noundef nonnull align 8 dereferenceable(30) %7, ptr noundef nonnull align 8 dereferenceable(1112) %9, ptr %12, ptr %14, i32 noundef 0)
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  call void @_Z11Expand_ExprRK11ExpandStateRN3AST9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(30) %7, ptr noundef nonnull align 8 dereferenceable(8) %15)
  %16 = getelementptr inbounds %struct.ExpandState, ptr %7, i32 0, i32 2
  store i32 2, ptr %16, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5LListIPKN3AST6ModuleEEC2EPKS4_S3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, ptr noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11ExpandStateC2ERN3AST5CrateE5LListIPKNS0_6ModuleEE10ExpandMode(ptr noundef nonnull align 8 dereferenceable(30), ptr noundef nonnull align 8 dereferenceable(1112), ptr, ptr, i32 noundef) unnamed_addr #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nounwind }

!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"}
!9 = !{!10, !12, i64 24}
!10 = !{!"_ZTS11ExpandState", !6, i64 0, !11, i64 8, !12, i64 24, !13, i64 28, !13, i64 29}
!11 = !{!"_ZTS5LListIPKN3AST6ModuleEE", !6, i64 0, !6, i64 8}
!12 = !{!"_ZTS10ExpandMode", !7, i64 0}
!13 = !{!"bool", !7, i64 0}


; 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.ExpandState = type <{ ptr, %struct.LList, i32, i8, i8, [2 x i8] }>
%struct.LList = type { ptr, ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11Expand_ExprRK11ExpandStateRN3AST9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(30), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15Expand_BareExprRKN3AST5CrateERKNS_6ModuleERNS_9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(1112) %0, ptr noundef nonnull align 8 dereferenceable(480) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) local_unnamed_addr #1 {
  %4 = alloca %struct.ExpandState, align 8
  %5 = alloca %struct.LList, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #3
  call void @_ZN5LListIPKN3AST6ModuleEEC2EPKS4_S3_(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef null, ptr noundef nonnull %1)
  %6 = load ptr, ptr %5, align 8
  %7 = getelementptr inbounds i8, ptr %5, i64 8
  %8 = load ptr, ptr %7, align 8
  call void @_ZN11ExpandStateC2ERN3AST5CrateE5LListIPKNS0_6ModuleEE10ExpandMode(ptr noundef nonnull align 8 dereferenceable(30) %4, ptr noundef nonnull align 8 dereferenceable(1112) %0, ptr %6, ptr %8, i32 noundef 0)
  call void @_Z11Expand_ExprRK11ExpandStateRN3AST9ExprNodePE(ptr noundef nonnull align 8 dereferenceable(30) %4, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5LListIPKN3AST6ModuleEEC2EPKS4_S3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, ptr noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11ExpandStateC2ERN3AST5CrateE5LListIPKNS0_6ModuleEE10ExpandMode(ptr noundef nonnull align 8 dereferenceable(30), ptr noundef nonnull align 8 dereferenceable(1112), ptr, ptr, i32 noundef) unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nounwind }

!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)"}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass