; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_Parser (parseReturnStatement__)

; 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.tag_____IAllocator__ = type { ptr, ptr, ptr, ptr }
%struct.tag_____ReturnStatement__ = type { ptr, %struct.Node__ }
%struct.Node__ = type { i32, ptr }
%struct.tag_____ParserState__ = type { %struct.string__, i32, ptr, ptr, i32, i32, i32, i32, i32, ptr, %struct.tag_____IntRange__, i32, i32, ptr, i32, ptr, ptr, ptr }
%struct.string__ = type { ptr, i32 }
%struct.tag_____IntRange__ = type { i32, i32 }
%struct.tag_____FunctionDef__ = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.Node__, ptr, ptr, ptr, ptr, i32, ptr, %struct.string__, %struct.string__, %struct.tag_____Tag__, i32, ptr, ptr, ptr, ptr, %struct.string__ }
%struct.tag_____Tag__ = type { ptr, ptr }

@top_____currentAllocator__ = external dso_local thread_local global %struct.tag_____IAllocator__, align 8

; 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 speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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

; Function Attrs: nounwind uwtable
declare dso_local void @Parser__readToken__(ptr noundef) #4

; Function Attrs: nounwind uwtable
declare dso_local { i32, ptr } @Parser__tryParseExpression__(ptr noundef, i32 noundef, i8 noundef zeroext) #4

; Function Attrs: nounwind uwtable
define dso_local ptr @Parser__parseReturnStatement__(ptr noundef %0, i8 noundef zeroext %1) #4 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca ptr, align 8
  %6 = alloca %struct.tag_____ReturnStatement__, align 8
  %7 = alloca ptr, align 8
  %8 = alloca %struct.Node__, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i8 %1, ptr %4, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %9 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @top_____currentAllocator__)
  %10 = getelementptr inbounds %struct.tag_____IAllocator__, ptr %9, i32 0, i32 1
  %11 = load ptr, ptr %10, align 8, !tbaa !10
  %12 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @top_____currentAllocator__)
  %13 = getelementptr inbounds %struct.tag_____IAllocator__, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = call ptr %11(ptr noundef %14, i64 noundef 24)
  store ptr %15, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #5
  call void @llvm.memset.p0.i64(ptr align 8 %6, i8 0, i64 24, i1 false)
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.tag_____ParserState__, ptr %16, i32 0, i32 3
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = getelementptr inbounds %struct.tag_____ReturnStatement__, ptr %6, i32 0, i32 0
  store ptr %18, ptr %19, align 8, !tbaa !18
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %20, ptr align 8 %6, i64 24, i1 false), !tbaa.struct !21
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %21, ptr %7, align 8, !tbaa !5
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  call void @Parser__readToken__(ptr noundef %22)
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.tag_____ReturnStatement__, ptr %23, i32 0, i32 1
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #5
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load i8, ptr %4, align 1, !tbaa !9
  %27 = call { i32, ptr } @Parser__tryParseExpression__(ptr noundef %25, i32 noundef 0, i8 noundef zeroext %26)
  %28 = getelementptr inbounds { i32, ptr }, ptr %8, i32 0, i32 0
  %29 = extractvalue { i32, ptr } %27, 0
  store i32 %29, ptr %28, align 8
  %30 = getelementptr inbounds { i32, ptr }, ptr %8, i32 0, i32 1
  %31 = extractvalue { i32, ptr } %27, 1
  store ptr %31, ptr %30, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %24, ptr align 8 %8, i64 16, i1 false), !tbaa.struct !23
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #5
  %32 = load ptr, ptr %7, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.tag_____ReturnStatement__, ptr %32, i32 0, i32 1
  %34 = getelementptr inbounds %struct.Node__, ptr %33, i32 0, i32 1
  %35 = load ptr, ptr %34, align 8, !tbaa !24
  %36 = icmp ne ptr %35, null
  br i1 %36, label %37, label %48

37:                                               ; preds = %2
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.tag_____ParserState__, ptr %38, i32 0, i32 16
  %40 = load ptr, ptr %39, align 8, !tbaa !25
  %41 = getelementptr inbounds %struct.tag_____FunctionDef__, ptr %40, i32 0, i32 12
  %42 = load i32, ptr %41, align 8, !tbaa !26
  %43 = or i32 %42, 1
  %44 = load ptr, ptr %3, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.tag_____ParserState__, ptr %44, i32 0, i32 16
  %46 = load ptr, ptr %45, align 8, !tbaa !25
  %47 = getelementptr inbounds %struct.tag_____FunctionDef__, ptr %46, i32 0, i32 12
  store i32 %43, ptr %47, align 8, !tbaa !26
  br label %48

48:                                               ; preds = %37, %2
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %49
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !6, i64 8}
!11 = !{!"tag_____IAllocator__", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!12 = !{!11, !6, i64 0}
!13 = !{!14, !6, i64 32}
!14 = !{!"tag_____ParserState__", !15, i64 0, !16, i64 16, !6, i64 24, !6, i64 32, !16, i64 40, !16, i64 44, !16, i64 48, !16, i64 52, !16, i64 56, !6, i64 64, !17, i64 72, !16, i64 80, !16, i64 84, !6, i64 88, !16, i64 96, !6, i64 104, !6, i64 112, !6, i64 120}
!15 = !{!"", !6, i64 0, !16, i64 8}
!16 = !{!"int", !7, i64 0}
!17 = !{!"tag_____IntRange__", !16, i64 0, !16, i64 4}
!18 = !{!19, !6, i64 0}
!19 = !{!"tag_____ReturnStatement__", !6, i64 0, !20, i64 8}
!20 = !{!"", !16, i64 0, !6, i64 8}
!21 = !{i64 0, i64 8, !5, i64 8, i64 4, !22, i64 16, i64 8, !5}
!22 = !{!16, !16, i64 0}
!23 = !{i64 0, i64 4, !22, i64 8, i64 8, !5}
!24 = !{!19, !6, i64 16}
!25 = !{!14, !6, i64 112}
!26 = !{!27, !16, i64 104}
!27 = !{!"tag_____FunctionDef__", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !20, i64 56, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !16, i64 104, !6, i64 112, !15, i64 120, !15, i64 136, !28, i64 152, !16, i64 168, !6, i64 176, !6, i64 184, !6, i64 192, !6, i64 200, !15, i64 208}
!28 = !{!"tag_____Tag__", !6, i64 0, !6, i64 8}


; 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.tag_____IAllocator__ = type { ptr, ptr, ptr, ptr }

@top_____currentAllocator__ = external dso_local thread_local local_unnamed_addr global %struct.tag_____IAllocator__, align 8

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare dso_local void @Parser__readToken__(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local { i32, ptr } @Parser__tryParseExpression__(ptr noundef, i32 noundef, i8 noundef zeroext) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @Parser__parseReturnStatement__(ptr noundef %0, i8 noundef zeroext %1) local_unnamed_addr #2 {
  %3 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @top_____currentAllocator__)
  %4 = getelementptr inbounds i8, ptr %3, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !10
  %7 = tail call ptr %5(ptr noundef %6, i64 noundef 24) #3
  %8 = getelementptr inbounds i8, ptr %0, i64 32
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  store ptr %9, ptr %7, align 8, !tbaa !16
  %.sroa.5.0..sroa_idx = getelementptr inbounds i8, ptr %7, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %.sroa.5.0..sroa_idx, i8 0, i64 16, i1 false)
  tail call void @Parser__readToken__(ptr noundef %0)
  %10 = tail call { i32, ptr } @Parser__tryParseExpression__(ptr noundef %0, i32 noundef 0, i8 noundef zeroext %1)
  %11 = extractvalue { i32, ptr } %10, 0
  %12 = extractvalue { i32, ptr } %10, 1
  store i32 %11, ptr %.sroa.5.0..sroa_idx, align 8, !tbaa !17
  %.sroa.41.0..sroa_idx = getelementptr inbounds i8, ptr %7, i64 16
  store ptr %12, ptr %.sroa.41.0..sroa_idx, align 8, !tbaa !16
  %.not = icmp eq ptr %12, null
  br i1 %.not, label %19, label %13

13:                                               ; preds = %2
  %14 = getelementptr inbounds i8, ptr %0, i64 112
  %15 = load ptr, ptr %14, align 8, !tbaa !18
  %16 = getelementptr inbounds i8, ptr %15, i64 104
  %17 = load i32, ptr %16, align 8, !tbaa !19
  %18 = or i32 %17, 1
  store i32 %18, ptr %16, align 8, !tbaa !19
  br label %19

19:                                               ; preds = %13, %2
  ret ptr %7
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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, !7, i64 8}
!6 = !{!"tag_____IAllocator__", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 0}
!11 = !{!12, !7, i64 32}
!12 = !{!"tag_____ParserState__", !13, i64 0, !14, i64 16, !7, i64 24, !7, i64 32, !14, i64 40, !14, i64 44, !14, i64 48, !14, i64 52, !14, i64 56, !7, i64 64, !15, i64 72, !14, i64 80, !14, i64 84, !7, i64 88, !14, i64 96, !7, i64 104, !7, i64 112, !7, i64 120}
!13 = !{!"", !7, i64 0, !14, i64 8}
!14 = !{!"int", !8, i64 0}
!15 = !{!"tag_____IntRange__", !14, i64 0, !14, i64 4}
!16 = !{!7, !7, i64 0}
!17 = !{!14, !14, i64 0}
!18 = !{!12, !7, i64 112}
!19 = !{!20, !14, i64 104}
!20 = !{!"tag_____FunctionDef__", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !21, i64 56, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !14, i64 104, !7, i64 112, !13, i64 120, !13, i64 136, !22, i64 152, !14, i64 168, !7, i64 176, !7, i64 184, !7, i64 192, !7, i64 200, !13, i64 208}
!21 = !{!"", !14, i64 0, !7, i64 8}
!22 = !{!"tag_____Tag__", !7, i64 0, !7, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass