; LLVM IR from AF-GRILL/DISPluginForUnreal :: Source/ThirdParty/include/dis7/PduHeader.ll (ZNK3DIS9PduHeadereqERKS0_)

; 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"

%"class.DIS::PduHeader" = type <{ ptr, i8, i8, i8, i8, i32, i8, i8, i16, i8, [3 x i8] }>

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK3DIS9PduHeadereqERKS0_(ptr noundef nonnull align 8 dereferenceable(21) %0, ptr noundef nonnull align 8 dereferenceable(21) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  store i8 1, ptr %5, align 1, !tbaa !9
  %7 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 1
  %8 = load i8, ptr %7, align 8, !tbaa !11
  %9 = zext i8 %8 to i32
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %"class.DIS::PduHeader", ptr %10, i32 0, i32 1
  %12 = load i8, ptr %11, align 8, !tbaa !11
  %13 = zext i8 %12 to i32
  %14 = icmp eq i32 %9, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %2
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %16

16:                                               ; preds = %15, %2
  %17 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 2
  %18 = load i8, ptr %17, align 1, !tbaa !15
  %19 = zext i8 %18 to i32
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %"class.DIS::PduHeader", ptr %20, i32 0, i32 2
  %22 = load i8, ptr %21, align 1, !tbaa !15
  %23 = zext i8 %22 to i32
  %24 = icmp eq i32 %19, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %16
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %26

26:                                               ; preds = %25, %16
  %27 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 3
  %28 = load i8, ptr %27, align 2, !tbaa !16
  %29 = zext i8 %28 to i32
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %"class.DIS::PduHeader", ptr %30, i32 0, i32 3
  %32 = load i8, ptr %31, align 2, !tbaa !16
  %33 = zext i8 %32 to i32
  %34 = icmp eq i32 %29, %33
  br i1 %34, label %36, label %35

35:                                               ; preds = %26
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %36

36:                                               ; preds = %35, %26
  %37 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 4
  %38 = load i8, ptr %37, align 1, !tbaa !17
  %39 = zext i8 %38 to i32
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds %"class.DIS::PduHeader", ptr %40, i32 0, i32 4
  %42 = load i8, ptr %41, align 1, !tbaa !17
  %43 = zext i8 %42 to i32
  %44 = icmp eq i32 %39, %43
  br i1 %44, label %46, label %45

45:                                               ; preds = %36
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %46

46:                                               ; preds = %45, %36
  %47 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 5
  %48 = load i32, ptr %47, align 4, !tbaa !18
  %49 = load ptr, ptr %4, align 8, !tbaa !5
  %50 = getelementptr inbounds %"class.DIS::PduHeader", ptr %49, i32 0, i32 5
  %51 = load i32, ptr %50, align 4, !tbaa !18
  %52 = icmp eq i32 %48, %51
  br i1 %52, label %54, label %53

53:                                               ; preds = %46
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %54

54:                                               ; preds = %53, %46
  %55 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 6
  %56 = load i8, ptr %55, align 8, !tbaa !19
  %57 = zext i8 %56 to i32
  %58 = load ptr, ptr %4, align 8, !tbaa !5
  %59 = getelementptr inbounds %"class.DIS::PduHeader", ptr %58, i32 0, i32 6
  %60 = load i8, ptr %59, align 8, !tbaa !19
  %61 = zext i8 %60 to i32
  %62 = icmp eq i32 %57, %61
  br i1 %62, label %64, label %63

63:                                               ; preds = %54
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %64

64:                                               ; preds = %63, %54
  %65 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 8
  %66 = load i16, ptr %65, align 2, !tbaa !20
  %67 = zext i16 %66 to i32
  %68 = load ptr, ptr %4, align 8, !tbaa !5
  %69 = getelementptr inbounds %"class.DIS::PduHeader", ptr %68, i32 0, i32 8
  %70 = load i16, ptr %69, align 2, !tbaa !20
  %71 = zext i16 %70 to i32
  %72 = icmp eq i32 %67, %71
  br i1 %72, label %74, label %73

73:                                               ; preds = %64
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %74

74:                                               ; preds = %73, %64
  %75 = getelementptr inbounds %"class.DIS::PduHeader", ptr %6, i32 0, i32 9
  %76 = load i8, ptr %75, align 4, !tbaa !21
  %77 = zext i8 %76 to i32
  %78 = load ptr, ptr %4, align 8, !tbaa !5
  %79 = getelementptr inbounds %"class.DIS::PduHeader", ptr %78, i32 0, i32 9
  %80 = load i8, ptr %79, align 4, !tbaa !21
  %81 = zext i8 %80 to i32
  %82 = icmp eq i32 %77, %81
  br i1 %82, label %84, label %83

83:                                               ; preds = %74
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %84

84:                                               ; preds = %83, %74
  %85 = load i8, ptr %5, align 1, !tbaa !9, !range !22, !noundef !23
  %86 = trunc i8 %85 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  ret i1 %86
}

; 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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!12, !7, i64 8}
!12 = !{!"_ZTSN3DIS9PduHeaderE", !7, i64 8, !7, i64 9, !7, i64 10, !7, i64 11, !13, i64 12, !7, i64 16, !14, i64 18, !7, i64 20}
!13 = !{!"int", !7, i64 0}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !7, i64 9}
!16 = !{!12, !7, i64 10}
!17 = !{!12, !7, i64 11}
!18 = !{!12, !13, i64 12}
!19 = !{!12, !7, i64 16}
!20 = !{!12, !14, i64 18}
!21 = !{!12, !7, i64 20}
!22 = !{i8 0, i8 2}
!23 = !{}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef zeroext i1 @_ZNK3DIS9PduHeadereqERKS0_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(21) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(21) %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  %5 = load <4 x i8>, ptr %3, align 8, !tbaa !5
  %6 = load <4 x i8>, ptr %4, align 8, !tbaa !5
  %7 = icmp eq <4 x i8> %5, %6
  %8 = getelementptr inbounds i8, ptr %0, i64 12
  %9 = load i32, ptr %8, align 4, !tbaa !8
  %10 = getelementptr inbounds i8, ptr %1, i64 12
  %11 = load i32, ptr %10, align 4, !tbaa !8
  %12 = icmp eq i32 %9, %11
  %13 = getelementptr inbounds i8, ptr %0, i64 16
  %14 = load i8, ptr %13, align 8, !tbaa !12
  %15 = getelementptr inbounds i8, ptr %1, i64 16
  %16 = load i8, ptr %15, align 8, !tbaa !12
  %17 = icmp eq i8 %14, %16
  %18 = getelementptr inbounds i8, ptr %0, i64 18
  %19 = load i16, ptr %18, align 2, !tbaa !13
  %20 = getelementptr inbounds i8, ptr %1, i64 18
  %21 = load i16, ptr %20, align 2, !tbaa !13
  %22 = icmp eq i16 %19, %21
  %23 = getelementptr inbounds i8, ptr %0, i64 20
  %24 = load i8, ptr %23, align 4, !tbaa !14
  %25 = getelementptr inbounds i8, ptr %1, i64 20
  %26 = load i8, ptr %25, align 4, !tbaa !14
  %27 = icmp eq i8 %24, %26
  %28 = freeze <4 x i1> %7
  %29 = bitcast <4 x i1> %28 to i4
  %30 = icmp eq i4 %29, -1
  %.fr = freeze i1 %27
  %op.rdx = and i1 %.fr, %30
  %31 = freeze i1 %17
  %32 = and i1 %op.rdx, %31
  %.fr17 = freeze i1 %12
  %op.rdx15 = and i1 %32, %.fr17
  %op.rdx16 = select i1 %op.rdx15, i1 %22, i1 false
  ret i1 %op.rdx16
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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" }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !10, i64 12}
!9 = !{!"_ZTSN3DIS9PduHeaderE", !6, i64 8, !6, i64 9, !6, i64 10, !6, i64 11, !10, i64 12, !6, i64 16, !11, i64 18, !6, i64 20}
!10 = !{!"int", !6, i64 0}
!11 = !{!"short", !6, i64 0}
!12 = !{!9, !6, i64 16}
!13 = !{!9, !11, i64 18}
!14 = !{!9, !6, i64 20}


; Effective O3 passes: GlobalDCEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass