; LLVM IR from AF-GRILL/DISPluginForUnreal :: Source/ThirdParty/include/dis6/EightByteChunk.ll (ZNK3DIS14EightByteChunkeqERKS0_)

; 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::EightByteChunk" = type { ptr, [8 x i8] }

; 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 nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK3DIS14EightByteChunkeqERKS0_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = 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
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #2
  store i8 0, ptr %6, align 1, !tbaa !11
  br label %8

8:                                                ; preds = %30, %2
  %9 = load i8, ptr %6, align 1, !tbaa !11
  %10 = zext i8 %9 to i32
  %11 = icmp slt i32 %10, 8
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #2
  br label %33

13:                                               ; preds = %8
  %14 = getelementptr inbounds %"class.DIS::EightByteChunk", ptr %7, i32 0, i32 1
  %15 = load i8, ptr %6, align 1, !tbaa !11
  %16 = zext i8 %15 to i64
  %17 = getelementptr inbounds [8 x i8], ptr %14, i64 0, i64 %16
  %18 = load i8, ptr %17, align 1, !tbaa !11
  %19 = sext i8 %18 to i32
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %"class.DIS::EightByteChunk", ptr %20, i32 0, i32 1
  %22 = load i8, ptr %6, align 1, !tbaa !11
  %23 = zext i8 %22 to i64
  %24 = getelementptr inbounds [8 x i8], ptr %21, i64 0, i64 %23
  %25 = load i8, ptr %24, align 1, !tbaa !11
  %26 = sext i8 %25 to i32
  %27 = icmp eq i32 %19, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %13
  store i8 0, ptr %5, align 1, !tbaa !9
  br label %29

29:                                               ; preds = %28, %13
  br label %30

30:                                               ; preds = %29
  %31 = load i8, ptr %6, align 1, !tbaa !11
  %32 = add i8 %31, 1
  store i8 %32, ptr %6, align 1, !tbaa !11
  br label %8, !llvm.loop !12

33:                                               ; preds = %12
  %34 = load i8, ptr %5, align 1, !tbaa !9, !range !14, !noundef !15
  %35 = trunc i8 %34 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  ret i1 %35
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{i8 0, i8 2}
!15 = !{}


; 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 @_ZNK3DIS14EightByteChunkeqERKS0_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %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 <8 x i8>, ptr %3, align 8, !tbaa !5
  %6 = load <8 x i8>, ptr %4, align 8, !tbaa !5
  %7 = icmp eq <8 x i8> %5, %6
  %8 = freeze <8 x i1> %7
  %9 = bitcast <8 x i1> %8 to i8
  %10 = icmp eq i8 %9, -1
  ret i1 %10
}

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"}


; Effective O3 passes: AggressiveInstCombinePass,EarlyCSEPass,GVNPass,GlobalDCEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LICMPass,LoopRotatePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass