; LLVM IR from clausecker/24puzzle :: compact (compare_cp_nomask)

; 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.compact_puzzle = type { i64, i64 }

; 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: nounwind uwtable
define dso_local i32 @compare_cp_nomask(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %11, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %12, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.compact_puzzle, ptr %13, i32 0, i32 1
  %15 = load i64, ptr %14, align 8, !tbaa !9
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.compact_puzzle, ptr %16, i32 0, i32 1
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = icmp ne i64 %15, %18
  br i1 %19, label %20, label %38

20:                                               ; preds = %2
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.compact_puzzle, ptr %21, i32 0, i32 1
  %23 = load i64, ptr %22, align 8, !tbaa !9
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.compact_puzzle, ptr %24, i32 0, i32 1
  %26 = load i64, ptr %25, align 8, !tbaa !9
  %27 = icmp ugt i64 %23, %26
  %28 = zext i1 %27 to i32
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.compact_puzzle, ptr %29, i32 0, i32 1
  %31 = load i64, ptr %30, align 8, !tbaa !9
  %32 = load ptr, ptr %7, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.compact_puzzle, ptr %32, i32 0, i32 1
  %34 = load i64, ptr %33, align 8, !tbaa !9
  %35 = icmp ult i64 %31, %34
  %36 = zext i1 %35 to i32
  %37 = sub nsw i32 %28, %36
  store i32 %37, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %56

38:                                               ; preds = %2
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.compact_puzzle, ptr %39, i32 0, i32 0
  %41 = load i64, ptr %40, align 8, !tbaa !12
  %42 = and i64 %41, -16
  store i64 %42, ptr %8, align 8, !tbaa !13
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.compact_puzzle, ptr %43, i32 0, i32 0
  %45 = load i64, ptr %44, align 8, !tbaa !12
  %46 = and i64 %45, -16
  store i64 %46, ptr %9, align 8, !tbaa !13
  %47 = load i64, ptr %8, align 8, !tbaa !13
  %48 = load i64, ptr %9, align 8, !tbaa !13
  %49 = icmp ugt i64 %47, %48
  %50 = zext i1 %49 to i32
  %51 = load i64, ptr %8, align 8, !tbaa !13
  %52 = load i64, ptr %9, align 8, !tbaa !13
  %53 = icmp ult i64 %51, %52
  %54 = zext i1 %53 to i32
  %55 = sub nsw i32 %50, %54
  store i32 %55, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %56

56:                                               ; preds = %38, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %57 = load i32, ptr %3, align 4
  ret i32 %57
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"compact_puzzle", !11, i64 0, !11, i64 8}
!11 = !{!"long long", !7, i64 0}
!12 = !{!10, !11, i64 0}
!13 = !{!11, !11, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local range(i32 -1, 2) i32 @compare_cp_nomask(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %.not = icmp eq i64 %4, %6
  br i1 %.not, label %10, label %7

7:                                                ; preds = %2
  %8 = icmp ugt i64 %4, %6
  %9 = icmp ult i64 %4, %6
  br label %17

10:                                               ; preds = %2
  %11 = load i64, ptr %0, align 8, !tbaa !10
  %12 = and i64 %11, -16
  %13 = load i64, ptr %1, align 8, !tbaa !10
  %14 = and i64 %13, -16
  %15 = icmp ugt i64 %12, %14
  %16 = icmp ult i64 %12, %14
  br label %17

17:                                               ; preds = %10, %7
  %.sink17 = phi i1 [ %16, %10 ], [ %9, %7 ]
  %.sink.in = phi i1 [ %15, %10 ], [ %8, %7 ]
  %.sink = zext i1 %.sink.in to i32
  %.neg = sext i1 %.sink17 to i32
  %18 = add nsw i32 %.neg, %.sink
  ret i32 %18
}

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, !7, i64 8}
!6 = !{!"compact_puzzle", !7, i64 0, !7, i64 8}
!7 = !{!"long long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 0}


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