; LLVM IR from tum-i4/obfuscation-benchmarks :: tigress-generated-programs (RandomFunc)

; 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"

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

; Function Attrs: nounwind uwtable
define dso_local void @RandomFunc(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1 x i64], align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds i64, ptr %8, i64 0
  %10 = load i64, ptr %9, align 8, !tbaa !9
  %11 = xor i64 %10, 700325083
  %12 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  store i64 %11, ptr %12, align 8, !tbaa !9
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %39, %2
  %14 = load i64, ptr %7, align 8, !tbaa !9
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds i64, ptr %15, i64 1
  %17 = load i64, ptr %16, align 8, !tbaa !9
  %18 = icmp ult i64 %14, %17
  br i1 %18, label %19, label %42

19:                                               ; preds = %13
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %20

20:                                               ; preds = %26, %19
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds i64, ptr %22, i64 1
  %24 = load i64, ptr %23, align 8, !tbaa !9
  %25 = icmp ult i64 %21, %24
  br i1 %25, label %26, label %39

26:                                               ; preds = %20
  %27 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %28 = load i64, ptr %27, align 8, !tbaa !9
  %29 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %30 = load i64, ptr %29, align 8, !tbaa !9
  %31 = lshr i64 %30, 2
  %32 = and i64 %31, 7
  %33 = or i64 %32, 1
  %34 = shl i64 %28, %33
  %35 = load i64, ptr %7, align 8, !tbaa !9
  %36 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 %35
  store i64 %34, ptr %36, align 8, !tbaa !9
  %37 = load i64, ptr %6, align 8, !tbaa !9
  %38 = add i64 %37, 2
  store i64 %38, ptr %6, align 8, !tbaa !9
  br label %20, !llvm.loop !11

39:                                               ; preds = %20
  %40 = load i64, ptr %7, align 8, !tbaa !9
  %41 = add i64 %40, 2
  store i64 %41, ptr %7, align 8, !tbaa !9
  br label %13, !llvm.loop !13

42:                                               ; preds = %13
  %43 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %44 = load i64, ptr %43, align 8, !tbaa !9
  %45 = xor i64 %44, 255873917
  %46 = or i64 %45, 604794402
  %47 = load ptr, ptr %4, align 8, !tbaa !5
  %48 = getelementptr inbounds i64, ptr %47, i64 0
  store i64 %46, ptr %48, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

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

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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @RandomFunc(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = load i64, ptr %0, align 8, !tbaa !5
  %4 = xor i64 %3, 700325083
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %.not = icmp eq i64 %6, 0
  br i1 %.not, label %._crit_edge, label %.preheader.preheader

.preheader.preheader:                             ; preds = %2
  %7 = add i64 %6, -1
  %8 = lshr i64 %7, 1
  %9 = add nuw i64 %8, 1
  %xtraiter = and i64 %9, 3
  %10 = icmp ult i64 %6, 7
  %unroll_iter = and i64 %9, -4
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.epilog-lcssa
  %.013 = phi i64 [ %31, %.epilog-lcssa ], [ 0, %.preheader.preheader ]
  %.sroa.0.012 = phi i64 [ %.lcssa, %.epilog-lcssa ], [ %4, %.preheader.preheader ]
  br i1 %10, label %.unr-lcssa, label %.preheader.new

.preheader.new:                                   ; preds = %.preheader, %.preheader.new
  %.sroa.0.110 = phi i64 [ %26, %.preheader.new ], [ %.sroa.0.012, %.preheader ]
  %niter = phi i64 [ %niter.next.3, %.preheader.new ], [ 0, %.preheader ]
  %11 = lshr i64 %.sroa.0.110, 2
  %12 = and i64 %11, 6
  %13 = or disjoint i64 %12, 1
  %14 = shl i64 %.sroa.0.110, %13
  %15 = lshr i64 %14, 2
  %16 = and i64 %15, 6
  %17 = or disjoint i64 %16, 1
  %18 = shl i64 %14, %17
  %19 = lshr exact i64 %18, 2
  %20 = and i64 %19, 6
  %21 = or disjoint i64 %20, 1
  %22 = shl i64 %18, %21
  %23 = lshr exact i64 %22, 2
  %24 = and i64 %23, 6
  %25 = or disjoint i64 %24, 1
  %26 = shl i64 %22, %25
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3.not = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3.not, label %.unr-lcssa, label %.preheader.new, !llvm.loop !9

.unr-lcssa:                                       ; preds = %.preheader.new, %.preheader
  %.lcssa.ph = phi i64 [ poison, %.preheader ], [ %26, %.preheader.new ]
  %.sroa.0.110.unr = phi i64 [ %.sroa.0.012, %.preheader ], [ %26, %.preheader.new ]
  br i1 %lcmp.mod.not, label %.epilog-lcssa, label %.epil.preheader

.epil.preheader:                                  ; preds = %.unr-lcssa, %.epil.preheader
  %.sroa.0.110.epil = phi i64 [ %30, %.epil.preheader ], [ %.sroa.0.110.unr, %.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.epil.preheader ], [ 0, %.unr-lcssa ]
  %27 = lshr i64 %.sroa.0.110.epil, 2
  %28 = and i64 %27, 6
  %29 = or disjoint i64 %28, 1
  %30 = shl i64 %.sroa.0.110.epil, %29
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.epilog-lcssa, label %.epil.preheader, !llvm.loop !11

.epilog-lcssa:                                    ; preds = %.epil.preheader, %.unr-lcssa
  %.lcssa = phi i64 [ %.lcssa.ph, %.unr-lcssa ], [ %30, %.epil.preheader ]
  %31 = add nuw i64 %.013, 2
  %32 = icmp ult i64 %31, %6
  br i1 %32, label %.preheader, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %.epilog-lcssa, %2
  %.sroa.0.0.lcssa = phi i64 [ %4, %2 ], [ %.lcssa, %.epilog-lcssa ]
  %33 = and i64 %.sroa.0.0.lcssa, -604794403
  %34 = xor i64 %33, 793542527
  store i64 %34, ptr %1, align 8, !tbaa !5
  ret void
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}
!13 = distinct !{!13, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass