; 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: nounwind uwtable
define dso_local void @RandomFunc(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1 x i64], align 8
  %6 = 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
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds i64, ptr %7, i64 0
  %9 = load i64, ptr %8, align 8, !tbaa !9
  %10 = or i64 %9, 51238316
  %11 = lshr i64 %10, 3
  %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 %6, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %19, %2
  %14 = load i64, ptr %6, 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 %30

19:                                               ; preds = %13
  %20 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %22 = lshr i64 %21, 3
  %23 = and i64 %22, 7
  %24 = or i64 %23, 1
  %25 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %26 = load i64, ptr %25, align 8, !tbaa !9
  %27 = shl i64 %26, %24
  store i64 %27, ptr %25, align 8, !tbaa !9
  %28 = load i64, ptr %6, align 8, !tbaa !9
  %29 = add i64 %28, 2
  store i64 %29, ptr %6, align 8, !tbaa !9
  br label %13, !llvm.loop !11

30:                                               ; preds = %13
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %31

31:                                               ; preds = %37, %30
  %32 = load i64, ptr %6, align 8, !tbaa !9
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds i64, ptr %33, i64 1
  %35 = load i64, ptr %34, align 8, !tbaa !9
  %36 = icmp ult i64 %32, %35
  br i1 %36, label %37, label %50

37:                                               ; preds = %31
  %38 = load i64, ptr %6, align 8, !tbaa !9
  %39 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 %38
  %40 = load i64, ptr %39, align 8, !tbaa !9
  %41 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %42 = load i64, ptr %41, align 8, !tbaa !9
  %43 = lshr i64 %42, 3
  %44 = and i64 %43, 7
  %45 = or i64 %44, 1
  %46 = shl i64 %40, %45
  %47 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  store i64 %46, ptr %47, align 8, !tbaa !9
  %48 = load i64, ptr %6, align 8, !tbaa !9
  %49 = add i64 %48, 2
  store i64 %49, ptr %6, align 8, !tbaa !9
  br label %31, !llvm.loop !13

50:                                               ; preds = %31
  %51 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %52 = load i64, ptr %51, align 8, !tbaa !9
  %53 = xor i64 %52, 736209367
  %54 = shl i64 %53, 5
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = getelementptr inbounds i64, ptr %55, i64 0
  store i64 %54, ptr %56, align 8, !tbaa !9
  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.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 = { 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/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 = lshr i64 %3, 3
  %5 = or i64 %4, 6404789
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i64, ptr %6, align 8, !tbaa !5
  %.not = icmp eq i64 %7, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %8 = add i64 %7, -1
  %9 = lshr i64 %8, 1
  %10 = add nuw i64 %9, 1
  %xtraiter = and i64 %10, 3
  %11 = icmp ult i64 %7, 7
  br i1 %11, label %.lr.ph15.preheader.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %10, -4
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.sroa.0.010 = phi i64 [ %5, %.lr.ph.preheader.new ], [ %27, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %12 = lshr i64 %.sroa.0.010, 3
  %13 = and i64 %12, 6
  %14 = or disjoint i64 %13, 1
  %15 = shl i64 %.sroa.0.010, %14
  %16 = lshr i64 %15, 3
  %17 = and i64 %16, 6
  %18 = or disjoint i64 %17, 1
  %19 = shl i64 %15, %18
  %20 = lshr i64 %19, 3
  %21 = and i64 %20, 6
  %22 = or disjoint i64 %21, 1
  %23 = shl i64 %19, %22
  %24 = lshr exact i64 %23, 3
  %25 = and i64 %24, 6
  %26 = or disjoint i64 %25, 1
  %27 = shl i64 %23, %26
  %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 %.lr.ph15.preheader.unr-lcssa, label %.lr.ph, !llvm.loop !9

.lr.ph15.preheader.unr-lcssa:                     ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa22.ph = phi i64 [ poison, %.lr.ph.preheader ], [ %27, %.lr.ph ]
  %.sroa.0.010.unr = phi i64 [ %5, %.lr.ph.preheader ], [ %27, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph15.preheader, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %.lr.ph15.preheader.unr-lcssa, %.lr.ph.epil
  %.sroa.0.010.epil = phi i64 [ %31, %.lr.ph.epil ], [ %.sroa.0.010.unr, %.lr.ph15.preheader.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %.lr.ph15.preheader.unr-lcssa ]
  %28 = lshr i64 %.sroa.0.010.epil, 3
  %29 = and i64 %28, 6
  %30 = or disjoint i64 %29, 1
  %31 = shl i64 %.sroa.0.010.epil, %30
  %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 %.lr.ph15.preheader, label %.lr.ph.epil, !llvm.loop !11

.lr.ph15.preheader:                               ; preds = %.lr.ph.epil, %.lr.ph15.preheader.unr-lcssa
  %.lcssa22 = phi i64 [ %.lcssa22.ph, %.lr.ph15.preheader.unr-lcssa ], [ %31, %.lr.ph.epil ]
  br label %.lr.ph15

.lr.ph15:                                         ; preds = %.lr.ph15.preheader, %.lr.ph15
  %.114 = phi i64 [ %36, %.lr.ph15 ], [ 0, %.lr.ph15.preheader ]
  %.sroa.0.113 = phi i64 [ %35, %.lr.ph15 ], [ %.lcssa22, %.lr.ph15.preheader ]
  %32 = lshr i64 %.sroa.0.113, 3
  %33 = and i64 %32, 6
  %34 = or disjoint i64 %33, 1
  %35 = shl i64 %.sroa.0.113, %34
  %36 = add nuw i64 %.114, 2
  %37 = icmp ult i64 %36, %7
  br i1 %37, label %.lr.ph15, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph15, %2
  %.sroa.0.1.lcssa = phi i64 [ %5, %2 ], [ %35, %.lr.ph15 ]
  %38 = shl i64 %.sroa.0.1.lcssa, 5
  %39 = xor i64 %38, 23558699744
  store i64 %39, 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: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass