; 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 = add i64 %9, -10089659
  %11 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  store i64 %10, ptr %11, align 8, !tbaa !9
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %18, %2
  %13 = load i64, ptr %6, align 8, !tbaa !9
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds i64, ptr %14, i64 1
  %16 = load i64, ptr %15, align 8, !tbaa !9
  %17 = icmp ult i64 %13, %16
  br i1 %17, label %18, label %28

18:                                               ; preds = %12
  %19 = load i64, ptr %6, align 8, !tbaa !9
  %20 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 %19
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %22 = load i64, ptr %6, align 8, !tbaa !9
  %23 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 %22
  %24 = load i64, ptr %23, align 8, !tbaa !9
  %25 = add i64 %24, %21
  store i64 %25, ptr %23, align 8, !tbaa !9
  %26 = load i64, ptr %6, align 8, !tbaa !9
  %27 = add i64 %26, 2
  store i64 %27, ptr %6, align 8, !tbaa !9
  br label %12, !llvm.loop !11

28:                                               ; preds = %12
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %29

29:                                               ; preds = %35, %28
  %30 = load i64, ptr %6, align 8, !tbaa !9
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds i64, ptr %31, i64 1
  %33 = load i64, ptr %32, align 8, !tbaa !9
  %34 = icmp ult i64 %30, %33
  br i1 %34, label %35, label %38

35:                                               ; preds = %29
  %36 = load i64, ptr %6, align 8, !tbaa !9
  %37 = add i64 %36, 1
  store i64 %37, ptr %6, align 8, !tbaa !9
  br label %29, !llvm.loop !13

38:                                               ; preds = %29
  %39 = getelementptr inbounds [1 x i64], ptr %5, i64 0, i64 0
  %40 = load i64, ptr %39, align 8, !tbaa !9
  %41 = add i64 %40, 316086328
  %42 = load ptr, ptr %4, align 8, !tbaa !5
  %43 = getelementptr inbounds i64, ptr %42, i64 0
  store i64 %41, ptr %43, 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 = add i64 %3, -10089659
  %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 %.preheader, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %7 = add i64 %6, -1
  %8 = lshr i64 %7, 1
  %9 = add nuw i64 %8, 1
  %xtraiter = and i64 %9, 7
  %10 = icmp ult i64 %6, 15
  br i1 %10, label %.preheader.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %9, -8
  br label %.lr.ph

.preheader.loopexit.unr-lcssa:                    ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi i64 [ poison, %.lr.ph.preheader ], [ %13, %.lr.ph ]
  %.sroa.0.010.unr = phi i64 [ %4, %.lr.ph.preheader ], [ %13, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.preheader, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %.preheader.loopexit.unr-lcssa, %.lr.ph.epil
  %.sroa.0.010.epil = phi i64 [ %11, %.lr.ph.epil ], [ %.sroa.0.010.unr, %.preheader.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %.preheader.loopexit.unr-lcssa ]
  %11 = shl i64 %.sroa.0.010.epil, 1
  %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 %.preheader, label %.lr.ph.epil, !llvm.loop !9

.preheader:                                       ; preds = %.preheader.loopexit.unr-lcssa, %.lr.ph.epil, %2
  %.sroa.0.0.lcssa = phi i64 [ %4, %2 ], [ %.lcssa.ph, %.preheader.loopexit.unr-lcssa ], [ %11, %.lr.ph.epil ]
  %12 = add i64 %.sroa.0.0.lcssa, 316086328
  store i64 %12, ptr %1, align 8, !tbaa !5
  ret void

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.sroa.0.010 = phi i64 [ %4, %.lr.ph.preheader.new ], [ %13, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.7, %.lr.ph ]
  %13 = shl i64 %.sroa.0.010, 8
  %niter.next.7 = add i64 %niter, 8
  %niter.ncmp.7.not = icmp eq i64 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7.not, label %.preheader.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !11
}

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.unroll.disable"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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