; 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 i16], align 2
  %6 = alloca i16, align 2
  %7 = alloca i8, align 1
  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 2, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 2, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds i16, ptr %8, i64 0
  %10 = load i16, ptr %9, align 2, !tbaa !9
  %11 = zext i16 %10 to i64
  %12 = or i64 %11, 51238316
  %13 = lshr i64 %12, 3
  %14 = trunc i64 %13 to i16
  %15 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  store i16 %14, ptr %15, align 2, !tbaa !9
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %16

16:                                               ; preds = %51, %2
  %17 = load i16, ptr %6, align 2, !tbaa !9
  %18 = zext i16 %17 to i32
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds i16, ptr %19, i64 1
  %21 = load i16, ptr %20, align 2, !tbaa !9
  %22 = zext i16 %21 to i32
  %23 = icmp slt i32 %18, %22
  br i1 %23, label %24, label %56

24:                                               ; preds = %16
  %25 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %26 = load i16, ptr %25, align 2, !tbaa !9
  %27 = zext i16 %26 to i32
  %28 = load i16, ptr %6, align 2, !tbaa !9
  %29 = zext i16 %28 to i32
  %30 = icmp sgt i32 %27, %29
  br i1 %30, label %31, label %51

31:                                               ; preds = %24
  %32 = load i16, ptr %6, align 2, !tbaa !9
  %33 = zext i16 %32 to i64
  %34 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %33
  %35 = getelementptr inbounds i8, ptr %34, i64 1
  %36 = load i8, ptr %35, align 1, !tbaa !11
  store i8 %36, ptr %7, align 1, !tbaa !11
  %37 = load i16, ptr %6, align 2, !tbaa !9
  %38 = zext i16 %37 to i64
  %39 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %38
  %40 = getelementptr inbounds i8, ptr %39, i64 0
  %41 = load i8, ptr %40, align 1, !tbaa !11
  %42 = load i16, ptr %6, align 2, !tbaa !9
  %43 = zext i16 %42 to i64
  %44 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %43
  %45 = getelementptr inbounds i8, ptr %44, i64 1
  store i8 %41, ptr %45, align 1, !tbaa !11
  %46 = load i8, ptr %7, align 1, !tbaa !11
  %47 = load i16, ptr %6, align 2, !tbaa !9
  %48 = zext i16 %47 to i64
  %49 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %48
  %50 = getelementptr inbounds i8, ptr %49, i64 0
  store i8 %46, ptr %50, align 1, !tbaa !11
  br label %51

51:                                               ; preds = %31, %24
  %52 = load i16, ptr %6, align 2, !tbaa !9
  %53 = zext i16 %52 to i64
  %54 = add i64 %53, 2
  %55 = trunc i64 %54 to i16
  store i16 %55, ptr %6, align 2, !tbaa !9
  br label %16, !llvm.loop !12

56:                                               ; preds = %16
  %57 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %58 = load i16, ptr %57, align 2, !tbaa !9
  %59 = zext i16 %58 to i64
  %60 = xor i64 %59, 144997984
  %61 = or i64 %60, 15072
  %62 = trunc i64 %61 to i16
  %63 = load ptr, ptr %4, align 8, !tbaa !5
  %64 = getelementptr inbounds i16, ptr %63, i64 0
  store i16 %62, ptr %64, align 2, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 2, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 2, 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 = !{!"short", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; 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 = alloca [1 x i16], align 2
  call void @llvm.lifetime.start.p0(i64 2, ptr nonnull %3) #2
  %4 = load i16, ptr %0, align 2, !tbaa !5
  %5 = lshr i16 %4, 3
  %6 = or i16 %5, -17739
  store i16 %6, ptr %3, align 2, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 2
  %8 = load i16, ptr %7, align 2, !tbaa !5
  %invariant.gep = getelementptr inbounds i8, ptr %3, i64 1
  %.not = icmp eq i16 %8, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %9 = zext i16 %8 to i64
  %10 = add nsw i64 %9, -1
  %11 = icmp ult i16 %8, 3
  br i1 %11, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %12 = lshr i64 %10, 1
  %13 = add nuw i64 %12, 1
  %unroll_iter = and i64 %13, -2
  br label %.lr.ph

.lr.ph:                                           ; preds = %26, %.lr.ph.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader.new ], [ %indvars.iv.next.1, %26 ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.1, %26 ]
  %14 = load i16, ptr %3, align 2
  %15 = zext i16 %14 to i64
  %16 = icmp ult i64 %indvars.iv, %15
  br i1 %16, label %17, label %.lr.ph.1

17:                                               ; preds = %.lr.ph
  %18 = trunc i16 %14 to i8
  %gep = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv
  %19 = load i8, ptr %gep, align 1, !tbaa !9
  store i8 %18, ptr %gep, align 1, !tbaa !9
  store i8 %19, ptr %3, align 2, !tbaa !9
  br label %.lr.ph.1

.lr.ph.1:                                         ; preds = %17, %.lr.ph
  %indvars.iv.next = or disjoint i64 %indvars.iv, 2
  %20 = load i16, ptr %3, align 2
  %21 = zext i16 %20 to i64
  %22 = icmp ult i64 %indvars.iv.next, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %.lr.ph.1
  %24 = trunc i16 %20 to i8
  %gep.1 = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.next
  %25 = load i8, ptr %gep.1, align 1, !tbaa !9
  store i8 %24, ptr %gep.1, align 1, !tbaa !9
  store i8 %25, ptr %3, align 2, !tbaa !9
  br label %26

26:                                               ; preds = %23, %.lr.ph.1
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 4
  %niter.next.1 = add nuw nsw i64 %niter, 2
  %niter.ncmp.1.not = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1.not, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !10

._crit_edge.loopexit.unr-lcssa:                   ; preds = %26, %.lr.ph.preheader
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next.1, %26 ]
  %27 = and i64 %10, 2
  %lcmp.mod.not.not = icmp eq i64 %27, 0
  br i1 %lcmp.mod.not.not, label %.lr.ph.epil, label %._crit_edge.loopexit

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa
  %28 = load i16, ptr %3, align 2
  %29 = zext i16 %28 to i64
  %30 = icmp ult i64 %indvars.iv.unr, %29
  br i1 %30, label %31, label %._crit_edge.loopexit

31:                                               ; preds = %.lr.ph.epil
  %32 = trunc i16 %28 to i8
  %gep.epil = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.unr
  %33 = load i8, ptr %gep.epil, align 1, !tbaa !9
  store i8 %32, ptr %gep.epil, align 1, !tbaa !9
  store i8 %33, ptr %3, align 2, !tbaa !9
  br label %._crit_edge.loopexit

._crit_edge.loopexit:                             ; preds = %.lr.ph.epil, %31, %._crit_edge.loopexit.unr-lcssa
  %.pre = load i16, ptr %3, align 2, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %2
  %34 = phi i16 [ %.pre, %._crit_edge.loopexit ], [ %6, %2 ]
  %35 = and i16 %34, -15073
  %36 = xor i16 %35, 32480
  store i16 %36, ptr %1, align 2, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 2, ptr nonnull %3) #2
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { mustprogress 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 = !{!"short", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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