; 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 i16, align 2
  %8 = 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 2, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #2
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds i16, ptr %9, i64 0
  %11 = load i16, ptr %10, align 2, !tbaa !9
  %12 = zext i16 %11 to i64
  %13 = or i64 %12, 51238316
  %14 = lshr i64 %13, 3
  %15 = trunc i64 %14 to i16
  %16 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  store i16 %15, ptr %16, align 2, !tbaa !9
  store i16 0, ptr %7, align 2, !tbaa !9
  br label %17

17:                                               ; preds = %58, %2
  %18 = load i16, ptr %7, align 2, !tbaa !9
  %19 = zext i16 %18 to i32
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds i16, ptr %20, i64 1
  %22 = load i16, ptr %21, align 2, !tbaa !9
  %23 = zext i16 %22 to i32
  %24 = icmp slt i32 %19, %23
  br i1 %24, label %25, label %63

25:                                               ; preds = %17
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %26

26:                                               ; preds = %34, %25
  %27 = load i16, ptr %6, align 2, !tbaa !9
  %28 = zext i16 %27 to i32
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds i16, ptr %29, i64 1
  %31 = load i16, ptr %30, align 2, !tbaa !9
  %32 = zext i16 %31 to i32
  %33 = icmp slt i32 %28, %32
  br i1 %33, label %34, label %58

34:                                               ; preds = %26
  %35 = load i16, ptr %7, align 2, !tbaa !9
  %36 = zext i16 %35 to i64
  %37 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %36
  %38 = getelementptr inbounds i8, ptr %37, i64 1
  %39 = load i8, ptr %38, align 1, !tbaa !11
  store i8 %39, ptr %8, align 1, !tbaa !11
  %40 = load i16, ptr %7, align 2, !tbaa !9
  %41 = zext i16 %40 to i64
  %42 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %41
  %43 = getelementptr inbounds i8, ptr %42, i64 0
  %44 = load i8, ptr %43, align 1, !tbaa !11
  %45 = load i16, ptr %7, align 2, !tbaa !9
  %46 = zext i16 %45 to i64
  %47 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %46
  %48 = getelementptr inbounds i8, ptr %47, i64 1
  store i8 %44, ptr %48, align 1, !tbaa !11
  %49 = load i8, ptr %8, align 1, !tbaa !11
  %50 = load i16, ptr %7, align 2, !tbaa !9
  %51 = zext i16 %50 to i64
  %52 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %51
  %53 = getelementptr inbounds i8, ptr %52, i64 0
  store i8 %49, ptr %53, align 1, !tbaa !11
  %54 = load i16, ptr %6, align 2, !tbaa !9
  %55 = zext i16 %54 to i64
  %56 = add i64 %55, 2
  %57 = trunc i64 %56 to i16
  store i16 %57, ptr %6, align 2, !tbaa !9
  br label %26, !llvm.loop !12

58:                                               ; preds = %26
  %59 = load i16, ptr %7, align 2, !tbaa !9
  %60 = zext i16 %59 to i64
  %61 = add i64 %60, 2
  %62 = trunc i64 %61 to i16
  store i16 %62, ptr %7, align 2, !tbaa !9
  br label %17, !llvm.loop !14

63:                                               ; preds = %17
  %64 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %65 = load i16, ptr %64, align 2, !tbaa !9
  %66 = zext i16 %65 to i64
  %67 = xor i64 %66, 736209367
  %68 = shl i64 %67, 5
  %69 = trunc i64 %68 to i16
  %70 = load ptr, ptr %4, align 8, !tbaa !5
  %71 = getelementptr inbounds i16, ptr %70, i64 0
  store i16 %69, ptr %71, align 2, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 2, 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"}
!14 = distinct !{!14, !13}


; 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
  %9 = trunc i16 %6 to i8
  %.not = icmp eq i16 %8, 0
  br i1 %.not, label %._crit_edge, label %.preheader.preheader

.preheader.preheader:                             ; preds = %2
  %10 = zext i16 %8 to i64
  %11 = add i16 %8, 1
  %12 = lshr i16 %11, 1
  %13 = add nuw i16 %12, 1
  %xtraiter = and i16 %13, 7
  %14 = icmp ult i16 %11, 14
  %unroll_iter = and i16 %13, -8
  %lcmp.mod.not = icmp eq i16 %xtraiter, 0
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.epilog-lcssa
  %indvars.iv = phi i64 [ 0, %.preheader.preheader ], [ %indvars.iv.next, %.epilog-lcssa ]
  %.lcssa141617 = phi i8 [ %9, %.preheader.preheader ], [ %.lcssa22, %.epilog-lcssa ]
  %gep = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv
  %.promoted = load i8, ptr %gep, align 1, !tbaa !9
  br i1 %14, label %.unr-lcssa, label %.preheader.new

.preheader.new:                                   ; preds = %.preheader, %.preheader.new
  %niter = phi i16 [ %niter.next.7, %.preheader.new ], [ 0, %.preheader ]
  %niter.next.7 = add i16 %niter, 8
  %niter.ncmp.7.not = icmp eq i16 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7.not, label %.unr-lcssa, label %.preheader.new, !llvm.loop !10

.unr-lcssa:                                       ; preds = %.preheader.new, %.preheader
  br i1 %lcmp.mod.not, label %.epilog-lcssa, label %.epil.preheader

.epil.preheader:                                  ; preds = %.unr-lcssa, %.epil.preheader
  %15 = phi i8 [ %16, %.epil.preheader ], [ %.lcssa141617, %.unr-lcssa ]
  %16 = phi i8 [ %15, %.epil.preheader ], [ %.promoted, %.unr-lcssa ]
  %epil.iter = phi i16 [ %epil.iter.next, %.epil.preheader ], [ 0, %.unr-lcssa ]
  %epil.iter.next = add i16 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i16 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.epilog-lcssa, label %.epil.preheader, !llvm.loop !12

.epilog-lcssa:                                    ; preds = %.epil.preheader, %.unr-lcssa
  %.lcssa22 = phi i8 [ %.promoted, %.unr-lcssa ], [ %15, %.epil.preheader ]
  %.lcssa = phi i8 [ %.lcssa141617, %.unr-lcssa ], [ %16, %.epil.preheader ]
  store i8 %.lcssa, ptr %gep, align 1, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 2
  %17 = icmp ult i64 %indvars.iv.next, %10
  br i1 %17, label %.preheader, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %.epilog-lcssa, %2
  %.lcssa1416.lcssa = phi i8 [ %9, %2 ], [ %.lcssa22, %.epilog-lcssa ]
  store i8 %.lcssa1416.lcssa, ptr %3, align 2, !tbaa !9
  %18 = load i16, ptr %3, align 2, !tbaa !5
  %19 = shl i16 %18, 5
  %20 = xor i16 %19, 15072
  store i16 %20, 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"}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.unroll.disable"}
!14 = distinct !{!14, !11}


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