; 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 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 i32
  %12 = xor i32 %11, 7387
  %13 = trunc i32 %12 to i16
  %14 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  store i16 %13, ptr %14, align 2, !tbaa !9
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %15

15:                                               ; preds = %53, %2
  %16 = load i16, ptr %6, align 2, !tbaa !9
  %17 = zext i16 %16 to i32
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds i16, ptr %18, i64 1
  %20 = load i16, ptr %19, align 2, !tbaa !9
  %21 = zext i16 %20 to i32
  %22 = icmp slt i32 %17, %21
  br i1 %22, label %23, label %58

23:                                               ; preds = %15
  %24 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %25 = load i16, ptr %24, align 2, !tbaa !9
  %26 = zext i16 %25 to i32
  %27 = load i16, ptr %6, align 2, !tbaa !9
  %28 = zext i16 %27 to i32
  %29 = icmp ne i32 %26, %28
  br i1 %29, label %30, label %42

30:                                               ; preds = %23
  %31 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %32 = getelementptr inbounds i8, ptr %31, i64 1
  %33 = load i8, ptr %32, align 1, !tbaa !11
  store i8 %33, ptr %7, align 1, !tbaa !11
  %34 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %35 = getelementptr inbounds i8, ptr %34, i64 0
  %36 = load i8, ptr %35, align 1, !tbaa !11
  %37 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %38 = getelementptr inbounds i8, ptr %37, i64 1
  store i8 %36, ptr %38, align 1, !tbaa !11
  %39 = load i8, ptr %7, align 1, !tbaa !11
  %40 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %41 = getelementptr inbounds i8, ptr %40, i64 0
  store i8 %39, ptr %41, align 1, !tbaa !11
  br label %53

42:                                               ; preds = %23
  %43 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %44 = load i16, ptr %43, align 2, !tbaa !9
  %45 = zext i16 %44 to i32
  %46 = load i16, ptr %6, align 2, !tbaa !9
  %47 = zext i16 %46 to i64
  %48 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %47
  %49 = load i16, ptr %48, align 2, !tbaa !9
  %50 = zext i16 %49 to i32
  %51 = xor i32 %50, %45
  %52 = trunc i32 %51 to i16
  store i16 %52, ptr %48, align 2, !tbaa !9
  br label %53

53:                                               ; preds = %42, %30
  %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 %15, !llvm.loop !12

58:                                               ; preds = %15
  %59 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %60 = load i16, ptr %59, align 2, !tbaa !9
  %61 = zext i16 %60 to i64
  %62 = or i64 %61, 304338863
  %63 = trunc i64 %62 to i16
  %64 = load ptr, ptr %4, align 8, !tbaa !5
  %65 = getelementptr inbounds i16, ptr %64, i64 0
  store i16 %63, ptr %65, 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.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 = !{!"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 = load i16, ptr %0, align 2, !tbaa !5
  %4 = xor i16 %3, 7387
  %.sroa.0.0.extract.trunc = trunc i16 %4 to i8
  %.sroa.9.0.extract.shift = lshr i16 %4, 8
  %.sroa.9.0.extract.trunc = trunc nuw i16 %.sroa.9.0.extract.shift to i8
  %5 = getelementptr inbounds i8, ptr %0, i64 2
  %6 = load i16, ptr %5, align 2, !tbaa !5
  %.not36 = icmp eq i16 %6, 0
  br i1 %.not36, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %7 = add i16 %6, -1
  %8 = icmp ult i16 %6, 3
  br i1 %8, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %9 = lshr i16 %7, 1
  %10 = add nuw i16 %9, 1
  %unroll_iter = and i16 %10, -2
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.034 = phi i16 [ 0, %.lr.ph.preheader.new ], [ %12, %.lr.ph ]
  %.sroa.0.033 = phi i8 [ %.sroa.0.0.extract.trunc, %.lr.ph.preheader.new ], [ %spec.select31.1, %.lr.ph ]
  %.sroa.9.032 = phi i8 [ %.sroa.9.0.extract.trunc, %.lr.ph.preheader.new ], [ %spec.select.1, %.lr.ph ]
  %niter = phi i16 [ 0, %.lr.ph.preheader.new ], [ %niter.next.1, %.lr.ph ]
  %.sroa.9.0.insert.ext = zext i8 %.sroa.9.032 to i16
  %.sroa.9.0.insert.shift = shl nuw i16 %.sroa.9.0.insert.ext, 8
  %.sroa.0.0.insert.ext = zext i8 %.sroa.0.033 to i16
  %.sroa.0.0.insert.insert = or disjoint i16 %.sroa.9.0.insert.shift, %.sroa.0.0.insert.ext
  %.not = icmp eq i16 %.sroa.0.0.insert.insert, %.034
  %spec.select = select i1 %.not, i8 0, i8 %.sroa.0.033
  %spec.select31 = select i1 %.not, i8 0, i8 %.sroa.9.032
  %11 = or disjoint i16 %.034, 2
  %.sroa.9.0.insert.ext.1 = zext i8 %spec.select to i16
  %.sroa.9.0.insert.shift.1 = shl nuw i16 %.sroa.9.0.insert.ext.1, 8
  %.sroa.0.0.insert.ext.1 = zext i8 %spec.select31 to i16
  %.sroa.0.0.insert.insert.1 = or disjoint i16 %.sroa.9.0.insert.shift.1, %.sroa.0.0.insert.ext.1
  %.not.1 = icmp eq i16 %.sroa.0.0.insert.insert.1, %11
  %spec.select.1 = select i1 %.not.1, i8 0, i8 %spec.select31
  %spec.select31.1 = select i1 %.not.1, i8 0, i8 %spec.select
  %12 = add nuw i16 %.034, 4
  %niter.next.1 = add nuw i16 %niter, 2
  %niter.ncmp.1.not = icmp eq i16 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1.not, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !9

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %spec.select.lcssa.ph = phi i8 [ poison, %.lr.ph.preheader ], [ %spec.select.1, %.lr.ph ]
  %spec.select31.lcssa.ph = phi i8 [ poison, %.lr.ph.preheader ], [ %spec.select31.1, %.lr.ph ]
  %.034.unr = phi i16 [ 0, %.lr.ph.preheader ], [ %12, %.lr.ph ]
  %.sroa.0.033.unr = phi i8 [ %.sroa.0.0.extract.trunc, %.lr.ph.preheader ], [ %spec.select31.1, %.lr.ph ]
  %.sroa.9.032.unr = phi i8 [ %.sroa.9.0.extract.trunc, %.lr.ph.preheader ], [ %spec.select.1, %.lr.ph ]
  %13 = and i16 %7, 2
  %lcmp.mod.not.not = icmp eq i16 %13, 0
  br i1 %lcmp.mod.not.not, label %.lr.ph.epil, label %._crit_edge

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa
  %.sroa.9.0.insert.ext.epil = zext i8 %.sroa.9.032.unr to i16
  %.sroa.9.0.insert.shift.epil = shl nuw i16 %.sroa.9.0.insert.ext.epil, 8
  %.sroa.0.0.insert.ext.epil = zext i8 %.sroa.0.033.unr to i16
  %.sroa.0.0.insert.insert.epil = or disjoint i16 %.sroa.9.0.insert.shift.epil, %.sroa.0.0.insert.ext.epil
  %.not.epil = icmp eq i16 %.sroa.0.0.insert.insert.epil, %.034.unr
  %spec.select.epil = select i1 %.not.epil, i8 0, i8 %.sroa.0.033.unr
  %spec.select31.epil = select i1 %.not.epil, i8 0, i8 %.sroa.9.032.unr
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph.epil, %._crit_edge.loopexit.unr-lcssa, %2
  %.sroa.9.0.lcssa = phi i8 [ %.sroa.9.0.extract.trunc, %2 ], [ %spec.select.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %spec.select.epil, %.lr.ph.epil ]
  %.sroa.0.0.lcssa = phi i8 [ %.sroa.0.0.extract.trunc, %2 ], [ %spec.select31.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %spec.select31.epil, %.lr.ph.epil ]
  %.sroa.9.0.insert.ext20 = zext i8 %.sroa.9.0.lcssa to i16
  %.sroa.9.0.insert.shift21 = shl nuw i16 %.sroa.9.0.insert.ext20, 8
  %.sroa.0.0.insert.ext11 = zext i8 %.sroa.0.0.lcssa to i16
  %.sroa.0.0.insert.insert13 = or disjoint i16 %.sroa.9.0.insert.shift21, %.sroa.0.0.insert.ext11
  %14 = or i16 %.sroa.0.0.insert.insert13, -10321
  store i16 %14, ptr %1, align 2, !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 = !{!"short", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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