; 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
  %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 1, 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 i32
  %13 = xor i32 %12, 7387
  %14 = trunc i32 %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 = %24, %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 %70

24:                                               ; preds = %16
  %25 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %26 = getelementptr inbounds i8, ptr %25, i64 0
  %27 = load i8, ptr %26, align 1, !tbaa !11
  store i8 %27, ptr %7, align 1, !tbaa !11
  %28 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %29 = getelementptr inbounds i8, ptr %28, i64 1
  %30 = load i8, ptr %29, align 1, !tbaa !11
  %31 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %32 = getelementptr inbounds i8, ptr %31, i64 0
  store i8 %30, ptr %32, align 1, !tbaa !11
  %33 = load i8, 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 1
  store i8 %33, ptr %35, align 1, !tbaa !11
  %36 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %37 = getelementptr inbounds i8, ptr %36, i64 1
  %38 = load i8, ptr %37, align 1, !tbaa !11
  store i8 %38, ptr %7, align 1, !tbaa !11
  %39 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %40 = getelementptr inbounds i8, ptr %39, i64 0
  %41 = load i8, ptr %40, align 1, !tbaa !11
  %42 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %43 = getelementptr inbounds i8, ptr %42, i64 1
  store i8 %41, ptr %43, align 1, !tbaa !11
  %44 = load i8, ptr %7, align 1, !tbaa !11
  %45 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %46 = getelementptr inbounds i8, ptr %45, i64 0
  store i8 %44, ptr %46, 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 1
  %51 = load i8, ptr %50, align 1, !tbaa !11
  store i8 %51, ptr %8, align 1, !tbaa !11
  %52 = load i16, ptr %6, align 2, !tbaa !9
  %53 = zext i16 %52 to i64
  %54 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %53
  %55 = getelementptr inbounds i8, ptr %54, i64 0
  %56 = load i8, ptr %55, align 1, !tbaa !11
  %57 = load i16, ptr %6, align 2, !tbaa !9
  %58 = zext i16 %57 to i64
  %59 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %58
  %60 = getelementptr inbounds i8, ptr %59, i64 1
  store i8 %56, ptr %60, align 1, !tbaa !11
  %61 = load i8, ptr %8, align 1, !tbaa !11
  %62 = load i16, ptr %6, align 2, !tbaa !9
  %63 = zext i16 %62 to i64
  %64 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %63
  %65 = getelementptr inbounds i8, ptr %64, i64 0
  store i8 %61, ptr %65, align 1, !tbaa !11
  %66 = load i16, ptr %6, align 2, !tbaa !9
  %67 = zext i16 %66 to i64
  %68 = add i64 %67, 2
  %69 = trunc i64 %68 to i16
  store i16 %69, ptr %6, align 2, !tbaa !9
  br label %16, !llvm.loop !12

70:                                               ; preds = %16
  %71 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %72 = load i16, ptr %71, align 2, !tbaa !9
  %73 = zext i16 %72 to i64
  %74 = and i64 %73, 608351785
  %75 = trunc i64 %74 to i16
  %76 = load ptr, ptr %4, align 8, !tbaa !5
  %77 = getelementptr inbounds i16, ptr %76, i64 0
  store i16 %75, ptr %77, align 2, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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 #1 {
  %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 = xor i16 %4, 7387
  store i16 %5, ptr %3, align 2, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 2
  %7 = load i16, ptr %6, align 2, !tbaa !5
  %invariant.gep = getelementptr inbounds i8, ptr %3, i64 1
  %8 = trunc i16 %5 to i8
  %.not = icmp eq i16 %7, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %9 = zext i16 %7 to i64
  %10 = add nsw i64 %9, -1
  %11 = lshr i64 %10, 1
  %12 = add nuw i64 %11, 1
  %xtraiter = and i64 %12, 3
  %13 = icmp ult i16 %7, 7
  br i1 %13, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %12, -4
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader.new ], [ %indvars.iv.next.3, %.lr.ph ]
  %14 = phi i8 [ %8, %.lr.ph.preheader.new ], [ %18, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %gep = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv
  %15 = load i8, ptr %gep, align 1, !tbaa !9
  store i8 %14, ptr %gep, align 1, !tbaa !9
  %indvars.iv.next = or disjoint i64 %indvars.iv, 2
  %gep.1 = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.next
  %16 = load i8, ptr %gep.1, align 1, !tbaa !9
  store i8 %15, ptr %gep.1, align 1, !tbaa !9
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 4
  %gep.2 = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.next.1
  %17 = load i8, ptr %gep.2, align 1, !tbaa !9
  store i8 %16, ptr %gep.2, align 1, !tbaa !9
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 6
  %gep.3 = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.next.2
  %18 = load i8, ptr %gep.3, align 1, !tbaa !9
  store i8 %17, ptr %gep.3, align 1, !tbaa !9
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 8
  %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 %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !10

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa15.ph = phi i8 [ poison, %.lr.ph.preheader ], [ %18, %.lr.ph ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next.3, %.lr.ph ]
  %.unr = phi i8 [ %8, %.lr.ph.preheader ], [ %18, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %.lr.ph.epil ], [ %indvars.iv.unr, %._crit_edge.loopexit.unr-lcssa ]
  %19 = phi i8 [ %20, %.lr.ph.epil ], [ %.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %gep.epil = getelementptr inbounds [1 x i16], ptr %invariant.gep, i64 0, i64 %indvars.iv.epil
  %20 = load i8, ptr %gep.epil, align 1, !tbaa !9
  store i8 %19, ptr %gep.epil, align 1, !tbaa !9
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.epil, 2
  %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 %._crit_edge, label %.lr.ph.epil, !llvm.loop !12

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil, %2
  %.lcssa = phi i8 [ %8, %2 ], [ %.lcssa15.ph, %._crit_edge.loopexit.unr-lcssa ], [ %20, %.lr.ph.epil ]
  store i8 %.lcssa, ptr %3, align 2, !tbaa !9
  %21 = load i16, ptr %3, align 2, !tbaa !5
  %22 = and i16 %21, -18903
  store i16 %22, 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.end.p0(i64 immarg, ptr nocapture) #0

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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"}


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