; 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 i8], align 1
  %6 = 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 1, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %7, i64 0
  %9 = load i8, ptr %8, align 1, !tbaa !9
  %10 = zext i8 %9 to i32
  %11 = xor i32 %10, 219
  %12 = trunc i32 %11 to i8
  %13 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  store i8 %12, ptr %13, align 1, !tbaa !9
  store i8 0, ptr %6, align 1, !tbaa !9
  br label %14

14:                                               ; preds = %22, %2
  %15 = load i8, ptr %6, align 1, !tbaa !9
  %16 = zext i8 %15 to i32
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %17, i64 1
  %19 = load i8, ptr %18, align 1, !tbaa !9
  %20 = zext i8 %19 to i32
  %21 = icmp slt i32 %16, %20
  br i1 %21, label %22, label %56

22:                                               ; preds = %14
  %23 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %24 = load i8, ptr %23, align 1, !tbaa !9
  %25 = zext i8 %24 to i32
  %26 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %27 = load i8, ptr %26, align 1, !tbaa !9
  %28 = zext i8 %27 to i32
  %29 = ashr i32 %28, 1
  %30 = and i32 %29, 7
  %31 = sext i32 %30 to i64
  %32 = or i64 %31, 1
  %33 = trunc i64 %32 to i32
  %34 = shl i32 %25, %33
  %35 = trunc i32 %34 to i8
  %36 = load i8, ptr %6, align 1, !tbaa !9
  %37 = zext i8 %36 to i64
  %38 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 %37
  store i8 %35, ptr %38, align 1, !tbaa !9
  %39 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %40 = load i8, ptr %39, align 1, !tbaa !9
  %41 = zext i8 %40 to i32
  %42 = ashr i32 %41, 4
  %43 = and i32 %42, 7
  %44 = sext i32 %43 to i64
  %45 = or i64 %44, 1
  %46 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %47 = load i8, ptr %46, align 1, !tbaa !9
  %48 = zext i8 %47 to i32
  %49 = trunc i64 %45 to i32
  %50 = shl i32 %48, %49
  %51 = trunc i32 %50 to i8
  store i8 %51, ptr %46, align 1, !tbaa !9
  %52 = load i8, ptr %6, align 1, !tbaa !9
  %53 = zext i8 %52 to i64
  %54 = add i64 %53, 2
  %55 = trunc i64 %54 to i8
  store i8 %55, ptr %6, align 1, !tbaa !9
  br label %14, !llvm.loop !10

56:                                               ; preds = %14
  %57 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %58 = load i8, ptr %57, align 1, !tbaa !9
  %59 = zext i8 %58 to i32
  %60 = and i32 %59, 104
  %61 = trunc i32 %60 to i8
  %62 = load ptr, ptr %4, align 8, !tbaa !5
  %63 = getelementptr inbounds i8, ptr %62, i64 0
  store i8 %61, ptr %63, align 1, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 1, 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"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 i8, ptr %0, align 1, !tbaa !5
  %4 = xor i8 %3, -37
  %5 = getelementptr inbounds i8, ptr %0, i64 1
  %6 = load i8, ptr %5, align 1, !tbaa !5
  %.not = icmp eq i8 %6, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %7 = add i8 %6, -1
  %8 = icmp ult i8 %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 i8 %7, 1
  %10 = add nuw i8 %9, 1
  %unroll_iter = and i8 %10, -2
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.sroa.0.06 = phi i8 [ %4, %.lr.ph.preheader.new ], [ %26, %.lr.ph ]
  %niter = phi i8 [ 0, %.lr.ph.preheader.new ], [ %niter.next.1, %.lr.ph ]
  %11 = lshr i8 %.sroa.0.06, 1
  %12 = and i8 %11, 6
  %13 = or disjoint i8 %12, 1
  %14 = shl i8 %.sroa.0.06, %13
  %15 = lshr i8 %14, 4
  %16 = and i8 %15, 6
  %17 = or disjoint i8 %16, 1
  %18 = shl i8 %14, %17
  %19 = lshr exact i8 %18, 1
  %20 = and i8 %19, 6
  %21 = or disjoint i8 %20, 1
  %22 = shl i8 %18, %21
  %23 = lshr i8 %22, 4
  %24 = and i8 %23, 6
  %25 = or disjoint i8 %24, 1
  %26 = shl i8 %22, %25
  %niter.next.1 = add nuw i8 %niter, 2
  %niter.ncmp.1.not = icmp eq i8 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1.not, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !8

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi i8 [ poison, %.lr.ph.preheader ], [ %26, %.lr.ph ]
  %.sroa.0.06.unr = phi i8 [ %4, %.lr.ph.preheader ], [ %26, %.lr.ph ]
  %27 = and i8 %7, 2
  %lcmp.mod.not.not = icmp eq i8 %27, 0
  br i1 %lcmp.mod.not.not, label %.lr.ph.epil, label %._crit_edge

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa
  %28 = lshr i8 %.sroa.0.06.unr, 1
  %29 = and i8 %28, 6
  %30 = or disjoint i8 %29, 1
  %31 = shl i8 %.sroa.0.06.unr, %30
  %32 = lshr i8 %31, 4
  %33 = and i8 %32, 6
  %34 = or disjoint i8 %33, 1
  %35 = shl i8 %31, %34
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph.epil, %._crit_edge.loopexit.unr-lcssa, %2
  %.sroa.0.0.lcssa = phi i8 [ %4, %2 ], [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %35, %.lr.ph.epil ]
  %36 = and i8 %.sroa.0.0.lcssa, 104
  store i8 %36, ptr %1, align 1, !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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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