; 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
  %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 1, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 1, 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 i8, ptr %8, i64 0
  %10 = load i8, ptr %9, align 1, !tbaa !9
  %11 = zext i8 %10 to i64
  %12 = add i64 %11, 914778474
  %13 = xor i64 %12, 11
  %14 = trunc i64 %13 to i8
  %15 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  store i8 %14, ptr %15, align 1, !tbaa !9
  store i8 0, ptr %7, align 1, !tbaa !9
  br label %16

16:                                               ; preds = %71, %2
  %17 = load i8, ptr %7, align 1, !tbaa !9
  %18 = zext i8 %17 to i32
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %19, i64 1
  %21 = load i8, ptr %20, align 1, !tbaa !9
  %22 = zext i8 %21 to i32
  %23 = icmp slt i32 %18, %22
  br i1 %23, label %24, label %74

24:                                               ; preds = %16
  store i8 0, ptr %6, align 1, !tbaa !9
  br label %25

25:                                               ; preds = %66, %24
  %26 = load i8, ptr %6, align 1, !tbaa !9
  %27 = zext i8 %26 to i32
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %28, i64 1
  %30 = load i8, ptr %29, align 1, !tbaa !9
  %31 = zext i8 %30 to i32
  %32 = icmp slt i32 %27, %31
  br i1 %32, label %33, label %71

33:                                               ; preds = %25
  %34 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %35 = load i8, ptr %34, align 1, !tbaa !9
  %36 = zext i8 %35 to i32
  %37 = load i8, ptr %6, align 1, !tbaa !9
  %38 = zext i8 %37 to i32
  %39 = load i8, ptr %7, align 1, !tbaa !9
  %40 = zext i8 %39 to i32
  %41 = add nsw i32 %38, %40
  %42 = icmp eq i32 %36, %41
  br i1 %42, label %43, label %55

43:                                               ; preds = %33
  %44 = load i8, ptr %6, align 1, !tbaa !9
  %45 = zext i8 %44 to i64
  %46 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 %45
  %47 = load i8, ptr %46, align 1, !tbaa !9
  %48 = zext i8 %47 to i32
  %49 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %50 = load i8, ptr %49, align 1, !tbaa !9
  %51 = zext i8 %50 to i32
  %52 = add nsw i32 %48, %51
  %53 = trunc i32 %52 to i8
  %54 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  store i8 %53, ptr %54, align 1, !tbaa !9
  br label %66

55:                                               ; preds = %33
  %56 = load i8, ptr %7, align 1, !tbaa !9
  %57 = zext i8 %56 to i64
  %58 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 %57
  %59 = load i8, ptr %58, align 1, !tbaa !9
  %60 = zext i8 %59 to i32
  %61 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %62 = load i8, ptr %61, align 1, !tbaa !9
  %63 = zext i8 %62 to i32
  %64 = add nsw i32 %63, %60
  %65 = trunc i32 %64 to i8
  store i8 %65, ptr %61, align 1, !tbaa !9
  br label %66

66:                                               ; preds = %55, %43
  %67 = load i8, ptr %6, align 1, !tbaa !9
  %68 = zext i8 %67 to i64
  %69 = add i64 %68, 2
  %70 = trunc i64 %69 to i8
  store i8 %70, ptr %6, align 1, !tbaa !9
  br label %25, !llvm.loop !10

71:                                               ; preds = %25
  %72 = load i8, ptr %7, align 1, !tbaa !9
  %73 = add i8 %72, 1
  store i8 %73, ptr %7, align 1, !tbaa !9
  br label %16, !llvm.loop !12

74:                                               ; preds = %16
  %75 = getelementptr inbounds [1 x i8], ptr %5, i64 0, i64 0
  %76 = load i8, ptr %75, align 1, !tbaa !9
  %77 = zext i8 %76 to i32
  %78 = add nsw i32 %77, 237
  %79 = trunc i32 %78 to i8
  %80 = load ptr, ptr %4, align 8, !tbaa !5
  %81 = getelementptr inbounds i8, ptr %80, i64 0
  store i8 %79, ptr %81, align 1, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #2
  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"}
!12 = distinct !{!12, !11}


; 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 = add i8 %3, 106
  %5 = xor i8 %4, 11
  %6 = getelementptr inbounds i8, ptr %0, i64 1
  %7 = load i8, ptr %6, align 1, !tbaa !5
  %.not = icmp eq i8 %7, 0
  br i1 %.not, label %._crit_edge, label %.preheader.preheader

.preheader.preheader:                             ; preds = %2
  %8 = add i8 %7, -1
  %9 = lshr i8 %8, 1
  %10 = add nuw i8 %9, 1
  %xtraiter = and i8 %10, 7
  %11 = icmp ult i8 %7, 15
  %unroll_iter = and i8 %10, -8
  %lcmp.mod.not = icmp eq i8 %xtraiter, 0
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.epilog-lcssa
  %.021 = phi i8 [ %13, %.epilog-lcssa ], [ 0, %.preheader.preheader ]
  %.sroa.0.020 = phi i8 [ %.lcssa, %.epilog-lcssa ], [ %5, %.preheader.preheader ]
  br i1 %11, label %.unr-lcssa, label %.preheader.new

.preheader.new:                                   ; preds = %.preheader, %.preheader.new
  %niter = phi i8 [ %niter.next.7, %.preheader.new ], [ 0, %.preheader ]
  %niter.next.7 = add i8 %niter, 8
  %niter.ncmp.7.not = icmp eq i8 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7.not, label %.unr-lcssa, label %.preheader.new, !llvm.loop !8

.unr-lcssa:                                       ; preds = %.preheader.new, %.preheader
  %.sroa.0.118.unr = phi i8 [ %.sroa.0.020, %.preheader ], [ 0, %.preheader.new ]
  br i1 %lcmp.mod.not, label %.epilog-lcssa, label %.epil.preheader

.epil.preheader:                                  ; preds = %.unr-lcssa, %.epil.preheader
  %.sroa.0.118.epil = phi i8 [ %12, %.epil.preheader ], [ %.sroa.0.118.unr, %.unr-lcssa ]
  %epil.iter = phi i8 [ %epil.iter.next, %.epil.preheader ], [ 0, %.unr-lcssa ]
  %12 = shl i8 %.sroa.0.118.epil, 1
  %epil.iter.next = add i8 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i8 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.epilog-lcssa, label %.epil.preheader, !llvm.loop !10

.epilog-lcssa:                                    ; preds = %.epil.preheader, %.unr-lcssa
  %.lcssa = phi i8 [ 0, %.unr-lcssa ], [ %12, %.epil.preheader ]
  %13 = add nuw i8 %.021, 1
  %exitcond.not = icmp eq i8 %13, %7
  br i1 %exitcond.not, label %._crit_edge, label %.preheader, !llvm.loop !12

._crit_edge:                                      ; preds = %.epilog-lcssa, %2
  %.sroa.0.0.lcssa = phi i8 [ %5, %2 ], [ %.lcssa, %.epilog-lcssa ]
  %14 = add i8 %.sroa.0.0.lcssa, -19
  store i8 %14, 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"}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.unroll.disable"}
!12 = distinct !{!12, !9}


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