; 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
  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
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds i16, ptr %7, i64 0
  %9 = load i16, ptr %8, align 2, !tbaa !9
  %10 = zext i16 %9 to i64
  %11 = add i64 %10, 914778474
  %12 = xor i64 %11, 11
  %13 = trunc i64 %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 = %39, %2
  %16 = load i16, ptr %6, align 2, !tbaa !9
  %17 = zext i16 %16 to i64
  %18 = icmp ult i64 %17, 1
  br i1 %18, label %19, label %42

19:                                               ; preds = %15
  %20 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %21 = load i16, ptr %20, align 2, !tbaa !9
  %22 = zext i16 %21 to i32
  %23 = load i16, ptr %6, align 2, !tbaa !9
  %24 = zext i16 %23 to i32
  %25 = icmp sgt i32 %22, %24
  br i1 %25, label %26, label %39

26:                                               ; preds = %19
  %27 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %28 = load i16, ptr %27, align 2, !tbaa !9
  %29 = zext i16 %28 to i32
  %30 = and i32 %29, 63
  %31 = shl i32 %30, 4
  %32 = load i16, ptr %6, align 2, !tbaa !9
  %33 = zext i16 %32 to i64
  %34 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %33
  %35 = load i16, ptr %34, align 2, !tbaa !9
  %36 = zext i16 %35 to i32
  %37 = or i32 %36, %31
  %38 = trunc i32 %37 to i16
  store i16 %38, ptr %34, align 2, !tbaa !9
  br label %39

39:                                               ; preds = %26, %19
  %40 = load i16, ptr %6, align 2, !tbaa !9
  %41 = add i16 %40, 1
  store i16 %41, ptr %6, align 2, !tbaa !9
  br label %15, !llvm.loop !11

42:                                               ; preds = %15
  %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 i64
  %46 = add i64 %45, 166502562
  %47 = lshr i64 %46, 1
  %48 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %49 = load i16, ptr %48, align 2, !tbaa !9
  %50 = zext i16 %49 to i64
  %51 = add i64 %50, 166502562
  %52 = shl i64 %51, 15
  %53 = or i64 %47, %52
  %54 = trunc i64 %53 to i16
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = getelementptr inbounds i16, ptr %55, i64 0
  store i16 %54, ptr %56, align 2, !tbaa !9
  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 = distinct !{!11, !12}
!12 = !{!"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 nofree norecurse nosync nounwind willreturn 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 = add i16 %3, 26986
  %5 = xor i16 %4, 11
  %.not = icmp eq i16 %4, 11
  %6 = shl i16 %5, 4
  %7 = and i16 %6, 1008
  %8 = or i16 %7, %5
  %.sroa.0.1 = select i1 %.not, i16 0, i16 %8
  %9 = zext i16 %.sroa.0.1 to i32
  %10 = add nuw nsw i32 %9, 41122
  %11 = lshr i32 %10, 1
  %12 = shl nuw nsw i32 %9, 15
  %13 = or i32 %11, %12
  %14 = trunc i32 %13 to i16
  store i16 %14, ptr %1, align 2, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn 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"}


; Effective O3 passes: AggressiveInstCombinePass,CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LoopRotatePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass