; 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 i16, align 2
  %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 2, 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 %7, align 2, !tbaa !9
  br label %16

16:                                               ; preds = %59, %2
  %17 = load i16, ptr %7, 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 %64

24:                                               ; preds = %16
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %25

25:                                               ; preds = %33, %24
  %26 = load i16, ptr %6, align 2, !tbaa !9
  %27 = zext i16 %26 to i32
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = getelementptr inbounds i16, ptr %28, i64 1
  %30 = load i16, ptr %29, align 2, !tbaa !9
  %31 = zext i16 %30 to i32
  %32 = icmp slt i32 %27, %31
  br i1 %32, label %33, label %59

33:                                               ; preds = %25
  %34 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %35 = getelementptr inbounds i8, ptr %34, i64 1
  %36 = load i8, ptr %35, align 1, !tbaa !11
  store i8 %36, ptr %8, align 1, !tbaa !11
  %37 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %38 = getelementptr inbounds i8, ptr %37, i64 0
  %39 = load i8, ptr %38, align 1, !tbaa !11
  %40 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %41 = getelementptr inbounds i8, ptr %40, i64 1
  store i8 %39, ptr %41, align 1, !tbaa !11
  %42 = load i8, ptr %8, align 1, !tbaa !11
  %43 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %44 = getelementptr inbounds i8, ptr %43, i64 0
  store i8 %42, ptr %44, align 1, !tbaa !11
  %45 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %46 = load i16, ptr %45, align 2, !tbaa !9
  %47 = zext i16 %46 to i32
  %48 = load i16, ptr %7, align 2, !tbaa !9
  %49 = zext i16 %48 to i64
  %50 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %49
  %51 = load i16, ptr %50, align 2, !tbaa !9
  %52 = zext i16 %51 to i32
  %53 = xor i32 %52, %47
  %54 = trunc i32 %53 to i16
  store i16 %54, ptr %50, align 2, !tbaa !9
  %55 = load i16, ptr %6, align 2, !tbaa !9
  %56 = zext i16 %55 to i64
  %57 = add i64 %56, 2
  %58 = trunc i64 %57 to i16
  store i16 %58, ptr %6, align 2, !tbaa !9
  br label %25, !llvm.loop !12

59:                                               ; preds = %25
  %60 = load i16, ptr %7, align 2, !tbaa !9
  %61 = zext i16 %60 to i64
  %62 = add i64 %61, 2
  %63 = trunc i64 %62 to i16
  store i16 %63, ptr %7, align 2, !tbaa !9
  br label %16, !llvm.loop !14

64:                                               ; preds = %16
  %65 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %66 = load i16, ptr %65, align 2, !tbaa !9
  %67 = zext i16 %66 to i32
  %68 = ashr i32 %67, 7
  %69 = or i32 %68, 15355
  %70 = trunc i32 %69 to i16
  %71 = load ptr, ptr %4, align 8, !tbaa !5
  %72 = getelementptr inbounds i16, ptr %71, i64 0
  store i16 %70, ptr %72, align 2, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 2, 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"}
!14 = distinct !{!14, !13}


; 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 {
._crit_edge:
  %2 = load i16, ptr %0, align 2, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 2
  %4 = load i16, ptr %3, align 2, !tbaa !5
  %.not = icmp eq i16 %4, 0
  %5 = lshr i16 %2, 7
  %6 = or i16 %5, 15355
  %7 = select i1 %.not, i16 %6, i16 15355
  store i16 %7, 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"}


; Effective O3 passes: BDCEPass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopFullUnrollPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass