; 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: nounwind uwtable
define dso_local void @RandomFunc(ptr noundef %0, ptr noundef %1) #0 {
  %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 i32
  %11 = add nsw i32 %10, 11483
  %12 = trunc i32 %11 to i16
  %13 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  store i16 %12, ptr %13, align 2, !tbaa !9
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %14

14:                                               ; preds = %66, %2
  %15 = load i16, ptr %6, align 2, !tbaa !9
  %16 = zext i16 %15 to i32
  %17 = icmp slt i32 %16, 0
  br i1 %17, label %18, label %69

18:                                               ; preds = %14
  %19 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %20 = load i16, ptr %19, align 2, !tbaa !9
  %21 = zext i16 %20 to i32
  %22 = load i16, ptr %6, align 2, !tbaa !9
  %23 = zext i16 %22 to i32
  %24 = icmp eq i32 %21, %23
  br i1 %24, label %25, label %66

25:                                               ; preds = %18
  %26 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %27 = load i16, ptr %26, align 2, !tbaa !9
  %28 = zext i16 %27 to i32
  %29 = load i16, ptr %6, align 2, !tbaa !9
  %30 = zext i16 %29 to i32
  %31 = icmp slt i32 %28, %30
  br i1 %31, label %32, label %46

32:                                               ; preds = %25
  %33 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %34 = load i16, ptr %33, align 2, !tbaa !9
  %35 = zext i16 %34 to i32
  %36 = load i16, ptr %6, align 2, !tbaa !9
  %37 = zext i16 %36 to i64
  %38 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %37
  %39 = load i16, ptr %38, align 2, !tbaa !9
  %40 = zext i16 %39 to i32
  %41 = add nsw i32 %35, %40
  %42 = trunc i32 %41 to i16
  %43 = load i16, ptr %6, align 2, !tbaa !9
  %44 = zext i16 %43 to i64
  %45 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %44
  store i16 %42, ptr %45, align 2, !tbaa !9
  br label %65

46:                                               ; preds = %25
  %47 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %48 = load i16, ptr %47, align 2, !tbaa !9
  %49 = zext i16 %48 to i32
  %50 = load i16, ptr %6, align 2, !tbaa !9
  %51 = zext i16 %50 to i64
  %52 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %51
  %53 = load i16, ptr %52, align 2, !tbaa !9
  %54 = zext i16 %53 to i32
  %55 = sub nsw i32 %49, %54
  %56 = and i32 %55, 31
  %57 = shl i32 %56, 4
  %58 = load i16, ptr %6, align 2, !tbaa !9
  %59 = zext i16 %58 to i64
  %60 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %59
  %61 = load i16, ptr %60, align 2, !tbaa !9
  %62 = zext i16 %61 to i32
  %63 = or i32 %62, %57
  %64 = trunc i32 %63 to i16
  store i16 %64, ptr %60, align 2, !tbaa !9
  br label %65

65:                                               ; preds = %46, %32
  br label %66

66:                                               ; preds = %65, %18
  %67 = load i16, ptr %6, align 2, !tbaa !9
  %68 = add i16 %67, 1
  store i16 %68, ptr %6, align 2, !tbaa !9
  br label %14, !llvm.loop !11

69:                                               ; preds = %14
  %70 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %71 = load i16, ptr %70, align 2, !tbaa !9
  %72 = zext i16 %71 to i32
  %73 = shl i32 %72, 7
  %74 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %75 = load i16, ptr %74, align 2, !tbaa !9
  %76 = zext i16 %75 to i32
  %77 = ashr i32 %76, 9
  %78 = or i32 %73, %77
  %79 = mul nsw i32 %78, 49709
  %80 = trunc i32 %79 to i16
  %81 = load ptr, ptr %4, align 8, !tbaa !5
  %82 = getelementptr inbounds i16, ptr %81, i64 0
  store i16 %80, ptr %82, 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.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, 11483
  %5 = tail call i16 @llvm.fshl.i16(i16 %4, i16 %4, i16 7)
  %6 = mul i16 %5, -15827
  store i16 %6, ptr %1, align 2, !tbaa !5
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i16 @llvm.fshl.i16(i16, i16, i16) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass