; 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 = %70, %2
  %15 = load i16, ptr %6, align 2, !tbaa !9
  %16 = zext i16 %15 to i32
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds i16, ptr %17, i64 1
  %19 = load i16, ptr %18, align 2, !tbaa !9
  %20 = zext i16 %19 to i32
  %21 = icmp slt i32 %16, %20
  br i1 %21, label %22, label %73

22:                                               ; preds = %14
  %23 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %24 = load i16, ptr %23, align 2, !tbaa !9
  %25 = zext i16 %24 to i32
  %26 = load i16, ptr %6, align 2, !tbaa !9
  %27 = zext i16 %26 to i32
  %28 = icmp eq i32 %25, %27
  br i1 %28, label %29, label %70

29:                                               ; preds = %22
  %30 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %31 = load i16, ptr %30, align 2, !tbaa !9
  %32 = zext i16 %31 to i32
  %33 = load i16, ptr %6, align 2, !tbaa !9
  %34 = zext i16 %33 to i32
  %35 = icmp slt i32 %32, %34
  br i1 %35, label %36, label %50

36:                                               ; preds = %29
  %37 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %38 = load i16, ptr %37, align 2, !tbaa !9
  %39 = zext i16 %38 to i32
  %40 = load i16, ptr %6, align 2, !tbaa !9
  %41 = zext i16 %40 to i64
  %42 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %41
  %43 = load i16, ptr %42, align 2, !tbaa !9
  %44 = zext i16 %43 to i32
  %45 = add nsw i32 %39, %44
  %46 = trunc i32 %45 to i16
  %47 = load i16, ptr %6, align 2, !tbaa !9
  %48 = zext i16 %47 to i64
  %49 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %48
  store i16 %46, ptr %49, align 2, !tbaa !9
  br label %69

50:                                               ; preds = %29
  %51 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %52 = load i16, ptr %51, align 2, !tbaa !9
  %53 = zext i16 %52 to i32
  %54 = load i16, ptr %6, align 2, !tbaa !9
  %55 = zext i16 %54 to i64
  %56 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %55
  %57 = load i16, ptr %56, align 2, !tbaa !9
  %58 = zext i16 %57 to i32
  %59 = sub nsw i32 %53, %58
  %60 = and i32 %59, 31
  %61 = shl i32 %60, 4
  %62 = load i16, ptr %6, align 2, !tbaa !9
  %63 = zext i16 %62 to i64
  %64 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %63
  %65 = load i16, ptr %64, align 2, !tbaa !9
  %66 = zext i16 %65 to i32
  %67 = or i32 %66, %61
  %68 = trunc i32 %67 to i16
  store i16 %68, ptr %64, align 2, !tbaa !9
  br label %69

69:                                               ; preds = %50, %36
  br label %70

70:                                               ; preds = %69, %22
  %71 = load i16, ptr %6, align 2, !tbaa !9
  %72 = add i16 %71, 1
  store i16 %72, ptr %6, align 2, !tbaa !9
  br label %14, !llvm.loop !11

73:                                               ; preds = %14
  %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 = shl i32 %76, 7
  %78 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %79 = load i16, ptr %78, align 2, !tbaa !9
  %80 = zext i16 %79 to i32
  %81 = ashr i32 %80, 9
  %82 = or i32 %77, %81
  %83 = mul nsw i32 %82, 49709
  %84 = trunc i32 %83 to i16
  %85 = load ptr, ptr %4, align 8, !tbaa !5
  %86 = getelementptr inbounds i16, ptr %85, i64 0
  store i16 %84, ptr %86, 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: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass