; 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 = sub i64 %10, 51238316
  %12 = sub i64 %11, 47038
  %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 = %23, %2
  %16 = load i16, ptr %6, align 2, !tbaa !9
  %17 = zext i16 %16 to i32
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds i16, ptr %18, i64 1
  %20 = load i16, ptr %19, align 2, !tbaa !9
  %21 = zext i16 %20 to i32
  %22 = icmp slt i32 %17, %21
  br i1 %22, label %23, label %36

23:                                               ; preds = %15
  %24 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %25 = load i16, ptr %24, align 2, !tbaa !9
  %26 = zext i16 %25 to i32
  %27 = and i32 %26, 63
  %28 = shl i32 %27, 4
  %29 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %30 = load i16, ptr %29, align 2, !tbaa !9
  %31 = zext i16 %30 to i32
  %32 = or i32 %31, %28
  %33 = trunc i32 %32 to i16
  store i16 %33, ptr %29, align 2, !tbaa !9
  %34 = load i16, ptr %6, align 2, !tbaa !9
  %35 = add i16 %34, 1
  store i16 %35, ptr %6, align 2, !tbaa !9
  br label %15, !llvm.loop !11

36:                                               ; preds = %15
  %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 = shl i32 %39, 7
  %41 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %42 = load i16, ptr %41, align 2, !tbaa !9
  %43 = zext i16 %42 to i32
  %44 = ashr i32 %43, 9
  %45 = or i32 %40, %44
  %46 = sub nsw i32 %45, 28768
  %47 = trunc i32 %46 to i16
  %48 = load ptr, ptr %4, align 8, !tbaa !5
  %49 = getelementptr inbounds i16, ptr %48, i64 0
  store i16 %47, ptr %49, 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: 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 i16, ptr %0, align 2, !tbaa !5
  %4 = add i16 %3, 29334
  %5 = getelementptr inbounds i8, ptr %0, i64 2
  %6 = load i16, ptr %5, align 2, !tbaa !5
  %.not = icmp eq i16 %6, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %xtraiter = and i16 %6, 3
  %7 = icmp ult i16 %6, 4
  br i1 %7, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i16 %6, -4
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.sroa.0.07 = phi i16 [ %4, %.lr.ph.preheader.new ], [ %19, %.lr.ph ]
  %niter = phi i16 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %8 = shl i16 %.sroa.0.07, 4
  %9 = and i16 %8, 1008
  %10 = or i16 %9, %.sroa.0.07
  %11 = shl i16 %10, 4
  %12 = and i16 %11, 1008
  %13 = or i16 %12, %10
  %14 = shl i16 %13, 4
  %15 = and i16 %14, 1008
  %16 = or i16 %15, %13
  %17 = shl i16 %16, 4
  %18 = and i16 %17, 1008
  %19 = or i16 %18, %16
  %niter.next.3 = add i16 %niter, 4
  %niter.ncmp.3 = icmp eq i16 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !9

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi i16 [ poison, %.lr.ph.preheader ], [ %19, %.lr.ph ]
  %.sroa.0.07.unr = phi i16 [ %4, %.lr.ph.preheader ], [ %19, %.lr.ph ]
  %lcmp.mod.not = icmp eq i16 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil
  %.sroa.0.07.epil = phi i16 [ %22, %.lr.ph.epil ], [ %.sroa.0.07.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i16 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %20 = shl i16 %.sroa.0.07.epil, 4
  %21 = and i16 %20, 1008
  %22 = or i16 %21, %.sroa.0.07.epil
  %epil.iter.next = add i16 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i16 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph.epil, !llvm.loop !11

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil, %2
  %.sroa.0.0.lcssa = phi i16 [ %4, %2 ], [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %22, %.lr.ph.epil ]
  %23 = tail call i16 @llvm.fshl.i16(i16 %.sroa.0.0.lcssa, i16 %.sroa.0.0.lcssa, i16 7)
  %24 = add i16 %23, -28768
  store i16 %24, 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 = { 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" }
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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


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