; 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, 2885
  %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 = %22, %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 %39

22:                                               ; preds = %14
  %23 = load i16, ptr %6, align 2, !tbaa !9
  %24 = zext i16 %23 to i64
  %25 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %24
  %26 = load i16, ptr %25, align 2, !tbaa !9
  %27 = zext i16 %26 to i32
  %28 = load i16, ptr %6, align 2, !tbaa !9
  %29 = zext i16 %28 to i64
  %30 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %29
  %31 = load i16, ptr %30, align 2, !tbaa !9
  %32 = zext i16 %31 to i32
  %33 = add nsw i32 %32, %27
  %34 = trunc i32 %33 to i16
  store i16 %34, ptr %30, align 2, !tbaa !9
  %35 = load i16, ptr %6, align 2, !tbaa !9
  %36 = zext i16 %35 to i64
  %37 = add i64 %36, 2
  %38 = trunc i64 %37 to i16
  store i16 %38, ptr %6, align 2, !tbaa !9
  br label %14, !llvm.loop !11

39:                                               ; preds = %14
  %40 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %41 = load i16, ptr %40, align 2, !tbaa !9
  %42 = zext i16 %41 to i32
  %43 = sub nsw i32 %42, 46601
  %44 = trunc i32 %43 to i16
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds i16, ptr %45, i64 0
  store i16 %44, ptr %46, 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: 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, 2885
  %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
  %7 = add i16 %6, -1
  %8 = lshr i16 %7, 1
  %9 = add nuw i16 %8, 1
  %xtraiter = and i16 %9, 7
  %10 = icmp ult i16 %6, 15
  br i1 %10, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i16 %9, -8
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.sroa.0.07 = phi i16 [ %4, %.lr.ph.preheader.new ], [ %11, %.lr.ph ]
  %niter = phi i16 [ 0, %.lr.ph.preheader.new ], [ %niter.next.7, %.lr.ph ]
  %11 = shl i16 %.sroa.0.07, 8
  %niter.next.7 = add i16 %niter, 8
  %niter.ncmp.7.not = icmp eq i16 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7.not, 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 ], [ %11, %.lr.ph ]
  %.sroa.0.07.unr = phi i16 [ %4, %.lr.ph.preheader ], [ %11, %.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 [ %12, %.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 ]
  %12 = shl i16 %.sroa.0.07.epil, 1
  %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 ], [ %12, %.lr.ph.epil ]
  %13 = add i16 %.sroa.0.0.lcssa, 18935
  store i16 %13, 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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


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