; 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
  %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 i64
  %13 = add i64 %12, 914778474
  %14 = sub i64 %13, 29623
  %15 = trunc i64 %14 to i16
  %16 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  store i16 %15, ptr %16, align 2, !tbaa !9
  store i16 0, ptr %7, align 2, !tbaa !9
  br label %17

17:                                               ; preds = %63, %2
  %18 = load i16, ptr %7, align 2, !tbaa !9
  %19 = zext i16 %18 to i32
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds i16, ptr %20, i64 1
  %22 = load i16, ptr %21, align 2, !tbaa !9
  %23 = zext i16 %22 to i32
  %24 = icmp slt i32 %19, %23
  br i1 %24, label %25, label %66

25:                                               ; preds = %17
  store i16 0, ptr %6, align 2, !tbaa !9
  br label %26

26:                                               ; preds = %34, %25
  %27 = load i16, ptr %6, align 2, !tbaa !9
  %28 = zext i16 %27 to i32
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds i16, ptr %29, i64 1
  %31 = load i16, ptr %30, align 2, !tbaa !9
  %32 = zext i16 %31 to i32
  %33 = icmp slt i32 %28, %32
  br i1 %33, label %34, label %63

34:                                               ; preds = %26
  %35 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %36 = getelementptr inbounds i8, ptr %35, i64 1
  %37 = load i8, ptr %36, align 1, !tbaa !11
  store i8 %37, ptr %8, align 1, !tbaa !11
  %38 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %39 = getelementptr inbounds i8, ptr %38, i64 0
  %40 = load i8, ptr %39, align 1, !tbaa !11
  %41 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %42 = getelementptr inbounds i8, ptr %41, i64 1
  store i8 %40, ptr %42, align 1, !tbaa !11
  %43 = load i8, ptr %8, align 1, !tbaa !11
  %44 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %45 = getelementptr inbounds i8, ptr %44, i64 0
  store i8 %43, ptr %45, align 1, !tbaa !11
  %46 = load i16, ptr %6, align 2, !tbaa !9
  %47 = zext i16 %46 to i64
  %48 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %47
  %49 = load i16, ptr %48, align 2, !tbaa !9
  %50 = zext i16 %49 to i32
  %51 = load i16, ptr %6, align 2, !tbaa !9
  %52 = zext i16 %51 to i64
  %53 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %52
  %54 = load i16, ptr %53, align 2, !tbaa !9
  %55 = zext i16 %54 to i32
  %56 = add nsw i32 %50, %55
  %57 = trunc i32 %56 to i16
  %58 = load i16, ptr %7, align 2, !tbaa !9
  %59 = zext i16 %58 to i64
  %60 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 %59
  store i16 %57, ptr %60, align 2, !tbaa !9
  %61 = load i16, ptr %6, align 2, !tbaa !9
  %62 = add i16 %61, 1
  store i16 %62, ptr %6, align 2, !tbaa !9
  br label %26, !llvm.loop !12

63:                                               ; preds = %26
  %64 = load i16, ptr %7, align 2, !tbaa !9
  %65 = add i16 %64, 1
  store i16 %65, ptr %7, align 2, !tbaa !9
  br label %17, !llvm.loop !14

66:                                               ; preds = %17
  %67 = getelementptr inbounds [1 x i16], ptr %5, i64 0, i64 0
  %68 = load i16, ptr %67, align 2, !tbaa !9
  %69 = zext i16 %68 to i64
  %70 = add i64 %69, 1047729131
  %71 = add i64 %70, 30591
  %72 = trunc i64 %71 to i16
  %73 = load ptr, ptr %4, align 8, !tbaa !5
  %74 = getelementptr inbounds i16, ptr %73, i64 0
  store i16 %72, ptr %74, 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.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 = !{!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 {
  %3 = load i16, ptr %0, align 2, !tbaa !5
  %4 = add i16 %3, -2637
  %.sroa.8.0.extract.shift = lshr i16 %4, 8
  %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 %.preheader.preheader

.preheader.preheader:                             ; preds = %2
  %xtraiter = and i16 %6, 3
  %7 = icmp ult i16 %6, 4
  %unroll_iter = and i16 %6, -4
  %lcmp.mod.not = icmp eq i16 %xtraiter, 0
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.epilog-lcssa
  %.01130 = phi i16 [ %21, %.epilog-lcssa ], [ 0, %.preheader.preheader ]
  %.sroa.0.029 = phi i16 [ %.lcssa, %.epilog-lcssa ], [ %4, %.preheader.preheader ]
  %.sroa.8.028 = phi i16 [ %.sroa.8.0.extract.shift23.lcssa, %.epilog-lcssa ], [ %.sroa.8.0.extract.shift, %.preheader.preheader ]
  br i1 %7, label %.unr-lcssa, label %.preheader.new

.preheader.new:                                   ; preds = %.preheader, %.preheader.new
  %.sroa.0.126 = phi i16 [ %.sroa.8.0.extract.shift23.2, %.preheader.new ], [ %.sroa.0.029, %.preheader ]
  %.sroa.8.125 = phi i16 [ %.sroa.8.0.extract.shift23.3, %.preheader.new ], [ %.sroa.8.028, %.preheader ]
  %niter = phi i16 [ %niter.next.3, %.preheader.new ], [ 0, %.preheader ]
  %8 = shl i16 %.sroa.0.126, 9
  %.sroa.0.0.insert.ext14 = shl nsw i16 %.sroa.8.125, 1
  %9 = and i16 %.sroa.0.0.insert.ext14, 256
  %10 = or disjoint i16 %8, %9
  %11 = lshr i16 %8, 15
  %12 = shl i16 %.sroa.8.125, 2
  %.sroa.8.0.extract.shift23.1 = or disjoint i16 %11, %12
  %13 = shl i16 %10, 2
  %14 = shl i16 %.sroa.8.125, 3
  %.sroa.0.0.insert.ext14.2 = and i16 %14, 256
  %15 = or disjoint i16 %13, %.sroa.0.0.insert.ext14.2
  %.sroa.8.0.extract.shift23.2 = lshr exact i16 %15, 7
  %16 = shl i16 %.sroa.8.0.extract.shift23.1, 10
  %17 = or disjoint i16 %16, %.sroa.8.0.extract.shift23.2
  %.sroa.8.0.extract.shift23.3 = lshr i16 %17, 8
  %niter.next.3 = add i16 %niter, 4
  %niter.ncmp.3 = icmp eq i16 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %.unr-lcssa, label %.preheader.new, !llvm.loop !9

.unr-lcssa:                                       ; preds = %.preheader.new, %.preheader
  %.lcssa.ph = phi i16 [ poison, %.preheader ], [ %.sroa.8.0.extract.shift23.2, %.preheader.new ]
  %.sroa.8.0.extract.shift23.lcssa.ph = phi i16 [ poison, %.preheader ], [ %.sroa.8.0.extract.shift23.3, %.preheader.new ]
  %.sroa.0.126.unr = phi i16 [ %.sroa.0.029, %.preheader ], [ %.sroa.8.0.extract.shift23.2, %.preheader.new ]
  %.sroa.8.125.unr = phi i16 [ %.sroa.8.028, %.preheader ], [ %.sroa.8.0.extract.shift23.3, %.preheader.new ]
  br i1 %lcmp.mod.not, label %.epilog-lcssa, label %.epil.preheader

.epil.preheader:                                  ; preds = %.unr-lcssa, %.epil.preheader
  %.sroa.0.126.epil = phi i16 [ %19, %.epil.preheader ], [ %.sroa.0.126.unr, %.unr-lcssa ]
  %.sroa.8.125.epil = phi i16 [ %.sroa.8.0.extract.shift23.epil, %.epil.preheader ], [ %.sroa.8.125.unr, %.unr-lcssa ]
  %epil.iter = phi i16 [ %epil.iter.next, %.epil.preheader ], [ 0, %.unr-lcssa ]
  %18 = shl i16 %.sroa.0.126.epil, 9
  %.sroa.0.0.insert.ext14.epil = shl nsw i16 %.sroa.8.125.epil, 1
  %19 = and i16 %.sroa.0.0.insert.ext14.epil, 510
  %20 = or disjoint i16 %18, %19
  %.sroa.8.0.extract.shift23.epil = lshr i16 %20, 8
  %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 %.epilog-lcssa, label %.epil.preheader, !llvm.loop !11

.epilog-lcssa:                                    ; preds = %.epil.preheader, %.unr-lcssa
  %.lcssa = phi i16 [ %.lcssa.ph, %.unr-lcssa ], [ %19, %.epil.preheader ]
  %.sroa.8.0.extract.shift23.lcssa = phi i16 [ %.sroa.8.0.extract.shift23.lcssa.ph, %.unr-lcssa ], [ %.sroa.8.0.extract.shift23.epil, %.epil.preheader ]
  %21 = add nuw i16 %.01130, 1
  %exitcond32.not = icmp eq i16 %21, %6
  br i1 %exitcond32.not, label %._crit_edge, label %.preheader, !llvm.loop !13

._crit_edge:                                      ; preds = %.epilog-lcssa, %2
  %.sroa.8.0.lcssa = phi i16 [ %.sroa.8.0.extract.shift, %2 ], [ %.sroa.8.0.extract.shift23.lcssa, %.epilog-lcssa ]
  %.sroa.0.0.lcssa = phi i16 [ %4, %2 ], [ %.lcssa, %.epilog-lcssa ]
  %.sroa.8.0.insert.shift = shl nuw i16 %.sroa.8.0.lcssa, 8
  %.sroa.0.0.insert.ext = and i16 %.sroa.0.0.lcssa, 255
  %.sroa.0.0.insert.insert = add nuw nsw i16 %.sroa.0.0.insert.ext, -29846
  %22 = add i16 %.sroa.0.0.insert.insert, %.sroa.8.0.insert.shift
  store i16 %22, 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"}
!13 = distinct !{!13, !10}


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