; LLVM IR from tum-i4/obfuscation-benchmarks :: small-programs (16b-1-1-0-0-dc-2-2-0)

; 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"

@.str = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %12 = load ptr, ptr %5, align 8, !tbaa !9
  %13 = getelementptr inbounds ptr, ptr %12, i64 1
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  store ptr %14, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %15 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %15, ptr %10, align 8, !tbaa !9
  br label %16

16:                                               ; preds = %26, %2
  %17 = load ptr, ptr %10, align 8, !tbaa !9
  %18 = load i8, ptr %17, align 1, !tbaa !11
  %19 = icmp ne i8 %18, 0
  br i1 %19, label %20, label %29

20:                                               ; preds = %16
  %21 = load ptr, ptr %10, align 8, !tbaa !9
  %22 = load i8, ptr %21, align 1, !tbaa !11
  %23 = sext i8 %22 to i32
  %24 = load i32, ptr %8, align 4, !tbaa !5
  %25 = add nsw i32 %24, %23
  store i32 %25, ptr %8, align 4, !tbaa !5
  br label %26

26:                                               ; preds = %20
  %27 = load ptr, ptr %10, align 8, !tbaa !9
  %28 = getelementptr inbounds i8, ptr %27, i32 1
  store ptr %28, ptr %10, align 8, !tbaa !9
  br label %16, !llvm.loop !12

29:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %30 = load ptr, ptr %10, align 8, !tbaa !9
  %31 = load ptr, ptr %9, align 8, !tbaa !9
  %32 = ptrtoint ptr %30 to i64
  %33 = ptrtoint ptr %31 to i64
  %34 = sub i64 %32, %33
  %35 = trunc i64 %34 to i32
  store i32 %35, ptr %11, align 4, !tbaa !5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %36

36:                                               ; preds = %49, %29
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = load i32, ptr %11, align 4, !tbaa !5
  %39 = icmp ult i32 %37, %38
  br i1 %39, label %40, label %52

40:                                               ; preds = %36
  %41 = load ptr, ptr %9, align 8, !tbaa !9
  %42 = load i32, ptr %6, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %44 = getelementptr inbounds i8, ptr %41, i64 %43
  %45 = load i8, ptr %44, align 1, !tbaa !11
  %46 = sext i8 %45 to i32
  %47 = load i32, ptr %8, align 4, !tbaa !5
  %48 = add nsw i32 %47, %46
  store i32 %48, ptr %8, align 4, !tbaa !5
  br label %49

49:                                               ; preds = %40
  %50 = load i32, ptr %6, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %6, align 4, !tbaa !5
  br label %36, !llvm.loop !14

52:                                               ; preds = %36
  %53 = load i32, ptr %8, align 4, !tbaa !5
  %54 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %53)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  ret i32 0
}

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

declare i32 @printf(ptr noundef, ...) #2

; 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 = { "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 #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@.str = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %1, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = load i8, ptr %4, align 1, !tbaa !9
  %.not17 = icmp eq i8 %5, 0
  br i1 %.not17, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %6 = phi i8 [ %10, %.lr.ph ], [ %5, %2 ]
  %.01419 = phi ptr [ %9, %.lr.ph ], [ %4, %2 ]
  %.01518 = phi i32 [ %8, %.lr.ph ], [ 0, %2 ]
  %7 = sext i8 %6 to i32
  %8 = add nsw i32 %.01518, %7
  %9 = getelementptr inbounds i8, ptr %.01419, i64 1
  %10 = load i8, ptr %9, align 1, !tbaa !9
  %.not = icmp eq i8 %10, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

._crit_edge:                                      ; preds = %.lr.ph, %2
  %.015.lcssa = phi i32 [ 0, %2 ], [ %8, %.lr.ph ]
  %.014.lcssa = phi ptr [ %4, %2 ], [ %9, %.lr.ph ]
  %11 = ptrtoint ptr %.014.lcssa to i64
  %12 = ptrtoint ptr %4 to i64
  %13 = sub i64 %11, %12
  %14 = and i64 %13, 4294967295
  %.not27 = icmp eq i64 %14, 0
  br i1 %.not27, label %._crit_edge25, label %.lr.ph24.preheader

.lr.ph24.preheader:                               ; preds = %._crit_edge
  %wide.trip.count = and i64 %13, 4294967295
  %min.iters.check = icmp ult i64 %wide.trip.count, 8
  br i1 %min.iters.check, label %.lr.ph24.preheader37, label %vector.ph

vector.ph:                                        ; preds = %.lr.ph24.preheader
  %n.mod.vf = and i64 %13, 7
  %n.vec = sub nsw i64 %wide.trip.count, %n.mod.vf
  %15 = insertelement <4 x i32> <i32 poison, i32 0, i32 0, i32 0>, i32 %.015.lcssa, i64 0
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.phi = phi <4 x i32> [ %15, %vector.ph ], [ %20, %vector.body ]
  %vec.phi35 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %21, %vector.body ]
  %16 = getelementptr inbounds i8, ptr %4, i64 %index
  %17 = getelementptr inbounds i8, ptr %16, i64 4
  %wide.load = load <4 x i8>, ptr %16, align 1, !tbaa !9
  %wide.load36 = load <4 x i8>, ptr %17, align 1, !tbaa !9
  %18 = sext <4 x i8> %wide.load to <4 x i32>
  %19 = sext <4 x i8> %wide.load36 to <4 x i32>
  %20 = add <4 x i32> %vec.phi, %18
  %21 = add <4 x i32> %vec.phi35, %19
  %index.next = add nuw i64 %index, 8
  %22 = icmp eq i64 %index.next, %n.vec
  br i1 %22, label %middle.block, label %vector.body, !llvm.loop !12

middle.block:                                     ; preds = %vector.body
  %bin.rdx = add <4 x i32> %21, %20
  %23 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx)
  %cmp.n = icmp eq i64 %n.mod.vf, 0
  br i1 %cmp.n, label %._crit_edge25, label %.lr.ph24.preheader37

.lr.ph24.preheader37:                             ; preds = %middle.block, %.lr.ph24.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph24.preheader ], [ %n.vec, %middle.block ]
  %.121.ph = phi i32 [ %.015.lcssa, %.lr.ph24.preheader ], [ %23, %middle.block ]
  br label %.lr.ph24

.lr.ph24:                                         ; preds = %.lr.ph24.preheader37, %.lr.ph24
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph24 ], [ %indvars.iv.ph, %.lr.ph24.preheader37 ]
  %.121 = phi i32 [ %27, %.lr.ph24 ], [ %.121.ph, %.lr.ph24.preheader37 ]
  %24 = getelementptr inbounds i8, ptr %4, i64 %indvars.iv
  %25 = load i8, ptr %24, align 1, !tbaa !9
  %26 = sext i8 %25 to i32
  %27 = add nsw i32 %.121, %26
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge25, label %.lr.ph24, !llvm.loop !15

._crit_edge25:                                    ; preds = %.lr.ph24, %middle.block, %._crit_edge
  %.1.lcssa = phi i32 [ %.015.lcssa, %._crit_edge ], [ %23, %middle.block ], [ %27, %.lr.ph24 ]
  %28 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %.1.lcssa)
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>) #2

attributes #0 = { nofree 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 = { nofree nounwind "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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11, !13, !14}
!13 = !{!"llvm.loop.isvectorized", i32 1}
!14 = !{!"llvm.loop.unroll.runtime.disable"}
!15 = distinct !{!15, !11, !14, !13}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass