; LLVM IR from wumo/vkg :: src/par/test/test_sprune.ll_par_sprune (is_culled)

; 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"

%struct.par_sprune__context = type { ptr, i32, ptr, i32, ptr, i32, [2 x ptr], [2 x ptr] }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @par_sprune__is_culled(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %38, %2
  %9 = load i32, ptr %6, align 4, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.par_sprune__context, ptr %10, i32 0, i32 2
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %21

14:                                               ; preds = %8
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.par_sprune__context, ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !11
  %18 = getelementptr inbounds i32, ptr %17, i64 -2
  %19 = getelementptr inbounds i32, ptr %18, i64 1
  %20 = load i32, ptr %19, align 4, !tbaa !9
  br label %22

21:                                               ; preds = %8
  br label %22

22:                                               ; preds = %21, %14
  %23 = phi i32 [ %20, %14 ], [ 0, %21 ]
  %24 = icmp slt i32 %9, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %22
  store i32 2, ptr %7, align 4
  br label %41

26:                                               ; preds = %22
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.par_sprune__context, ptr %28, i32 0, i32 2
  %30 = load ptr, ptr %29, align 8, !tbaa !11
  %31 = load i32, ptr %6, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds i32, ptr %30, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = icmp eq i32 %27, %34
  br i1 %35, label %36, label %37

36:                                               ; preds = %26
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %41

37:                                               ; preds = %26
  br label %38

38:                                               ; preds = %37
  %39 = load i32, ptr %6, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %6, align 4, !tbaa !9
  br label %8, !llvm.loop !13

41:                                               ; preds = %36, %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %42 = load i32, ptr %7, align 4
  switch i32 %42, label %46 [
    i32 2, label %43
    i32 1, label %44
  ]

43:                                               ; preds = %41
  store i1 false, ptr %3, align 1
  br label %44

44:                                               ; preds = %43, %41
  %45 = load i1, ptr %3, align 1
  ret i1 %45

46:                                               ; preds = %41
  unreachable
}

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 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 16}
!12 = !{!"", !6, i64 0, !10, i64 8, !6, i64 16, !10, i64 24, !6, i64 32, !10, i64 40, !7, i64 48, !7, i64 64}
!13 = distinct !{!13, !14}
!14 = !{!"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(read, inaccessiblemem: none) uwtable
define dso_local zeroext i1 @par_sprune__is_culled(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %.split13.us, label %.split

.split:                                           ; preds = %2
  %5 = getelementptr inbounds i8, ptr %4, i64 -4
  %6 = load i32, ptr %5, align 4, !tbaa !11
  %7 = sext i32 %6 to i64
  %smax = tail call i32 @llvm.smax.i32(i32 %6, i32 0)
  %wide.trip.count = zext nneg i32 %smax to i64
  br label %8

8:                                                ; preds = %9, %.split
  %indvars.iv = phi i64 [ %indvars.iv.next, %9 ], [ 0, %.split ]
  %exitcond.not = icmp eq i64 %indvars.iv, %wide.trip.count
  br i1 %exitcond.not, label %.split13.us.loopexit, label %9

9:                                                ; preds = %8
  %10 = getelementptr inbounds i32, ptr %4, i64 %indvars.iv
  %11 = load i32, ptr %10, align 4, !tbaa !11
  %12 = icmp eq i32 %11, %1
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  br i1 %12, label %.split13.us.loopexit, label %8, !llvm.loop !12

.split13.us.loopexit:                             ; preds = %9, %8
  %.not11.le = icmp slt i64 %indvars.iv, %7
  br label %.split13.us

.split13.us:                                      ; preds = %.split13.us.loopexit, %2
  %.us-phi = phi i1 [ false, %2 ], [ %.not11.le, %.split13.us.loopexit ]
  ret i1 %.us-phi
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1

attributes #0 = { nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) 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, !7, i64 16}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16, !10, i64 24, !7, i64 32, !10, i64 40, !8, i64 48, !8, i64 64}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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