; LLVM IR from viveakrt/Competitive-programing :: SPOJ/allin1.ll (Z5getidP4nodei)

; 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.node = type { i32, i32, i32, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z2szP4node(ptr noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5getidP4nodei(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %9, label %8

8:                                                ; preds = %2
  store i32 0, ptr %3, align 4
  br label %45

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.node, ptr %10, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !11
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %21

15:                                               ; preds = %9
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.node, ptr %16, i32 0, i32 3
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = call noundef i32 @_Z2szP4node(ptr noundef %18)
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %3, align 4
  br label %45

21:                                               ; preds = %9
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.node, ptr %23, i32 0, i32 1
  %25 = load i32, ptr %24, align 4, !tbaa !11
  %26 = icmp sgt i32 %22, %25
  br i1 %26, label %27, label %39

27:                                               ; preds = %21
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.node, ptr %28, i32 0, i32 4
  %30 = load ptr, ptr %29, align 8, !tbaa !14
  %31 = load i32, ptr %5, align 4, !tbaa !9
  %32 = call noundef i32 @_Z5getidP4nodei(ptr noundef %30, i32 noundef %31)
  %33 = add nsw i32 %32, 1
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.node, ptr %34, i32 0, i32 3
  %36 = load ptr, ptr %35, align 8, !tbaa !13
  %37 = call noundef i32 @_Z2szP4node(ptr noundef %36)
  %38 = add nsw i32 %33, %37
  store i32 %38, ptr %3, align 4
  br label %45

39:                                               ; preds = %21
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.node, ptr %40, i32 0, i32 3
  %42 = load ptr, ptr %41, align 8, !tbaa !13
  %43 = load i32, ptr %5, align 4, !tbaa !9
  %44 = call noundef i32 @_Z5getidP4nodei(ptr noundef %42, i32 noundef %43)
  store i32 %44, ptr %3, align 4
  br label %45

45:                                               ; preds = %39, %27, %15, %8
  %46 = load i32, ptr %3, align 4
  ret i32 %46
}

attributes #0 = { mustprogress 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 = { mustprogress 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 4}
!12 = !{!"_ZTS4node", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 16}
!14 = !{!12, !6, i64 24}


; 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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z2szP4node(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5getidP4nodei(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not17 = icmp eq ptr %0, null
  br i1 %.not17, label %common.ret29, label %.lr.ph

.lr.ph:                                           ; preds = %2, %tailrecurse
  %.tr18 = phi ptr [ %23, %tailrecurse ], [ %0, %2 ]
  %3 = getelementptr inbounds i8, ptr %.tr18, i64 4
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = icmp eq i32 %4, %1
  br i1 %5, label %6, label %11

6:                                                ; preds = %.lr.ph
  %7 = getelementptr inbounds i8, ptr %.tr18, i64 16
  %8 = load ptr, ptr %7, align 8, !tbaa !11
  %9 = tail call noundef i32 @_Z2szP4node(ptr noundef %8)
  %10 = add nsw i32 %9, 1
  br label %common.ret29

11:                                               ; preds = %.lr.ph
  %12 = icmp slt i32 %4, %1
  br i1 %12, label %13, label %tailrecurse

common.ret29:                                     ; preds = %6, %2, %tailrecurse, %13
  %common.ret29.op = phi i32 [ %21, %13 ], [ %10, %6 ], [ 0, %2 ], [ 0, %tailrecurse ]
  ret i32 %common.ret29.op

13:                                               ; preds = %11
  %14 = getelementptr inbounds i8, ptr %.tr18, i64 24
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  %16 = tail call noundef i32 @_Z5getidP4nodei(ptr noundef %15, i32 noundef %1)
  %17 = add nsw i32 %16, 1
  %18 = getelementptr inbounds i8, ptr %.tr18, i64 16
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = tail call noundef i32 @_Z2szP4node(ptr noundef %19)
  %21 = add nsw i32 %17, %20
  br label %common.ret29

tailrecurse:                                      ; preds = %11
  %22 = getelementptr inbounds i8, ptr %.tr18, i64 16
  %23 = load ptr, ptr %22, align 8, !tbaa !11
  %.not = icmp eq ptr %23, null
  br i1 %.not, label %common.ret29, label %.lr.ph
}

attributes #0 = { mustprogress 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" }

!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 4}
!6 = !{!"_ZTS4node", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !10, i64 24}


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