; LLVM IR from simon-zerisenay/42_Push_Swap :: src (bidirectional_moves_counter)

; 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.t_list = type { i32, i32, i32, i32, i32, 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 i32 @count_backward_moves(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %12, %2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.t_list, ptr %7, i32 0, i32 1
  %9 = load i32, ptr %8, align 4, !tbaa !11
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = icmp ne i32 %9, %10
  br i1 %11, label %12, label %16

12:                                               ; preds = %6
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.t_list, ptr %13, i32 0, i32 5
  %15 = load ptr, ptr %14, align 8, !tbaa !13
  store ptr %15, ptr %3, align 8, !tbaa !5
  br label %6, !llvm.loop !14

16:                                               ; preds = %6
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.t_list, ptr %17, i32 0, i32 5
  %19 = load ptr, ptr %18, align 8, !tbaa !13
  store ptr %19, ptr %3, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %23, %16
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %29

23:                                               ; preds = %20
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %5, align 4, !tbaa !9
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.t_list, ptr %26, i32 0, i32 5
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  store ptr %28, ptr %3, align 8, !tbaa !5
  br label %20, !llvm.loop !16

29:                                               ; preds = %20
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %31
}

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, !10, i64 4}
!12 = !{!"t_list", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 24}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


; 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 range(i32 -2147483647, -2147483648) i32 @count_backward_moves(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %.not9 = icmp eq i32 %4, %1
  br i1 %.not9, label %.preheader.preheader, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.0710 = phi ptr [ %6, %.lr.ph ], [ %0, %2 ]
  %5 = getelementptr inbounds i8, ptr %.0710, i64 24
  %6 = load ptr, ptr %5, align 8, !tbaa !11
  %7 = getelementptr inbounds i8, ptr %6, i64 4
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %.not = icmp eq i32 %8, %1
  br i1 %.not, label %.preheader.preheader, label %.lr.ph, !llvm.loop !12

.preheader.preheader:                             ; preds = %.lr.ph, %2
  %.07.pn.ph = phi ptr [ %0, %2 ], [ %6, %.lr.ph ]
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %.07.pn = phi ptr [ %.1, %.preheader ], [ %.07.pn.ph, %.preheader.preheader ]
  %.0 = phi i32 [ %9, %.preheader ], [ 0, %.preheader.preheader ]
  %.1.in = getelementptr inbounds i8, ptr %.07.pn, i64 24
  %.1 = load ptr, ptr %.1.in, align 8, !tbaa !11
  %.not8 = icmp eq ptr %.1, null
  %9 = add nuw nsw i32 %.0, 1
  br i1 %.not8, label %10, label %.preheader, !llvm.loop !14

10:                                               ; preds = %.preheader
  ret i32 %9
}

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" }

!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 = !{!"t_list", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 24}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


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