; LLVM IR from mbrenman/TetrisPlayground :: agents/HeuristicAgent.ll (ZN14HeuristicAgent12holesInBoardEP6Tetris)

; 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: 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: mustprogress uwtable
define dso_local noundef i32 @_ZN14HeuristicAgent12holesInBoardEP6Tetris(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [10 x [20 x i32]], align 16
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 800, ptr %5) #4
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds [10 x [20 x i32]], ptr %5, i64 0, i64 0
  call void @_ZN6Tetris9copyBoardEPA20_i(ptr noundef nonnull align 8 dereferenceable(824) %8, ptr noundef %9)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %17, %2
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = icmp slt i32 %11, 10
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %20

14:                                               ; preds = %10
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = getelementptr inbounds [10 x [20 x i32]], ptr %5, i64 0, i64 0
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %7, i32 noundef %15, i32 noundef 0, ptr noundef %16)
  br label %17

17:                                               ; preds = %14
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %6, align 4, !tbaa !9
  br label %10, !llvm.loop !11

20:                                               ; preds = %13
  %21 = getelementptr inbounds [10 x [20 x i32]], ptr %5, i64 0, i64 0
  %22 = call noundef i32 @_ZN14HeuristicAgent11countBlanksEPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef %21)
  call void @llvm.lifetime.end.p0(i64 800, ptr %5) #4
  ret i32 %22
}

declare void @_ZN6Tetris9copyBoardEPA20_i(ptr noundef nonnull align 8 dereferenceable(824), ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56), i32 noundef, i32 noundef, ptr noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN14HeuristicAgent11countBlanksEPA20_i(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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 = { 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 #4 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN14HeuristicAgent12holesInBoardEP6Tetris(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull %1) local_unnamed_addr #1 align 2 {
  %3 = alloca [10 x [20 x i32]], align 16
  call void @llvm.lifetime.start.p0(i64 800, ptr nonnull %3) #4
  call void @_ZN6Tetris9copyBoardEPA20_i(ptr noundef nonnull align 8 dereferenceable(824) %1, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 0, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 1, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 2, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 3, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 4, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 5, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 6, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 7, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 8, i32 noundef 0, ptr noundef nonnull %3)
  call void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef 9, i32 noundef 0, ptr noundef nonnull %3)
  %4 = call noundef i32 @_ZN14HeuristicAgent11countBlanksEPA20_i(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull %3)
  call void @llvm.lifetime.end.p0(i64 800, ptr nonnull %3) #4
  ret i32 %4
}

declare void @_ZN6Tetris9copyBoardEPA20_i(ptr noundef nonnull align 8 dereferenceable(824), ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN14HeuristicAgent19fillReachableBlanksEiiPA20_i(ptr noundef nonnull align 8 dereferenceable(56), i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN14HeuristicAgent11countBlanksEPA20_i(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef) local_unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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 = { 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 #4 = { 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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass