; LLVM IR from AlgoGenesis/C :: Backtracking Algorithms/Chess-In-Terminal/src (main)

; 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"

@__const.add_diag_edges.dx = external hidden unnamed_addr constant [4 x i32], align 16
@__const.add_diag_edges.dy = external hidden unnamed_addr constant [4 x i32], align 16

; 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
declare dso_local void @add_directional_edges(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @add_diag_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca [4 x i32], align 16
  %12 = alloca [4 x i32], align 16
  %13 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %11) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %11, ptr align 16 @__const.add_diag_edges.dx, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %12, ptr align 16 @__const.add_diag_edges.dy, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %33, %5
  %15 = load i32, ptr %13, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = icmp ult i64 %16, 4
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %36

19:                                               ; preds = %14
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load i32, ptr %8, align 4, !tbaa !9
  %23 = load i32, ptr %9, align 4, !tbaa !9
  %24 = load i32, ptr %13, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [4 x i32], ptr %11, i64 0, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !9
  %28 = load i32, ptr %13, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [4 x i32], ptr %12, i64 0, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !9
  %32 = load i32, ptr %10, align 4, !tbaa !9
  call void @add_directional_edges(ptr noundef %20, ptr noundef %21, i32 noundef %22, i32 noundef %23, i32 noundef %27, i32 noundef %31, i32 noundef %32)
  br label %33

33:                                               ; preds = %19
  %34 = load i32, ptr %13, align 4, !tbaa !9
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %13, align 4, !tbaa !9
  br label %14, !llvm.loop !11

36:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #3
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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 = 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"

@__const.add_diag_edges.dx = external hidden unnamed_addr constant [4 x i32], align 16
@__const.add_diag_edges.dy = external hidden unnamed_addr constant [4 x i32], align 16

; Function Attrs: nounwind uwtable
declare dso_local void @add_directional_edges(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @add_diag_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = load i32, ptr @__const.add_diag_edges.dx, align 16, !tbaa !5
  %7 = load i32, ptr @__const.add_diag_edges.dy, align 16, !tbaa !5
  tail call void @add_directional_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %6, i32 noundef %7, i32 noundef %4)
  %8 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dx, i64 4), align 4, !tbaa !5
  %9 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dy, i64 4), align 4, !tbaa !5
  tail call void @add_directional_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %8, i32 noundef %9, i32 noundef %4)
  %10 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dx, i64 8), align 8, !tbaa !5
  %11 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dy, i64 8), align 8, !tbaa !5
  tail call void @add_directional_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %10, i32 noundef %11, i32 noundef %4)
  %12 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dx, i64 12), align 4, !tbaa !5
  %13 = load i32, ptr getelementptr inbounds (i8, ptr @__const.add_diag_edges.dy, i64 12), align 4, !tbaa !5
  tail call void @add_directional_edges(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %12, i32 noundef %13, i32 noundef %4)
  ret void
}

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" }

!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"}


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