; LLVM IR from bondhugula/pluto :: examples/game-of-life (life)

; 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"

@stderr = external global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@life = external dso_local global [2 x [16000 x [16000 x i32]]], align 16
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1

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

5:                                                ; preds = %37, %1
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = sext i32 %6 to i64
  %8 = icmp slt i64 %7, 16000
  br i1 %8, label %9, label %40

9:                                                ; preds = %5
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %31, %9
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %12, 16000
  br i1 %13, label %14, label %34

14:                                               ; preds = %10
  %15 = load ptr, ptr @stderr, align 8, !tbaa !9
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = srem i32 %16, 2
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [2 x [16000 x [16000 x i32]]], ptr @life, i64 0, i64 %18
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [16000 x [16000 x i32]], ptr %19, i64 0, i64 %21
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [16000 x i32], ptr %22, i64 0, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = icmp ne i32 %26, 0
  %28 = zext i1 %27 to i64
  %29 = select i1 %27, i32 49, i32 46
  %30 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %15, ptr noundef @.str.1, i32 noundef %29) #3
  br label %31

31:                                               ; preds = %14
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %4, align 4, !tbaa !5
  br label %10, !llvm.loop !11

34:                                               ; preds = %10
  %35 = load ptr, ptr @stderr, align 8, !tbaa !9
  %36 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %35, ptr noundef @.str.2) #3
  br label %37

37:                                               ; preds = %34
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %3, align 4, !tbaa !5
  br label %5, !llvm.loop !13

40:                                               ; preds = %5
  %41 = load ptr, ptr @stderr, align 8, !tbaa !9
  %42 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %41, ptr noundef @.str.2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #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 = { nounwind "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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@life = external dso_local local_unnamed_addr global [2 x [16000 x [16000 x i32]]], align 16
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @print_points(i32 noundef %0) local_unnamed_addr #0 {
  %2 = srem i32 %0, 2
  %3 = sext i32 %2 to i64
  br label %.preheader

.preheader:                                       ; preds = %1, %10
  %indvars.iv13 = phi i64 [ 0, %1 ], [ %indvars.iv.next14, %10 ]
  br label %4

4:                                                ; preds = %.preheader, %4
  %indvars.iv = phi i64 [ 0, %.preheader ], [ %indvars.iv.next, %4 ]
  %5 = load ptr, ptr @stderr, align 8, !tbaa !5
  %6 = getelementptr inbounds [2 x [16000 x [16000 x i32]]], ptr @life, i64 0, i64 %3, i64 %indvars.iv13, i64 %indvars.iv
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %.not = icmp eq i32 %7, 0
  %8 = select i1 %.not, i32 46, i32 49
  %9 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %5, ptr noundef nonnull @.str.1, i32 noundef %8) #2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, 16000
  br i1 %exitcond.not, label %10, label %4, !llvm.loop !11

10:                                               ; preds = %4
  %11 = load ptr, ptr @stderr, align 8, !tbaa !5
  %12 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef nonnull @.str.2) #2
  %indvars.iv.next14 = add nuw nsw i64 %indvars.iv13, 1
  %exitcond16.not = icmp eq i64 %indvars.iv.next14, 16000
  br i1 %exitcond16.not, label %13, label %.preheader, !llvm.loop !13

13:                                               ; preds = %10
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef nonnull @.str.2) #2
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { nofree 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 = { nofree nounwind "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 = { cold 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"}
!13 = distinct !{!13, !12}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass