; LLVM IR from mackorone/mms :: old/v1/src/algo/FloodFill/FloodFill.ll (ZN9FloodFill3minEiiii)

; 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 nounwind uwtable
define dso_local noundef i32 @_ZN9FloodFill3minEiiii(ptr noundef nonnull align 8 dereferenceable(8457) %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 align 2 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store i32 %2, ptr %9, align 4, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !9
  store i32 %4, ptr %11, align 4, !tbaa !9
  %15 = load ptr, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  %16 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %16, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #2
  %17 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %17, ptr %13, align 4, !tbaa !9
  %18 = load i32, ptr %9, align 4, !tbaa !9
  %19 = load i32, ptr %8, align 4, !tbaa !9
  %20 = icmp sle i32 %18, %19
  br i1 %20, label %21, label %23

21:                                               ; preds = %5
  %22 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %22, ptr %12, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %21, %5
  %24 = load i32, ptr %11, align 4, !tbaa !9
  %25 = load i32, ptr %10, align 4, !tbaa !9
  %26 = icmp sle i32 %24, %25
  br i1 %26, label %27, label %29

27:                                               ; preds = %23
  %28 = load i32, ptr %11, align 4, !tbaa !9
  store i32 %28, ptr %13, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %27, %23
  %30 = load i32, ptr %12, align 4, !tbaa !9
  %31 = load i32, ptr %13, align 4, !tbaa !9
  %32 = icmp sle i32 %30, %31
  br i1 %32, label %33, label %35

33:                                               ; preds = %29
  %34 = load i32, ptr %12, align 4, !tbaa !9
  store i32 %34, ptr %6, align 4
  store i32 1, ptr %14, align 4
  br label %37

35:                                               ; preds = %29
  %36 = load i32, ptr %13, align 4, !tbaa !9
  store i32 %36, ptr %6, align 4
  store i32 1, ptr %14, align 4
  br label %37

37:                                               ; preds = %35, %33
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  %38 = load i32, ptr %6, align 4
  ret i32 %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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 nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef i32 @_ZN9FloodFill3minEiiii(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8457) %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 align 2 {
  %spec.select = tail call i32 @llvm.smin.i32(i32 %2, i32 %1)
  %.0 = tail call i32 @llvm.smin.i32(i32 %4, i32 %3)
  %.014 = tail call i32 @llvm.smin.i32(i32 %spec.select, i32 %.0)
  ret i32 %.014
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smin.i32(i32, i32) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass