; LLVM IR from pmwkaa/monotone :: monotone/engine/engine (op)

; 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: nounwind uwtable
declare dso_local void @engine_drop(ptr noundef, i64 noundef, i1 noundef zeroext, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @engine_drop_range(ptr noundef %0, i64 noundef %1, i64 noundef %2, i32 noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !9
  store i32 %3, ptr %8, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  br label %10

10:                                               ; preds = %18, %4
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load i64, ptr %7, align 8, !tbaa !9
  %13 = call zeroext i1 @engine_foreach(ptr noundef %11, ptr noundef %6, ptr noundef %9, i64 noundef %12)
  br i1 %13, label %14, label %20

14:                                               ; preds = %10
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load i64, ptr %6, align 8, !tbaa !9
  %17 = load i32, ptr %8, align 4, !tbaa !11
  call void @engine_drop(ptr noundef %15, i64 noundef %16, i1 noundef zeroext true, i32 noundef %17)
  br label %18

18:                                               ; preds = %14
  %19 = load i64, ptr %9, align 8, !tbaa !9
  store i64 %19, ptr %6, align 8, !tbaa !9
  br label %10, !llvm.loop !13

20:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  ret void
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @engine_foreach(ptr noundef, ptr noundef, ptr noundef, i64 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 = { inlinehint 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 #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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: nounwind uwtable
declare dso_local void @engine_drop(ptr noundef, i64 noundef, i1 noundef zeroext, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @engine_drop_range(ptr noundef %0, i64 noundef %1, i64 noundef %2, i32 noundef %3) local_unnamed_addr #1 {
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store i64 %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %7 = call zeroext i1 @engine_foreach(ptr noundef %0, ptr noundef nonnull %5, ptr noundef nonnull %6, i64 noundef %2)
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4, %.lr.ph
  %8 = load i64, ptr %5, align 8, !tbaa !5
  call void @engine_drop(ptr noundef %0, i64 noundef %8, i1 noundef zeroext true, i32 noundef %3)
  %9 = load i64, ptr %6, align 8, !tbaa !5
  store i64 %9, ptr %5, align 8, !tbaa !5
  %10 = call zeroext i1 @engine_foreach(ptr noundef %0, ptr noundef nonnull %5, ptr noundef nonnull %6, i64 noundef %2)
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  ret void
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @engine_foreach(ptr noundef, ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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 = { inlinehint 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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass