; LLVM IR from ohler55/agoo :: ext/agoo (graphql)

; 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"

%struct._slot = type { ptr, ptr, i64 }

@buckets = external hidden global [64 x ptr], 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
define dso_local void @gql_type_iterate(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  store ptr @buckets, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 64, ptr %7, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %28, %2
  %9 = load i32, ptr %7, align 4, !tbaa !9
  %10 = icmp slt i32 0, %9
  br i1 %10, label %11, label %33

11:                                               ; preds = %8
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  store ptr %13, ptr %6, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %23, %11
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = icmp ne ptr null, %15
  br i1 %16, label %17, label %27

17:                                               ; preds = %14
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct._slot, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  call void %18(ptr noundef %21, ptr noundef %22)
  br label %23

23:                                               ; preds = %17
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct._slot, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  store ptr %26, ptr %6, align 8, !tbaa !5
  br label %14, !llvm.loop !15

27:                                               ; preds = %14
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = add nsw i32 %29, -1
  store i32 %30, ptr %7, align 4, !tbaa !9
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds ptr, ptr %31, i32 1
  store ptr %32, ptr %5, align 8, !tbaa !5
  br label %8, !llvm.loop !17

33:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

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 }

!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 = !{!12, !6, i64 8}
!12 = !{!"_slot", !6, i64 0, !6, i64 8, !13, i64 16}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = distinct !{!17, !16}


; 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"

@buckets = external hidden local_unnamed_addr global [64 x ptr], align 16

; Function Attrs: nounwind uwtable
define dso_local void @gql_type_iterate(ptr nocapture noundef readonly %0, ptr noundef %1) local_unnamed_addr #0 {
  br label %.preheader

.preheader:                                       ; preds = %2, %._crit_edge
  %.014 = phi i32 [ 64, %2 ], [ %5, %._crit_edge ]
  %.0913 = phi ptr [ @buckets, %2 ], [ %6, %._crit_edge ]
  %.0810 = load ptr, ptr %.0913, align 8, !tbaa !5
  %.not11 = icmp eq ptr %.0810, null
  br i1 %.not11, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.0812 = phi ptr [ %.08, %.lr.ph ], [ %.0810, %.preheader ]
  %3 = getelementptr inbounds i8, ptr %.0812, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !9
  tail call void %0(ptr noundef %4, ptr noundef %1) #1
  %.08 = load ptr, ptr %.0812, align 8, !tbaa !5
  %.not = icmp eq ptr %.08, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %5 = add nsw i32 %.014, -1
  %6 = getelementptr inbounds i8, ptr %.0913, i64 8
  %7 = icmp ugt i32 %.014, 1
  br i1 %7, label %.preheader, label %8, !llvm.loop !14

8:                                                ; preds = %._crit_edge
  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" }
attributes #1 = { 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, !6, i64 8}
!10 = !{!"_slot", !6, i64 0, !6, i64 8, !11, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


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