; LLVM IR from tuplex/tuplex :: tuplex/utils/src (int_hashmap)

; 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._int64_hashmap_map = type { i32, i32, ptr }
%struct._int_hashmap_element = type { i64, i32, ptr }

; 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 zeroext i1 @int64_hashmap_get_next_key(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %11, ptr %8, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %47, %3
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._int64_hashmap_map, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !11
  %18 = icmp slt i32 %14, %17
  br i1 %18, label %19, label %48

19:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i32, ptr %20, align 4, !tbaa !9
  store i32 %21, ptr %9, align 4, !tbaa !9
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %22, align 4, !tbaa !9
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct._int64_hashmap_map, ptr %25, i32 0, i32 2
  %27 = load ptr, ptr %26, align 8, !tbaa !13
  %28 = load i32, ptr %9, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds %struct._int_hashmap_element, ptr %27, i64 %29
  %31 = getelementptr inbounds %struct._int_hashmap_element, ptr %30, i32 0, i32 1
  %32 = load i32, ptr %31, align 8, !tbaa !14
  %33 = icmp ne i32 %32, 0
  br i1 %33, label %34, label %44

34:                                               ; preds = %19
  %35 = load ptr, ptr %8, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct._int64_hashmap_map, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !13
  %38 = load i32, ptr %9, align 4, !tbaa !9
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds %struct._int_hashmap_element, ptr %37, i64 %39
  %41 = getelementptr inbounds %struct._int_hashmap_element, ptr %40, i32 0, i32 0
  %42 = load i64, ptr %41, align 8, !tbaa !17
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  store i64 %42, ptr %43, align 8, !tbaa !18
  store i1 true, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %45

44:                                               ; preds = %19
  store i32 0, ptr %10, align 4
  br label %45

45:                                               ; preds = %44, %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  %46 = load i32, ptr %10, align 4
  switch i32 %46, label %49 [
    i32 0, label %47
  ]

47:                                               ; preds = %45
  br label %12, !llvm.loop !19

48:                                               ; preds = %12
  store i1 false, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %49

49:                                               ; preds = %48, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %50 = load i1, ptr %4, align 1
  ret i1 %50
}

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}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS18_int64_hashmap_map", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !10, i64 8}
!15 = !{!"_ZTS20_int_hashmap_element", !16, i64 0, !10, i64 8, !6, i64 16}
!16 = !{!"long", !7, i64 0}
!17 = !{!15, !16, i64 0}
!18 = !{!16, !16, i64 0}
!19 = distinct !{!19, !20}
!20 = !{!"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"

%struct._int_hashmap_element = type { i64, i32, ptr }

; Function Attrs: mustprogress nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @int64_hashmap_get_next_key(ptr nocapture noundef readonly %0, ptr nocapture noundef %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %.pre = load i32, ptr %1, align 4, !tbaa !5
  br label %.critedge

.critedge:                                        ; preds = %8, %3
  %5 = phi i32 [ %9, %8 ], [ %.pre, %3 ]
  %6 = load i32, ptr %0, align 8, !tbaa !9
  %7 = icmp slt i32 %5, %6
  br i1 %7, label %8, label %.loopexit

8:                                                ; preds = %.critedge
  %9 = add nsw i32 %5, 1
  store i32 %9, ptr %1, align 4, !tbaa !5
  %10 = load ptr, ptr %4, align 8, !tbaa !12
  %11 = sext i32 %5 to i64
  %12 = getelementptr inbounds %struct._int_hashmap_element, ptr %10, i64 %11
  %13 = getelementptr inbounds i8, ptr %12, i64 8
  %14 = load i32, ptr %13, align 8, !tbaa !13
  %.not = icmp eq i32 %14, 0
  br i1 %.not, label %.critedge, label %15

15:                                               ; preds = %8
  %16 = load i64, ptr %12, align 8, !tbaa !16
  store i64 %16, ptr %2, align 8, !tbaa !17
  br label %.loopexit, !llvm.loop !18

.loopexit:                                        ; preds = %.critedge, %15
  ret i1 %7
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: 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" }

!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++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS18_int64_hashmap_map", !6, i64 0, !6, i64 4, !11, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!14, !6, i64 8}
!14 = !{!"_ZTS20_int_hashmap_element", !15, i64 0, !6, i64 8, !11, i64 16}
!15 = !{!"long", !7, i64 0}
!16 = !{!14, !15, i64 0}
!17 = !{!15, !15, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass