; LLVM IR from ros2/rcutils :: src (string_map)

; 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.rcutils_string_map_s = type { ptr }
%struct.rcutils_string_map_impl_s = type { ptr, i64, i64, %struct.rcutils_allocator_s }
%struct.rcutils_allocator_s = type { ptr, ptr, ptr, ptr, ptr }
%struct.key_value_pair = type { ptr, 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: nounwind uwtable
declare hidden zeroext i1 @__get_index_of_key_if_exists(ptr noundef, ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @rcutils_string_map_getn(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = icmp eq ptr null, %10
  br i1 %11, label %20, label %12

12:                                               ; preds = %3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.rcutils_string_map_s, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  %16 = icmp eq ptr null, %15
  br i1 %16, label %20, label %17

17:                                               ; preds = %12
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = icmp eq ptr null, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %17, %12, %3
  store ptr null, ptr %4, align 8
  br label %40

21:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.rcutils_string_map_s, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load i64, ptr %7, align 8, !tbaa !9
  %27 = call zeroext i1 @__get_index_of_key_if_exists(ptr noundef %24, ptr noundef %25, i64 noundef %26, ptr noundef %8)
  br i1 %27, label %28, label %38

28:                                               ; preds = %21
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.rcutils_string_map_s, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !11
  %32 = getelementptr inbounds %struct.rcutils_string_map_impl_s, ptr %31, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8, !tbaa !13
  %34 = load i64, ptr %8, align 8, !tbaa !9
  %35 = getelementptr inbounds %struct.key_value_pair, ptr %33, i64 %34
  %36 = getelementptr inbounds %struct.key_value_pair, ptr %35, i32 0, i32 1
  %37 = load ptr, ptr %36, align 8, !tbaa !16
  store ptr %37, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %39

38:                                               ; preds = %21
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %39

39:                                               ; preds = %38, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  br label %40

40:                                               ; preds = %39, %20
  %41 = load ptr, ptr %4, align 8
  ret ptr %41
}

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 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"rcutils_string_map_s", !6, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"rcutils_string_map_impl_s", !6, i64 0, !10, i64 8, !10, i64 16, !15, i64 24}
!15 = !{!"rcutils_allocator_s", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!16 = !{!17, !6, i64 8}
!17 = !{!"key_value_pair", !6, i64 0, !6, i64 8}


; 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.key_value_pair = type { ptr, ptr }

; 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 hidden zeroext i1 @__get_index_of_key_if_exists(ptr noundef, ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local ptr @rcutils_string_map_getn(ptr noundef readonly %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = alloca i64, align 8
  %5 = icmp eq ptr %0, null
  br i1 %5, label %19, label %6

6:                                                ; preds = %3
  %7 = load ptr, ptr %0, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  %9 = icmp eq ptr %1, null
  %or.cond = or i1 %9, %8
  br i1 %or.cond, label %19, label %10

10:                                               ; preds = %6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #2
  %11 = call zeroext i1 @__get_index_of_key_if_exists(ptr noundef nonnull %7, ptr noundef nonnull %1, i64 noundef %2, ptr noundef nonnull %4)
  br i1 %11, label %12, label %18

12:                                               ; preds = %10
  %13 = load ptr, ptr %0, align 8, !tbaa !5
  %14 = load ptr, ptr %13, align 8, !tbaa !10
  %15 = load i64, ptr %4, align 8, !tbaa !14
  %16 = getelementptr inbounds %struct.key_value_pair, ptr %14, i64 %15, i32 1
  %17 = load ptr, ptr %16, align 8, !tbaa !15
  br label %18

18:                                               ; preds = %10, %12
  %.0 = phi ptr [ %17, %12 ], [ null, %10 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #2
  br label %19

19:                                               ; preds = %3, %6, %18
  %.1 = phi ptr [ %.0, %18 ], [ null, %6 ], [ null, %3 ]
  ret ptr %.1
}

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 = { 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, !7, i64 0}
!6 = !{!"rcutils_string_map_s", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !7, i64 0}
!11 = !{!"rcutils_string_map_impl_s", !7, i64 0, !12, i64 8, !12, i64 16, !13, i64 24}
!12 = !{!"long", !8, i64 0}
!13 = !{!"rcutils_allocator_s", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!14 = !{!12, !12, i64 0}
!15 = !{!16, !7, i64 8}
!16 = !{!"key_value_pair", !7, i64 0, !7, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass