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

; 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: nounwind uwtable
define dso_local zeroext i1 @rcutils_cli_option_exist(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, 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 ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %30, %3
  %11 = load i64, ptr %8, align 8, !tbaa !9
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = ptrtoint ptr %12 to i64
  %15 = ptrtoint ptr %13 to i64
  %16 = sub i64 %14, %15
  %17 = sdiv exact i64 %16, 8
  %18 = icmp ult i64 %11, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %10
  store i32 2, ptr %9, align 4
  br label %33

20:                                               ; preds = %10
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = load i64, ptr %8, align 8, !tbaa !9
  %23 = getelementptr inbounds ptr, ptr %21, i64 %22
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = call i32 @strcmp(ptr noundef %24, ptr noundef %25) #4
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %29

28:                                               ; preds = %20
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %33

29:                                               ; preds = %20
  br label %30

30:                                               ; preds = %29
  %31 = load i64, ptr %8, align 8, !tbaa !9
  %32 = add i64 %31, 1
  store i64 %32, ptr %8, align 8, !tbaa !9
  br label %10, !llvm.loop !11

33:                                               ; preds = %28, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %34 = load i32, ptr %9, align 4
  switch i32 %34, label %38 [
    i32 2, label %35
    i32 1, label %36
  ]

35:                                               ; preds = %33
  store i1 false, ptr %4, align 1
  br label %36

36:                                               ; preds = %35, %33
  %37 = load i1, ptr %4, align 1
  ret i1 %37

38:                                               ; preds = %33
  unreachable
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind willreturn memory(read) "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 }
attributes #4 = { nounwind willreturn memory(read) }

!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 = distinct !{!11, !12}
!12 = !{!"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: nofree nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local zeroext i1 @rcutils_cli_option_exist(ptr noundef %0, ptr noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = ptrtoint ptr %1 to i64
  %5 = ptrtoint ptr %0 to i64
  %6 = sub i64 %4, %5
  %7 = ashr exact i64 %6, 3
  %.not10.not = icmp eq ptr %1, %0
  br i1 %.not10.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %umax = tail call i64 @llvm.umax.i64(i64 %7, i64 1)
  %8 = load ptr, ptr %0, align 8, !tbaa !5
  %9 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %8, ptr noundef nonnull dereferenceable(1) %2) #3
  %10 = icmp eq i32 %9, 0
  br i1 %10, label %._crit_edge, label %.lr.ph16

.lr.ph16:                                         ; preds = %.lr.ph.preheader, %.lr.ph
  %.081115 = phi i64 [ %11, %.lr.ph ], [ 0, %.lr.ph.preheader ]
  %11 = add nuw i64 %.081115, 1
  %exitcond.not = icmp eq i64 %11, %umax
  br i1 %exitcond.not, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph16
  %12 = getelementptr inbounds ptr, ptr %0, i64 %11
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %13, ptr noundef nonnull dereferenceable(1) %2) #3
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %._crit_edge.loopexit, label %.lr.ph16, !llvm.loop !9

._crit_edge.loopexit:                             ; preds = %.lr.ph16, %.lr.ph
  %.not.le = icmp ult i64 %11, %7
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.lr.ph.preheader, %3
  %.not.lcssa = phi i1 [ false, %3 ], [ true, %.lr.ph.preheader ], [ %.not.le, %._crit_edge.loopexit ]
  ret i1 %.not.lcssa
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umax.i64(i64, i64) #2

attributes #0 = { nofree nounwind memory(read, 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" }
attributes #1 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { nounwind willreturn memory(read) }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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