; LLVM IR from facebook/redex :: libresource (Visitor)

; 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.android::ResStringPool_span" = type { %"struct.android::ResStringPool_ref", i32, i32 }
%"struct.android::ResStringPool_ref" = type { i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4arsc13collect_spansEPN7android18ResStringPool_spanEPSt6vectorIS2_SaIS2_EE(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %9, %2
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = icmp ne i32 %7, -1
  br i1 %8, label %9, label %14

9:                                                ; preds = %5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7android18ResStringPool_spanESaIS2_EE12emplace_backIJRS2_EEES6_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %"struct.android::ResStringPool_span", ptr %12, i32 1
  store ptr %13, ptr %3, align 8, !tbaa !5
  br label %5, !llvm.loop !11

14:                                               ; preds = %5
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7android18ResStringPool_spanESaIS2_EE12emplace_backIJRS2_EEES6_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

attributes #0 = { mustprogress 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 = !{!"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 = 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: mustprogress uwtable
define dso_local void @_ZN4arsc13collect_spansEPN7android18ResStringPool_spanEPSt6vectorIS2_SaIS2_EE(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load i32, ptr %0, align 4, !tbaa !9
  %.not1 = icmp eq i32 %4, -1
  br i1 %.not1, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %5 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7android18ResStringPool_spanESaIS2_EE12emplace_backIJRS2_EEES6_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 12
  store ptr %7, ptr %3, align 8, !tbaa !5
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %.not = icmp eq i32 %8, -1
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7android18ResStringPool_spanESaIS2_EE12emplace_backIJRS2_EEES6_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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 = !{!"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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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