; LLVM IR from theolundqvist/parallax-voxel-ray-marcher :: src/external/Dear ImGui/imgui.ll (ZN12ImGuiStorage14BuildSortByKeyEv)

; 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.ImGuiStorage = type { %struct.ImVector.0 }
%struct.ImVector.0 = type { i32, i32, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12ImGuiStorage14BuildSortByKeyEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %struct.ImGuiStorage, ptr %3, i32 0, i32 0
  %5 = getelementptr inbounds %struct.ImVector.0, ptr %4, i32 0, i32 0
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = icmp sgt i32 %6, 1
  br i1 %7, label %8, label %16

8:                                                ; preds = %1
  %9 = getelementptr inbounds %struct.ImGuiStorage, ptr %3, i32 0, i32 0
  %10 = getelementptr inbounds %struct.ImVector.0, ptr %9, i32 0, i32 2
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %12 = getelementptr inbounds %struct.ImGuiStorage, ptr %3, i32 0, i32 0
  %13 = getelementptr inbounds %struct.ImVector.0, ptr %12, i32 0, i32 0
  %14 = load i32, ptr %13, align 8, !tbaa !9
  %15 = sext i32 %14 to i64
  call void @qsort(ptr noundef %11, i64 noundef %15, i64 noundef 16, ptr noundef @_ZZN12ImGuiStorage14BuildSortByKeyEvEN10StaticFunc15PairCompareByIDEPKvS2_)
  br label %16

16:                                               ; preds = %8, %1
  ret void
}

declare void @qsort(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i32 @_ZZN12ImGuiStorage14BuildSortByKeyEvEN10StaticFunc15PairCompareByIDEPKvS2_(ptr noundef, ptr noundef) #2 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" }
attributes #1 = { "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 = { 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" }

!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, !12, i64 0}
!10 = !{!"_ZTS12ImGuiStorage", !11, i64 0}
!11 = !{!"_ZTS8ImVectorIN12ImGuiStorage16ImGuiStoragePairEE", !12, i64 0, !12, i64 4, !6, i64 8}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !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"

; Function Attrs: mustprogress nofree uwtable
define dso_local void @_ZN12ImGuiStorage14BuildSortByKeyEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0) local_unnamed_addr #0 align 2 {
  %2 = load i32, ptr %0, align 8, !tbaa !5
  %3 = icmp sgt i32 %2, 1
  br i1 %3, label %4, label %8

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !12
  %7 = zext nneg i32 %2 to i64
  tail call void @qsort(ptr noundef %6, i64 noundef %7, i64 noundef 16, ptr noundef nonnull @_ZZN12ImGuiStorage14BuildSortByKeyEvEN10StaticFunc15PairCompareByIDEPKvS2_)
  br label %8

8:                                                ; preds = %4, %1
  ret void
}

; Function Attrs: nofree
declare void @qsort(ptr noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i32 @_ZZN12ImGuiStorage14BuildSortByKeyEvEN10StaticFunc15PairCompareByIDEPKvS2_(ptr noundef, ptr noundef) #2 align 2

attributes #0 = { mustprogress nofree 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 = { nofree "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 = { 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" }

!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, !8, i64 0}
!6 = !{!"_ZTS12ImGuiStorage", !7, i64 0}
!7 = !{!"_ZTS8ImVectorIN12ImGuiStorage16ImGuiStoragePairEE", !8, i64 0, !8, i64 4, !11, i64 8}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!6, !11, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass