; LLVM IR from DarrenSweeney/3D-Physics-Engine :: Physics Engine/Imgui/imgui.ll (ZN5ImGui7SpacingEv)

; 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.ImVec2 = type { float, float }
%struct.ImGuiWindow = type { ptr, i32, i32, %struct.ImVec2, %struct.ImVec2, %struct.ImVec2, %struct.ImVec2, %struct.ImVec2, float, float, i8, i8, i8, i8, i8, i32, i8, i32, i32, i32, %struct.ImGuiDrawContext, %class.ImVector.11, %class.ImVector.12, %struct.ImGuiAabb, i32, float, %struct.ImGuiStorage, float, ptr, ptr, i32, i32, i32, i32, i32, i32 }
%struct.ImGuiDrawContext = type { %struct.ImVec2, %struct.ImVec2, %struct.ImVec2, float, float, float, i32, i32, %struct.ImGuiAabb, i8, %class.ImVector.1, %class.ImVector.9, %class.ImVector.10, %class.ImVector.10, i32, ptr, float, float, i32, i32, %struct.ImVec2, float, float, i8, i32, %class.ImVector.10 }
%class.ImVector.1 = type { i64, i64, ptr }
%class.ImVector.9 = type { i64, i64, ptr }
%class.ImVector.10 = type { i64, i64, ptr }
%class.ImVector.11 = type { i64, i64, ptr }
%class.ImVector.12 = type { i64, i64, ptr }
%struct.ImGuiAabb = type { %struct.ImVec2, %struct.ImVec2 }
%struct.ImGuiStorage = type { %class.ImVector.6 }
%class.ImVector.6 = type { i64, i64, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN6ImVec2C2Eff(ptr noundef nonnull align 4 dereferenceable(8), float noundef, float noundef) unnamed_addr #0 align 2

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

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef ptr @_ZL16GetCurrentWindowv() #2

; Function Attrs: mustprogress uwtable
declare hidden void @_ZL8ItemSize6ImVec2PS_(<2 x float>, ptr noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5ImGui7SpacingEv() #3 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  %3 = alloca %struct.ImVec2, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #4
  %4 = call noundef ptr @_ZL16GetCurrentWindowv()
  store ptr %4, ptr %1, align 8, !tbaa !5
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.ImGuiWindow, ptr %5, i32 0, i32 14
  %7 = load i8, ptr %6, align 4, !tbaa !9, !range !25, !noundef !26
  %8 = trunc i8 %7 to i1
  br i1 %8, label %9, label %10

9:                                                ; preds = %0
  store i32 1, ptr %2, align 4
  br label %12

10:                                               ; preds = %0
  call void @_ZN6ImVec2C2Eff(ptr noundef nonnull align 4 dereferenceable(8) %3, float noundef 0.000000e+00, float noundef 0.000000e+00)
  %11 = load <2 x float>, ptr %3, align 4
  call void @_ZL8ItemSize6ImVec2PS_(<2 x float> %11, ptr noundef null)
  store i32 0, ptr %2, align 4
  br label %12

12:                                               ; preds = %10, %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #4
  %13 = load i32, ptr %2, align 4
  switch i32 %13, label %15 [
    i32 0, label %14
    i32 1, label %14
  ]

14:                                               ; preds = %12, %12
  ret void

15:                                               ; preds = %12
  unreachable
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 #3 = { mustprogress uwtable "min-legal-vector-width"="64" "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 #4 = { 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, !14, i64 68}
!10 = !{!"_ZTS11ImGuiWindow", !6, i64 0, !11, i64 8, !11, i64 12, !12, i64 16, !12, i64 24, !12, i64 32, !12, i64 40, !12, i64 48, !13, i64 56, !13, i64 60, !14, i64 64, !14, i64 65, !14, i64 66, !14, i64 67, !14, i64 68, !11, i64 72, !14, i64 76, !11, i64 80, !11, i64 84, !11, i64 88, !15, i64 96, !21, i64 336, !22, i64 360, !16, i64 384, !11, i64 400, !13, i64 404, !23, i64 408, !13, i64 432, !6, i64 440, !6, i64 448, !11, i64 456, !11, i64 460, !11, i64 464, !11, i64 468, !11, i64 472, !11, i64 476}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTS6ImVec2", !13, i64 0, !13, i64 4}
!13 = !{!"float", !7, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{!"_ZTS16ImGuiDrawContext", !12, i64 0, !12, i64 8, !12, i64 16, !13, i64 24, !13, i64 28, !13, i64 32, !11, i64 36, !11, i64 40, !16, i64 44, !14, i64 60, !17, i64 64, !19, i64 88, !20, i64 112, !20, i64 136, !11, i64 160, !6, i64 168, !13, i64 176, !13, i64 180, !11, i64 184, !11, i64 188, !12, i64 192, !13, i64 200, !13, i64 204, !14, i64 208, !11, i64 212, !20, i64 216}
!16 = !{!"_ZTS9ImGuiAabb", !12, i64 0, !12, i64 8}
!17 = !{!"_ZTS8ImVectorIP11ImGuiWindowE", !18, i64 0, !18, i64 8, !6, i64 16}
!18 = !{!"long", !7, i64 0}
!19 = !{!"_ZTS8ImVectorIbE", !18, i64 0, !18, i64 8, !6, i64 16}
!20 = !{!"_ZTS8ImVectorIfE", !18, i64 0, !18, i64 8, !6, i64 16}
!21 = !{!"_ZTS8ImVectorIjE", !18, i64 0, !18, i64 8, !6, i64 16}
!22 = !{!"_ZTS8ImVectorI6ImVec4E", !18, i64 0, !18, i64 8, !6, i64 16}
!23 = !{!"_ZTS12ImGuiStorage", !24, i64 0}
!24 = !{!"_ZTS8ImVectorIN12ImGuiStorage4PairEE", !18, i64 0, !18, i64 8, !6, i64 16}
!25 = !{i8 0, i8 2}
!26 = !{}


; 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.ImVec2 = type { float, float }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN6ImVec2C2Eff(ptr noundef nonnull align 4 dereferenceable(8), float noundef, float noundef) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef ptr @_ZL16GetCurrentWindowv() local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare hidden void @_ZL8ItemSize6ImVec2PS_(<2 x float>, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5ImGui7SpacingEv() local_unnamed_addr #2 {
  %1 = alloca %struct.ImVec2, align 8
  %2 = tail call noundef ptr @_ZL16GetCurrentWindowv()
  %3 = getelementptr inbounds i8, ptr %2, i64 68
  %4 = load i8, ptr %3, align 4, !tbaa !5, !range !24, !noundef !25
  %5 = trunc nuw i8 %4 to i1
  br i1 %5, label %8, label %6

6:                                                ; preds = %0
  call void @_ZN6ImVec2C2Eff(ptr noundef nonnull align 4 dereferenceable(8) %1, float noundef 0.000000e+00, float noundef 0.000000e+00)
  %7 = load <2 x float>, ptr %1, align 8
  call void @_ZL8ItemSize6ImVec2PS_(<2 x float> %7, ptr noundef null)
  br label %8

8:                                                ; preds = %0, %6
  ret void
}

attributes #0 = { 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 #1 = { inlinehint 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 = { mustprogress uwtable "min-legal-vector-width"="64" "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, !13, i64 68}
!6 = !{!"_ZTS11ImGuiWindow", !7, i64 0, !10, i64 8, !10, i64 12, !11, i64 16, !11, i64 24, !11, i64 32, !11, i64 40, !11, i64 48, !12, i64 56, !12, i64 60, !13, i64 64, !13, i64 65, !13, i64 66, !13, i64 67, !13, i64 68, !10, i64 72, !13, i64 76, !10, i64 80, !10, i64 84, !10, i64 88, !14, i64 96, !20, i64 336, !21, i64 360, !15, i64 384, !10, i64 400, !12, i64 404, !22, i64 408, !12, i64 432, !7, i64 440, !7, i64 448, !10, i64 456, !10, i64 460, !10, i64 464, !10, i64 468, !10, i64 472, !10, i64 476}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTS6ImVec2", !12, i64 0, !12, i64 4}
!12 = !{!"float", !8, i64 0}
!13 = !{!"bool", !8, i64 0}
!14 = !{!"_ZTS16ImGuiDrawContext", !11, i64 0, !11, i64 8, !11, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !10, i64 36, !10, i64 40, !15, i64 44, !13, i64 60, !16, i64 64, !18, i64 88, !19, i64 112, !19, i64 136, !10, i64 160, !7, i64 168, !12, i64 176, !12, i64 180, !10, i64 184, !10, i64 188, !11, i64 192, !12, i64 200, !12, i64 204, !13, i64 208, !10, i64 212, !19, i64 216}
!15 = !{!"_ZTS9ImGuiAabb", !11, i64 0, !11, i64 8}
!16 = !{!"_ZTS8ImVectorIP11ImGuiWindowE", !17, i64 0, !17, i64 8, !7, i64 16}
!17 = !{!"long", !8, i64 0}
!18 = !{!"_ZTS8ImVectorIbE", !17, i64 0, !17, i64 8, !7, i64 16}
!19 = !{!"_ZTS8ImVectorIfE", !17, i64 0, !17, i64 8, !7, i64 16}
!20 = !{!"_ZTS8ImVectorIjE", !17, i64 0, !17, i64 8, !7, i64 16}
!21 = !{!"_ZTS8ImVectorI6ImVec4E", !17, i64 0, !17, i64 8, !7, i64 16}
!22 = !{!"_ZTS12ImGuiStorage", !23, i64 0}
!23 = !{!"_ZTS8ImVectorIN12ImGuiStorage4PairEE", !17, i64 0, !17, i64 8, !7, i64 16}
!24 = !{i8 0, i8 2}
!25 = !{}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass