; LLVM IR from xhub/reshop :: gui/external/imgui/imgui.ll (ZN5ImGui19GetContentRegionMaxEv)

; 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 }

; 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: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #1

; Function Attrs: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZN5ImGui21GetContentRegionAvailEv() #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local <2 x float> @_ZN5ImGui12GetWindowPosEv() #3

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZN5ImGui18GetCursorScreenPosEv() #2

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZN5ImGui19GetContentRegionMaxEv() #2 {
  %1 = alloca %struct.ImVec2, align 4
  %2 = alloca %struct.ImVec2, align 4
  %3 = alloca %struct.ImVec2, align 4
  %4 = alloca %struct.ImVec2, align 4
  %5 = alloca %struct.ImVec2, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %6 = call <2 x float> @_ZN5ImGui21GetContentRegionAvailEv()
  store <2 x float> %6, ptr %3, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %7 = call <2 x float> @_ZN5ImGui18GetCursorScreenPosEv()
  store <2 x float> %7, ptr %4, align 4
  %8 = call <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %4)
  store <2 x float> %8, ptr %2, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %9 = call <2 x float> @_ZN5ImGui12GetWindowPosEv()
  store <2 x float> %9, ptr %5, align 4
  %10 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(8) %5)
  store <2 x float> %10, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %11 = load <2 x float>, ptr %1, align 4
  ret <2 x float> %11
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 #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" }
attributes #3 = { mustprogress nounwind 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)"}


; 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 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: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZN5ImGui21GetContentRegionAvailEv() local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local <2 x float> @_ZN5ImGui12GetWindowPosEv() local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZN5ImGui18GetCursorScreenPosEv() local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZN5ImGui19GetContentRegionMaxEv() local_unnamed_addr #2 {
  %1 = alloca %struct.ImVec2, align 8
  %2 = alloca %struct.ImVec2, align 8
  %3 = alloca %struct.ImVec2, align 8
  %4 = alloca %struct.ImVec2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %5 = tail call <2 x float> @_ZN5ImGui21GetContentRegionAvailEv()
  store <2 x float> %5, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %6 = tail call <2 x float> @_ZN5ImGui18GetCursorScreenPosEv()
  store <2 x float> %6, ptr %3, align 8
  %7 = call <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(8) %3)
  store <2 x float> %7, ptr %1, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %8 = call <2 x float> @_ZN5ImGui12GetWindowPosEv()
  store <2 x float> %8, ptr %4, align 8
  %9 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %1, ptr noundef nonnull align 4 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  ret <2 x float> %9
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 #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" }
attributes #3 = { mustprogress nounwind 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)"}


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