; LLVM IR from yangfengzzz/DigitalVox4 :: editor/imgui_canvas.ll (ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImVec2)

; 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.ImGuiEx::CanvasView" = type { %struct.ImVec2, float, float }
%struct.ImVec2 = type { float, float }
%"struct.ImGuiEx::Canvas" = type <{ i8, [3 x i8], %struct.ImVec2, %struct.ImVec2, %struct.ImRect, [4 x i8], ptr, i32, i32, i32, %"struct.ImGuiEx::CanvasView", %struct.ImRect, %struct.ImVec2, i32, float, %struct.ImVec2, %struct.ImVec2, [5 x %struct.ImVec2], %struct.ImVec2, [4 x i8] }>
%struct.ImRect = type { %struct.ImVec2, %struct.ImVec2 }

; 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> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7ImGuiEx10CanvasViewC2ERK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8), float noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(8) %1) #3 align 2 {
  %3 = alloca %"struct.ImGuiEx::CanvasView", align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %struct.ImVec2, align 4
  %7 = alloca %struct.ImVec2, align 4
  %8 = alloca %struct.ImVec2, align 4
  %9 = alloca %struct.ImVec2, align 4
  %10 = alloca %struct.ImVec2, align 4
  %11 = alloca %struct.ImVec2, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %13 = getelementptr inbounds %"struct.ImGuiEx::Canvas", ptr %12, i32 0, i32 2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %14 = getelementptr inbounds %"struct.ImGuiEx::Canvas", ptr %12, i32 0, i32 3
  %15 = call <2 x float> @_ZmlRK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(8) %14, float noundef 5.000000e-01)
  store <2 x float> %15, ptr %8, align 4
  %16 = call <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %13, ptr noundef nonnull align 4 dereferenceable(8) %8)
  store <2 x float> %16, ptr %7, align 4
  %17 = call <2 x float> @_ZNK7ImGuiEx6Canvas7ToLocalERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %12, ptr noundef nonnull align 4 dereferenceable(8) %7)
  store <2 x float> %17, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %18, ptr noundef nonnull align 4 dereferenceable(8) %6)
  store <2 x float> %19, ptr %9, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %20 = call <2 x float> @_ZNK7ImGuiEx6Canvas10FromLocalVERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %12, ptr noundef nonnull align 4 dereferenceable(8) %9)
  store <2 x float> %20, ptr %10, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %21 = getelementptr inbounds %"struct.ImGuiEx::Canvas", ptr %12, i32 0, i32 10
  %22 = getelementptr inbounds %"struct.ImGuiEx::CanvasView", ptr %21, i32 0, i32 0
  %23 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %22, ptr noundef nonnull align 4 dereferenceable(8) %10)
  store <2 x float> %23, ptr %11, align 4
  %24 = getelementptr inbounds %"struct.ImGuiEx::Canvas", ptr %12, i32 0, i32 10
  %25 = getelementptr inbounds %"struct.ImGuiEx::CanvasView", ptr %24, i32 0, i32 1
  %26 = load float, ptr %25, align 4, !tbaa !9
  call void @_ZN7ImGuiEx10CanvasViewC2ERK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(8) %11, float noundef %26)
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %27 = load { <2 x float>, <2 x float> }, ptr %3, align 4
  ret { <2 x float>, <2 x float> } %27
}

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZNK7ImGuiEx6Canvas7ToLocalERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(8)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZmlRK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(8), float noundef) #1

; 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: mustprogress uwtable
declare dso_local <2 x float> @_ZNK7ImGuiEx6Canvas10FromLocalVERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(8)) #3 align 2

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 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, !13, i64 68}
!10 = !{!"_ZTSN7ImGuiEx6CanvasE", !11, i64 0, !12, i64 4, !12, i64 12, !14, i64 20, !6, i64 40, !15, i64 48, !15, i64 52, !15, i64 56, !16, i64 60, !14, i64 76, !12, i64 92, !15, i64 100, !13, i64 104, !12, i64 108, !12, i64 116, !7, i64 124, !12, i64 164}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"_ZTS6ImVec2", !13, i64 0, !13, i64 4}
!13 = !{!"float", !7, i64 0}
!14 = !{!"_ZTS6ImRect", !12, i64 0, !12, i64 8}
!15 = !{!"int", !7, i64 0}
!16 = !{!"_ZTSN7ImGuiEx10CanvasViewE", !12, i64 0, !13, i64 8, !13, i64 12}


; 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.ImGuiEx::CanvasView" = type { %struct.ImVec2, float, float }
%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> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7ImGuiEx10CanvasViewC2ERK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8), float noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(8) %1) local_unnamed_addr #3 align 2 {
  %3 = alloca %"struct.ImGuiEx::CanvasView", align 8
  %4 = alloca %struct.ImVec2, align 8
  %5 = alloca %struct.ImVec2, align 8
  %6 = alloca %struct.ImVec2, align 8
  %7 = alloca %struct.ImVec2, align 8
  %8 = alloca %struct.ImVec2, align 8
  %9 = alloca %struct.ImVec2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %10 = getelementptr inbounds i8, ptr %0, i64 4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %11 = getelementptr inbounds i8, ptr %0, i64 12
  %12 = tail call <2 x float> @_ZmlRK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(8) %11, float noundef 5.000000e-01)
  store <2 x float> %12, ptr %6, align 8
  %13 = call <2 x float> @_ZplRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %10, ptr noundef nonnull align 4 dereferenceable(8) %6)
  store <2 x float> %13, ptr %5, align 8
  %14 = call <2 x float> @_ZNK7ImGuiEx6Canvas7ToLocalERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(8) %5)
  store <2 x float> %14, ptr %4, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %15 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %1, ptr noundef nonnull align 4 dereferenceable(8) %4)
  store <2 x float> %15, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #4
  %16 = call <2 x float> @_ZNK7ImGuiEx6Canvas10FromLocalVERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(8) %7)
  store <2 x float> %16, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #4
  %17 = getelementptr inbounds i8, ptr %0, i64 60
  %18 = call <2 x float> @_ZmiRK6ImVec2S1_(ptr noundef nonnull align 4 dereferenceable(8) %17, ptr noundef nonnull align 4 dereferenceable(8) %8)
  store <2 x float> %18, ptr %9, align 8
  %19 = getelementptr inbounds i8, ptr %0, i64 68
  %20 = load float, ptr %19, align 4, !tbaa !5
  call void @_ZN7ImGuiEx10CanvasViewC2ERK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(8) %9, float noundef %20)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %.fca.0.load = load <2 x float>, ptr %3, align 8
  %.fca.0.insert = insertvalue { <2 x float>, <2 x float> } poison, <2 x float> %.fca.0.load, 0
  %.fca.1.gep = getelementptr inbounds i8, ptr %3, i64 8
  %.fca.1.load = load <2 x float>, ptr %.fca.1.gep, align 8
  %.fca.1.insert = insertvalue { <2 x float>, <2 x float> } %.fca.0.insert, <2 x float> %.fca.1.load, 1
  ret { <2 x float>, <2 x float> } %.fca.1.insert
}

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZNK7ImGuiEx6Canvas7ToLocalERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden <2 x float> @_ZmlRK6ImVec2f(ptr noundef nonnull align 4 dereferenceable(8), float noundef) local_unnamed_addr #1

; 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: mustprogress uwtable
declare dso_local <2 x float> @_ZNK7ImGuiEx6Canvas10FromLocalVERK6ImVec2(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #3 align 2

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 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, !11, i64 68}
!6 = !{!"_ZTSN7ImGuiEx6CanvasE", !7, i64 0, !10, i64 4, !10, i64 12, !12, i64 20, !13, i64 40, !14, i64 48, !14, i64 52, !14, i64 56, !15, i64 60, !12, i64 76, !10, i64 92, !14, i64 100, !11, i64 104, !10, i64 108, !10, i64 116, !8, i64 124, !10, i64 164}
!7 = !{!"bool", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS6ImVec2", !11, i64 0, !11, i64 4}
!11 = !{!"float", !8, i64 0}
!12 = !{!"_ZTS6ImRect", !10, i64 0, !10, i64 8}
!13 = !{!"any pointer", !8, i64 0}
!14 = !{!"int", !8, i64 0}
!15 = !{!"_ZTSN7ImGuiEx10CanvasViewE", !10, i64 0, !11, i64 8, !11, i64 12}


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