; LLVM IR from yangfengzzz/DigitalVox4 :: editor/imgui_canvas.ll (ZN7ImGuiEx6Canvas10CenterViewERK6ImRect)

; 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 }

; 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: mustprogress uwtable
declare dso_local void @_ZN7ImGuiEx6Canvas7SetViewERKNS_10CanvasViewE(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7ImGuiEx6Canvas10CenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(16) %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"struct.ImGuiEx::CanvasView", align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #3
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = call { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172) %6, ptr noundef nonnull align 4 dereferenceable(16) %7)
  %9 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %5, i32 0, i32 0
  %10 = extractvalue { <2 x float>, <2 x float> } %8, 0
  store <2 x float> %10, ptr %9, align 4
  %11 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %5, i32 0, i32 1
  %12 = extractvalue { <2 x float>, <2 x float> } %8, 1
  store <2 x float> %12, ptr %11, align 4
  call void @_ZN7ImGuiEx6Canvas7SetViewERKNS_10CanvasViewE(ptr noundef nonnull align 8 dereferenceable(172) %6, ptr noundef nonnull align 4 dereferenceable(16) %5)
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(16)) #2 align 2

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


; 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: mustprogress uwtable
declare dso_local void @_ZN7ImGuiEx6Canvas7SetViewERKNS_10CanvasViewE(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7ImGuiEx6Canvas10CenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(16) %1) local_unnamed_addr #2 align 2 {
  %3 = alloca %"struct.ImGuiEx::CanvasView", align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #3
  %4 = tail call { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(16) %1)
  %5 = extractvalue { <2 x float>, <2 x float> } %4, 0
  store <2 x float> %5, ptr %3, align 8
  %6 = getelementptr inbounds i8, ptr %3, i64 8
  %7 = extractvalue { <2 x float>, <2 x float> } %4, 1
  store <2 x float> %7, ptr %6, align 8
  call void @_ZN7ImGuiEx6Canvas7SetViewERKNS_10CanvasViewE(ptr noundef nonnull align 8 dereferenceable(172) %0, ptr noundef nonnull align 4 dereferenceable(16) %3)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, <2 x float> } @_ZNK7ImGuiEx6Canvas14CalcCenterViewERK6ImRect(ptr noundef nonnull align 8 dereferenceable(172), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass