; LLVM IR from CubbyFlow/RenderFlow :: Sources/Common/Vertex.ll (ZN6Common12VertexHelper17GetNumberOfFloatsENS_12VertexFormatE)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN6Common12VertexHelper17GetNumberOfFloatsENS_12VertexFormatE(i32 noundef %0) #0 align 2 {
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !9
  %4 = load i32, ptr %2, align 4, !tbaa !5
  %5 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %4, i32 noundef 1)
  %6 = icmp ne i32 %5, 0
  br i1 %6, label %7, label %10

7:                                                ; preds = %1
  %8 = load i64, ptr %3, align 8, !tbaa !9
  %9 = add i64 %8, 3
  store i64 %9, ptr %3, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %7, %1
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %11, i32 noundef 2)
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %14, label %17

14:                                               ; preds = %10
  %15 = load i64, ptr %3, align 8, !tbaa !9
  %16 = add i64 %15, 3
  store i64 %16, ptr %3, align 8, !tbaa !9
  br label %17

17:                                               ; preds = %14, %10
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %18, i32 noundef 4)
  %20 = icmp ne i32 %19, 0
  br i1 %20, label %21, label %24

21:                                               ; preds = %17
  %22 = load i64, ptr %3, align 8, !tbaa !9
  %23 = add i64 %22, 2
  store i64 %23, ptr %3, align 8, !tbaa !9
  br label %24

24:                                               ; preds = %21, %17
  %25 = load i32, ptr %2, align 4, !tbaa !5
  %26 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %25, i32 noundef 8)
  %27 = icmp ne i32 %26, 0
  br i1 %27, label %28, label %31

28:                                               ; preds = %24
  %29 = load i64, ptr %3, align 8, !tbaa !9
  %30 = add i64 %29, 3
  store i64 %30, ptr %3, align 8, !tbaa !9
  br label %31

31:                                               ; preds = %28, %24
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %32, i32 noundef 16)
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %35, label %38

35:                                               ; preds = %31
  %36 = load i64, ptr %3, align 8, !tbaa !9
  %37 = add i64 %36, 4
  store i64 %37, ptr %3, align 8, !tbaa !9
  br label %38

38:                                               ; preds = %35, %31
  %39 = load i32, ptr %2, align 4, !tbaa !5
  %40 = call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %39, i32 noundef 32)
  %41 = icmp ne i32 %40, 0
  br i1 %41, label %42, label %45

42:                                               ; preds = %38
  %43 = load i64, ptr %3, align 8, !tbaa !9
  %44 = add i64 %43, 4
  store i64 %44, ptr %3, align 8, !tbaa !9
  br label %45

45:                                               ; preds = %42, %38
  %46 = load i64, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret i64 %46
}

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef, i32 noundef) #2

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

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 = { 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 = { 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 = !{!"_ZTSN6Common12VertexFormatE", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}


; 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 nounwind uwtable
define dso_local noundef i64 @_ZN6Common12VertexHelper17GetNumberOfFloatsENS_12VertexFormatE(i32 noundef %0) local_unnamed_addr #0 align 2 {
  %2 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 1)
  %.not = icmp eq i32 %2, 0
  %spec.select = select i1 %.not, i64 0, i64 3
  %3 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 2)
  %.not13 = icmp eq i32 %3, 0
  %4 = add nuw nsw i64 %spec.select, 3
  %.1 = select i1 %.not13, i64 %spec.select, i64 %4
  %5 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 4)
  %.not14 = icmp eq i32 %5, 0
  %6 = add nuw nsw i64 %.1, 2
  %.2 = select i1 %.not14, i64 %.1, i64 %6
  %7 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 8)
  %.not15 = icmp eq i32 %7, 0
  %8 = add nuw nsw i64 %.2, 3
  %.3 = select i1 %.not15, i64 %.2, i64 %8
  %9 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 16)
  %.not16 = icmp eq i32 %9, 0
  %10 = add nuw nsw i64 %.3, 4
  %.4 = select i1 %.not16, i64 %.3, i64 %10
  %11 = tail call noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef %0, i32 noundef 32)
  %.not17 = icmp eq i32 %11, 0
  %12 = add nuw nsw i64 %.4, 4
  %.5 = select i1 %.not17, i64 %.4, i64 %12
  ret i64 %.5
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN6CommonanENS_12VertexFormatES0_(i32 noundef, i32 noundef) local_unnamed_addr #1

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" }

!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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass