; LLVM IR from sskorol/respeaker-websockets :: src (cAPA102)

; 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.cAPA102_LEDs = type { i32, i32, ptr, i8 }

@cAPA012_BUF = external hidden global %struct.cAPA102_LEDs, align 8

; 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: nounwind uwtable
define dso_local void @cAPA102_Get_Pixel_RGB(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !9
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = load i32, ptr @cAPA012_BUF, align 8, !tbaa !11
  %12 = icmp ult i32 %10, %11
  br i1 %12, label %13, label %25

13:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %14 = load ptr, ptr getelementptr inbounds (%struct.cAPA102_LEDs, ptr @cAPA012_BUF, i32 0, i32 2), align 8, !tbaa !13
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = mul i32 %15, 4
  %17 = zext i32 %16 to i64
  %18 = getelementptr inbounds i8, ptr %14, i64 %17
  store ptr %18, ptr %9, align 8, !tbaa !9
  %19 = load ptr, ptr %9, align 8, !tbaa !9
  %20 = getelementptr inbounds i8, ptr %19, i64 3
  store ptr %20, ptr %6, align 8, !tbaa !9
  %21 = load ptr, ptr %9, align 8, !tbaa !9
  %22 = getelementptr inbounds i8, ptr %21, i64 2
  store ptr %22, ptr %7, align 8, !tbaa !9
  %23 = load ptr, ptr %9, align 8, !tbaa !9
  %24 = getelementptr inbounds i8, ptr %23, i64 1
  store ptr %24, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  br label %25

25:                                               ; preds = %13, %4
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"", !6, i64 0, !6, i64 4, !10, i64 8, !7, i64 16}
!13 = !{!12, !10, i64 8}


; 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 nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local void @cAPA102_Get_Pixel_RGB(i32 noundef %0, ptr nocapture noundef readnone %1, ptr nocapture noundef readnone %2, ptr nocapture noundef readnone %3) local_unnamed_addr #0 {
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass