; LLVM IR from IOsonata/IOsonata :: src/miscdev (ledmx)

; 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.LEDMXDEV = type { i32, [16 x i32], i32, ptr, ptr }

; 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
declare dso_local void @LedMxCmd(ptr noundef, i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @LedMxBlink(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %32, %2
  %7 = load i32, ptr %5, align 4, !tbaa !9
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.LEDMXDEV, ptr %8, i32 0, i32 0
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = icmp slt i32 %7, %10
  br i1 %11, label %12, label %35

12:                                               ; preds = %6
  %13 = load i32, ptr %4, align 4, !tbaa !9
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %23

15:                                               ; preds = %12
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.LEDMXDEV, ptr %17, i32 0, i32 1
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [16 x i32], ptr %18, i64 0, i64 %20
  %22 = load i32, ptr %21, align 4, !tbaa !9
  call void @LedMxCmd(ptr noundef %16, i32 noundef 2066, i32 noundef %22)
  br label %31

23:                                               ; preds = %12
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.LEDMXDEV, ptr %25, i32 0, i32 1
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [16 x i32], ptr %26, i64 0, i64 %28
  %30 = load i32, ptr %29, align 4, !tbaa !9
  call void @LedMxCmd(ptr noundef %24, i32 noundef 2064, i32 noundef %30)
  br label %31

31:                                               ; preds = %23, %15
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr %5, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %5, align 4, !tbaa !9
  br label %6, !llvm.loop !13

35:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !7, i64 4, !10, i64 68, !6, i64 72, !6, i64 80}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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: nounwind uwtable
declare dso_local void @LedMxCmd(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @LedMxBlink(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load i32, ptr %0, align 4, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %.not = icmp eq i32 %1, 0
  %5 = getelementptr inbounds i8, ptr %0, i64 4
  br i1 %.not, label %.lr.ph.split.us, label %.lr.ph.split

.lr.ph.split.us:                                  ; preds = %.lr.ph, %.lr.ph.split.us
  %indvars.iv12 = phi i64 [ %indvars.iv.next13, %.lr.ph.split.us ], [ 0, %.lr.ph ]
  %6 = getelementptr inbounds [16 x i32], ptr %5, i64 0, i64 %indvars.iv12
  %7 = load i32, ptr %6, align 4, !tbaa !11
  tail call void @LedMxCmd(ptr noundef nonnull %0, i32 noundef 2064, i32 noundef %7)
  %indvars.iv.next13 = add nuw nsw i64 %indvars.iv12, 1
  %8 = load i32, ptr %0, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = icmp slt i64 %indvars.iv.next13, %9
  br i1 %10, label %.lr.ph.split.us, label %._crit_edge, !llvm.loop !12

.lr.ph.split:                                     ; preds = %.lr.ph, %.lr.ph.split
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph.split ], [ 0, %.lr.ph ]
  %11 = getelementptr inbounds [16 x i32], ptr %5, i64 0, i64 %indvars.iv
  %12 = load i32, ptr %11, align 4, !tbaa !11
  tail call void @LedMxCmd(ptr noundef nonnull %0, i32 noundef 2066, i32 noundef %12)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load i32, ptr %0, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = icmp slt i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph.split, label %._crit_edge, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph.split, %.lr.ph.split.us, %2
  ret void
}

attributes #0 = { 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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"", !7, i64 0, !8, i64 4, !7, i64 68, !10, i64 72, !10, i64 80}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass