; LLVM IR from tastangh/TI-RSLK-Texas-Instruments-Robotics-System-The-Maze-Edition :: tirslk_maze_1_00_00/Lab04_SoftwareDesign (Lab04_SoftwareDesignmain)

; 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"

@ADCBuffer = external dso_local constant [16 x i32], align 16
@DistanceBuffer = external dso_local constant [16 x i32], align 16

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @Convert(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @Program4_1() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %4, align 4, !tbaa !5
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %31, %0
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = icmp slt i32 %7, 16
  br i1 %8, label %9, label %34

9:                                                ; preds = %6
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [16 x i32], ptr @ADCBuffer, i64 0, i64 %11
  %13 = load i32, ptr %12, align 4, !tbaa !5
  store i32 %13, ptr %2, align 4, !tbaa !5
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = call i32 @Convert(i32 noundef %14)
  store i32 %15, ptr %3, align 4, !tbaa !5
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = load i32, ptr %1, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [16 x i32], ptr @DistanceBuffer, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = sub nsw i32 %16, %20
  store i32 %21, ptr %5, align 4, !tbaa !5
  %22 = load i32, ptr %5, align 4, !tbaa !5
  %23 = icmp slt i32 %22, -1
  br i1 %23, label %27, label %24

24:                                               ; preds = %9
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = icmp sgt i32 %25, 1
  br i1 %26, label %27, label %30

27:                                               ; preds = %24, %9
  %28 = load i32, ptr %4, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %4, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %27, %24
  br label %31

31:                                               ; preds = %30
  %32 = load i32, ptr %1, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %1, align 4, !tbaa !5
  br label %6, !llvm.loop !9

34:                                               ; preds = %6
  br label %35

35:                                               ; preds = %36, %34
  br label %36

36:                                               ; preds = %35
  br label %35
}

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 = distinct !{!9, !10}
!10 = !{!"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"

@ADCBuffer = external dso_local local_unnamed_addr constant [16 x i32], align 16

; Function Attrs: nounwind uwtable
declare dso_local i32 @Convert(i32 noundef) local_unnamed_addr #0

; Function Attrs: noreturn nounwind uwtable
define dso_local void @Program4_1() local_unnamed_addr #1 {
.preheader.preheader:
  %0 = load i32, ptr @ADCBuffer, align 16, !tbaa !5
  %1 = tail call i32 @Convert(i32 noundef %0)
  %2 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 4), align 4, !tbaa !5
  %3 = tail call i32 @Convert(i32 noundef %2)
  %4 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 8), align 8, !tbaa !5
  %5 = tail call i32 @Convert(i32 noundef %4)
  %6 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 12), align 4, !tbaa !5
  %7 = tail call i32 @Convert(i32 noundef %6)
  %8 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 16), align 16, !tbaa !5
  %9 = tail call i32 @Convert(i32 noundef %8)
  %10 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 20), align 4, !tbaa !5
  %11 = tail call i32 @Convert(i32 noundef %10)
  %12 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 24), align 8, !tbaa !5
  %13 = tail call i32 @Convert(i32 noundef %12)
  %14 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 28), align 4, !tbaa !5
  %15 = tail call i32 @Convert(i32 noundef %14)
  %16 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 32), align 16, !tbaa !5
  %17 = tail call i32 @Convert(i32 noundef %16)
  %18 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 36), align 4, !tbaa !5
  %19 = tail call i32 @Convert(i32 noundef %18)
  %20 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 40), align 8, !tbaa !5
  %21 = tail call i32 @Convert(i32 noundef %20)
  %22 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 44), align 4, !tbaa !5
  %23 = tail call i32 @Convert(i32 noundef %22)
  %24 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 48), align 16, !tbaa !5
  %25 = tail call i32 @Convert(i32 noundef %24)
  %26 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 52), align 4, !tbaa !5
  %27 = tail call i32 @Convert(i32 noundef %26)
  %28 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 56), align 8, !tbaa !5
  %29 = tail call i32 @Convert(i32 noundef %28)
  %30 = load i32, ptr getelementptr inbounds (i8, ptr @ADCBuffer, i64 60), align 4, !tbaa !5
  %31 = tail call i32 @Convert(i32 noundef %30)
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  br label %.preheader
}

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" }
attributes #1 = { noreturn 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass