; LLVM IR from ubaldot/defrecs :: stm32f4x/ADC_Readings/Drivers/CMSIS/NN/Source/ConvolutionFunctions (s8)

; 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.cmsis_nn_dims = type { i32, i32, i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @arm_convolve_1_x_n_s8(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef %6, ptr noundef %7, ptr noundef %8, ptr noundef %9, ptr noundef %10) #0 {
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca ptr, align 8
  %16 = alloca ptr, align 8
  %17 = alloca ptr, align 8
  %18 = alloca ptr, align 8
  %19 = alloca ptr, align 8
  %20 = alloca ptr, align 8
  %21 = alloca ptr, align 8
  %22 = alloca ptr, align 8
  %23 = alloca i32, align 4
  store ptr %0, ptr %12, align 8, !tbaa !5
  store ptr %1, ptr %13, align 8, !tbaa !5
  store ptr %2, ptr %14, align 8, !tbaa !5
  store ptr %3, ptr %15, align 8, !tbaa !5
  store ptr %4, ptr %16, align 8, !tbaa !5
  store ptr %5, ptr %17, align 8, !tbaa !5
  store ptr %6, ptr %18, align 8, !tbaa !5
  store ptr %7, ptr %19, align 8, !tbaa !5
  store ptr %8, ptr %20, align 8, !tbaa !5
  store ptr %9, ptr %21, align 8, !tbaa !5
  store ptr %10, ptr %22, align 8, !tbaa !5
  %24 = load ptr, ptr %19, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %23) #3
  store i32 0, ptr %23, align 4, !tbaa !9
  %25 = load ptr, ptr %21, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.cmsis_nn_dims, ptr %25, i32 0, i32 2
  %27 = load i32, ptr %26, align 4, !tbaa !11
  %28 = srem i32 %27, 4
  %29 = icmp ne i32 %28, 0
  br i1 %29, label %30, label %31

30:                                               ; preds = %11
  store i32 -3, ptr %23, align 4, !tbaa !9
  br label %44

31:                                               ; preds = %11
  %32 = load ptr, ptr %12, align 8, !tbaa !5
  %33 = load ptr, ptr %13, align 8, !tbaa !5
  %34 = load ptr, ptr %14, align 8, !tbaa !5
  %35 = load ptr, ptr %15, align 8, !tbaa !5
  %36 = load ptr, ptr %16, align 8, !tbaa !5
  %37 = load ptr, ptr %17, align 8, !tbaa !5
  %38 = load ptr, ptr %18, align 8, !tbaa !5
  %39 = load ptr, ptr %19, align 8, !tbaa !5
  %40 = load ptr, ptr %20, align 8, !tbaa !5
  %41 = load ptr, ptr %21, align 8, !tbaa !5
  %42 = load ptr, ptr %22, align 8, !tbaa !5
  %43 = call i32 @arm_convolve_s8(ptr noundef %32, ptr noundef %33, ptr noundef %34, ptr noundef %35, ptr noundef %36, ptr noundef %37, ptr noundef %38, ptr noundef %39, ptr noundef %40, ptr noundef %41, ptr noundef %42)
  store i32 %43, ptr %23, align 4, !tbaa !9
  br label %44

44:                                               ; preds = %31, %30
  %45 = load i32, ptr %23, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %23) #3
  ret i32 %45
}

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

declare i32 @arm_convolve_s8(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr 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 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12}


; 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
define dso_local i32 @arm_convolve_1_x_n_s8(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef %6, ptr noundef %7, ptr noundef %8, ptr noundef %9, ptr noundef %10) local_unnamed_addr #0 {
  %12 = getelementptr inbounds i8, ptr %9, i64 8
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = and i32 %13, 3
  %.not = icmp eq i32 %14, 0
  br i1 %.not, label %15, label %17

15:                                               ; preds = %11
  %16 = tail call i32 @arm_convolve_s8(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef %6, ptr noundef %7, ptr noundef %8, ptr noundef nonnull %9, ptr noundef %10) #2
  br label %17

17:                                               ; preds = %11, %15
  %.0 = phi i32 [ %16, %15 ], [ -3, %11 ]
  ret i32 %.0
}

declare i32 @arm_convolve_s8(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

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 = { "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, !7, i64 8}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass