; LLVM IR from Seeed-Studio/Seeed_Arduino_edgeimpulse :: src/edge-impulse-sdk/tensorflow/lite/micro (micro_utils)

; 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: 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: mustprogress uwtable
declare dso_local noundef i32 @_ZN6tflite30FloatToSymmetricQuantizedInt32Eff(float noundef, float noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6tflite27SymmetricPerChannelQuantizeEPKfPiiiPf(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %15 = load i32, ptr %8, align 4, !tbaa !9
  %16 = load i32, ptr %9, align 4, !tbaa !9
  %17 = sdiv i32 %15, %16
  store i32 %17, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  store i32 0, ptr %12, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %57, %5
  %19 = load i32, ptr %12, align 4, !tbaa !9
  %20 = load i32, ptr %9, align 4, !tbaa !9
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  store i32 2, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  br label %60

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #2
  store i32 0, ptr %14, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %53, %23
  %25 = load i32, ptr %14, align 4, !tbaa !9
  %26 = load i32, ptr %11, align 4, !tbaa !9
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %24
  store i32 5, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #2
  br label %56

29:                                               ; preds = %24
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load i32, ptr %12, align 4, !tbaa !9
  %32 = load i32, ptr %11, align 4, !tbaa !9
  %33 = mul nsw i32 %31, %32
  %34 = load i32, ptr %14, align 4, !tbaa !9
  %35 = add nsw i32 %33, %34
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds float, ptr %30, i64 %36
  %38 = load float, ptr %37, align 4, !tbaa !11
  %39 = load ptr, ptr %10, align 8, !tbaa !5
  %40 = load i32, ptr %12, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds float, ptr %39, i64 %41
  %43 = load float, ptr %42, align 4, !tbaa !11
  %44 = call noundef i32 @_ZN6tflite30FloatToSymmetricQuantizedInt32Eff(float noundef %38, float noundef %43)
  %45 = load ptr, ptr %7, align 8, !tbaa !5
  %46 = load i32, ptr %12, align 4, !tbaa !9
  %47 = load i32, ptr %11, align 4, !tbaa !9
  %48 = mul nsw i32 %46, %47
  %49 = load i32, ptr %14, align 4, !tbaa !9
  %50 = add nsw i32 %48, %49
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds i32, ptr %45, i64 %51
  store i32 %44, ptr %52, align 4, !tbaa !9
  br label %53

53:                                               ; preds = %29
  %54 = load i32, ptr %14, align 4, !tbaa !9
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %14, align 4, !tbaa !9
  br label %24, !llvm.loop !13

56:                                               ; preds = %28
  br label %57

57:                                               ; preds = %56
  %58 = load i32, ptr %12, align 4, !tbaa !9
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %12, align 4, !tbaa !9
  br label %18, !llvm.loop !15

60:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


; 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 uwtable
declare dso_local noundef i32 @_ZN6tflite30FloatToSymmetricQuantizedInt32Eff(float noundef, float noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6tflite27SymmetricPerChannelQuantizeEPKfPiiiPf(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, i32 noundef %2, i32 noundef %3, ptr nocapture noundef readonly %4) local_unnamed_addr #0 {
  %6 = sdiv i32 %2, %3
  %7 = icmp sgt i32 %3, 0
  %8 = icmp sgt i32 %6, 0
  %or.cond = and i1 %7, %8
  br i1 %or.cond, label %.preheader.us.preheader, label %._crit_edge21

.preheader.us.preheader:                          ; preds = %5
  %9 = zext nneg i32 %6 to i64
  %wide.trip.count27 = zext nneg i32 %3 to i64
  br label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.us.preheader, %._crit_edge.us
  %indvars.iv24 = phi i64 [ 0, %.preheader.us.preheader ], [ %indvars.iv.next25, %._crit_edge.us ]
  %10 = mul nuw nsw i64 %indvars.iv24, %9
  %11 = getelementptr inbounds float, ptr %4, i64 %indvars.iv24
  br label %12

12:                                               ; preds = %.preheader.us, %12
  %indvars.iv = phi i64 [ 0, %.preheader.us ], [ %indvars.iv.next, %12 ]
  %13 = add nuw nsw i64 %indvars.iv, %10
  %14 = getelementptr inbounds float, ptr %0, i64 %13
  %15 = load float, ptr %14, align 4, !tbaa !5
  %16 = load float, ptr %11, align 4, !tbaa !5
  %17 = tail call noundef i32 @_ZN6tflite30FloatToSymmetricQuantizedInt32Eff(float noundef %15, float noundef %16)
  %18 = getelementptr inbounds i32, ptr %1, i64 %13
  store i32 %17, ptr %18, align 4, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %9
  br i1 %exitcond.not, label %._crit_edge.us, label %12, !llvm.loop !11

._crit_edge.us:                                   ; preds = %12
  %indvars.iv.next25 = add nuw nsw i64 %indvars.iv24, 1
  %exitcond28.not = icmp eq i64 %indvars.iv.next25, %wide.trip.count27
  br i1 %exitcond28.not, label %._crit_edge21, label %.preheader.us, !llvm.loop !13

._crit_edge21:                                    ; preds = %._crit_edge.us, %5
  ret void
}

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" }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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