; LLVM IR from lichen-community-systems/signaletic :: libsignaletic/src (libsignaletic)

; 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.sig_dsp_Calibrator_Node = type { float, i64, float, float, float, float, float }

; 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: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

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

16:                                               ; preds = %38, %3
  %17 = load i64, ptr %9, align 8, !tbaa !11
  %18 = load i64, ptr %7, align 8, !tbaa !11
  %19 = sub i64 %18, 1
  %20 = icmp ult i64 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  store i32 2, ptr %10, align 4
  br label %41

22:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %23 = load i64, ptr %9, align 8, !tbaa !11
  %24 = add i64 %23, 1
  store i64 %24, ptr %11, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 40, ptr %12) #3
  %25 = load ptr, ptr %5, align 8, !tbaa !9
  %26 = load i64, ptr %11, align 8, !tbaa !11
  %27 = getelementptr inbounds %struct.sig_dsp_Calibrator_Node, ptr %25, i64 %26
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %12, ptr align 8 %27, i64 40, i1 false), !tbaa.struct !13
  %28 = load float, ptr %4, align 4, !tbaa !5
  %29 = getelementptr inbounds %struct.sig_dsp_Calibrator_Node, ptr %12, i32 0, i32 5
  %30 = load float, ptr %29, align 4, !tbaa !14
  %31 = fcmp olt float %28, %30
  br i1 %31, label %32, label %34

32:                                               ; preds = %22
  %33 = load i64, ptr %11, align 8, !tbaa !11
  store i64 %33, ptr %8, align 8, !tbaa !11
  store i32 2, ptr %10, align 4
  br label %35

34:                                               ; preds = %22
  store i32 0, ptr %10, align 4
  br label %35

35:                                               ; preds = %34, %32
  call void @llvm.lifetime.end.p0(i64 40, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  %36 = load i32, ptr %10, align 4
  switch i32 %36, label %41 [
    i32 0, label %37
  ]

37:                                               ; preds = %35
  br label %38

38:                                               ; preds = %37
  %39 = load i64, ptr %9, align 8, !tbaa !11
  %40 = add i64 %39, 1
  store i64 %40, ptr %9, align 8, !tbaa !11
  br label %16, !llvm.loop !16

41:                                               ; preds = %35, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %42

42:                                               ; preds = %41
  %43 = load i64, ptr %8, align 8, !tbaa !11
  store i32 1, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret i64 %43
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 #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 = !{!"float", !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, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{i64 0, i64 4, !5, i64 8, i64 8, !11, i64 16, i64 4, !5, i64 20, i64 4, !5, i64 24, i64 4, !5, i64 28, i64 4, !5, i64 32, i64 4, !5}
!14 = !{!15, !6, i64 28}
!15 = !{!"sig_dsp_Calibrator_Node", !6, i64 0, !12, i64 8, !6, i64 16, !6, i64 20, !6, i64 24, !6, i64 28, !6, i64 32}
!16 = distinct !{!16, !17}
!17 = !{!"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"

%struct.sig_dsp_Calibrator_Node = type { float, i64, float, float, float, float, float }

; Function Attrs: inlinehint nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local i64 @sig_dsp_Calibrator_locateIntervalForValue(float noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = add i64 %2, -1
  %5 = add i64 %2, -2
  br label %6

6:                                                ; preds = %7, %3
  %.011 = phi i64 [ 0, %3 ], [ %8, %7 ]
  %exitcond.not = icmp eq i64 %.011, %5
  br i1 %exitcond.not, label %10, label %7

7:                                                ; preds = %6
  %8 = add i64 %.011, 1
  %.sroa.3.0..sroa_idx = getelementptr inbounds %struct.sig_dsp_Calibrator_Node, ptr %1, i64 %8, i32 5
  %.sroa.3.0.copyload = load float, ptr %.sroa.3.0..sroa_idx, align 4, !tbaa !5
  %9 = fcmp ule float %.sroa.3.0.copyload, %0
  br i1 %9, label %6, label %10, !llvm.loop !9

10:                                               ; preds = %6, %7
  %.2 = phi i64 [ %8, %7 ], [ %4, %6 ]
  ret i64 %.2
}

attributes #0 = { inlinehint nofree norecurse nosync nounwind memory(argmem: read) 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass