; LLVM IR from HRI-EU/Rcs :: src/RcsCore/Rcs_filters.ll (ZN3Rcs12RampFilter1D7iterateEv)

; 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"

%"class.Rcs::RampFilter1D" = type { %"class.Rcs::SecondOrderLPF1D", double, double }
%"class.Rcs::SecondOrderLPF1D" = type { ptr, double, double, double, double, double, double }

; 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
define dso_local noundef double @_ZN3Rcs12RampFilter1D7iterateEv(ptr noundef nonnull align 8 dereferenceable(72) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %5 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 1
  %6 = load double, ptr %5, align 8, !tbaa !9
  %7 = getelementptr inbounds %"class.Rcs::SecondOrderLPF1D", ptr %4, i32 0, i32 5
  %8 = load double, ptr %7, align 8, !tbaa !13
  %9 = fmul double %6, %8
  store double %9, ptr %3, align 8, !tbaa !14
  %10 = getelementptr inbounds %"class.Rcs::SecondOrderLPF1D", ptr %4, i32 0, i32 3
  %11 = load double, ptr %10, align 8, !tbaa !15
  %12 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  %13 = load double, ptr %12, align 8, !tbaa !16
  %14 = load double, ptr %3, align 8, !tbaa !14
  %15 = fadd double %13, %14
  %16 = fcmp ogt double %11, %15
  br i1 %16, label %17, label %22

17:                                               ; preds = %1
  %18 = load double, ptr %3, align 8, !tbaa !14
  %19 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  %20 = load double, ptr %19, align 8, !tbaa !16
  %21 = fadd double %20, %18
  store double %21, ptr %19, align 8, !tbaa !16
  br label %40

22:                                               ; preds = %1
  %23 = getelementptr inbounds %"class.Rcs::SecondOrderLPF1D", ptr %4, i32 0, i32 3
  %24 = load double, ptr %23, align 8, !tbaa !15
  %25 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  %26 = load double, ptr %25, align 8, !tbaa !16
  %27 = load double, ptr %3, align 8, !tbaa !14
  %28 = fsub double %26, %27
  %29 = fcmp olt double %24, %28
  br i1 %29, label %30, label %35

30:                                               ; preds = %22
  %31 = load double, ptr %3, align 8, !tbaa !14
  %32 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  %33 = load double, ptr %32, align 8, !tbaa !16
  %34 = fsub double %33, %31
  store double %34, ptr %32, align 8, !tbaa !16
  br label %39

35:                                               ; preds = %22
  %36 = getelementptr inbounds %"class.Rcs::SecondOrderLPF1D", ptr %4, i32 0, i32 3
  %37 = load double, ptr %36, align 8, !tbaa !15
  %38 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  store double %37, ptr %38, align 8, !tbaa !16
  br label %39

39:                                               ; preds = %35, %30
  br label %40

40:                                               ; preds = %39, %17
  %41 = getelementptr inbounds %"class.Rcs::RampFilter1D", ptr %4, i32 0, i32 2
  %42 = load double, ptr %41, align 8, !tbaa !16
  %43 = load ptr, ptr %4, align 8, !tbaa !17
  %44 = getelementptr inbounds ptr, ptr %43, i64 6
  %45 = load ptr, ptr %44, align 8
  %46 = call noundef double %45(ptr noundef nonnull align 8 dereferenceable(56) %4, double noundef %42)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret double %46
}

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, !12, i64 56}
!10 = !{!"_ZTSN3Rcs12RampFilter1DE", !11, i64 0, !12, i64 56, !12, i64 64}
!11 = !{!"_ZTSN3Rcs16SecondOrderLPF1DE", !12, i64 8, !12, i64 16, !12, i64 24, !12, i64 32, !12, i64 40, !12, i64 48}
!12 = !{!"double", !7, i64 0}
!13 = !{!11, !12, i64 40}
!14 = !{!12, !12, i64 0}
!15 = !{!11, !12, i64 24}
!16 = !{!10, !12, i64 64}
!17 = !{!18, !18, i64 0}
!18 = !{!"vtable pointer", !8, i64 0}


; 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
define dso_local noundef double @_ZN3Rcs12RampFilter1D7iterateEv(ptr noundef nonnull align 8 dereferenceable(72) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 56
  %3 = load double, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 40
  %5 = load double, ptr %4, align 8, !tbaa !11
  %6 = fmul double %3, %5
  %7 = getelementptr inbounds i8, ptr %0, i64 24
  %8 = load double, ptr %7, align 8, !tbaa !12
  %9 = getelementptr inbounds i8, ptr %0, i64 64
  %10 = load double, ptr %9, align 8, !tbaa !13
  %11 = fadd double %6, %10
  %12 = fcmp ogt double %8, %11
  br i1 %12, label %16, label %13

13:                                               ; preds = %1
  %14 = fsub double %10, %6
  %15 = fcmp olt double %8, %14
  %. = select i1 %15, double %14, double %8
  br label %16

16:                                               ; preds = %13, %1
  %.sink = phi double [ %11, %1 ], [ %., %13 ]
  store double %.sink, ptr %9, align 8, !tbaa !13
  %17 = load ptr, ptr %0, align 8, !tbaa !14
  %18 = getelementptr inbounds i8, ptr %17, i64 48
  %19 = load ptr, ptr %18, align 8
  %20 = tail call noundef double %19(ptr noundef nonnull align 8 dereferenceable(56) %0, double noundef %.sink)
  ret double %20
}

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, !8, i64 56}
!6 = !{!"_ZTSN3Rcs12RampFilter1DE", !7, i64 0, !8, i64 56, !8, i64 64}
!7 = !{!"_ZTSN3Rcs16SecondOrderLPF1DE", !8, i64 8, !8, i64 16, !8, i64 24, !8, i64 32, !8, i64 40, !8, i64 48}
!8 = !{!"double", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!7, !8, i64 40}
!12 = !{!7, !8, i64 24}
!13 = !{!6, !8, i64 64}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !10, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass