; LLVM IR from HRI-EU/Rcs :: src/RcsCore/Rcs_filters.ll (ZN3Rcs16SecondOrderLPFND7iterateEv)

; 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::SecondOrderLPFND" = type { ptr, ptr, i64 }

; 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 void @_ZN3Rcs16SecondOrderLPFND7iterateEv(ptr noundef nonnull align 8 dereferenceable(24) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, 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
  store i64 0, ptr %3, align 8, !tbaa !9
  br label %5

5:                                                ; preds = %30, %1
  %6 = load i64, ptr %3, align 8, !tbaa !9
  %7 = getelementptr inbounds %"class.Rcs::SecondOrderLPFND", ptr %4, i32 0, i32 2
  %8 = load i64, ptr %7, align 8, !tbaa !11
  %9 = icmp ult i64 %6, %8
  br i1 %9, label %11, label %10

10:                                               ; preds = %5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  br label %33

11:                                               ; preds = %5
  %12 = getelementptr inbounds %"class.Rcs::SecondOrderLPFND", ptr %4, i32 0, i32 1
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = load i64, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds ptr, ptr %13, i64 %14
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = getelementptr inbounds %"class.Rcs::SecondOrderLPFND", ptr %4, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = load i64, ptr %3, align 8, !tbaa !9
  %20 = getelementptr inbounds ptr, ptr %18, i64 %19
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = load ptr, ptr %21, align 8, !tbaa !14
  %23 = getelementptr inbounds ptr, ptr %22, i64 15
  %24 = load ptr, ptr %23, align 8
  %25 = call noundef double %24(ptr noundef nonnull align 8 dereferenceable(56) %21)
  %26 = load ptr, ptr %16, align 8, !tbaa !14
  %27 = getelementptr inbounds ptr, ptr %26, i64 6
  %28 = load ptr, ptr %27, align 8
  %29 = call noundef double %28(ptr noundef nonnull align 8 dereferenceable(56) %16, double noundef %25)
  br label %30

30:                                               ; preds = %11
  %31 = load i64, ptr %3, align 8, !tbaa !9
  %32 = add i64 %31, 1
  store i64 %32, ptr %3, align 8, !tbaa !9
  br label %5, !llvm.loop !16

33:                                               ; preds = %10
  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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"_ZTSN3Rcs16SecondOrderLPFNDE", !6, i64 8, !10, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !8, i64 0}
!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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3Rcs16SecondOrderLPFND7iterateEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  br label %5

._crit_edge:                                      ; preds = %5, %1
  ret void

5:                                                ; preds = %.lr.ph, %5
  %.04 = phi i64 [ 0, %.lr.ph ], [ %17, %5 ]
  %6 = load ptr, ptr %4, align 8, !tbaa !11
  %7 = getelementptr inbounds ptr, ptr %6, i64 %.04
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = load ptr, ptr %8, align 8, !tbaa !13
  %10 = getelementptr inbounds i8, ptr %9, i64 120
  %11 = load ptr, ptr %10, align 8
  %12 = tail call noundef double %11(ptr noundef nonnull align 8 dereferenceable(56) %8)
  %13 = load ptr, ptr %8, align 8, !tbaa !13
  %14 = getelementptr inbounds i8, ptr %13, i64 48
  %15 = load ptr, ptr %14, align 8
  %16 = tail call noundef double %15(ptr noundef nonnull align 8 dereferenceable(56) %8, double noundef %12)
  %17 = add nuw i64 %.04, 1
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %5, label %._crit_edge, !llvm.loop !15
}

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, !10, i64 16}
!6 = !{!"_ZTSN3Rcs16SecondOrderLPFNDE", !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!7, !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"vtable pointer", !9, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass