; LLVM IR from buresjan/optim_lbm :: nomad/src/Math/Direction.ll (ZNK9NOMAD_4_39Direction13squaredL2NormEv)

; 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.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>
%"class.NOMAD_4_3::ArrayOfDouble" = type { ptr, i64, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublepLERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK9NOMAD_4_39Direction13squaredL2NormEv(ptr dead_on_unwind noalias writable sret(%"class.NOMAD_4_3::Double") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca double, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.NOMAD_4_3::Double", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8
  store i1 false, ptr %5, align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store double 0.000000e+00, ptr %6, align 8, !tbaa !9
  call void @_ZN9NOMAD_4_36DoubleC1ERKd(ptr noundef nonnull align 8 dereferenceable(17) %0, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store i64 0, ptr %7, align 8, !tbaa !11
  br label %12

12:                                               ; preds = %34, %2
  %13 = load i64, ptr %7, align 8, !tbaa !11
  %14 = invoke noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11)
          to label %15 unwind label %18

15:                                               ; preds = %12
  %16 = icmp ult i64 %13, %14
  br i1 %16, label %22, label %17

17:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %47

18:                                               ; preds = %12
  %19 = landingpad { ptr, i32 }
          cleanup
  %20 = extractvalue { ptr, i32 } %19, 0
  store ptr %20, ptr %8, align 8
  %21 = extractvalue { ptr, i32 } %19, 1
  store i32 %21, ptr %9, align 4
  br label %46

22:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #6
  %23 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %11, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = load i64, ptr %7, align 8, !tbaa !11
  %26 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %24, i64 %25
  %27 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %11, i32 0, i32 2
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  %29 = load i64, ptr %7, align 8, !tbaa !11
  %30 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %28, i64 %29
  invoke void @_ZN9NOMAD_4_3mlERKNS_6DoubleES2_(ptr dead_on_unwind writable sret(%"class.NOMAD_4_3::Double") align 8 %10, ptr noundef nonnull align 8 dereferenceable(17) %26, ptr noundef nonnull align 8 dereferenceable(17) %30)
          to label %31 unwind label %37

31:                                               ; preds = %22
  %32 = invoke noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublepLERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %0, ptr noundef nonnull align 8 dereferenceable(17) %10)
          to label %33 unwind label %41

33:                                               ; preds = %31
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %10) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #6
  br label %34

34:                                               ; preds = %33
  %35 = load i64, ptr %7, align 8, !tbaa !11
  %36 = add i64 %35, 1
  store i64 %36, ptr %7, align 8, !tbaa !11
  br label %12, !llvm.loop !15

37:                                               ; preds = %22
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %8, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %9, align 4
  br label %45

41:                                               ; preds = %31
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %8, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %9, align 4
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %10) #6
  br label %45

45:                                               ; preds = %41, %37
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #6
  br label %46

46:                                               ; preds = %45, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %0) #6
  br label %51

47:                                               ; preds = %17
  store i1 true, ptr %5, align 1
  %48 = load i1, ptr %5, align 1
  br i1 %48, label %50, label %49

49:                                               ; preds = %47
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %0) #6
  br label %50

50:                                               ; preds = %49, %47
  ret void

51:                                               ; preds = %46
  %52 = load ptr, ptr %8, align 8
  %53 = load i32, ptr %9, align 4
  %54 = insertvalue { ptr, i32 } poison, ptr %52, 0
  %55 = insertvalue { ptr, i32 } %54, i32 %53, 1
  resume { ptr, i32 } %55
}

declare void @_ZN9NOMAD_4_36DoubleC1ERKd(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN9NOMAD_4_3mlERKNS_6DoubleES2_(ptr dead_on_unwind noalias writable sret(%"class.NOMAD_4_3::Double") align 8, ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) #4

; Function Attrs: nounwind
declare void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17)) unnamed_addr #5

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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 = { 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 #4 = { inlinehint 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 #5 = { nounwind "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 #6 = { 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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !6, i64 16}
!14 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !12, i64 8, !6, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"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"

%"class.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublepLERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK9NOMAD_4_39Direction13squaredL2NormEv(ptr dead_on_unwind noalias nonnull writable sret(%"class.NOMAD_4_3::Double") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca double, align 8
  %4 = alloca %"class.NOMAD_4_3::Double", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  store double 0.000000e+00, ptr %3, align 8, !tbaa !5
  call void @_ZN9NOMAD_4_36DoubleC1ERKd(ptr noundef nonnull align 8 dereferenceable(17) %0, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  %5 = call noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1)
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %6 = getelementptr inbounds i8, ptr %1, i64 16
  br label %7

7:                                                ; preds = %.lr.ph, %12
  %.0810 = phi i64 [ 0, %.lr.ph ], [ %13, %12 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  %8 = load ptr, ptr %6, align 8, !tbaa !9
  %9 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %8, i64 %.0810
  invoke void @_ZN9NOMAD_4_3mlERKNS_6DoubleES2_(ptr dead_on_unwind nonnull writable sret(%"class.NOMAD_4_3::Double") align 8 %4, ptr noundef nonnull align 8 dereferenceable(17) %9, ptr noundef nonnull align 8 dereferenceable(17) %9)
          to label %10 unwind label %16

10:                                               ; preds = %7
  %11 = invoke noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublepLERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %0, ptr noundef nonnull align 8 dereferenceable(17) %4)
          to label %12 unwind label %18

12:                                               ; preds = %10
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  %13 = add nuw i64 %.0810, 1
  %14 = call noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1)
  %15 = icmp ult i64 %13, %14
  br i1 %15, label %7, label %._crit_edge, !llvm.loop !13

16:                                               ; preds = %7
  %17 = landingpad { ptr, i32 }
          cleanup
  br label %20

18:                                               ; preds = %10
  %19 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %4) #6
  br label %20

20:                                               ; preds = %18, %16
  %.pn = phi { ptr, i32 } [ %19, %18 ], [ %17, %16 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17) %0) #6
  resume { ptr, i32 } %.pn

._crit_edge:                                      ; preds = %12, %2
  ret void
}

declare void @_ZN9NOMAD_4_36DoubleC1ERKd(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN9NOMAD_4_3mlERKNS_6DoubleES2_(ptr dead_on_unwind noalias writable sret(%"class.NOMAD_4_3::Double") align 8, ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #4

; Function Attrs: nounwind
declare void @_ZN9NOMAD_4_36DoubleD1Ev(ptr noundef nonnull align 8 dereferenceable(17)) unnamed_addr #5

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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 = { 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 #4 = { inlinehint 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 #5 = { nounwind "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 #6 = { 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !12, i64 16}
!10 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !11, i64 8, !12, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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