; LLVM IR from mickypaganini/SSI2016-jet-clustering :: spartyjet-4.0.2_mac/External/fastjet-3.0.0/src (PseudoJet)

; 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.fastjet::PseudoJet" = type { ptr, %"class.fastjet::SharedPtr", %"class.fastjet::SharedPtr.0", double, double, double, double, double, double, double, i32, i32 }
%"class.fastjet::SharedPtr" = type { ptr }
%"class.fastjet::SharedPtr.0" = type { ptr }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pxEv(ptr noundef nonnull align 8 dereferenceable(88)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pyEv(ptr noundef nonnull align 8 dereferenceable(88)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK7fastjet9PseudoJet12_set_rap_phiEv(ptr noundef nonnull align 8 dereferenceable(88) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %8 = load ptr, ptr %2, align 8
  %9 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 9
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = fcmp oeq double %10, 0.000000e+00
  br i1 %11, label %12, label %14

12:                                               ; preds = %1
  %13 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  store double 0.000000e+00, ptr %13, align 8, !tbaa !15
  br label %19

14:                                               ; preds = %1
  %15 = call noundef double @_ZNK7fastjet9PseudoJet2pyEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %16 = call noundef double @_ZNK7fastjet9PseudoJet2pxEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %17 = call double @atan2(double noundef %15, double noundef %16) #4
  %18 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  store double %17, ptr %18, align 8, !tbaa !15
  br label %19

19:                                               ; preds = %14, %12
  %20 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  %21 = load double, ptr %20, align 8, !tbaa !15
  %22 = fcmp olt double %21, 0.000000e+00
  br i1 %22, label %23, label %27

23:                                               ; preds = %19
  %24 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  %25 = load double, ptr %24, align 8, !tbaa !15
  %26 = fadd double %25, 0x401921FB54442D18
  store double %26, ptr %24, align 8, !tbaa !15
  br label %27

27:                                               ; preds = %23, %19
  %28 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  %29 = load double, ptr %28, align 8, !tbaa !15
  %30 = fcmp oge double %29, 0x401921FB54442D18
  br i1 %30, label %31, label %35

31:                                               ; preds = %27
  %32 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 7
  %33 = load double, ptr %32, align 8, !tbaa !15
  %34 = fsub double %33, 0x401921FB54442D18
  store double %34, ptr %32, align 8, !tbaa !15
  br label %35

35:                                               ; preds = %31, %27
  %36 = call noundef double @_ZNK7fastjet9PseudoJet1EEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %37 = call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %38 = call noundef double @_ZSt3absd(double noundef %37)
  %39 = fcmp oeq double %36, %38
  br i1 %39, label %40, label %58

40:                                               ; preds = %35
  %41 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 9
  %42 = load double, ptr %41, align 8, !tbaa !9
  %43 = fcmp oeq double %42, 0.000000e+00
  br i1 %43, label %44, label %58

44:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %45 = call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %46 = call noundef double @_ZSt3absd(double noundef %45)
  %47 = fadd double 1.000000e+05, %46
  store double %47, ptr %3, align 8, !tbaa !16
  %48 = call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  %49 = fcmp oge double %48, 0.000000e+00
  br i1 %49, label %50, label %53

50:                                               ; preds = %44
  %51 = load double, ptr %3, align 8, !tbaa !16
  %52 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 8
  store double %51, ptr %52, align 8, !tbaa !17
  br label %57

53:                                               ; preds = %44
  %54 = load double, ptr %3, align 8, !tbaa !16
  %55 = fneg double %54
  %56 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 8
  store double %55, ptr %56, align 8, !tbaa !17
  br label %57

57:                                               ; preds = %53, %50
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  br label %88

58:                                               ; preds = %40, %35
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  store double 0.000000e+00, ptr %5, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %59 = call noundef double @_ZNK7fastjet9PseudoJet2m2Ev(ptr noundef nonnull align 8 dereferenceable(88) %8)
  store double %59, ptr %6, align 8, !tbaa !16
  %60 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6)
  %61 = load double, ptr %60, align 8, !tbaa !16
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  store double %61, ptr %4, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %62 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 6
  %63 = load double, ptr %62, align 8, !tbaa !18
  %64 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 5
  %65 = load double, ptr %64, align 8, !tbaa !19
  %66 = call noundef double @_ZSt3absd(double noundef %65)
  %67 = fadd double %63, %66
  store double %67, ptr %7, align 8, !tbaa !16
  %68 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 9
  %69 = load double, ptr %68, align 8, !tbaa !9
  %70 = load double, ptr %4, align 8, !tbaa !16
  %71 = fadd double %69, %70
  %72 = load double, ptr %7, align 8, !tbaa !16
  %73 = load double, ptr %7, align 8, !tbaa !16
  %74 = fmul double %72, %73
  %75 = fdiv double %71, %74
  %76 = call double @log(double noundef %75) #4
  %77 = fmul double 5.000000e-01, %76
  %78 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 8
  store double %77, ptr %78, align 8, !tbaa !17
  %79 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 5
  %80 = load double, ptr %79, align 8, !tbaa !19
  %81 = fcmp ogt double %80, 0.000000e+00
  br i1 %81, label %82, label %87

82:                                               ; preds = %58
  %83 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 8
  %84 = load double, ptr %83, align 8, !tbaa !17
  %85 = fneg double %84
  %86 = getelementptr inbounds %"class.fastjet::PseudoJet", ptr %8, i32 0, i32 8
  store double %85, ptr %86, align 8, !tbaa !17
  br label %87

87:                                               ; preds = %82, %58
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %88

88:                                               ; preds = %87, %57
  ret void
}

; Function Attrs: nounwind
declare double @atan2(double noundef, double noundef) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet1EEv(ptr noundef nonnull align 8 dereferenceable(88)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2m2Ev(ptr noundef nonnull align 8 dereferenceable(88)) #0 align 2

; Function Attrs: nounwind
declare double @log(double noundef) #2

attributes #0 = { inlinehint 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 #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 "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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, !13, i64 72}
!10 = !{!"_ZTSN7fastjet9PseudoJetE", !11, i64 8, !12, i64 16, !13, i64 24, !13, i64 32, !13, i64 40, !13, i64 48, !13, i64 56, !13, i64 64, !13, i64 72, !14, i64 80, !14, i64 84}
!11 = !{!"_ZTSN7fastjet9SharedPtrINS_22PseudoJetStructureBaseEEE", !6, i64 0}
!12 = !{!"_ZTSN7fastjet9SharedPtrINS_9PseudoJet12UserInfoBaseEEE", !6, i64 0}
!13 = !{!"double", !7, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!10, !13, i64 56}
!16 = !{!13, !13, i64 0}
!17 = !{!10, !13, i64 64}
!18 = !{!10, !13, i64 48}
!19 = !{!10, !13, i64 40}


; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pxEv(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pyEv(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZNK7fastjet9PseudoJet12_set_rap_phiEv(ptr noundef nonnull align 8 dereferenceable(88) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = getelementptr inbounds i8, ptr %0, i64 72
  %5 = load double, ptr %4, align 8, !tbaa !5
  %6 = fcmp oeq double %5, 0.000000e+00
  br i1 %6, label %11, label %7

7:                                                ; preds = %1
  %8 = tail call noundef double @_ZNK7fastjet9PseudoJet2pyEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %9 = tail call noundef double @_ZNK7fastjet9PseudoJet2pxEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %10 = tail call double @atan2(double noundef %8, double noundef %9) #4
  br label %11

11:                                               ; preds = %1, %7
  %.sink = phi double [ %10, %7 ], [ 0.000000e+00, %1 ]
  %12 = getelementptr inbounds i8, ptr %0, i64 56
  %13 = fcmp olt double %.sink, 0.000000e+00
  %14 = fadd double %.sink, 0x401921FB54442D18
  %15 = select i1 %13, double %14, double %.sink
  %16 = fcmp oge double %15, 0x401921FB54442D18
  %17 = fadd double %15, 0xC01921FB54442D18
  %simplifycfg.merge = select i1 %13, double %14, double %.sink
  %storemerge = select i1 %16, double %17, double %simplifycfg.merge
  store double %storemerge, ptr %12, align 8
  %18 = tail call noundef double @_ZNK7fastjet9PseudoJet1EEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %19 = tail call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %20 = tail call noundef double @_ZSt3absd(double noundef %19)
  %21 = fcmp oeq double %18, %20
  %22 = load double, ptr %4, align 8
  %23 = fcmp oeq double %22, 0.000000e+00
  %or.cond = select i1 %21, i1 %23, i1 false
  br i1 %or.cond, label %24, label %35

24:                                               ; preds = %11
  %25 = tail call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %26 = tail call noundef double @_ZSt3absd(double noundef %25)
  %27 = fadd double %26, 1.000000e+05
  %28 = tail call noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  %29 = fcmp ult double %28, 0.000000e+00
  br i1 %29, label %32, label %30

30:                                               ; preds = %24
  %31 = getelementptr inbounds i8, ptr %0, i64 64
  store double %27, ptr %31, align 8, !tbaa !14
  br label %56

32:                                               ; preds = %24
  %33 = fneg double %27
  %34 = getelementptr inbounds i8, ptr %0, i64 64
  store double %33, ptr %34, align 8, !tbaa !14
  br label %56

35:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  store double 0.000000e+00, ptr %2, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %36 = tail call noundef double @_ZNK7fastjet9PseudoJet2m2Ev(ptr noundef nonnull align 8 dereferenceable(88) %0)
  store double %36, ptr %3, align 8, !tbaa !15
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %38 = load double, ptr %37, align 8, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %39 = getelementptr inbounds i8, ptr %0, i64 48
  %40 = load double, ptr %39, align 8, !tbaa !16
  %41 = getelementptr inbounds i8, ptr %0, i64 40
  %42 = load double, ptr %41, align 8, !tbaa !17
  %43 = call noundef double @_ZSt3absd(double noundef %42)
  %44 = fadd double %40, %43
  %45 = load double, ptr %4, align 8, !tbaa !5
  %46 = fadd double %38, %45
  %47 = fmul double %44, %44
  %48 = fdiv double %46, %47
  %49 = call double @log(double noundef %48) #4
  %50 = fmul double %49, 5.000000e-01
  %51 = getelementptr inbounds i8, ptr %0, i64 64
  store double %50, ptr %51, align 8, !tbaa !14
  %52 = load double, ptr %41, align 8, !tbaa !17
  %53 = fcmp ogt double %52, 0.000000e+00
  br i1 %53, label %54, label %56

54:                                               ; preds = %35
  %55 = fneg double %50
  store double %55, ptr %51, align 8, !tbaa !14
  br label %56

56:                                               ; preds = %35, %54, %30, %32
  ret void
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @atan2(double noundef, double noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet1EEv(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2pzEv(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK7fastjet9PseudoJet2m2Ev(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @log(double noundef) local_unnamed_addr #2

attributes #0 = { inlinehint 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 #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 = { mustprogress nofree nounwind willreturn memory(write) "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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, !12, i64 72}
!6 = !{!"_ZTSN7fastjet9PseudoJetE", !7, i64 8, !11, i64 16, !12, i64 24, !12, i64 32, !12, i64 40, !12, i64 48, !12, i64 56, !12, i64 64, !12, i64 72, !13, i64 80, !13, i64 84}
!7 = !{!"_ZTSN7fastjet9SharedPtrINS_22PseudoJetStructureBaseEEE", !8, i64 0}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"_ZTSN7fastjet9SharedPtrINS_9PseudoJet12UserInfoBaseEEE", !8, i64 0}
!12 = !{!"double", !9, i64 0}
!13 = !{!"int", !9, i64 0}
!14 = !{!6, !12, i64 64}
!15 = !{!12, !12, i64 0}
!16 = !{!6, !12, i64 48}
!17 = !{!6, !12, i64 40}


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