; LLVM IR from Try/Tempest :: Engine/thirdparty/spirv_cross (spirv_msl)

; 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.spirv_cross::TypedID.413" = type { i32 }
%"struct.spirv_cross::SPIRExpression" = type <{ %"struct.spirv_cross::IVariant.base", %"class.spirv_cross::TypedID.413", %"class.std::__cxx11::basic_string", %"class.spirv_cross::TypedID.414", %"class.spirv_cross::TypedID.413", i8, i8, i8, i8, [4 x i8], %"class.spirv_cross::SmallVector.7", %"class.spirv_cross::SmallVector.7", %"class.spirv_cross::SmallVector.7", i32, [4 x i8] }>
%"struct.spirv_cross::IVariant.base" = type <{ ptr, %"class.spirv_cross::TypedID.413" }>
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.spirv_cross::TypedID.414" = type { i32 }
%"class.spirv_cross::SmallVector.7" = type { %"class.spirv_cross::VectorView.8", i64, %"class.spirv_cross::AlignedBuffer.9" }
%"class.spirv_cross::VectorView.8" = type { ptr, i64 }
%"class.spirv_cross::AlignedBuffer.9" = type { [32 x i8] }

; 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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK11spirv_cross7TypedIDILNS_5TypesE0EEcvjEv(ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

declare noundef i32 @_ZNK11spirv_cross8Compiler14get_decorationENS_7TypedIDILNS_5TypesE0EEEN3spv10DecorationE(ptr noundef nonnull align 8 dereferenceable(3176), i32, i32 noundef) #3

declare noundef zeroext i1 @_ZNK11spirv_cross8Compiler25is_tessellating_trianglesEv(ptr noundef nonnull align 8 dereferenceable(3176)) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_12SPIRConstantEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176), i32 noundef) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_14SPIRExpressionEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176), i32 noundef) #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK11spirv_cross12SPIRConstant6scalarEjj(ptr noundef nonnull align 8 dereferenceable(360), i32 noundef, i32 noundef) #5 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN11spirv_cross11CompilerMSL35is_out_of_bounds_tessellation_levelEj(ptr noundef nonnull align 8 dereferenceable(12482) %0, i32 noundef %1) #4 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %"class.spirv_cross::TypedID.413", align 4
  %10 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %11 = load ptr, ptr %4, align 8
  %12 = call noundef zeroext i1 @_ZNK11spirv_cross8Compiler25is_tessellating_trianglesEv(ptr noundef nonnull align 8 dereferenceable(3176) %11)
  br i1 %12, label %14, label %13

13:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  br label %67

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = call noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_14SPIRExpressionEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176) %11, i32 noundef %15)
  store ptr %16, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %24

19:                                               ; preds = %14
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = getelementptr inbounds %"struct.spirv_cross::SPIRExpression", ptr %20, i32 0, i32 7
  %22 = load i8, ptr %21, align 2, !tbaa !11, !range !23, !noundef !24
  %23 = trunc i8 %22 to i1
  br i1 %23, label %25, label %24

24:                                               ; preds = %19, %14
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %66

25:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = getelementptr inbounds %"struct.spirv_cross::SPIRExpression", ptr %26, i32 0, i32 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 4 %27, i64 4, i1 false), !tbaa.struct !25
  %28 = getelementptr inbounds %"class.spirv_cross::TypedID.413", ptr %9, i32 0, i32 0
  %29 = load i32, ptr %28, align 4
  %30 = call noundef i32 @_ZNK11spirv_cross8Compiler14get_decorationENS_7TypedIDILNS_5TypesE0EEEN3spv10DecorationE(ptr noundef nonnull align 8 dereferenceable(3176) %11, i32 %29, i32 noundef 11)
  store i32 %30, ptr %8, align 4, !tbaa !26
  %31 = load i32, ptr %8, align 4, !tbaa !26
  %32 = icmp ne i32 %31, 12
  br i1 %32, label %33, label %37

33:                                               ; preds = %25
  %34 = load i32, ptr %8, align 4, !tbaa !26
  %35 = icmp ne i32 %34, 11
  br i1 %35, label %36, label %37

36:                                               ; preds = %33
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %65

37:                                               ; preds = %33, %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %38 = load ptr, ptr %6, align 8, !tbaa !5
  %39 = getelementptr inbounds %"struct.spirv_cross::SPIRExpression", ptr %38, i32 0, i32 12
  %40 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %39, i64 noundef 1) #6
  %41 = call noundef i32 @_ZNK11spirv_cross7TypedIDILNS_5TypesE0EEcvjEv(ptr noundef nonnull align 4 dereferenceable(4) %40)
  %42 = call noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_12SPIRConstantEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176) %11, i32 noundef %41)
  store ptr %42, ptr %10, align 8, !tbaa !5
  %43 = load ptr, ptr %10, align 8, !tbaa !5
  %44 = icmp ne ptr %43, null
  br i1 %44, label %46, label %45

45:                                               ; preds = %37
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %64

46:                                               ; preds = %37
  %47 = load i32, ptr %8, align 4, !tbaa !26
  %48 = icmp eq i32 %47, 12
  br i1 %48, label %49, label %53

49:                                               ; preds = %46
  %50 = load ptr, ptr %10, align 8, !tbaa !5
  %51 = call noundef i32 @_ZNK11spirv_cross12SPIRConstant6scalarEjj(ptr noundef nonnull align 8 dereferenceable(360) %50, i32 noundef 0, i32 noundef 0)
  %52 = icmp eq i32 %51, 1
  br i1 %52, label %62, label %53

53:                                               ; preds = %49, %46
  %54 = load i32, ptr %8, align 4, !tbaa !26
  %55 = icmp eq i32 %54, 11
  br i1 %55, label %56, label %60

56:                                               ; preds = %53
  %57 = load ptr, ptr %10, align 8, !tbaa !5
  %58 = call noundef i32 @_ZNK11spirv_cross12SPIRConstant6scalarEjj(ptr noundef nonnull align 8 dereferenceable(360) %57, i32 noundef 0, i32 noundef 0)
  %59 = icmp eq i32 %58, 3
  br label %60

60:                                               ; preds = %56, %53
  %61 = phi i1 [ false, %53 ], [ %59, %56 ]
  br label %62

62:                                               ; preds = %60, %49
  %63 = phi i1 [ true, %49 ], [ %61, %60 ]
  store i1 %63, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %64

64:                                               ; preds = %62, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %65

65:                                               ; preds = %64, %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %66

66:                                               ; preds = %65, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %67

67:                                               ; preds = %66, %13
  %68 = load i1, ptr %3, align 1
  ret i1 %68
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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 = { 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 #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 = !{!"int", !7, i64 0}
!11 = !{!12, !19, i64 58}
!12 = !{!"_ZTSN11spirv_cross14SPIRExpressionE", !13, i64 0, !14, i64 12, !15, i64 16, !18, i64 48, !14, i64 52, !19, i64 56, !19, i64 57, !19, i64 58, !19, i64 59, !20, i64 64, !20, i64 120, !20, i64 176, !10, i64 232}
!13 = !{!"_ZTSN11spirv_cross8IVariantE", !14, i64 8}
!14 = !{!"_ZTSN11spirv_cross7TypedIDILNS_5TypesE0EEE", !10, i64 0}
!15 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !16, i64 0, !17, i64 8, !7, i64 16}
!16 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!17 = !{!"long", !7, i64 0}
!18 = !{!"_ZTSN11spirv_cross7TypedIDILNS_5TypesE1EEE", !10, i64 0}
!19 = !{!"bool", !7, i64 0}
!20 = !{!"_ZTSN11spirv_cross11SmallVectorINS_7TypedIDILNS_5TypesE0EEELm8EEE", !21, i64 0, !17, i64 16, !22, i64 24}
!21 = !{!"_ZTSN11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEE", !6, i64 0, !17, i64 8}
!22 = !{!"_ZTSN11spirv_cross13AlignedBufferINS_7TypedIDILNS_5TypesE0EEELm8EEE", !7, i64 0}
!23 = !{i8 0, i8 2}
!24 = !{}
!25 = !{i64 0, i64 4, !9}
!26 = !{!27, !27, i64 0}
!27 = !{!"_ZTSN3spv7BuiltInE", !7, 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK11spirv_cross7TypedIDILNS_5TypesE0EEcvjEv(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

declare noundef i32 @_ZNK11spirv_cross8Compiler14get_decorationENS_7TypedIDILNS_5TypesE0EEEN3spv10DecorationE(ptr noundef nonnull align 8 dereferenceable(3176), i32, i32 noundef) local_unnamed_addr #1

declare noundef zeroext i1 @_ZNK11spirv_cross8Compiler25is_tessellating_trianglesEv(ptr noundef nonnull align 8 dereferenceable(3176)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_12SPIRConstantEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176), i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_14SPIRExpressionEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176), i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK11spirv_cross12SPIRConstant6scalarEjj(ptr noundef nonnull align 8 dereferenceable(360), i32 noundef, i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN11spirv_cross11CompilerMSL35is_out_of_bounds_tessellation_levelEj(ptr noundef nonnull align 8 dereferenceable(12482) %0, i32 noundef %1) local_unnamed_addr #2 align 2 {
  %3 = tail call noundef zeroext i1 @_ZNK11spirv_cross8Compiler25is_tessellating_trianglesEv(ptr noundef nonnull align 8 dereferenceable(3176) %0)
  br i1 %3, label %4, label %25

4:                                                ; preds = %2
  %5 = tail call noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_14SPIRExpressionEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176) %0, i32 noundef %1)
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %25, label %6

6:                                                ; preds = %4
  %7 = getelementptr inbounds i8, ptr %5, i64 58
  %8 = load i8, ptr %7, align 2, !tbaa !5, !range !21, !noundef !22
  %9 = trunc nuw i8 %8 to i1
  br i1 %9, label %10, label %25

10:                                               ; preds = %6
  %11 = getelementptr inbounds i8, ptr %5, i64 52
  %.sroa.0.0.copyload = load i32, ptr %11, align 4, !tbaa !23
  %12 = tail call noundef i32 @_ZNK11spirv_cross8Compiler14get_decorationENS_7TypedIDILNS_5TypesE0EEEN3spv10DecorationE(ptr noundef nonnull align 8 dereferenceable(3176) %0, i32 %.sroa.0.0.copyload, i32 noundef 11)
  %13 = add i32 %12, -13
  %or.cond = icmp ult i32 %13, -2
  br i1 %or.cond, label %25, label %14

14:                                               ; preds = %10
  %15 = getelementptr inbounds i8, ptr %5, i64 176
  %16 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %15, i64 noundef 1) #4
  %17 = tail call noundef i32 @_ZNK11spirv_cross7TypedIDILNS_5TypesE0EEcvjEv(ptr noundef nonnull align 4 dereferenceable(4) %16)
  %18 = tail call noundef ptr @_ZN11spirv_cross8Compiler9maybe_getINS_12SPIRConstantEEEPT_j(ptr noundef nonnull align 8 dereferenceable(3176) %0, i32 noundef %17)
  %.not16 = icmp eq ptr %18, null
  br i1 %.not16, label %25, label %19

19:                                               ; preds = %14
  %switch = icmp eq i32 %12, 12
  %20 = tail call noundef i32 @_ZNK11spirv_cross12SPIRConstant6scalarEjj(ptr noundef nonnull align 8 dereferenceable(360) %18, i32 noundef 0, i32 noundef 0)
  br i1 %switch, label %21, label %23

21:                                               ; preds = %19
  %22 = icmp eq i32 %20, 1
  br label %25

23:                                               ; preds = %19
  %24 = icmp eq i32 %20, 3
  br label %25

25:                                               ; preds = %21, %6, %4, %14, %23, %10, %2
  %.3 = phi i1 [ false, %2 ], [ false, %6 ], [ false, %4 ], [ false, %10 ], [ false, %14 ], [ %24, %23 ], [ %22, %21 ]
  ret i1 %.3
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 = { "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 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 = { 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 #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, !17, i64 58}
!6 = !{!"_ZTSN11spirv_cross14SPIRExpressionE", !7, i64 0, !8, i64 12, !12, i64 16, !16, i64 48, !8, i64 52, !17, i64 56, !17, i64 57, !17, i64 58, !17, i64 59, !18, i64 64, !18, i64 120, !18, i64 176, !9, i64 232}
!7 = !{!"_ZTSN11spirv_cross8IVariantE", !8, i64 8}
!8 = !{!"_ZTSN11spirv_cross7TypedIDILNS_5TypesE0EEE", !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !13, i64 0, !15, i64 8, !10, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !14, i64 0}
!14 = !{!"any pointer", !10, i64 0}
!15 = !{!"long", !10, i64 0}
!16 = !{!"_ZTSN11spirv_cross7TypedIDILNS_5TypesE1EEE", !9, i64 0}
!17 = !{!"bool", !10, i64 0}
!18 = !{!"_ZTSN11spirv_cross11SmallVectorINS_7TypedIDILNS_5TypesE0EEELm8EEE", !19, i64 0, !15, i64 16, !20, i64 24}
!19 = !{!"_ZTSN11spirv_cross10VectorViewINS_7TypedIDILNS_5TypesE0EEEEE", !14, i64 0, !15, i64 8}
!20 = !{!"_ZTSN11spirv_cross13AlignedBufferINS_7TypedIDILNS_5TypesE0EEELm8EEE", !10, i64 0}
!21 = !{i8 0, i8 2}
!22 = !{}
!23 = !{!9, !9, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass