; LLVM IR from cruppstahl/upscaledb :: tools/ups_bench/generator_parser.ll (ZN15ParserGenerator4openEv)

; 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.Generator = type <{ ptr, i32, [4 x i8], ptr, ptr, i32, [4 x i8], %struct.ups_record_t, ptr, [4 x i32], i8, [7 x i8] }>
%struct.ups_record_t = type { i32, ptr, i32 }
%struct.Configuration = type <{ i8, [3 x i8], i32, i8, i8, i8, [5 x i8], %"class.std::__cxx11::basic_string", i8, [3 x i8], i32, i32, i32, i8, [3 x i8], i32, i64, i64, i64, i64, i32, i8, [3 x i8], i32, i32, i32, i32, i8, i8, [2 x i8], i32, i8, [3 x i8], i32, i8, i8, i8, i8, i8, [3 x i8], i32, i32, i32, i8, i8, i8, i8, i32, i32, %"class.std::__cxx11::basic_string", i32, i32, i32, i8, i8, [2 x i8], i32, i32, i32, i8, i8, i8, i8, i32, i8, i8, [2 x i8] }>
%"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.ParserGenerator = type { %class.Generator.base, ptr, ptr, ptr, i8, %struct.Metrics, %"class.std::vector", i32, %struct.Timer, i32, ptr, %"class.std::vector" }
%class.Generator.base = type <{ ptr, i32, [4 x i8], ptr, ptr, i32, [4 x i8], %struct.ups_record_t, ptr, [4 x i32], i8 }>
%struct.Metrics = type { ptr, i64, i64, i64, i64, i64, i64, i64, double, double, double, double, double, double, double, double, double, double, double, double, double, %struct.ups_env_metrics_t }
%struct.ups_env_metrics_t = type { i16, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, %struct.btree_metrics_t, %struct.btree_metrics_t, i32 }
%struct.btree_metrics_t = type { i16, i64, i64, i64, i32, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t, %struct.min_max_avg_u32_t }
%struct.min_max_avg_u32_t = type { i32, i32, i32, i32, i32 }
%struct.Timer = type { %"class.boost::chrono::time_point" }
%"class.boost::chrono::time_point" = type { %"class.boost::chrono::duration" }
%"class.boost::chrono::duration" = type { i64 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

declare noundef ptr @_ZN8Database13cursor_createEv(ptr noundef nonnull align 8 dereferenceable(24)) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15ParserGenerator4openEv(ptr noundef nonnull align 8 dereferenceable(1040) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 4
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  call void @_ZN8Database8open_envEv(ptr noundef nonnull align 8 dereferenceable(24) %5)
  %6 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 4
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 1
  %9 = load i32, ptr %8, align 8, !tbaa !14
  %10 = call noundef i32 @_ZN8Database7open_dbEi(ptr noundef nonnull align 8 dereferenceable(24) %7, i32 noundef %9)
  %11 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 5
  store i32 %10, ptr %11, align 8, !tbaa !15
  %12 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 3
  %13 = load ptr, ptr %12, align 8, !tbaa !16
  %14 = getelementptr inbounds %struct.Configuration, ptr %13, i32 0, i32 43
  %15 = load i8, ptr %14, align 4, !tbaa !17, !range !22, !noundef !23
  %16 = trunc i8 %15 to i1
  br i1 %16, label %17, label %22

17:                                               ; preds = %1
  %18 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 4
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = call noundef ptr @_ZN8Database13cursor_createEv(ptr noundef nonnull align 8 dereferenceable(24) %19)
  %21 = getelementptr inbounds %class.ParserGenerator, ptr %3, i32 0, i32 2
  store ptr %20, ptr %21, align 8, !tbaa !24
  br label %22

22:                                               ; preds = %17, %1
  %23 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 5
  %24 = load i32, ptr %23, align 8, !tbaa !15
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %28

26:                                               ; preds = %22
  %27 = getelementptr inbounds %class.ParserGenerator, ptr %3, i32 0, i32 4
  store i8 0, ptr %27, align 8, !tbaa !39
  br label %28

28:                                               ; preds = %26, %22
  %29 = getelementptr inbounds %class.ParserGenerator, ptr %3, i32 0, i32 5
  %30 = getelementptr inbounds %struct.Metrics, ptr %29, i32 0, i32 5
  %31 = load i64, ptr %30, align 8, !tbaa !40
  %32 = add i64 %31, 1
  store i64 %32, ptr %30, align 8, !tbaa !40
  %33 = getelementptr inbounds %class.Generator, ptr %3, i32 0, i32 10
  store i8 1, ptr %33, align 8, !tbaa !41
  ret void
}

declare void @_ZN8Database8open_envEv(ptr noundef nonnull align 8 dereferenceable(24)) #0

declare noundef i32 @_ZN8Database7open_dbEi(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) #0

attributes #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" }

!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, !6, i64 24}
!10 = !{!"_ZTS9Generator", !11, i64 8, !6, i64 16, !6, i64 24, !11, i64 32, !12, i64 40, !6, i64 64, !7, i64 72, !13, i64 88}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTS12ups_record_t", !11, i64 0, !6, i64 8, !11, i64 16}
!13 = !{!"bool", !7, i64 0}
!14 = !{!10, !11, i64 8}
!15 = !{!10, !11, i64 32}
!16 = !{!10, !6, i64 16}
!17 = !{!18, !13, i64 164}
!18 = !{!"_ZTS13Configuration", !13, i64 0, !11, i64 4, !13, i64 8, !13, i64 9, !13, i64 10, !19, i64 16, !13, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !13, i64 64, !11, i64 68, !21, i64 72, !21, i64 80, !21, i64 88, !21, i64 96, !11, i64 104, !13, i64 108, !11, i64 112, !11, i64 116, !11, i64 120, !11, i64 124, !13, i64 128, !13, i64 129, !11, i64 132, !13, i64 136, !11, i64 140, !13, i64 144, !13, i64 145, !13, i64 146, !13, i64 147, !13, i64 148, !11, i64 152, !11, i64 156, !11, i64 160, !13, i64 164, !13, i64 165, !13, i64 166, !11, i64 168, !11, i64 172, !19, i64 176, !11, i64 208, !11, i64 212, !11, i64 216, !13, i64 220, !13, i64 221, !11, i64 224, !11, i64 228, !11, i64 232, !13, i64 236, !13, i64 237, !13, i64 238, !13, i64 239, !11, i64 240, !13, i64 244, !13, i64 245}
!19 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !20, i64 0, !21, i64 8, !7, i64 16}
!20 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!21 = !{!"long", !7, i64 0}
!22 = !{i8 0, i8 2}
!23 = !{}
!24 = !{!25, !6, i64 104}
!25 = !{!"_ZTS15ParserGenerator", !10, i64 0, !6, i64 96, !6, i64 104, !6, i64 112, !13, i64 120, !26, i64 128, !32, i64 960, !11, i64 984, !36, i64 992, !11, i64 1000, !6, i64 1008, !32, i64 1016}
!26 = !{!"_ZTS7Metrics", !6, i64 0, !21, i64 8, !21, i64 16, !21, i64 24, !21, i64 32, !21, i64 40, !21, i64 48, !21, i64 56, !27, i64 64, !27, i64 72, !27, i64 80, !27, i64 88, !27, i64 96, !27, i64 104, !27, i64 112, !27, i64 120, !27, i64 128, !27, i64 136, !27, i64 144, !27, i64 152, !27, i64 160, !28, i64 168}
!27 = !{!"double", !7, i64 0}
!28 = !{!"_ZTS17ups_env_metrics_t", !29, i64 0, !21, i64 8, !21, i64 16, !21, i64 24, !21, i64 32, !21, i64 40, !21, i64 48, !21, i64 56, !21, i64 64, !21, i64 72, !21, i64 80, !21, i64 88, !21, i64 96, !21, i64 104, !21, i64 112, !21, i64 120, !21, i64 128, !21, i64 136, !21, i64 144, !21, i64 152, !21, i64 160, !21, i64 168, !21, i64 176, !21, i64 184, !21, i64 192, !21, i64 200, !21, i64 208, !21, i64 216, !30, i64 224, !30, i64 440, !11, i64 656}
!29 = !{!"short", !7, i64 0}
!30 = !{!"_ZTS15btree_metrics_t", !29, i64 0, !21, i64 8, !21, i64 16, !21, i64 24, !11, i64 32, !31, i64 36, !31, i64 56, !31, i64 76, !31, i64 96, !31, i64 116, !31, i64 136, !31, i64 156, !31, i64 176, !31, i64 196}
!31 = !{!"_ZTS17min_max_avg_u32_t", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16}
!32 = !{!"_ZTSSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE", !33, i64 0}
!33 = !{!"_ZTSSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE", !34, i64 0}
!34 = !{!"_ZTSNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12_Vector_implE", !35, i64 0}
!35 = !{!"_ZTSNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!36 = !{!"_ZTS5TimerIN5boost6chrono12system_clockEE", !37, i64 0}
!37 = !{!"_ZTSN5boost6chrono10time_pointINS0_12system_clockENS0_8durationIlNS_5ratioILl1ELl1000000000EEEEEEE", !38, i64 0}
!38 = !{!"_ZTSN5boost6chrono8durationIlNS_5ratioILl1ELl1000000000EEEEE", !21, i64 0}
!39 = !{!25, !13, i64 120}
!40 = !{!25, !21, i64 168}
!41 = !{!10, !13, i64 88}


; 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"

declare noundef ptr @_ZN8Database13cursor_createEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15ParserGenerator4openEv(ptr nocapture noundef nonnull align 8 dereferenceable(1040) %0) unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  tail call void @_ZN8Database8open_envEv(ptr noundef nonnull align 8 dereferenceable(24) %3)
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i32, ptr %5, align 8, !tbaa !13
  %7 = tail call noundef i32 @_ZN8Database7open_dbEi(ptr noundef nonnull align 8 dereferenceable(24) %4, i32 noundef %6)
  %8 = getelementptr inbounds i8, ptr %0, i64 32
  store i32 %7, ptr %8, align 8, !tbaa !14
  %9 = getelementptr inbounds i8, ptr %0, i64 16
  %10 = load ptr, ptr %9, align 8, !tbaa !15
  %11 = getelementptr inbounds i8, ptr %10, i64 164
  %12 = load i8, ptr %11, align 4, !tbaa !16, !range !21, !noundef !22
  %13 = trunc nuw i8 %12 to i1
  br i1 %13, label %14, label %18

14:                                               ; preds = %1
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = tail call noundef ptr @_ZN8Database13cursor_createEv(ptr noundef nonnull align 8 dereferenceable(24) %15)
  %17 = getelementptr inbounds i8, ptr %0, i64 104
  store ptr %16, ptr %17, align 8, !tbaa !23
  %.pre = load i32, ptr %8, align 8, !tbaa !14
  br label %18

18:                                               ; preds = %14, %1
  %19 = phi i32 [ %.pre, %14 ], [ %7, %1 ]
  %.not = icmp eq i32 %19, 0
  br i1 %.not, label %22, label %20

20:                                               ; preds = %18
  %21 = getelementptr inbounds i8, ptr %0, i64 120
  store i8 0, ptr %21, align 8, !tbaa !38
  br label %22

22:                                               ; preds = %20, %18
  %23 = getelementptr inbounds i8, ptr %0, i64 168
  %24 = load i64, ptr %23, align 8, !tbaa !39
  %25 = add i64 %24, 1
  store i64 %25, ptr %23, align 8, !tbaa !39
  %26 = getelementptr inbounds i8, ptr %0, i64 88
  store i8 1, ptr %26, align 8, !tbaa !40
  ret void
}

declare void @_ZN8Database8open_envEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

declare noundef i32 @_ZN8Database7open_dbEi(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) local_unnamed_addr #0

attributes #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" }

!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 24}
!6 = !{!"_ZTS9Generator", !7, i64 8, !10, i64 16, !10, i64 24, !7, i64 32, !11, i64 40, !10, i64 64, !8, i64 72, !12, i64 88}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTS12ups_record_t", !7, i64 0, !10, i64 8, !7, i64 16}
!12 = !{!"bool", !8, i64 0}
!13 = !{!6, !7, i64 8}
!14 = !{!6, !7, i64 32}
!15 = !{!6, !10, i64 16}
!16 = !{!17, !12, i64 164}
!17 = !{!"_ZTS13Configuration", !12, i64 0, !7, i64 4, !12, i64 8, !12, i64 9, !12, i64 10, !18, i64 16, !12, i64 48, !7, i64 52, !7, i64 56, !7, i64 60, !12, i64 64, !7, i64 68, !20, i64 72, !20, i64 80, !20, i64 88, !20, i64 96, !7, i64 104, !12, i64 108, !7, i64 112, !7, i64 116, !7, i64 120, !7, i64 124, !12, i64 128, !12, i64 129, !7, i64 132, !12, i64 136, !7, i64 140, !12, i64 144, !12, i64 145, !12, i64 146, !12, i64 147, !12, i64 148, !7, i64 152, !7, i64 156, !7, i64 160, !12, i64 164, !12, i64 165, !12, i64 166, !7, i64 168, !7, i64 172, !18, i64 176, !7, i64 208, !7, i64 212, !7, i64 216, !12, i64 220, !12, i64 221, !7, i64 224, !7, i64 228, !7, i64 232, !12, i64 236, !12, i64 237, !12, i64 238, !12, i64 239, !7, i64 240, !12, i64 244, !12, i64 245}
!18 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !19, i64 0, !20, i64 8, !8, i64 16}
!19 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !10, i64 0}
!20 = !{!"long", !8, i64 0}
!21 = !{i8 0, i8 2}
!22 = !{}
!23 = !{!24, !10, i64 104}
!24 = !{!"_ZTS15ParserGenerator", !6, i64 0, !10, i64 96, !10, i64 104, !10, i64 112, !12, i64 120, !25, i64 128, !31, i64 960, !7, i64 984, !35, i64 992, !7, i64 1000, !10, i64 1008, !31, i64 1016}
!25 = !{!"_ZTS7Metrics", !10, i64 0, !20, i64 8, !20, i64 16, !20, i64 24, !20, i64 32, !20, i64 40, !20, i64 48, !20, i64 56, !26, i64 64, !26, i64 72, !26, i64 80, !26, i64 88, !26, i64 96, !26, i64 104, !26, i64 112, !26, i64 120, !26, i64 128, !26, i64 136, !26, i64 144, !26, i64 152, !26, i64 160, !27, i64 168}
!26 = !{!"double", !8, i64 0}
!27 = !{!"_ZTS17ups_env_metrics_t", !28, i64 0, !20, i64 8, !20, i64 16, !20, i64 24, !20, i64 32, !20, i64 40, !20, i64 48, !20, i64 56, !20, i64 64, !20, i64 72, !20, i64 80, !20, i64 88, !20, i64 96, !20, i64 104, !20, i64 112, !20, i64 120, !20, i64 128, !20, i64 136, !20, i64 144, !20, i64 152, !20, i64 160, !20, i64 168, !20, i64 176, !20, i64 184, !20, i64 192, !20, i64 200, !20, i64 208, !20, i64 216, !29, i64 224, !29, i64 440, !7, i64 656}
!28 = !{!"short", !8, i64 0}
!29 = !{!"_ZTS15btree_metrics_t", !28, i64 0, !20, i64 8, !20, i64 16, !20, i64 24, !7, i64 32, !30, i64 36, !30, i64 56, !30, i64 76, !30, i64 96, !30, i64 116, !30, i64 136, !30, i64 156, !30, i64 176, !30, i64 196}
!30 = !{!"_ZTS17min_max_avg_u32_t", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16}
!31 = !{!"_ZTSSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE", !32, i64 0}
!32 = !{!"_ZTSSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE", !33, i64 0}
!33 = !{!"_ZTSNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12_Vector_implE", !34, i64 0}
!34 = !{!"_ZTSNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_Vector_impl_dataE", !10, i64 0, !10, i64 8, !10, i64 16}
!35 = !{!"_ZTS5TimerIN5boost6chrono12system_clockEE", !36, i64 0}
!36 = !{!"_ZTSN5boost6chrono10time_pointINS0_12system_clockENS0_8durationIlNS_5ratioILl1ELl1000000000EEEEEEE", !37, i64 0}
!37 = !{!"_ZTSN5boost6chrono8durationIlNS_5ratioILl1ELl1000000000EEEEE", !20, i64 0}
!38 = !{!24, !12, i64 120}
!39 = !{!24, !20, i64 168}
!40 = !{!6, !12, i64 88}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass