; LLVM IR from huawei-noah/bolt :: model_tools/src/model_data_type_converter.ll (Z23getMaxQuantizationErrorPhi)

; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl" }
%"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl" = type { %"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { i8 }

; 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 uwtable
declare dso_local void @_Z26ws_datatype_converter_int8PhS_iPf(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z23getMaxQuantizationErrorPhi(ptr noundef %0, i32 noundef %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca float, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca %"class.std::allocator.3", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca float, align 4
  %12 = alloca float, align 4
  %13 = alloca i32, align 4
  %14 = alloca float, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = icmp sle i32 %15, 0
  br i1 %16, label %17, label %18

17:                                               ; preds = %2
  store float 0.000000e+00, ptr %3, align 4
  br label %101

18:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %19, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #3
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #3
  call void @_ZNSaIaEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  invoke void @_ZNSt6vectorIaSaIaEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %21, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %22 unwind label %32

22:                                               ; preds = %18
  call void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store float -1.000000e+00, ptr %11, align 4, !tbaa !11
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = call noundef ptr @_ZNSt6vectorIaSaIaEE4dataEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  %25 = load i32, ptr %5, align 4, !tbaa !9
  invoke void @_Z26ws_datatype_converter_int8PhS_iPf(ptr noundef %23, ptr noundef %24, i32 noundef %25, ptr noundef %11)
          to label %26 unwind label %36

26:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  store float 0.000000e+00, ptr %12, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %27

27:                                               ; preds = %95, %26
  %28 = load i32, ptr %13, align 4, !tbaa !9
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %40, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %98

32:                                               ; preds = %18
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %9, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #3
  br label %100

36:                                               ; preds = %22
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %9, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  br label %100

40:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  %42 = load i32, ptr %13, align 4, !tbaa !9
  %43 = sext i32 %42 to i64
  %44 = getelementptr inbounds float, ptr %41, i64 %43
  %45 = load float, ptr %44, align 4, !tbaa !11
  %46 = load i32, ptr %13, align 4, !tbaa !9
  %47 = sext i32 %46 to i64
  %48 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %47) #3
  %49 = load i8, ptr %48, align 1, !tbaa !13
  %50 = sitofp i8 %49 to float
  %51 = load float, ptr %11, align 4, !tbaa !11
  %52 = fdiv float %50, %51
  %53 = fsub float %45, %52
  %54 = fcmp ogt float %53, 0.000000e+00
  br i1 %54, label %55, label %69

55:                                               ; preds = %40
  %56 = load ptr, ptr %6, align 8, !tbaa !5
  %57 = load i32, ptr %13, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds float, ptr %56, i64 %58
  %60 = load float, ptr %59, align 4, !tbaa !11
  %61 = load i32, ptr %13, align 4, !tbaa !9
  %62 = sext i32 %61 to i64
  %63 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %62) #3
  %64 = load i8, ptr %63, align 1, !tbaa !13
  %65 = sitofp i8 %64 to float
  %66 = load float, ptr %11, align 4, !tbaa !11
  %67 = fdiv float %65, %66
  %68 = fsub float %60, %67
  br label %84

69:                                               ; preds = %40
  %70 = load ptr, ptr %6, align 8, !tbaa !5
  %71 = load i32, ptr %13, align 4, !tbaa !9
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds float, ptr %70, i64 %72
  %74 = load float, ptr %73, align 4, !tbaa !11
  %75 = load i32, ptr %13, align 4, !tbaa !9
  %76 = sext i32 %75 to i64
  %77 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %76) #3
  %78 = load i8, ptr %77, align 1, !tbaa !13
  %79 = sitofp i8 %78 to float
  %80 = load float, ptr %11, align 4, !tbaa !11
  %81 = fdiv float %79, %80
  %82 = fsub float %74, %81
  %83 = fmul float -1.000000e+00, %82
  br label %84

84:                                               ; preds = %69, %55
  %85 = phi float [ %68, %55 ], [ %83, %69 ]
  store float %85, ptr %14, align 4, !tbaa !11
  %86 = load float, ptr %14, align 4, !tbaa !11
  %87 = load float, ptr %12, align 4, !tbaa !11
  %88 = fcmp ogt float %86, %87
  br i1 %88, label %89, label %91

89:                                               ; preds = %84
  %90 = load float, ptr %14, align 4, !tbaa !11
  br label %93

91:                                               ; preds = %84
  %92 = load float, ptr %12, align 4, !tbaa !11
  br label %93

93:                                               ; preds = %91, %89
  %94 = phi float [ %90, %89 ], [ %92, %91 ]
  store float %94, ptr %12, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  br label %95

95:                                               ; preds = %93
  %96 = load i32, ptr %13, align 4, !tbaa !9
  %97 = add nsw i32 %96, 1
  store i32 %97, ptr %13, align 4, !tbaa !9
  br label %27, !llvm.loop !14

98:                                               ; preds = %31
  %99 = load float, ptr %12, align 4, !tbaa !11
  store float %99, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %101

100:                                              ; preds = %36, %32
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %103

101:                                              ; preds = %98, %17
  %102 = load float, ptr %3, align 4
  ret float %102

103:                                              ; preds = %100
  %104 = load ptr, ptr %9, align 8
  %105 = load i32, ptr %10, align 4
  %106 = insertvalue { ptr, i32 } poison, ptr %104, 0
  %107 = insertvalue { ptr, i32 } %106, i32 %105, 1
  resume { ptr, i32 } %107
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIaEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIaSaIaEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNSt6vectorIaSaIaEE4dataEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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 = { 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 = { 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, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl" }
%"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl" = type { %"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<signed char, std::allocator<signed char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { 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 uwtable
declare dso_local void @_Z26ws_datatype_converter_int8PhS_iPf(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z23getMaxQuantizationErrorPhi(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator.3", align 1
  %5 = alloca float, align 4
  %6 = icmp slt i32 %1, 1
  br i1 %6, label %35, label %7

7:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #3
  %8 = zext nneg i32 %1 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #3
  call void @_ZNSaIaEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  invoke void @_ZNSt6vectorIaSaIaEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %8, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %9 unwind label %11

9:                                                ; preds = %7
  call void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  store float -1.000000e+00, ptr %5, align 4, !tbaa !5
  %10 = call noundef ptr @_ZNSt6vectorIaSaIaEE4dataEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  invoke void @_Z26ws_datatype_converter_int8PhS_iPf(ptr noundef %0, ptr noundef %10, i32 noundef %1, ptr noundef nonnull %5)
          to label %.lr.ph unwind label %13

._crit_edge:                                      ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  call void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  br label %35

11:                                               ; preds = %7
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #3
  br label %34

13:                                               ; preds = %9
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  call void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  br label %34

.lr.ph:                                           ; preds = %9, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %9 ]
  %.02530 = phi float [ %33, %.lr.ph ], [ 0.000000e+00, %9 ]
  %15 = getelementptr inbounds float, ptr %0, i64 %indvars.iv
  %16 = load float, ptr %15, align 4, !tbaa !5
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #3
  %18 = load i8, ptr %17, align 1, !tbaa !9
  %19 = sitofp i8 %18 to float
  %20 = load float, ptr %5, align 4, !tbaa !5
  %21 = fdiv float %19, %20
  %22 = fcmp ogt float %16, %21
  %23 = load float, ptr %15, align 4, !tbaa !5
  %24 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #3
  %25 = load i8, ptr %24, align 1, !tbaa !9
  %26 = sitofp i8 %25 to float
  %27 = load float, ptr %5, align 4, !tbaa !5
  %28 = fdiv float %26, %27
  %29 = fsub float %23, %28
  %30 = fneg float %29
  %31 = select i1 %22, float %29, float %30
  %32 = fcmp ogt float %31, %.02530
  %33 = select i1 %32, float %31, float %.02530
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %8
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

34:                                               ; preds = %13, %11
  %.pn = phi { ptr, i32 } [ %14, %13 ], [ %12, %11 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  resume { ptr, i32 } %.pn

35:                                               ; preds = %2, %._crit_edge
  %.0 = phi float [ %33, %._crit_edge ], [ 0.000000e+00, %2 ]
  ret float %.0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIaEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIaSaIaEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNSt6vectorIaSaIaEE4dataEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIaSaIaEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIaSaIaEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIaED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { 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 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SCCPPass,SROAPass,SimplifyCFGPass