; LLVM IR from generalized-intelligence/GAAS :: deprecated/algorithms/scene_retrieving/src/nlohmann_json/benchmarks/thirdparty/146cd4d1 (ZN9benchmark8internal21ParseCommandLineFlagsEPiPPc)

; 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::__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.std::initializer_list" = type { ptr, i64 }

@FLAGS_benchmark_list_tests = external dso_local global i8, align 1
@_Z22FLAGS_benchmark_filterB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@FLAGS_benchmark_min_time = external dso_local global double, align 8
@FLAGS_benchmark_repetitions = external dso_local global i32, align 4
@FLAGS_benchmark_report_aggregates_only = external dso_local global i8, align 1
@_Z22FLAGS_benchmark_formatB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str.4 = external hidden unnamed_addr constant [8 x i8], align 1
@_Z26FLAGS_benchmark_out_formatB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str.6 = external hidden unnamed_addr constant [5 x i8], align 1
@_Z19FLAGS_benchmark_outB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_Z21FLAGS_benchmark_colorB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@FLAGS_benchmark_counters_tabular = external dso_local global i8, align 1
@FLAGS_v = external dso_local global i32, align 4
@_ZN9benchmark17BenchmarkReporter7Context15executable_nameE = external global ptr, align 8
@.str.26 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.30 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.31 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.32 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.33 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.34 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.35 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.36 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.37 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.38 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.39 = external hidden unnamed_addr constant [4 x i8], align 1

; 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: mustprogress nounwind uwtable
declare noundef zeroext i1 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9benchmark8internal17PrintUsageAndExitEv() #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9benchmark8internal21ParseCommandLineFlagsEPiPPc(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca %"class.std::initializer_list", align 8
  %10 = alloca [2 x ptr], align 8
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds ptr, ptr %14, i64 0
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  store ptr %16, ptr @_ZN9benchmark17BenchmarkReporter7Context15executable_nameE, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 1, ptr %5, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %146, %2
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = icmp slt i32 %18, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %17
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %149

23:                                               ; preds = %17
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds ptr, ptr %24, i64 %26
  %28 = load ptr, ptr %27, align 8, !tbaa !5
  %29 = call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %28, ptr noundef @.str.26, ptr noundef @FLAGS_benchmark_list_tests)
  br i1 %29, label %107, label %30

30:                                               ; preds = %23
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds ptr, ptr %31, i64 %33
  %35 = load ptr, ptr %34, align 8, !tbaa !5
  %36 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %35, ptr noundef @.str.27, ptr noundef @_Z22FLAGS_benchmark_filterB5cxx11)
  br i1 %36, label %107, label %37

37:                                               ; preds = %30
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = load i32, ptr %5, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds ptr, ptr %38, i64 %40
  %42 = load ptr, ptr %41, align 8, !tbaa !5
  %43 = call noundef zeroext i1 @_ZN9benchmark15ParseDoubleFlagEPKcS1_Pd(ptr noundef %42, ptr noundef @.str.28, ptr noundef @FLAGS_benchmark_min_time)
  br i1 %43, label %107, label %44

44:                                               ; preds = %37
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = load i32, ptr %5, align 4, !tbaa !9
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds ptr, ptr %45, i64 %47
  %49 = load ptr, ptr %48, align 8, !tbaa !5
  %50 = call noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef %49, ptr noundef @.str.29, ptr noundef @FLAGS_benchmark_repetitions)
  br i1 %50, label %107, label %51

51:                                               ; preds = %44
  %52 = load ptr, ptr %4, align 8, !tbaa !5
  %53 = load i32, ptr %5, align 4, !tbaa !9
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds ptr, ptr %52, i64 %54
  %56 = load ptr, ptr %55, align 8, !tbaa !5
  %57 = call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %56, ptr noundef @.str.30, ptr noundef @FLAGS_benchmark_report_aggregates_only)
  br i1 %57, label %107, label %58

58:                                               ; preds = %51
  %59 = load ptr, ptr %4, align 8, !tbaa !5
  %60 = load i32, ptr %5, align 4, !tbaa !9
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds ptr, ptr %59, i64 %61
  %63 = load ptr, ptr %62, align 8, !tbaa !5
  %64 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %63, ptr noundef @.str.31, ptr noundef @_Z22FLAGS_benchmark_formatB5cxx11)
  br i1 %64, label %107, label %65

65:                                               ; preds = %58
  %66 = load ptr, ptr %4, align 8, !tbaa !5
  %67 = load i32, ptr %5, align 4, !tbaa !9
  %68 = sext i32 %67 to i64
  %69 = getelementptr inbounds ptr, ptr %66, i64 %68
  %70 = load ptr, ptr %69, align 8, !tbaa !5
  %71 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %70, ptr noundef @.str.32, ptr noundef @_Z19FLAGS_benchmark_outB5cxx11)
  br i1 %71, label %107, label %72

72:                                               ; preds = %65
  %73 = load ptr, ptr %4, align 8, !tbaa !5
  %74 = load i32, ptr %5, align 4, !tbaa !9
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds ptr, ptr %73, i64 %75
  %77 = load ptr, ptr %76, align 8, !tbaa !5
  %78 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %77, ptr noundef @.str.33, ptr noundef @_Z26FLAGS_benchmark_out_formatB5cxx11)
  br i1 %78, label %107, label %79

79:                                               ; preds = %72
  %80 = load ptr, ptr %4, align 8, !tbaa !5
  %81 = load i32, ptr %5, align 4, !tbaa !9
  %82 = sext i32 %81 to i64
  %83 = getelementptr inbounds ptr, ptr %80, i64 %82
  %84 = load ptr, ptr %83, align 8, !tbaa !5
  %85 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %84, ptr noundef @.str.34, ptr noundef @_Z21FLAGS_benchmark_colorB5cxx11)
  br i1 %85, label %107, label %86

86:                                               ; preds = %79
  %87 = load ptr, ptr %4, align 8, !tbaa !5
  %88 = load i32, ptr %5, align 4, !tbaa !9
  %89 = sext i32 %88 to i64
  %90 = getelementptr inbounds ptr, ptr %87, i64 %89
  %91 = load ptr, ptr %90, align 8, !tbaa !5
  %92 = call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %91, ptr noundef @.str.35, ptr noundef @_Z21FLAGS_benchmark_colorB5cxx11)
  br i1 %92, label %107, label %93

93:                                               ; preds = %86
  %94 = load ptr, ptr %4, align 8, !tbaa !5
  %95 = load i32, ptr %5, align 4, !tbaa !9
  %96 = sext i32 %95 to i64
  %97 = getelementptr inbounds ptr, ptr %94, i64 %96
  %98 = load ptr, ptr %97, align 8, !tbaa !5
  %99 = call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %98, ptr noundef @.str.36, ptr noundef @FLAGS_benchmark_counters_tabular)
  br i1 %99, label %107, label %100

100:                                              ; preds = %93
  %101 = load ptr, ptr %4, align 8, !tbaa !5
  %102 = load i32, ptr %5, align 4, !tbaa !9
  %103 = sext i32 %102 to i64
  %104 = getelementptr inbounds ptr, ptr %101, i64 %103
  %105 = load ptr, ptr %104, align 8, !tbaa !5
  %106 = call noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef %105, ptr noundef @.str.37, ptr noundef @FLAGS_v)
  br i1 %106, label %107, label %136

107:                                              ; preds = %100, %93, %86, %79, %72, %65, %58, %51, %44, %37, %30, %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %108 = load i32, ptr %5, align 4, !tbaa !9
  store i32 %108, ptr %7, align 4, !tbaa !9
  br label %109

109:                                              ; preds = %127, %107
  %110 = load i32, ptr %7, align 4, !tbaa !9
  %111 = load ptr, ptr %3, align 8, !tbaa !5
  %112 = load i32, ptr %111, align 4, !tbaa !9
  %113 = sub nsw i32 %112, 1
  %114 = icmp ne i32 %110, %113
  br i1 %114, label %116, label %115

115:                                              ; preds = %109
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %130

116:                                              ; preds = %109
  %117 = load ptr, ptr %4, align 8, !tbaa !5
  %118 = load i32, ptr %7, align 4, !tbaa !9
  %119 = add nsw i32 %118, 1
  %120 = sext i32 %119 to i64
  %121 = getelementptr inbounds ptr, ptr %117, i64 %120
  %122 = load ptr, ptr %121, align 8, !tbaa !5
  %123 = load ptr, ptr %4, align 8, !tbaa !5
  %124 = load i32, ptr %7, align 4, !tbaa !9
  %125 = sext i32 %124 to i64
  %126 = getelementptr inbounds ptr, ptr %123, i64 %125
  store ptr %122, ptr %126, align 8, !tbaa !5
  br label %127

127:                                              ; preds = %116
  %128 = load i32, ptr %7, align 4, !tbaa !9
  %129 = add nsw i32 %128, 1
  store i32 %129, ptr %7, align 4, !tbaa !9
  br label %109, !llvm.loop !11

130:                                              ; preds = %115
  %131 = load ptr, ptr %3, align 8, !tbaa !5
  %132 = load i32, ptr %131, align 4, !tbaa !9
  %133 = add nsw i32 %132, -1
  store i32 %133, ptr %131, align 4, !tbaa !9
  %134 = load i32, ptr %5, align 4, !tbaa !9
  %135 = add nsw i32 %134, -1
  store i32 %135, ptr %5, align 4, !tbaa !9
  br label %145

136:                                              ; preds = %100
  %137 = load ptr, ptr %4, align 8, !tbaa !5
  %138 = load i32, ptr %5, align 4, !tbaa !9
  %139 = sext i32 %138 to i64
  %140 = getelementptr inbounds ptr, ptr %137, i64 %139
  %141 = load ptr, ptr %140, align 8, !tbaa !5
  %142 = call noundef zeroext i1 @_ZN9benchmark6IsFlagEPKcS1_(ptr noundef %141, ptr noundef @.str.38)
  br i1 %142, label %143, label %144

143:                                              ; preds = %136
  call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %144

144:                                              ; preds = %143, %136
  br label %145

145:                                              ; preds = %144, %130
  br label %146

146:                                              ; preds = %145
  %147 = load i32, ptr %5, align 4, !tbaa !9
  %148 = add nsw i32 %147, 1
  store i32 %148, ptr %5, align 4, !tbaa !9
  br label %17, !llvm.loop !13

149:                                              ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #5
  store ptr @_Z22FLAGS_benchmark_formatB5cxx11, ptr %10, align 8, !tbaa !5
  %150 = getelementptr inbounds ptr, ptr %10, i64 1
  store ptr @_Z26FLAGS_benchmark_out_formatB5cxx11, ptr %150, align 8, !tbaa !5
  %151 = getelementptr inbounds %"class.std::initializer_list", ptr %9, i32 0, i32 0
  store ptr %10, ptr %151, align 8, !tbaa !14
  %152 = getelementptr inbounds %"class.std::initializer_list", ptr %9, i32 0, i32 1
  store i64 2, ptr %152, align 8, !tbaa !17
  store ptr %9, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %153 = load ptr, ptr %8, align 8, !tbaa !5
  %154 = call noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16) %153) #5
  store ptr %154, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %155 = load ptr, ptr %8, align 8, !tbaa !5
  %156 = call noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE3endEv(ptr noundef nonnull align 8 dereferenceable(16) %155) #5
  store ptr %156, ptr %12, align 8, !tbaa !5
  br label %157

157:                                              ; preds = %175, %149
  %158 = load ptr, ptr %11, align 8, !tbaa !5
  %159 = load ptr, ptr %12, align 8, !tbaa !5
  %160 = icmp ne ptr %158, %159
  br i1 %160, label %162, label %161

161:                                              ; preds = %157
  store i32 8, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %178

162:                                              ; preds = %157
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  %163 = load ptr, ptr %11, align 8, !tbaa !5
  %164 = load ptr, ptr %163, align 8, !tbaa !5
  store ptr %164, ptr %13, align 8, !tbaa !5
  %165 = load ptr, ptr %13, align 8, !tbaa !5
  %166 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %165, ptr noundef @.str.4)
  br i1 %166, label %167, label %174

167:                                              ; preds = %162
  %168 = load ptr, ptr %13, align 8, !tbaa !5
  %169 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %168, ptr noundef @.str.6)
  br i1 %169, label %170, label %174

170:                                              ; preds = %167
  %171 = load ptr, ptr %13, align 8, !tbaa !5
  %172 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %171, ptr noundef @.str.39)
  br i1 %172, label %173, label %174

173:                                              ; preds = %170
  call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %174

174:                                              ; preds = %173, %170, %167, %162
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  br label %175

175:                                              ; preds = %174
  %176 = load ptr, ptr %11, align 8, !tbaa !5
  %177 = getelementptr inbounds ptr, ptr %176, i32 1
  store ptr %177, ptr %11, align 8, !tbaa !5
  br label %157

178:                                              ; preds = %161
  %179 = call noundef zeroext i1 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z21FLAGS_benchmark_colorB5cxx11) #5
  br i1 %179, label %180, label %181

180:                                              ; preds = %178
  call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %181

181:                                              ; preds = %180, %178
  ret void
}

declare noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef zeroext i1 @_ZN9benchmark15ParseDoubleFlagEPKcS1_Pd(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef zeroext i1 @_ZN9benchmark6IsFlagEPKcS1_(ptr noundef, ptr noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE3endEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #4

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 = { 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 = { "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 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 #5 = { 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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = !{!15, !6, i64 0}
!15 = !{!"_ZTSSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE", !6, i64 0, !16, i64 8}
!16 = !{!"long", !7, i64 0}
!17 = !{!15, !16, i64 8}


; 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::__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.std::initializer_list" = type { ptr, i64 }

@FLAGS_benchmark_list_tests = external dso_local global i8, align 1
@_Z22FLAGS_benchmark_filterB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@FLAGS_benchmark_min_time = external dso_local global double, align 8
@FLAGS_benchmark_repetitions = external dso_local global i32, align 4
@FLAGS_benchmark_report_aggregates_only = external dso_local global i8, align 1
@_Z22FLAGS_benchmark_formatB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str.4 = external hidden unnamed_addr constant [8 x i8], align 1
@_Z26FLAGS_benchmark_out_formatB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str.6 = external hidden unnamed_addr constant [5 x i8], align 1
@_Z19FLAGS_benchmark_outB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_Z21FLAGS_benchmark_colorB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@FLAGS_benchmark_counters_tabular = external dso_local global i8, align 1
@FLAGS_v = external dso_local global i32, align 4
@_ZN9benchmark17BenchmarkReporter7Context15executable_nameE = external local_unnamed_addr global ptr, align 8
@.str.26 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.30 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.31 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.32 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.33 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.34 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.35 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.36 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.37 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.38 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.39 = external hidden unnamed_addr constant [4 x i8], align 1

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

; 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 noundef zeroext i1 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9benchmark8internal17PrintUsageAndExitEv() local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9benchmark8internal21ParseCommandLineFlagsEPiPPc(ptr nocapture noundef %0, ptr nocapture noundef %1) local_unnamed_addr #2 {
  %3 = alloca %"class.std::initializer_list", align 8
  %4 = alloca [2 x ptr], align 8
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  store ptr %5, ptr @_ZN9benchmark17BenchmarkReporter7Context15executable_nameE, align 8, !tbaa !5
  %6 = load i32, ptr %0, align 4, !tbaa !9
  %7 = icmp sgt i32 %6, 1
  br i1 %7, label %.lr.ph55, label %._crit_edge56

._crit_edge56:                                    ; preds = %70, %2
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #5
  store ptr @_Z22FLAGS_benchmark_formatB5cxx11, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr @_Z26FLAGS_benchmark_out_formatB5cxx11, ptr %8, align 8, !tbaa !5
  store ptr %4, ptr %3, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %3, i64 8
  store i64 2, ptr %9, align 8, !tbaa !14
  %10 = call noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16) %3) #5
  %11 = call noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE3endEv(ptr noundef nonnull align 8 dereferenceable(16) %3) #5
  %.not57 = icmp eq ptr %10, %11
  br i1 %.not57, label %._crit_edge61, label %.lr.ph60

.lr.ph55:                                         ; preds = %2, %70
  %.053 = phi i32 [ %71, %70 ], [ 1, %2 ]
  %12 = sext i32 %.053 to i64
  %13 = getelementptr inbounds ptr, ptr %1, i64 %12
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  %15 = tail call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %14, ptr noundef nonnull @.str.26, ptr noundef nonnull @FLAGS_benchmark_list_tests)
  br i1 %15, label %49, label %16

16:                                               ; preds = %.lr.ph55
  %17 = load ptr, ptr %13, align 8, !tbaa !5
  %18 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %17, ptr noundef nonnull @.str.27, ptr noundef nonnull @_Z22FLAGS_benchmark_filterB5cxx11)
  br i1 %18, label %49, label %19

19:                                               ; preds = %16
  %20 = load ptr, ptr %13, align 8, !tbaa !5
  %21 = tail call noundef zeroext i1 @_ZN9benchmark15ParseDoubleFlagEPKcS1_Pd(ptr noundef %20, ptr noundef nonnull @.str.28, ptr noundef nonnull @FLAGS_benchmark_min_time)
  br i1 %21, label %49, label %22

22:                                               ; preds = %19
  %23 = load ptr, ptr %13, align 8, !tbaa !5
  %24 = tail call noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef %23, ptr noundef nonnull @.str.29, ptr noundef nonnull @FLAGS_benchmark_repetitions)
  br i1 %24, label %49, label %25

25:                                               ; preds = %22
  %26 = load ptr, ptr %13, align 8, !tbaa !5
  %27 = tail call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %26, ptr noundef nonnull @.str.30, ptr noundef nonnull @FLAGS_benchmark_report_aggregates_only)
  br i1 %27, label %49, label %28

28:                                               ; preds = %25
  %29 = load ptr, ptr %13, align 8, !tbaa !5
  %30 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %29, ptr noundef nonnull @.str.31, ptr noundef nonnull @_Z22FLAGS_benchmark_formatB5cxx11)
  br i1 %30, label %49, label %31

31:                                               ; preds = %28
  %32 = load ptr, ptr %13, align 8, !tbaa !5
  %33 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %32, ptr noundef nonnull @.str.32, ptr noundef nonnull @_Z19FLAGS_benchmark_outB5cxx11)
  br i1 %33, label %49, label %34

34:                                               ; preds = %31
  %35 = load ptr, ptr %13, align 8, !tbaa !5
  %36 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %35, ptr noundef nonnull @.str.33, ptr noundef nonnull @_Z26FLAGS_benchmark_out_formatB5cxx11)
  br i1 %36, label %49, label %37

37:                                               ; preds = %34
  %38 = load ptr, ptr %13, align 8, !tbaa !5
  %39 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %38, ptr noundef nonnull @.str.34, ptr noundef nonnull @_Z21FLAGS_benchmark_colorB5cxx11)
  br i1 %39, label %49, label %40

40:                                               ; preds = %37
  %41 = load ptr, ptr %13, align 8, !tbaa !5
  %42 = tail call noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %41, ptr noundef nonnull @.str.35, ptr noundef nonnull @_Z21FLAGS_benchmark_colorB5cxx11)
  br i1 %42, label %49, label %43

43:                                               ; preds = %40
  %44 = load ptr, ptr %13, align 8, !tbaa !5
  %45 = tail call noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef %44, ptr noundef nonnull @.str.36, ptr noundef nonnull @FLAGS_benchmark_counters_tabular)
  br i1 %45, label %49, label %46

46:                                               ; preds = %43
  %47 = load ptr, ptr %13, align 8, !tbaa !5
  %48 = tail call noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef %47, ptr noundef nonnull @.str.37, ptr noundef nonnull @FLAGS_v)
  br i1 %48, label %49, label %66

49:                                               ; preds = %46, %43, %40, %37, %34, %31, %28, %25, %22, %19, %16, %.lr.ph55
  %50 = load i32, ptr %0, align 4, !tbaa !9
  %51 = add nsw i32 %50, -1
  %.not5051 = icmp eq i32 %.053, %51
  br i1 %.not5051, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %49
  %52 = add i32 %50, -2
  %53 = sub i32 %52, %.053
  %54 = zext i32 %53 to i64
  %55 = add nuw nsw i64 %54, 1
  %min.iters.check = icmp ult i32 %53, 3
  br i1 %min.iters.check, label %.lr.ph.preheader65, label %vector.ph

.lr.ph.preheader65:                               ; preds = %middle.block, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ %12, %.lr.ph.preheader ], [ %ind.end, %middle.block ]
  br label %.lr.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.vec = and i64 %55, 8589934588
  %ind.end = add nsw i64 %n.vec, %12
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = add i64 %index, %12
  %56 = getelementptr ptr, ptr %1, i64 %offset.idx
  %57 = getelementptr i8, ptr %56, i64 8
  %58 = getelementptr i8, ptr %56, i64 24
  %wide.load = load <2 x ptr>, ptr %57, align 8, !tbaa !5
  %wide.load64 = load <2 x ptr>, ptr %58, align 8, !tbaa !5
  %59 = getelementptr inbounds ptr, ptr %1, i64 %offset.idx
  %60 = getelementptr inbounds i8, ptr %59, i64 16
  store <2 x ptr> %wide.load, ptr %59, align 8, !tbaa !5
  store <2 x ptr> %wide.load64, ptr %60, align 8, !tbaa !5
  %index.next = add nuw i64 %index, 4
  %61 = icmp eq i64 %index.next, %n.vec
  br i1 %61, label %middle.block, label %vector.body, !llvm.loop !15

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %55, %n.vec
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader65

._crit_edge:                                      ; preds = %.lr.ph, %middle.block, %49
  store i32 %51, ptr %0, align 4, !tbaa !9
  %62 = add nsw i32 %.053, -1
  br label %70

.lr.ph:                                           ; preds = %.lr.ph.preheader65, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ %indvars.iv.ph, %.lr.ph.preheader65 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, 1
  %63 = getelementptr inbounds ptr, ptr %1, i64 %indvars.iv.next
  %64 = load ptr, ptr %63, align 8, !tbaa !5
  %65 = getelementptr inbounds ptr, ptr %1, i64 %indvars.iv
  store ptr %64, ptr %65, align 8, !tbaa !5
  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
  %exitcond = icmp eq i32 %51, %lftr.wideiv
  br i1 %exitcond, label %._crit_edge, label %.lr.ph, !llvm.loop !19

66:                                               ; preds = %46
  %67 = load ptr, ptr %13, align 8, !tbaa !5
  %68 = tail call noundef zeroext i1 @_ZN9benchmark6IsFlagEPKcS1_(ptr noundef %67, ptr noundef nonnull @.str.38)
  br i1 %68, label %69, label %70

69:                                               ; preds = %66
  tail call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %70

70:                                               ; preds = %._crit_edge, %69, %66
  %.1 = phi i32 [ %62, %._crit_edge ], [ %.053, %69 ], [ %.053, %66 ]
  %71 = add nsw i32 %.1, 1
  %72 = load i32, ptr %0, align 4, !tbaa !9
  %73 = icmp slt i32 %71, %72
  br i1 %73, label %.lr.ph55, label %._crit_edge56, !llvm.loop !20

._crit_edge61:                                    ; preds = %82, %._crit_edge56
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #5
  %74 = call noundef zeroext i1 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z21FLAGS_benchmark_colorB5cxx11) #5
  br i1 %74, label %84, label %85

.lr.ph60:                                         ; preds = %._crit_edge56, %82
  %.04858 = phi ptr [ %83, %82 ], [ %10, %._crit_edge56 ]
  %75 = load ptr, ptr %.04858, align 8, !tbaa !5
  %76 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %75, ptr noundef nonnull @.str.4)
  br i1 %76, label %77, label %82

77:                                               ; preds = %.lr.ph60
  %78 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %75, ptr noundef nonnull @.str.6)
  br i1 %78, label %79, label %82

79:                                               ; preds = %77
  %80 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %75, ptr noundef nonnull @.str.39)
  br i1 %80, label %81, label %82

81:                                               ; preds = %79
  call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %82

82:                                               ; preds = %81, %79, %77, %.lr.ph60
  %83 = getelementptr inbounds i8, ptr %.04858, i64 8
  %.not = icmp eq ptr %83, %11
  br i1 %.not, label %._crit_edge61, label %.lr.ph60

84:                                               ; preds = %._crit_edge61
  call void @_ZN9benchmark8internal17PrintUsageAndExitEv()
  br label %85

85:                                               ; preds = %84, %._crit_edge61
  ret void
}

declare noundef zeroext i1 @_ZN9benchmark13ParseBoolFlagEPKcS1_Pb(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare noundef zeroext i1 @_ZN9benchmark15ParseStringFlagEPKcS1_PNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare noundef zeroext i1 @_ZN9benchmark15ParseDoubleFlagEPKcS1_Pd(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare noundef zeroext i1 @_ZN9benchmark14ParseInt32FlagEPKcS1_Pi(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare noundef zeroext i1 @_ZN9benchmark6IsFlagEPKcS1_(ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE3endEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #4

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 = { 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 = { "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 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 #5 = { 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, !6, i64 0}
!12 = !{!"_ZTSSt16initializer_listIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE", !6, i64 0, !13, i64 8}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !13, i64 8}
!15 = distinct !{!15, !16, !17, !18}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!"llvm.loop.isvectorized", i32 1}
!18 = !{!"llvm.loop.unroll.runtime.disable"}
!19 = distinct !{!19, !16, !18, !17}
!20 = distinct !{!20, !16}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass