High level conclusions

Fuzzers reach 81.46% code coverage.

Fuzzers reach 9.138% of cyclomatic complexity.

Fuzzers reach 5.284% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

132 / 2498

Cyclomatic complexity statically reachable by fuzzers

1455 / 15921

Runtime code coverage of functions

2035 / 2498

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: find

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	11	17.4%
gold	[1:9]	42	66.6%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	10	15.8%
All colors	63	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
5	50	get_supported_implementations()	call site: 00050	abort
5	57	test_find_char16(std::__1::span , char16_t)	call site: 00057	abort
1	37	simdutf::internal::available_implementation_list::begin() const	call site: 00037	__cxa_begin_catch

Runtime coverage analysis

Covered functions

106

Functions that are reachable but not covered

7

Reachable functions

52

Percentage of reachable functions covered

86.54%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/find.cpp	3
/src/simdutf/fuzz/helpers/common.h	2
/src/simdutf/src/implementation.cpp	9
/src/simdutf/include/simdutf/implementation.h	2
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3

Fuzzer: with_replacement

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	17	24.6%
gold	[1:9]	42	60.8%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	10	14.4%
All colors	69	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
10	50	get_supported_implementations()	call site: 00050	_ZN10FNV1A_hash14fnv1ahash_implIcQ11is_hashableIT_EEEmRKNSt3__16vectorIS1_NS2_9allocatorIS1_EEEE
6	62	test_utf16be_with_replacement(std::__1::span )	call site: 00062	abort
1	37	simdutf::internal::available_implementation_list::begin() const	call site: 00037	__cxa_begin_catch

Runtime coverage analysis

Covered functions

223

Functions that are reachable but not covered

13

Reachable functions

58

Percentage of reachable functions covered

77.59%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/with_replacement.cpp	3
/src/simdutf/fuzz/helpers/common.h	5
/src/simdutf/src/implementation.cpp	9
/src/simdutf/include/simdutf/implementation.h	2
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3

Fuzzer: misc

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	21	17.2%
gold	[1:9]	43	35.2%
yellow	[10:29]	4	3.27%
greenyellow	[30:49]	4	3.27%
lawngreen	50+	50	40.9%
All colors	122	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
8	113	to_well_formed_utf16(std::__1::span )	call site: 00113	abort
4	107	validate_utf16_as_ascii(std::__1::span )	call site: 00107	abort
3	59	validate_ascii_with_err(std::__1::span )	call site: 00059	_ZN6nameof11nameof_enumIN7simdutf10error_codeEEENSt3__19enable_ifIXsr3stdE9is_enum_vIu7__decayIT_EEENS3_17basic_string_viewIcNS3_11char_traitsIcEEEEE4typeES5_
1	37	simdutf::internal::available_implementation_list::begin() const	call site: 00037	__cxa_begin_catch
1	50	get_supported_implementations()	call site: 00050	abort
1	53	detect(std::__1::span )	call site: 00053	abort
1	56	validate_ascii(std::__1::span )	call site: 00056	abort
1	70	std::__1::basic_string , std::__1::allocator > FNV1A_hash::as_str > >(std::__1::vector > const&)	call site: 00070	abort
1	82	simdutf::trim_partial_utf8(char const*, unsigned long)	call site: 00082	abort

Runtime coverage analysis

Covered functions

360

Functions that are reachable but not covered

10

Reachable functions

107

Percentage of reachable functions covered

90.65%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/misc.cpp	9
/src/simdutf/fuzz/helpers/common.h	7
/src/simdutf/src/implementation.cpp	17
/src/simdutf/include/simdutf/implementation.h	4
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3
/src/simdutf/fuzz/helpers/nameof.hpp	1
/src/simdutf/include/simdutf/scalar/utf16.h	2
/src/simdutf/include/simdutf/scalar/swap_bytes.h	3
/src/simdutf/include/simdutf/scalar/utf8.h	1
/src/simdutf/include/simdutf/scalar/latin1_to_utf8/latin1_to_utf8.h	1

Fuzzer: base64_details

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	8	10.8%
gold	[1:9]	42	56.7%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	24	32.4%
All colors	74	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
3	59	simdutf::full_result::operator simdutf::result() const	call site: 00059	abort
2	54	simdutf::implementation::maximal_binary_length_from_base64(char const*, unsigned long) const	call site: 00054	abort
2	68	void test_details (std::__1::span , simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00068	abort
1	39	simdutf::internal::available_implementation_list::begin() const	call site: 00039	__cxa_begin_catch

Runtime coverage analysis

Covered functions

114

Functions that are reachable but not covered

14

Reachable functions

79

Percentage of reachable functions covered

82.28%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/base64_details.cpp	8
/src/simdutf/fuzz/helpers/common.h	4
/src/simdutf/src/implementation.cpp	11
/src/simdutf/include/simdutf/implementation.h	2
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3
/src/simdutf/include/simdutf/scalar/base64.h	2
/work/include/simdutf/error.h	2

Fuzzer: safe_conversion

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	7	6.19%
gold	[1:9]	42	37.1%
yellow	[10:29]	4	3.53%
greenyellow	[30:49]	1	0.88%
lawngreen	50+	59	52.2%
All colors	113	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
3	77	_ZN7simdutf22convert_latin1_to_utf8ITkNS_6detail23input_span_of_byte_likeENSt3__14spanIKhLm18446744073709551615EEETkNS1_24output_span_of_byte_likeERNS2_6vectorIcNS2_9allocatorIcEEEEEEmRKT_OT0_	call site: 00077	abort
1	36	simdutf::internal::available_implementation_list::begin() const	call site: 00036	__cxa_begin_catch
1	69	simdutf::convert_latin1_to_utf8_safe(char const*, unsigned long, char*, unsigned long)	call site: 00069	abort
1	101	simdutf::convert_utf16_to_utf8_safe(char16_t const*, unsigned long, char*, unsigned long)	call site: 00101	abort
1	111	test_utf16_to_utf8(std::__1::span , unsigned long)	call site: 00111	abort

Runtime coverage analysis

Covered functions

116

Functions that are reachable but not covered

8

Reachable functions

95

Percentage of reachable functions covered

91.58%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/safe_conversion.cpp	5
/src/simdutf/src/implementation.cpp	20
/src/simdutf/include/simdutf/implementation.h	4
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3
/work/include/simdutf/implementation.h	7
/src/simdutf/include/simdutf/scalar/latin1_to_utf8/latin1_to_utf8.h	1
/src/simdutf/include/simdutf/scalar/utf16.h	1
/src/simdutf/include/simdutf/scalar/utf16_to_utf8/utf16_to_utf8.h	1
/src/simdutf/include/simdutf/error.h	1

Fuzzer: base64

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	53	24.8%
gold	[1:9]	57	26.7%
yellow	[10:29]	1	0.46%
greenyellow	[30:49]	1	0.46%
lawngreen	50+	101	47.4%
All colors	213	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
6	80	void decode (std::__1::span , simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00080	_ZN6nameof11nameof_enumIN7simdutf10error_codeEEENSt3__19enable_ifIXsr3stdE9is_enum_vIu7__decayIT_EEENS3_17basic_string_viewIcNS3_11char_traitsIcEEEEE4typeES5_
6	108	simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end (char const*, unsigned long, simdutf::base64_options)	call site: 00108	__clang_call_terminate
5	184	simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end (char16_t const*, unsigned long, simdutf::base64_options)	call site: 00184	__clang_call_terminate
4	123	simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl (char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00123
4	195	simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl (char*, unsigned long, char16_t const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00195
3	65	void roundtrip (std::__1::span , simdutf::base64_options, simdutf::last_chunk_handling_options, unsigned long)	call site: 00065	abort
3	74	void roundtrip (std::__1::span , simdutf::base64_options, simdutf::last_chunk_handling_options, unsigned long)	call site: 00074	abort
3	115	simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end (char const*, unsigned long, simdutf::base64_options)	call site: 00115
3	146	simdutf::scalar::(anonymous namespace)::base64::patch_tail_result(simdutf::full_result, unsigned long, unsigned long, unsigned long, unsigned long, simdutf::last_chunk_handling_options)	call site: 00146	__clang_call_terminate
2	105	simdutf::result simdutf::base64_to_binary_safe_impl (char const*, unsigned long, char*, unsigned long&, simdutf::base64_options, simdutf::last_chunk_handling_options, bool)	call site: 00105
2	173	void decode_safe (std::__1::span , simdutf::base64_options, unsigned long, simdutf::last_chunk_handling_options)	call site: 00173	abort
2	176	void decode_safe (std::__1::span , simdutf::base64_options, unsigned long, simdutf::last_chunk_handling_options)	call site: 00176	abort

Runtime coverage analysis

Covered functions

220

Functions that are reachable but not covered

22

Reachable functions

163

Percentage of reachable functions covered

86.5%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/base64.cpp	9
/src/simdutf/fuzz/helpers/common.h	7
/src/simdutf/src/implementation.cpp	19
/src/simdutf/include/simdutf/implementation.h	10
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3
/src/simdutf/include/simdutf/scalar/base64.h	16
/work/include/simdutf/implementation.h	1
/work/include/simdutf/scalar/base64.h	2
/src/simdutf/fuzz/helpers/nameof.hpp	1
/src/simdutf/include/simdutf/base64_implementation.h	4
/src/simdutf/include/simdutf/error.h	4

Fuzzer: roundtrip

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	111	51.8%
gold	[1:9]	21	9.81%
yellow	[10:29]	2	0.93%
greenyellow	[30:49]	1	0.46%
lawngreen	50+	79	36.9%
All colors	214	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
57	42	simdutf::internal::detect_supported_architectures()	call site: 00042	printf
6	126	simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end (char const*, unsigned long, simdutf::base64_options)	call site: 00126	__clang_call_terminate
6	150	simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl (char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00150
6	200	LLVMFuzzerTestOneInput	call site: 00200	abort
6	207	LLVMFuzzerTestOneInput	call site: 00207	printf
5	140	simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl (char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00140
3	104	LLVMFuzzerTestOneInput	call site: 00104
3	133	simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end (char const*, unsigned long, simdutf::base64_options)	call site: 00133
3	164	simdutf::scalar::(anonymous namespace)::base64::patch_tail_result(simdutf::full_result, unsigned long, unsigned long, unsigned long, unsigned long, simdutf::last_chunk_handling_options)	call site: 00164	__clang_call_terminate
3	193	LLVMFuzzerTestOneInput	call site: 00193
2	123	simdutf::result simdutf::base64_to_binary_safe_impl (char const*, unsigned long, char*, unsigned long&, simdutf::base64_options, simdutf::last_chunk_handling_options, bool)	call site: 00123
2	161	simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl (char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)	call site: 00161

Runtime coverage analysis

Covered functions

584

Functions that are reachable but not covered

15

Reachable functions

102

Percentage of reachable functions covered

85.29%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/roundtrip.cpp	2
/src/simdutf/src/implementation.cpp	16
/src/simdutf/include/simdutf/implementation.h	8
/src/simdutf/src/simdutf/icelake/implementation.h	1
/src/simdutf/src/simdutf/haswell/implementation.h	1
/src/simdutf/src/simdutf/westmere/implementation.h	1
/src/simdutf/src/simdutf/fallback/implementation.h	1
/src/simdutf/include/simdutf/internal/isadetection.h	3
/src/simdutf/include/simdutf/scalar/base64.h	9
/src/simdutf/include/simdutf/base64_implementation.h	2
/src/simdutf/include/simdutf/error.h	4

Fuzzer: conversion

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	0	0.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	4	100.%
All colors	4	100

Runtime coverage analysis

Covered functions

1287

Functions that are reachable but not covered

2

Reachable functions

5

Percentage of reachable functions covered

60.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/simdutf/fuzz/conversion.cpp	2

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
simdutf::haswell::implementation::base64_to_binary(charconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/haswell/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	111	0	460	375
simdutf::westmere::implementation::base64_to_binary(char16_tconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/westmere/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	109	0	457	370
simdutf::icelake::implementation::base64_to_binary(charconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/icelake/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	73	0	390	326
simdutf::icelake::implementation::base64_to_binary(char16_tconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/icelake/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	73	0	390	304
simdutf::westmere::implementation::base64_to_binary(charconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/westmere/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	109	0	457	242
simdutf::haswell::implementation::base64_to_binary(char16_tconst*,unsignedlong,char*,simdutf::base64_options,simdutf::last_chunk_handling_options)const	/src/simdutf/src/haswell/implementation.cpp	6	['N/A', 'N/A', 'size_t', 'N/A', 'size_t', 'size_t']	8	0	181	21	21	111	0	460	242
populate_functions()::$_0::__invoke(std::__1::span )	/src/simdutf/fuzz/conversion.cpp	2	['N/A', 'size_t']	10	0	22	3	2	95	0	348	229

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

269 / 2498

Cyclomatic complexity statically reachable by fuzzers

3539 / 15921

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/simdutf/fuzz/find.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['get_supported_implementations()', 'test_find_char16(std::__1::span, char16_t)', 'simdutf::internal::available_implementation_list::begin() const']

/src/simdutf/fuzz/with_replacement.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['get_supported_implementations()', 'test_utf16be_with_replacement(std::__1::span)', 'simdutf::internal::available_implementation_list::begin() const']

/src/simdutf/fuzz/misc.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['to_well_formed_utf16(std::__1::span)', 'validate_utf16_as_ascii(std::__1::span)', 'validate_ascii_with_err(std::__1::span)', 'simdutf::internal::available_implementation_list::begin() const', 'get_supported_implementations()', 'detect(std::__1::span)', 'validate_ascii(std::__1::span)', 'std::__1::basic_string, std::__1::allocator > FNV1A_hash::as_str > >(std::__1::vector > const&)', 'simdutf::trim_partial_utf8(char const*, unsigned long)']

/src/simdutf/fuzz/base64_details.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['simdutf::full_result::operator simdutf::result() const', 'simdutf::implementation::maximal_binary_length_from_base64(char const*, unsigned long) const', 'void test_details(std::__1::span, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'simdutf::internal::available_implementation_list::begin() const']

/src/simdutf/fuzz/safe_conversion.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['_ZN7simdutf22convert_latin1_to_utf8ITkNS_6detail23input_span_of_byte_likeENSt3__14spanIKhLm18446744073709551615EEETkNS1_24output_span_of_byte_likeERNS2_6vectorIcNS2_9allocatorIcEEEEEEmRKT_OT0_', 'simdutf::internal::available_implementation_list::begin() const', 'simdutf::convert_latin1_to_utf8_safe(char const*, unsigned long, char*, unsigned long)', 'simdutf::convert_utf16_to_utf8_safe(char16_t const*, unsigned long, char*, unsigned long)', 'test_utf16_to_utf8(std::__1::span, unsigned long)']

/src/simdutf/fuzz/base64.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['void decode(std::__1::span, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end(char const*, unsigned long, simdutf::base64_options)', 'simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end(char16_t const*, unsigned long, simdutf::base64_options)', 'simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl(char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl(char*, unsigned long, char16_t const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'void roundtrip(std::__1::span, simdutf::base64_options, simdutf::last_chunk_handling_options, unsigned long)', 'void roundtrip(std::__1::span, simdutf::base64_options, simdutf::last_chunk_handling_options, unsigned long)', 'simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end(char const*, unsigned long, simdutf::base64_options)', 'simdutf::scalar::(anonymous namespace)::base64::patch_tail_result(simdutf::full_result, unsigned long, unsigned long, unsigned long, unsigned long, simdutf::last_chunk_handling_options)', 'simdutf::result simdutf::base64_to_binary_safe_impl(char const*, unsigned long, char*, unsigned long&, simdutf::base64_options, simdutf::last_chunk_handling_options, bool)']

/src/simdutf/fuzz/roundtrip.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['simdutf::internal::detect_supported_architectures()', 'simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end(char const*, unsigned long, simdutf::base64_options)', 'simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl(char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'LLVMFuzzerTestOneInput', 'simdutf::full_result simdutf::scalar::(anonymous namespace)::base64::base64_tail_decode_impl(char*, unsigned long, char const*, unsigned long, unsigned long, simdutf::base64_options, simdutf::last_chunk_handling_options)', 'simdutf::scalar::(anonymous namespace)::base64::reduced_input simdutf::scalar::(anonymous namespace)::base64::find_end(char const*, unsigned long, simdutf::base64_options)', 'simdutf::scalar::(anonymous namespace)::base64::patch_tail_result(simdutf::full_result, unsigned long, unsigned long, unsigned long, unsigned long, simdutf::last_chunk_handling_options)']

/src/simdutf/fuzz/conversion.cpp

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
test_find_char(std::__1::span ,char)	46	25	54.34%	['find']
test_find_char16(std::__1::span ,char16_t)	47	25	53.19%	['find']
test_utf16le_with_replacement(std::__1::span )	76	41	53.94%	['with_replacement']
test_utf16be_with_replacement(std::__1::span )	76	41	53.94%	['with_replacement']
validate_utf16_as_ascii(std::__1::span )	51	25	49.01%	['misc']
voidtest_details (std::__1::span ,simdutf::base64_options,simdutf::last_chunk_handling_options)	77	40	51.94%	['base64_details']
voidtest_details (std::__1::span ,simdutf::base64_options,simdutf::last_chunk_handling_options)	77	40	51.94%	['base64_details']
unsignedintsimdutf::haswell::(anonymousnamespace)::block64::to_base64_mask (longlong__vector(4)*,unsignedint*)	118	62	52.54%	['base64', 'base64_details']
voiddecode (std::__1::span ,simdutf::base64_options,simdutf::last_chunk_handling_options)	51	23	45.09%	['base64']
voiddecode (std::__1::span ,simdutf::base64_options,simdutf::last_chunk_handling_options)	51	23	45.09%	['base64']
unsignedlongsimdutf::haswell::(anonymousnamespace)::avx2_encode_base64_impl (char*,charconst*,unsignedlong,simdutf::base64_options,unsignedlong)	212	93	43.86%	['base64']
unsignedlongsimdutf::haswell::(anonymousnamespace)::avx2_encode_base64_impl (char*,charconst*,unsignedlong,simdutf::base64_options,unsignedlong)	212	93	43.86%	['base64', 'roundtrip']
unsignedlongsimdutf::westmere::(anonymousnamespace)::encode_base64_impl (char*,charconst*,unsignedlong,simdutf::base64_options,unsignedlong)	174	74	42.52%	['base64']
unsignedlongsimdutf::westmere::(anonymousnamespace)::encode_base64_impl (char*,charconst*,unsignedlong,simdutf::base64_options,unsignedlong)	174	74	42.52%	['base64', 'roundtrip']
Conversion<(UtfEncodings)0,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)0,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)0,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)0,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)0,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)0,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)1,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char16_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char16_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char32_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char32_tconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char32_tconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)3,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(char32_tconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(char32_tconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)4,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(charconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)2,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,simdutf::result(simdutf::implementation::*)(charconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char32_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)3,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char32_t*)noexceptconst>::do_conversion(std::__1::span ,std::__1::vector >const&,bool)const	81	43	53.08%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)0,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::do_conversion(std::__1::span ,std::__1::vector >const&,bool)const	81	43	53.08%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)1,unsignedlong(simdutf::implementation::*)(unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char16_t*)noexceptconst>::do_conversion(std::__1::span ,std::__1::vector >const&,bool)const	81	43	53.08%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char*)noexceptconst>::calculate_length(std::__1::span ,bool)const	34	17	50.0%	['conversion']
Conversion<(UtfEncodings)4,(UtfEncodings)2,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong)noexceptconst,unsignedlong(simdutf::implementation::*)(charconst*,unsignedlong,char*)noexceptconst>::do_conversion(std::__1::span ,std::__1::vector >const&,bool)const	81	43	53.08%	['conversion']

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/src/simdutf/fuzz/base64_details.cpp	['base64_details']	['base64_details']
/src/simdutf/include/simdutf/scalar/utf16_to_utf8/valid_utf16_to_utf8.h	[]	[]
/src/simdutf/src/fallback/implementation.cpp	[]	[]
/src/simdutf/src/generic/validate_utf32.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_latin1_to_utf32.inl.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf16_to_latin1.cpp	[]	[]
/src/simdutf/src/generic/utf8_to_utf32/utf8_to_utf32.h	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf32_to_utf16.cpp	[]	[]
/src/simdutf/src/westmere/internal/write_v_u16_11bits_to_utf8.cpp	[]	[]
/src/simdutf/src/westmere/sse_utf16fix.cpp	[]	[]
/src/simdutf/fuzz/helpers/nameof.hpp	['misc', 'base64']	[]
/src/simdutf/src/generic/base64lengths.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf8.h	['misc']	['misc']
/src/simdutf/src/implementation.cpp	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/src/simdutf/haswell/simd32-inl.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_latin1_to_utf16.inl.cpp	[]	[]
/src/simdutf/src/generic/utf16/utf8_length_from_utf16_bytemask.h	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf8_to_utf16.cpp	[]	[]
/src/simdutf/src/generic/validate_utf16.h	[]	[]
/src/simdutf/src/haswell/avx2_convert_latin1_to_utf16.cpp	[]	[]
/src/simdutf/src/haswell/avx2_utf16fix.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_utf8_to_utf32.cpp	[]	[]
/src/simdutf/src/icelake/icelake_ascii_validation.inl.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_utf16_to_latin1.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf16_to_utf32/utf16_to_utf32.h	[]	[]
/src/simdutf/fuzz/find.cpp	['find']	['find']
/src/simdutf/include/simdutf/scalar/latin1.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_valid_utf8_to_latin1.inl.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf32_to_utf8.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf16_to_utf8.cpp	[]	[]
/usr/local/bin/../include/c++/v1/__functional/perfect_forward.h	[]	[]
/src/simdutf/src/icelake/icelake_utf16fix.cpp	[]	[]
/src/simdutf/src/haswell/avx2_validate_utf16.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf32_to_utf8/valid_utf32_to_utf8.h	[]	[]
/src/simdutf/include/simdutf/scalar/latin1_to_utf16/latin1_to_utf16.h	[]	[]
/src/simdutf/src/generic/buf_block_reader.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf8_to_latin1/valid_utf8_to_latin1.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf16.h	['misc', 'safe_conversion']	['misc', 'safe_conversion']
/src/simdutf/src/simdutf/westmere/simd64-inl.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf32_to_latin1.inl.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf32_to_latin1.cpp	[]	[]
/src/simdutf/src/haswell/avx2_base64.cpp	[]	[]
/src/simdutf/src/icelake/icelake_utf8_validation.inl.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_utf16_to_utf8.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_latin1_to_utf32.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf32.h	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf8_to_latin1.cpp	[]	[]
/src/simdutf/src/simdutf/icelake/implementation.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/fuzz/with_replacement.cpp	['with_replacement']	['with_replacement']
/src/simdutf/fuzz/conversion.cpp	['conversion']	['conversion']
/src/simdutf/include/simdutf/scalar/utf32_to_utf8/utf32_to_utf8.h	[]	[]
/src/simdutf/fuzz/helpers/common.h	['find', 'with_replacement', 'misc', 'base64_details', 'base64']	['find', 'with_replacement', 'misc', 'base64_details', 'base64']
/src/simdutf/src/icelake/icelake_utf8_length_from_utf16.inl.cpp	[]	[]
/work/include/simdutf/error.h	['base64_details']	['base64_details']
/src/simdutf/fuzz/safe_conversion.cpp	['safe_conversion']	['safe_conversion']
/src/simdutf/src/haswell/avx2_convert_utf16_to_utf32.cpp	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf8_to_utf16.inl.cpp	[]	[]
/src/simdutf/src/generic/utf32.h	[]	[]
/src/simdutf/src/westmere/sse_convert_utf32_to_utf16.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf32_to_latin1/utf32_to_latin1.h	[]	[]
/src/simdutf/include/simdutf/scalar/latin1_to_utf8/latin1_to_utf8.h	['misc', 'safe_conversion']	['misc', 'safe_conversion']
/src/simdutf/src/icelake/icelake_utf32_validation.inl.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/atomic_util.h	[]	[]
/src/simdutf/src/generic/utf16.h	[]	[]
/src/simdutf/src/simdutf/icelake/simd32-inl.h	[]	[]
/src/simdutf/src/encoding_types.cpp	[]	[]
/src/simdutf/src/simdutf/icelake/bitmanipulation.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf16_to_utf32.inl.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf16_to_latin1/utf16_to_latin1.h	[]	[]
/src/simdutf/fuzz/base64.cpp	['base64']	['base64']
/src/simdutf/src/westmere/sse_convert_utf8_to_latin1.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf16_to_utf32/valid_utf16_to_utf32.h	[]	[]
/src/simdutf/fuzz/roundtrip.cpp	['roundtrip']	['roundtrip']
/src/simdutf/include/simdutf/scalar/utf32_to_latin1/valid_utf32_to_latin1.h	[]	[]
/src/simdutf/src/generic/utf8_to_utf16/valid_utf8_to_utf16.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf16_to_utf8/utf16_to_utf8.h	['safe_conversion']	['safe_conversion']
/src/simdutf/include/simdutf/scalar/base64.h	['base64_details', 'base64', 'roundtrip']	['base64_details', 'base64', 'roundtrip']
/src/simdutf/src/generic/utf8_to_utf32/valid_utf8_to_utf32.h	[]	[]
/src/simdutf/src/simdutf/westmere/implementation.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/src/simdutf/westmere/simd16-inl.h	[]	[]
/src/simdutf/src/westmere/sse_convert_latin1_to_utf8.cpp	[]	[]
/src/simdutf/src/generic/utf8_validation/utf8_validator.h	[]	[]
/src/simdutf/src/icelake/icelake_find.inl.cpp	[]	[]
/src/simdutf/src/icelake/icelake_common.inl.cpp	[]	[]
/src/simdutf/src/simdutf/haswell/bitmanipulation.h	[]	[]
/src/simdutf/src/westmere/sse_convert_utf8_to_utf16.cpp	[]	[]
/src/simdutf/src/westmere/sse_base64.cpp	[]	[]
/src/simdutf/src/icelake/icelake_from_utf8.inl.cpp	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf16_to_latin1.inl.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_utf32_to_utf8.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/swap_bytes.h	['misc']	['misc']
/src/simdutf/src/icelake/implementation.cpp	[]	[]
/src/simdutf/src/icelake/icelake_convert_latin1_to_utf8.inl.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf32_to_utf16/valid_utf32_to_utf16.h	[]	[]
/src/simdutf/src/generic/find.h	[]	[]
/src/simdutf/src/haswell/avx2_convert_utf8_to_utf32.cpp	[]	[]
/src/simdutf/src/simdutf_c.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf16_to_latin1/valid_utf16_to_latin1.h	[]	[]
/src/simdutf/include/simdutf/error.h	['safe_conversion', 'base64', 'roundtrip']	['safe_conversion', 'base64', 'roundtrip']
/src/simdutf/src/westmere/sse_convert_utf32_to_latin1.cpp	[]	[]
/src/simdutf/include/simdutf/internal/isadetection.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/src/icelake/icelake_convert_utf32_to_utf8.inl.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_latin1_to_utf32.cpp	[]	[]
/src/simdutf/src/generic/utf8_to_latin1/utf8_to_latin1.h	[]	[]
/src/simdutf/src/simdutf/westmere/bitmanipulation.h	[]	[]
/src/simdutf/src/simdutf/haswell/implementation.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/include/simdutf/implementation.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/include/simdutf/scalar/utf8_to_utf16/valid_utf8_to_utf16.h	[]	[]
/usr/local/bin/../include/c++/v1/stdexcept	[]	[]
/src/simdutf/src/simdutf/fallback/implementation.h	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']	['find', 'with_replacement', 'misc', 'base64_details', 'safe_conversion', 'base64', 'roundtrip']
/src/simdutf/src/haswell/implementation.cpp	[]	[]
/src/simdutf/src/generic/base64.h	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf8_to_latin1.inl.cpp	[]	[]
/src/simdutf/src/simdutf/haswell/simd16-inl.h	[]	[]
/src/simdutf/src/westmere/sse_convert_latin1_to_utf16.cpp	[]	[]
/src/simdutf/src/icelake/icelake_base64.inl.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf8_to_utf32/utf8_to_utf32.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf8_to_latin1/utf8_to_latin1.h	[]	[]
/src/simdutf/src/generic/utf8.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf8_to_utf16/utf8_to_utf16.h	[]	[]
/src/simdutf/src/generic/utf8_validation/utf8_lookup4_algorithm.h	[]	[]
/src/simdutf/src/simdutf/haswell/simd64-inl.h	[]	[]
/src/simdutf/src/simdutf/westmere/simd.h	[]	[]
/src/simdutf/src/westmere/implementation.cpp	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf16_to_utf8.inl.cpp	[]	[]
/src/simdutf/src/simdutf/haswell/simd.h	[]	[]
/src/simdutf/include/simdutf/scalar/latin1_to_utf32/latin1_to_utf32.h	[]	[]
/src/simdutf/include/simdutf/scalar/utf32_to_utf16/utf32_to_utf16.h	[]	[]
/src/simdutf/include/simdutf/base64_implementation.h	['base64', 'roundtrip']	['base64', 'roundtrip']
/work/include/simdutf/implementation.h	['safe_conversion', 'base64']	['safe_conversion', 'base64']
/src/simdutf/src/icelake/icelake_from_valid_utf8.inl.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/ascii.h	[]	[]
/src/simdutf/src/simdutf/westmere/simd32-inl.h	[]	[]
/src/simdutf/src/westmere/sse_validate_utf16.cpp	[]	[]
/src/simdutf/fuzz/misc.cpp	['misc']	['misc']
/src/simdutf/src/generic/utf8_to_utf16/utf8_to_utf16.h	[]	[]
/src/simdutf/src/generic/utf8/utf16_length_from_utf8_bytemask.h	[]	[]
/usr/local/bin/../include/c++/v1/string	[]	[]
/src/simdutf/src/icelake/icelake_convert_utf32_to_utf16.inl.cpp	[]	[]
/src/simdutf/src/haswell/avx2_convert_latin1_to_utf8.cpp	[]	[]
/src/simdutf/src/westmere/sse_convert_utf16_to_utf32.cpp	[]	[]
/src/simdutf/include/simdutf/scalar/utf8_to_utf32/valid_utf8_to_utf32.h	[]	[]
/src/simdutf/src/icelake/icelake_utf8_common.inl.cpp	[]	[]
/src/simdutf/src/generic/ascii_validation.h	[]	[]
/src/simdutf/src/generic/utf8_to_latin1/valid_utf8_to_latin1.h	[]	[]

Directories in report

Directory
/src/simdutf/fuzz/helpers/
/src/simdutf/src/westmere/
/src/simdutf/src/simdutf/westmere/
/src/simdutf/include/simdutf/scalar/latin1_to_utf8/
/src/simdutf/src/generic/utf16/
/src/simdutf/src/generic/utf8_validation/
/src/simdutf/include/simdutf/scalar/utf32_to_utf16/
/src/simdutf/src/simdutf/icelake/
/src/simdutf/include/simdutf/scalar/utf16_to_latin1/
/src/simdutf/fuzz/
/src/simdutf/src/simdutf/haswell/
/src/simdutf/include/simdutf/scalar/utf8_to_latin1/
/src/simdutf/include/simdutf/scalar/utf16_to_utf32/
/src/simdutf/include/simdutf/scalar/utf16_to_utf8/
/src/simdutf/include/simdutf/scalar/utf8_to_utf16/
/src/simdutf/include/simdutf/internal/
/src/simdutf/include/simdutf/scalar/latin1_to_utf16/
/src/simdutf/src/generic/utf8_to_utf16/
/usr/local/bin/../include/c++/v1/
/src/simdutf/include/simdutf/scalar/utf32_to_utf8/
/usr/local/bin/../include/c++/v1/__functional/
/src/simdutf/include/simdutf/scalar/latin1_to_utf32/
/work/include/simdutf/
/src/simdutf/src/generic/utf8/
/src/simdutf/include/simdutf/scalar/utf32_to_latin1/
/src/simdutf/include/simdutf/
/src/simdutf/src/fallback/
/src/simdutf/src/generic/utf8_to_latin1/
/src/simdutf/src/icelake/
/src/simdutf/src/
/src/simdutf/include/simdutf/scalar/utf8_to_utf32/
/src/simdutf/src/haswell/
/src/simdutf/src/westmere/internal/
/src/simdutf/src/generic/
/src/simdutf/include/simdutf/scalar/
/src/simdutf/src/simdutf/fallback/
/src/simdutf/src/generic/utf8_to_utf32/