Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique Reachable Functions	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
None	9	FUZZ_dataProducer_int32Range	call site: 00007	/src/zstd/tests/fuzz/fuzz_data_producer.c:60
None	0	HUF_DEltX1_set4	call site: 00125	/src/zstd/lib/decompress/huf_decompress.c:337
None	0	HUF_buildDEltX2U32	call site: 00147	/src/zstd/lib/decompress/huf_decompress.c:968
None	0	HUF_decompress4X2_usingDTable_internal_fast	call site: 00275	/src/zstd/lib/decompress/huf_decompress.c:1710
None	0	HUF_DecompressFastArgs_init	call site: 00247	/src/zstd/lib/decompress/huf_decompress.c:203
None	0	HUF_initRemainingDStream	call site: 00270	/src/zstd/lib/decompress/huf_decompress.c:284
None	0	FUZZ_dataProducer_uint32Range	call site: 00010	/src/zstd/tests/fuzz/fuzz_data_producer.c:44

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           FUZZ_dataProducer_create

[function] [call site] 00001


             FUZZ_malloc

[function] [call site] 00002


               fprintf

[call site] 00003


               abort

[call site] 00004


           FUZZ_dataProducer_int32Range

[function] [call site] 00005


             fprintf

[call site] 00006


             abort

[call site] 00007


             FUZZ_dataProducer_uint32Range

[function] [call site] 00008


               fprintf

[call site] 00009


               abort

[call site] 00010


             FUZZ_dataProducer_uint32Range

[function] [call site] 00011


           FUZZ_dataProducer_int32Range

[function] [call site] 00012


           ZSTD_cpuid

[function] [call site] 00013


           ZSTD_cpuid_bmi2

[function] [call site] 00014


           FUZZ_dataProducer_int32Range

[function] [call site] 00015


           FUZZ_dataProducer_int32Range

[function] [call site] 00016


           FUZZ_dataProducer_int32Range

[function] [call site] 00017


           FUZZ_dataProducer_int32Range

[function] [call site] 00018


           FUZZ_dataProducer_int32Range

[function] [call site] 00019


           FUZZ_dataProducer_int32Range

[function] [call site] 00020


           FUZZ_dataProducer_uint32Range

[function] [call site] 00021


           FUZZ_dataProducer_uint32Range

[function] [call site] 00022


           FUZZ_malloc

[function] [call site] 00023


           FUZZ_malloc

[function] [call site] 00024


           FUZZ_malloc

[function] [call site] 00025


           FUZZ_dataProducer_remainingBytes

[function] [call site] 00026


           HUF_readDTableX1_wksp

[function] [call site] 00027


             HUF_readStats_wksp

[function] [call site] 00028


               HUF_readStats_body_bmi2

[function] [call site] 00029


                 FSE_decompress_wksp_bmi2

[function] [call site] 00030


                   FSE_decompress_wksp_body_bmi2

[function] [call site] 00031


                     FSE_readNCount_bmi2

[function] [call site] 00032


                       FSE_readNCount_body_bmi2

[function] [call site] 00033


                         FSE_readNCount

[function] [call site] 00034


                           FSE_readNCount_bmi2

[function] [call site] 00035


                             FSE_readNCount_body_default

[function] [call site] 00036


                               FSE_readNCount

[function] [call site] 00037


                               FSE_isError

[function] [call site] 00038


                                 ERR_isError

[function] [call site] 00039


                               MEM_readLE32

[function] [call site] 00040


                                 MEM_isLittleEndian

[function] [call site] 00041


                                 MEM_read32

[function] [call site] 00042


                                 MEM_read32

[function] [call site] 00043


                                 MEM_swap32

[function] [call site] 00044


                               __assert_fail

[call site] 00045


                               ZSTD_countTrailingZeros32

[function] [call site] 00046


                                 __assert_fail

[call site] 00047


                               ZSTD_highbit32

[function] [call site] 00048


                                 __assert_fail

[call site] 00049


                                 ZSTD_countLeadingZeros32

[function] [call site] 00050


                                   __assert_fail

[call site] 00051


                         FSE_isError

[function] [call site] 00052


                         MEM_readLE32

[function] [call site] 00053


                         __assert_fail

[call site] 00054


                         ZSTD_countTrailingZeros32

[function] [call site] 00055


                         ZSTD_highbit32

[function] [call site] 00056


                     ERR_isError

[function] [call site] 00057


                     __assert_fail

[call site] 00058


                     FSE_buildDTable_internal

[function] [call site] 00059


                       MEM_write64

[function] [call site] 00060


                       MEM_write64

[function] [call site] 00061


                       __assert_fail

[call site] 00062


                       __assert_fail

[call site] 00063


                       ZSTD_highbit32

[function] [call site] 00064


                     BIT_initDStream

[function] [call site] 00065


                       MEM_readLEST

[function] [call site] 00066


                         MEM_32bits

[function] [call site] 00067


                         MEM_readLE32

[function] [call site] 00068


                         MEM_readLE64

[function] [call site] 00069


                           MEM_isLittleEndian

[function] [call site] 00070


                           MEM_read64

[function] [call site] 00071


                           MEM_read64

[function] [call site] 00072


                           MEM_swap64

[function] [call site] 00073


                       ZSTD_highbit32

[function] [call site] 00074


                       ZSTD_highbit32

[function] [call site] 00075


                     ERR_isError

[function] [call site] 00076


                     FSE_initDState

[function] [call site] 00077


                       __assert_fail

[call site] 00078


                       __assert_fail

[call site] 00079


                       BIT_reloadDStream_internal

[function] [call site] 00080


                         __assert_fail

[call site] 00081


                         __assert_fail

[call site] 00082


                         MEM_readLEST

[function] [call site] 00083


                       MEM_readLEST

[function] [call site] 00084


                     __assert_fail

[call site] 00085


                     BIT_reloadDStream_internal

[function] [call site] 00086


                     MEM_readLEST

[function] [call site] 00087


                     __assert_fail

[call site] 00088


                     BIT_reloadDStream_internal

[function] [call site] 00089


                     MEM_readLEST

[function] [call site] 00090


                     FSE_decodeSymbolFast

[function] [call site] 00091


                       BIT_readBitsFast

[function] [call site] 00092


                         BIT_lookBitsFast

[function] [call site] 00093


                           __assert_fail

[call site] 00094


                         __assert_fail

[call site] 00095


                     FSE_decodeSymbol

[function] [call site] 00096


                     __assert_fail

[call site] 00097


                     BIT_reloadDStream_internal

[function] [call site] 00098


                     MEM_readLEST

[function] [call site] 00099


                     __assert_fail

[call site] 00100


                     BIT_reloadDStream_internal

[function] [call site] 00101


                     MEM_readLEST

[function] [call site] 00102


                     __assert_fail

[call site] 00103


                     BIT_initDStream

[function] [call site] 00104


                     ERR_isError

[function] [call site] 00105


                     FSE_initDState

[function] [call site] 00106


                     FSE_decodeSymbolFast

[function] [call site] 00107


                     FSE_decodeSymbol

[function] [call site] 00108


                     __assert_fail

[call site] 00109


                   FSE_decompress_wksp_body_default

[function] [call site] 00110


                     FSE_readNCount_bmi2

[function] [call site] 00111


                     ERR_isError

[function] [call site] 00112


                     __assert_fail

[call site] 00113


                     FSE_buildDTable_internal

[function] [call site] 00114


                 FSE_isError

[function] [call site] 00115


                 ZSTD_highbit32

[function] [call site] 00116


               HUF_readStats_body_default

[function] [call site] 00117


                 FSE_decompress_wksp_bmi2

[function] [call site] 00118


                 FSE_isError

[function] [call site] 00119


                 ZSTD_highbit32

[function] [call site] 00120


             ERR_isError

[function] [call site] 00121


             HUF_getDTableDesc

[function] [call site] 00122


             HUF_rescaleStats

[function] [call site] 00123


             HUF_DEltX1_set4

[function] [call site] 00124


               MEM_isLittleEndian

[function] [call site] 00125


               __assert_fail

[call site] 00126


             MEM_write64

[function] [call site] 00127


             HUF_DEltX1_set4

[function] [call site] 00128


             MEM_write64

[function] [call site] 00129


             MEM_write64

[function] [call site] 00130


             HUF_DEltX1_set4

[function] [call site] 00131


             MEM_write64

[function] [call site] 00132


             MEM_write64

[function] [call site] 00133


             MEM_write64

[function] [call site] 00134


             MEM_write64

[function] [call site] 00135


             __assert_fail

[call site] 00136


           ZSTD_isError

[function] [call site] 00137


             ERR_isError

[function] [call site] 00138


           HUF_readDTableX2_wksp

[function] [call site] 00139


             HUF_getDTableDesc

[function] [call site] 00140


             HUF_readStats_wksp

[function] [call site] 00141


             ERR_isError

[function] [call site] 00142


             HUF_fillDTableX2

[function] [call site] 00143


               HUF_fillDTableX2Level2

[function] [call site] 00144


                 HUF_buildDEltX2U64

[function] [call site] 00145


                   HUF_buildDEltX2U32

[function] [call site] 00146


                     MEM_isLittleEndian

[function] [call site] 00147


                 __assert_fail

[call site] 00148


                 __assert_fail

[call site] 00149


                 __assert_fail

[call site] 00150


                 __assert_fail

[call site] 00151


                 HUF_fillDTableX2ForWeight

[function] [call site] 00152


                   __assert_fail

[call site] 00153


                   HUF_buildDEltX2

[function] [call site] 00154


                     HUF_buildDEltX2U32

[function] [call site] 00155


                   HUF_buildDEltX2

[function] [call site] 00156


                   HUF_buildDEltX2U64

[function] [call site] 00157


                   HUF_buildDEltX2U64

[function] [call site] 00158


                   HUF_buildDEltX2U64

[function] [call site] 00159


               HUF_fillDTableX2ForWeight

[function] [call site] 00160


           ZSTD_isError

[function] [call site] 00161


           HUF_decompress1X_usingDTable

[function] [call site] 00162


             HUF_getDTableDesc

[function] [call site] 00163


             HUF_decompress1X2_usingDTable_internal

[function] [call site] 00164


               HUF_decompress1X2_usingDTable_internal_bmi2

[function] [call site] 00165


                 BIT_initDStream

[function] [call site] 00166


                   MEM_readLEST

[function] [call site] 00167


                     MEM_32bits

[function] [call site] 00168


                     MEM_readLE32

[function] [call site] 00169


                       MEM_isLittleEndian

[function] [call site] 00170


                       MEM_read32

[function] [call site] 00171


                       MEM_read32

[function] [call site] 00172


                       MEM_swap32

[function] [call site] 00173


                     MEM_readLE64

[function] [call site] 00174


                       MEM_isLittleEndian

[function] [call site] 00175


                       MEM_read64

[function] [call site] 00176


                       MEM_read64

[function] [call site] 00177


                       MEM_swap64

[function] [call site] 00178


                   ZSTD_highbit32

[function] [call site] 00179


                     ZSTD_countLeadingZeros32

[function] [call site] 00180


                   ZSTD_highbit32

[function] [call site] 00181


                 ERR_isError

[function] [call site] 00182


                 ZSTD_maybeNullPtrAdd

[function] [call site] 00183


                 HUF_getDTableDesc

[function] [call site] 00184


                 MEM_64bits

[function] [call site] 00185


                 __assert_fail

[call site] 00186


                 BIT_reloadDStream_internal

[function] [call site] 00187


                   MEM_readLEST

[function] [call site] 00188


                 MEM_readLEST

[function] [call site] 00189


                 BIT_lookBitsFast

[function] [call site] 00190


                 BIT_lookBitsFast

[function] [call site] 00191


                 BIT_lookBitsFast

[function] [call site] 00192


                 BIT_lookBitsFast

[function] [call site] 00193


                 BIT_lookBitsFast

[function] [call site] 00194


                 __assert_fail

[call site] 00195


                 BIT_reloadDStream_internal

[function] [call site] 00196


                 MEM_readLEST

[function] [call site] 00197


                 BIT_lookBitsFast

[function] [call site] 00198


                 BIT_lookBitsFast

[function] [call site] 00199


                 BIT_lookBitsFast

[function] [call site] 00200


                 BIT_lookBitsFast

[function] [call site] 00201


                 __assert_fail

[call site] 00202


                 BIT_reloadDStream_internal

[function] [call site] 00203


                 MEM_readLEST

[function] [call site] 00204


                 __assert_fail

[call site] 00205


                 BIT_reloadDStream_internal

[function] [call site] 00206


                 MEM_readLEST

[function] [call site] 00207


                 BIT_lookBitsFast

[function] [call site] 00208


                 BIT_lookBitsFast

[function] [call site] 00209


                 BIT_lookBitsFast

[function] [call site] 00210


                 BIT_endOfDStream

[function] [call site] 00211


               HUF_decompress1X2_usingDTable_internal_default

[function] [call site] 00212


             HUF_decompress1X1_usingDTable_internal

[function] [call site] 00213


               HUF_decompress1X1_usingDTable_internal_bmi2

[function] [call site] 00214


                 ZSTD_maybeNullPtrAdd

[function] [call site] 00215


                 HUF_getDTableDesc

[function] [call site] 00216


                 BIT_initDStream

[function] [call site] 00217


                 ERR_isError

[function] [call site] 00218


                 __assert_fail

[call site] 00219


                 BIT_reloadDStream_internal

[function] [call site] 00220


                 MEM_readLEST

[function] [call site] 00221


                 MEM_64bits

[function] [call site] 00222


                 BIT_lookBitsFast

[function] [call site] 00223


                 BIT_lookBitsFast

[function] [call site] 00224


                 BIT_lookBitsFast

[function] [call site] 00225


                 BIT_lookBitsFast

[function] [call site] 00226


                 __assert_fail

[call site] 00227


                 BIT_reloadDStream_internal

[function] [call site] 00228


                 MEM_readLEST

[function] [call site] 00229


                 MEM_32bits

[function] [call site] 00230


                 __assert_fail

[call site] 00231


                 BIT_reloadDStream_internal

[function] [call site] 00232


                 MEM_readLEST

[function] [call site] 00233


                 BIT_lookBitsFast

[function] [call site] 00234


                 BIT_lookBitsFast

[function] [call site] 00235


                 BIT_endOfDStream

[function] [call site] 00236


               HUF_decompress1X1_usingDTable_internal_default

[function] [call site] 00237


           HUF_decompress4X_usingDTable

[function] [call site] 00238


             HUF_getDTableDesc

[function] [call site] 00239


             HUF_decompress4X2_usingDTable_internal

[function] [call site] 00240


               HUF_decompress4X2_usingDTable_internal_fast

[function] [call site] 00241


                 ZSTD_maybeNullPtrAdd

[function] [call site] 00242


                 HUF_DecompressFastArgs_init

[function] [call site] 00243


                   HUF_getDTableDesc

[function] [call site] 00244


                   ZSTD_maybeNullPtrAdd

[function] [call site] 00245


                   MEM_isLittleEndian

[function] [call site] 00246


                   MEM_32bits

[function] [call site] 00247


                   __assert_fail

[call site] 00248


                   MEM_readLE16

[function] [call site] 00249


                     MEM_isLittleEndian

[function] [call site] 00250


                     MEM_read16

[function] [call site] 00251


                   MEM_readLE16

[function] [call site] 00252


                   MEM_readLE16

[function] [call site] 00253


                   HUF_initFastDStream

[function] [call site] 00254


                     ZSTD_highbit32

[function] [call site] 00255


                     MEM_readLEST

[function] [call site] 00256


                     __assert_fail

[call site] 00257


                   HUF_initFastDStream

[function] [call site] 00258


                   HUF_initFastDStream

[function] [call site] 00259


                   HUF_initFastDStream

[function] [call site] 00260


                 ERR_isError

[function] [call site] 00261


                 __assert_fail

[call site] 00262


                 __assert_fail

[call site] 00263


                 __assert_fail

[call site] 00264


                 __assert_fail

[call site] 00265


                 __assert_fail

[call site] 00266


                 __assert_fail

[call site] 00267


                 __assert_fail

[call site] 00268


                 __assert_fail

[call site] 00269


                 HUF_initRemainingDStream

[function] [call site] 00270


                   MEM_readLEST

[function] [call site] 00271


                   ZSTD_countTrailingZeros64

[function] [call site] 00272


                     __assert_fail

[call site] 00273


                 ERR_isError

[function] [call site] 00274


                 MEM_64bits

[function] [call site] 00275


             HUF_decompress4X1_usingDTable_internal

[function] [call site] 00276


               HUF_decompress4X1_usingDTable_internal_fast

[function] [call site] 00277


                 ZSTD_maybeNullPtrAdd

[function] [call site] 00278


                 HUF_DecompressFastArgs_init

[function] [call site] 00279


                 ERR_isError

[function] [call site] 00280


                 __assert_fail

[call site] 00281


                 __assert_fail

[call site] 00282


                 __assert_fail

[call site] 00283


                 __assert_fail

[call site] 00284


                 __assert_fail

[call site] 00285


                 __assert_fail

[call site] 00286


                 __assert_fail

[call site] 00287


                 __assert_fail

[call site] 00288


                 __assert_fail

[call site] 00289


                 HUF_initRemainingDStream

[function] [call site] 00290


                 ERR_isError

[function] [call site] 00291


                 MEM_64bits

[function] [call site] 00292


                 MEM_32bits

[function] [call site] 00293


                 __assert_fail

[call site] 00294


           FUZZ_dataProducer_free

[function] [call site] 00295