Commit Graph

2802 Commits

Author SHA1 Message Date
W. Felix Handte
0d606ee3db Fix Incorrect assert() 2018-12-18 13:36:39 -08:00
W. Felix Handte
bd4afc389f Add Logic to Makefile to Convert Make Vars to Defines 2018-12-18 13:36:39 -08:00
W. Felix Handte
ece2c18372 Document Macros in README 2018-12-18 13:36:39 -08:00
W. Felix Handte
c2d51637d9 Add Mutual-Exclusion Error 2018-12-18 13:36:39 -08:00
W. Felix Handte
c560e34c86 Add HUF_FORCE_DECOMPRESS_X2 2018-12-18 13:36:39 -08:00
W. Felix Handte
abd1567d3c Move HUF_DGEN Up Out of X1 Definitions 2018-12-18 13:36:39 -08:00
W. Felix Handte
4a0572b215 Refactor Huffman Decompression Away From Ternary Tree in ZSTD_decodeLiteralsBlock 2018-12-18 13:36:39 -08:00
W. Felix Handte
432314b58a Rename HUF_DECOMPRESS_MINIMAL -> HUF_FORCE_DECOMPRESS_X1 2018-12-18 13:36:39 -08:00
W. Felix Handte
4bbb8a48ad Add ZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG
This macro forces behavior in the opposite direction.
2018-12-18 13:36:39 -08:00
W. Felix Handte
64553a0e35 Rename ZSTD_DECOMPRESS_MINIMAL -> ZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT 2018-12-18 13:36:39 -08:00
W. Felix Handte
605dd576ee Remove Error Strings with ZSTD_STRIP_ERROR_STRINGS 2018-12-18 13:36:39 -08:00
W. Felix Handte
9d5f3963ff Add Option to Not Request Inlining with ZSTD_NO_INLINE 2018-12-18 13:36:39 -08:00
W. Felix Handte
df28e5babd Add ZSTD_DECOMPRESS_MINIMAL Macro, Which Reduces Branching of Decompress Variants 2018-12-18 13:36:39 -08:00
W. Felix Handte
f45c9df42e Totally Hide/Disable X2 Variants when HUF_DECOMPRESS_MINIMAL is Defined 2018-12-18 13:36:39 -08:00
W. Felix Handte
36a84b07a8 Load Dictionaries as X1 Tables 2018-12-18 13:36:39 -08:00
W. Felix Handte
f9cb348776 Add HUF_DECOMPRESS_MINIMAL Macro, Which Avoids Using X2 Variants 2018-12-18 13:36:39 -08:00
Yann Collet
635783da12 btultra2 and very small srcSize
When srcSize is small,
the nb of symbols produced is likely too small to warrant dedicated probability tables.
In which case, predefined distribution tables will be used instead.

There is a cheap algorithm in btultra initialization :
it presumes default distribution will be used if srcSize <= 1024.

btultra2 now uses the same threshold to shut down probability estimation,
since measured frequencies won't be used at entropy stage,
and therefore relying on them to determine sequence cost is misleading,
resulting in worse compression ratios.

This fixes btultra2 performance issue on very small input.

Note that, a proper way should be
to determine which symbol is going to use predefined probaility
and which symbol is going to use dynamic ones.
But the current algorithm is unable to make a "per-symbol" decision.
So this will require significant modifications.
2018-12-18 12:32:58 -08:00
Yann Collet
517d8c984c
Merge pull request #1449 from facebook/ovlog_def
overlapLog default values
2018-12-18 09:45:53 -08:00
Yann Collet
373ff8b983 play around with rescale weights 2018-12-17 15:48:34 -08:00
Yann Collet
8be145a8c1 fixed default job size 2018-12-13 16:38:08 -08:00
Nick Terrell
75fa3f2eb7
Merge pull request #1446 from terrelln/overflow
[libzstd] Fix infinite loop in decompression
2018-12-13 16:21:15 -08:00
Yann Collet
62180b27d5 zstdmt parameter getter/setter use int 2018-12-13 15:47:34 -08:00
Nick Terrell
aaea4ef924 [libzstd] Fix infinite loop in decompression
When we switched `ZSTD_SKIPPABLEHEADERSIZE` to a macro, the places where we do:

    MEM_readLE32(ptr) + ZSTD_SKIPPABLEHEADERSIZE

can now overflow `(unsigned)-8` to `0` and we infinite loop. We now check
the frame size and reject sizes that overflow a U32.

Note that this bug never made it into a release, and was only in the dev branch
for a few days.

Credit to OSS-Fuzz
2018-12-13 15:13:19 -08:00
Yann Collet
34f01e600f fixed multiple conversions
from 64-bit to 32-bit
2018-12-13 14:02:22 -08:00
Yann Collet
1993f5d412 fixed ovlog tests
and updated man page
2018-12-12 21:09:14 -08:00
Yann Collet
f2f86d369b Merge branch 'btultra2' into ovlog_def 2018-12-12 20:58:14 -08:00
Yann Collet
9a92ed401d updated compression results.csv
and fixed nit
2018-12-12 20:30:09 -08:00
Yann Collet
9792acda3b Merge branch 'dev' into btultra2 2018-12-12 20:18:27 -08:00
Yann Collet
7bb8dfc62f new overlapLog default values
varies between 6 and 9, depending on strategy
2018-12-11 18:10:29 -08:00
Yann Collet
eee789b7ea continued: changed to overlapLog
in deeper code layer.
for consistency.
2018-12-11 17:41:42 -08:00
Yann Collet
9b784dec7f changed parameter name to ZSTD_c_overlapLog
from overlapSizeLog.

Reasoning :
`overlapLog` is already used everwhere, in the code, command line and documentation.
`ZSTD_c_overlapSizeLog` feels unnecessarily different.
2018-12-11 16:55:33 -08:00
Yann Collet
52b94f902c add clarification for ZSTD_CCtx_setPledgedSrcSize()
as requested in #1391
2018-12-11 12:08:21 -08:00
Yann Collet
9c3265a53f
Merge pull request #1417 from facebook/advancedAPI
Advanced API
2018-12-10 18:48:15 -08:00
Yann Collet
5e6aaa3abb fixed btultra2 usage with prefix
notably while using multi-threading
2018-12-10 18:45:03 -08:00
Yann Collet
3619c34399 fix assert position within ZSTD_compress2() 2018-12-10 17:42:35 -08:00
Yann Collet
5a1e01e5f1 clarified experimentalParam 2018-12-10 17:36:20 -08:00
Yann Collet
c226a7b9f3 fixed ZSTD_compress2()
as suggested by @terrelln
2018-12-10 17:33:49 -08:00
Yann Collet
37e314a68d updated clevel table for large inputs 2018-12-09 22:38:05 -08:00
Yann Collet
c9c4c7ec8c update clevel table for 256K 2018-12-08 21:40:08 -08:00
Yann Collet
8075d75f9c update clevel table for 128K 2018-12-08 10:42:55 -08:00
Yann Collet
95b152ab33 updated clevel table for 16K
to introduce btultra2
2018-12-07 20:12:43 -08:00
Yann Collet
d613fd9afe linked btultra2 as strategy9
and ensure zstdbench detects out-of-bound parameters
2018-12-06 19:27:37 -08:00
Yann Collet
34aa401afd updated documentation
introducing ZSTD_btultra2
2018-12-06 17:22:19 -08:00
Yann Collet
ae370b0e12 minor bound refinements 2018-12-06 16:51:17 -08:00
Yann Collet
39e28982cf introduced constants ZSTD_STRATEGY_MIN and ZSTD_STRATEGY_MAX 2018-12-06 16:16:16 -08:00
Yann Collet
c3c3488981 fixed c++ assignment to enum 2018-12-06 15:57:55 -08:00
Yann Collet
be9e561da4 changed ZSTD_c_compressionStrategy into ZSTD_c_strategy
also : fixed paramgrill, and limit conditions
2018-12-06 15:00:52 -08:00
Yann Collet
e9448cdf4c introduced strategy btultra2
note : not yet applied on any compression level
2018-12-06 13:38:09 -08:00
Yann Collet
0c404a48f0 moved ZSTD_WINDOWLOG_LIMIT_DEFAULT into static-linking-only area 2018-12-06 10:57:19 -08:00
Yann Collet
96d887429b clarified usage of word "job"
only applies in MT / async context now.
2018-12-06 10:14:34 -08:00
Yann Collet
3583d19c4e changed parameter names from ZSTD_p_* to ZSTD_c_*
for naming consistency
2018-12-05 17:26:02 -08:00
Yann Collet
c2053310e5 updated API documentation 2018-12-05 16:23:00 -08:00
Yann Collet
3e042d5cc0 ZSTD_decompressDCtx() is compatible with sticky parameters 2018-12-04 17:30:58 -08:00
Yann Collet
d7da3fc90a merge dedicated dParam setters 2018-12-04 17:06:48 -08:00
Yann Collet
4b5a4f02d7 write the switch()case: differently
so that it please both
compilers which warn for dead code after the switch
and
compilers which do not detect that all branches terminate.
2018-12-04 16:59:26 -08:00
Yann Collet
85b02bf142 fixed silent conversion warning 2018-12-04 15:57:16 -08:00
Yann Collet
aec945f0dc implemented ZSTD_dParam_getBounds()
and ZSTD_DCtx_setParameter()
2018-12-04 15:35:37 -08:00
Yann Collet
34e146f548 advanced decompression function replaces by normal streaming one
advanced parameters compatible with ZSTD_decompressStream().
2018-12-04 10:28:36 -08:00
Yann Collet
7ef7dc561a check availability of --color=never command on grep and egrep
before applying them.
Fixes #1436
2018-12-03 15:46:55 -08:00
Yann Collet
6ced8f7c7c joined normal streaming API with advanced one 2018-12-03 14:22:38 -08:00
Yann Collet
da1f3066a3 preparative for ZSTD_DCtx_setParameter() 2018-11-30 15:59:50 -08:00
Yann Collet
d8e215cbee created ZSTD_compress2() and ZSTD_compressStream2()
ZSTD_compress_generic() is renamed ZSTD_compressStream2().

Note that, for the time being,
the "stable" API and advanced one use different parameter planes :
setting parameters using the advanced API does not influence ZSTD_compressStream()
and using ZSTD_initCStream() does not influence parameters for ZSTD_compressStream2().
2018-11-30 11:25:56 -08:00
Mitchell Grenier
a424899637 Fix buck for lib 2018-11-30 13:45:16 +00:00
Yann Collet
d3a0c71259 pushed experimental parameters
into ZSTD_STATIC_LINKING_ONLY section
2018-11-21 16:18:55 -08:00
Yann Collet
d4d4e109e9 getParameter fills an int*
rather than an unsigned*
for consistency
since type of setParameter() changed to int.
2018-11-21 15:37:26 -08:00
Yann Collet
fea920615c promote ZSTD_findFrameCompressedSize() into staging area 2018-11-21 15:25:50 -08:00
Yann Collet
41c7d0b1e1 changed hashEveryLog into hashRateLog 2018-11-21 14:36:57 -08:00
Yann Collet
5d3592398d fixed fall-through 2018-11-20 16:09:33 -08:00
Yann Collet
5c6d4b18ac completed implementation of ZSTD_cParam_getBounds()
for all parameters
2018-11-20 16:06:00 -08:00
Yann Collet
2e7fd6a2cb fixed remaining searchLength invocations 2018-11-20 15:13:27 -08:00
Yann Collet
e874dacc08 changed searchLength into minMatch
refactored all relevant API and calls
for consistency.
2018-11-20 14:56:07 -08:00
Yann Collet
114bd4346e changed enum type name to ZSTD_ResetDirective
for naming consistency :
types should start with a capital letter (after prefix)
2018-11-20 12:00:20 -08:00
Yann Collet
3b838abf97 ZSTD_CCtx_setParameter : value argument is now int
for compatibility with compression level
2018-11-20 11:53:01 -08:00
Yann Collet
19e5f2a35b removed some constants and _simpleArgs() from staging
constants that *may* change in the future
will be accessed through functions instead
(to be created).

_simpleArgs() variant do not have (yet) a clear enough added value
to deserve "stable" status.
2018-11-19 17:38:15 -08:00
Ryan Schmidt
ef4df0df4a Fix i386 build failure "Junk character 13" 2018-11-16 02:16:21 -06:00
Yann Collet
5c68639186 updated ZSTD_DCtx_reset()
signature and behavior is now the same as ZSTD_CCtx_reset()
2018-11-15 16:12:39 -08:00
Yann Collet
06c8d5a4f4 Merge branch 'dev' into advancedAPI
fixed rsyncable
2018-11-15 10:51:24 -08:00
Nick Terrell
b9693d3a49 [lib] Add rsyncable mode
- Add rsyncable mode to multithreaded mode
- Factor out LDM's hash function for reuse
2018-11-14 16:59:57 -08:00
Yann Collet
21a42bf5f9 added advanced decompression api 2018-11-14 16:54:54 -08:00
Yann Collet
cf9f4b63b8 fixed fuzz test src code 2018-11-14 14:46:49 -08:00
Yann Collet
7b0391e37e finalized retrofit of ZSTD_CCtx_reset()
updated all depending sources
2018-11-14 13:05:35 -08:00
Yann Collet
ff8d371708 modified ZSTD_CCtx_reset()
which now accepts an enum,
to distinguish between resetting the session, or the parameters (or both).

removed ZSTD_CCtx_resetParameters(), which is redundant.

start replacing invocation of ZSTD_CCtx_reset*() functions

Updated advanced API documentation

trimmed down amount of API staged in RC,
in particular, all functions related to ZSTD_CCtxParams()
seem too advanced.
2018-11-14 12:33:57 -08:00
Yann Collet
d7e10a774a added constant ZSTD_WINDOWLOG_LIMIT_DEFAULT
answering #1407.

Also : removed obsolete function ZSTD_setDStreamParameter()
which could only be used with one parameter (DStream_p_maxWindowSize).
Now replaced by ZSTD_DCtx_setWindowSize() (which exists since a few revisions)
2018-11-13 18:12:34 -08:00
Yann Collet
2c8fde538f added constant ZSTD_MAGIC_SKIPPABLE_MASK
and updated several API comments
2018-11-13 17:36:35 -08:00
Yann Collet
b83d1e7714 removed some static const variables
and replaced by traditional macro constants.

Unfortunately, C doesn't consider `static const` to mean "constant"
2018-11-13 16:56:32 -08:00
Yann Collet
768a264200 Merge branch 'dev' of github.com:facebook/zstd into dev 2018-11-13 15:56:36 -08:00
Yann Collet
092c4abd4c bumped version number to v1.3.8 2018-11-13 15:53:38 -08:00
Yann Collet
f28af025d9
Merge pull request #1413 from felixhandte/attach-dict-fix-unsigned-compare
Fix #1412: Perform Signed Comparison When Setting Attach Dict Param
2018-11-12 17:53:11 -08:00
Yann Collet
626040ab53 changed PREFETCH() macro into PREFETCH_L2()
which is more accurate
2018-11-12 17:05:32 -08:00
W. Felix Handte
5faef4d378 Const 2018-11-12 14:48:42 -08:00
W. Felix Handte
2d9332eb21 Fix Types 2018-11-12 12:52:31 -08:00
W. Felix Handte
4127de5fa6 Switch Enum to Only Non-Negative Values, Update Comments 2018-11-12 12:47:47 -08:00
W. Felix Handte
596f7d1256 Fix #1412: Perform Signed Comparison When Setting Attach Dict Param 2018-11-12 12:07:57 -08:00
Yann Collet
7b0c551bff
Merge pull request #1411 from facebook/prefetch_dict
Improves decompression speed when using cold dictionary
2018-11-09 11:31:35 -08:00
Yann Collet
1b4a9c518b
Merge pull request #1410 from facebook/prefetch_dec
improve long-range decoder speed
2018-11-08 18:41:58 -08:00
Yann Collet
483759a3de Improves decompression speed when using cold dictionary
by triggering the prefetching decoder path
(which used to be dedicated to long-range offsets only).

Figures on my laptop :
no content prefetch : ~300 MB/s (for reference)
full content prefetch : ~325 MB/s (before this patch)
new prefetch path : ~375 MB/s (after this patch)

The benchmark speed is already significant,
but another side-effect is that this version
prefetch less data into memory,
since it only prefetches what's needed, instead of the full dictionary.

This is supposed to help highly active environments
such as active databases,
that can't be properly measured in benchmark environment (too clean).

Also :
fixed the largeNbDict test program
which was working improperly when setting nbBlocks > nbFiles.
2018-11-08 17:00:23 -08:00
Yann Collet
20fb9e7f36 reduced assertion strength
one limit case can apparently be generated during fuzzer tests
2018-11-08 12:57:34 -08:00
Yann Collet
9126da5b5c improve long-range decoder speed
on enwik9 at level 22 (which is almost a worst case scenario),
speed improves by +7% on my laptop (415 -> 445 MB/s)
2018-11-08 12:47:46 -08:00
Yann Collet
8bed4012bd fixed decompression-only benchmark 2018-11-08 12:36:39 -08:00
Nick Terrell
a8daa2d683 Signal before unlocking in pool.c 2018-11-08 10:45:53 -08:00
Bartosz Szreder
5c5c476338 Prevent deadlock on malloc() failure. 2018-11-08 10:29:31 +01:00
Yann Collet
e0701d3c5d
Merge pull request #1404 from facebook/T36302429
fixed T36302471
2018-11-06 11:53:20 -08:00
Yann Collet
3e5cdf1b6a fixed T36302429 2018-11-05 17:50:30 -08:00
Yann Collet
2caa995558 just add an assert() in ZSTD_insertBtAndGetAllMatches()
to express a condition on ll0 .
May help static analyzer as in #1397
2018-11-05 17:13:32 -08:00
Yann Collet
3a90229616
Merge pull request #1395 from facebook/decompressblock
created zstd_decompress_block module
2018-10-29 16:28:09 -07:00
Yann Collet
acd75a1448 fixed a second memset() on NULL
not sure why it only triggers now,
this code has been around for a while.

Introduced a new error code : dstBuffer_null,
I couldn't express anything even remotely similar with existing error codes set.
2018-10-29 15:03:57 -07:00
Yann Collet
9c58098200 fixed memcpy() on NULL warning
memcpy(NULL, src, 0) is undefined behavior.
2018-10-29 13:57:37 -07:00
Yann Collet
ea966c8fb1
Merge pull request #1396 from facebook/huf_refactor
refactor HUF_compress_internal for clarity
2018-10-29 13:06:45 -07:00
Yann Collet
fc20b3c441 added flag -Wc++-compat
for library and cli
2018-10-26 16:38:23 -07:00
Yann Collet
c3c7deb1e1
Merge pull request #1392 from coetry/dev
provide consistent spacing to enum field
2018-10-26 15:29:07 -07:00
Yann Collet
1866bd374a Merge branch 'dev' into huf_Refactor 2018-10-26 15:25:01 -07:00
Yann Collet
8d56f4baee added a few comments for clarifications 2018-10-26 15:21:52 -07:00
Yann Collet
450356b5af Merge branch 'dev' into decompressblock 2018-10-26 15:03:43 -07:00
Yann Collet
7d4960a5e8
Merge pull request #1390 from facebook/nullAsOutput
support decompressing an empty frame into NULL
2018-10-26 14:43:16 -07:00
Allen Hai
3783720f70 vertically align code comment 2018-10-26 16:16:06 -05:00
Yann Collet
7b74405150 refactor HUF_compress_internal for clarity
changed workspace parameter convention
to always provide workspaceSize,
so that size can be explicitly checked.

Also, use more enum to make the meaning of some parameters more explicit.
2018-10-26 13:21:37 -07:00
Allen Hai
26e34d8a73 provide consistent spacing to enum field 2018-10-25 18:45:20 -05:00
Yann Collet
2b4914082e created zstd_decompress_block module
isolate all logic associated with block decompression
into its own module.

zstd_decompress is still in charge
of context creation/destruction,
frames, headers, streaming, special blocks, etc.

Compressed blocks themselves are now handled within zstd_decompress_block .
2018-10-25 16:28:41 -07:00
Yann Collet
cb320a9fc0 added comment on public ddict functions 2018-10-24 16:50:03 -07:00
Yann Collet
806a5c84e4 support decompressing an empty frame into NULL
fix #1385
decompressing into NULL was an automatic error.
It is now allowed, as long as the content of the frame is empty.

Seems to simplify things for `arrow`.
Maybe some other projects rely on this behavior ?
2018-10-24 16:34:35 -07:00
Yann Collet
debff3929b fixed warnings in testpools 2018-10-24 10:36:06 -07:00
Yann Collet
cc3612e1c5 added simple guard macros
in case of accidental multi-includes
2018-10-23 17:55:23 -07:00
Yann Collet
ccd2d426fc separate DDict logic into its own module
created zstd_ddict.c within lib/decompress
2018-10-23 17:25:49 -07:00
Yann Collet
f181799082 fix decodecorpus incorrect frame generation
fix #1379
decodecorpus was generating one extraneous byte when `nbSeq==0`.
This is disallowed by the specification.

The reference decoder was just skipping the extraneous byte.
It is now stricter, and flag such situation as an error.
2018-10-20 18:56:21 -07:00
Yann Collet
1e6208e75e bumped version number to v1.3.7
updated documentation
2018-10-11 14:40:12 -07:00
Ori Livneh
f31715f5e0 Enable use of bswap intrinsics in clang
Necessary because clang disguises itself as an older (__GNUC_MINOR__ = 2) GCC.
2018-10-11 15:01:09 -04:00
Yann Collet
6ed3b526e4 restored bitMask for shift values
since corrupted bitstreams can generate too large values.

This slightly reduces the benefits from clang on my laptop.
gcc results and code generation are not affected.
2018-10-10 18:29:50 -07:00
Yann Collet
c012e9540a removed one assert()
that can be triggered by a corrupted bitstream.
2018-10-10 17:33:04 -07:00
Yann Collet
7791f192ee removed one assert()
which can be triggered when input is corrupted.
2018-10-10 16:39:15 -07:00
Yann Collet
d3ec23313d improved decompression speed
while reviewing #1364,
I found a decompression speed improvement.

On my laptop, the new code decompresses +5-6% faster on clang
and +2-3% faster on gcc.

not bad for an accidental optimization...
2018-10-10 15:48:43 -07:00
Yann Collet
942df522cc
Merge pull request #1361 from facebook/streamdoc
Clarify streaming api doc
2018-10-08 19:19:34 -07:00
W. Felix Handte
b8235be865 Avoid Searching Dictionary in ZSTD_btlazy2 When an Optimal Match is Found
Bailing here is important to avoid reading past the end of the input buffer.
2018-10-08 15:59:32 -07:00
W. Felix Handte
d121b3451c Clean Up Debug Log Statements 2018-10-08 15:59:32 -07:00
W. Felix Handte
08da9ad316 Remove Unused Variable 2018-10-08 15:59:32 -07:00
Yann Collet
8fc79fac07 clarify streaming api doc
as suggested by @indygreg in #1360
2018-10-08 15:53:29 -07:00
Yann Collet
11cd2ea43d finalized minor warnings on Haiku 2018-10-03 16:37:50 -07:00
Yann Collet
bc93b801f0
Merge pull request #1330 from korli/haiku
Enable building zstd on Haiku.
2018-10-03 13:36:00 -07:00
Jerome Duval
87c10e2f58 Enable building zstd on Haiku. 2018-10-03 09:51:56 +02:00
Yann Collet
22ddf3523a fixed msan warning
on btlazy2 strategy with dictAttach
2018-10-02 18:20:20 -07:00
Yann Collet
c9843ec232
Merge pull request #1348 from facebook/donotdelete
Fix #1082
2018-10-02 16:37:58 -07:00
Yann Collet
3ca6261223 fixed static analyzer warnings
note : for some reason,
scan-build version on my laptop found problems within fastcover.c
that scan-build on travisCI does not flag.

They are, as usual, false positive :
the analyzer does not understand that a table (`offset`) is correctly filled before usage.
2018-10-02 15:59:11 -07:00
Yann Collet
228c6e5147
Merge pull request #1317 from felixhandte/split-logs
Independent Dictionary and Working Context Table Logs
2018-10-01 17:20:12 -07:00
W. Felix Handte
5b296869df Revert Ability to Set HashLog and ChainLog on Context When Dict is Attached
This capability is not needed / used in the current unit of work. I'll
re-introduce it later, when we start allowing users to override the deduced
working context logs.
2018-10-01 13:28:13 -07:00
W. Felix Handte
c2369fedc4 Restore Passing CParams to ZSTD_insertAndFindFirstIndex_internal 2018-09-28 17:12:54 -07:00
W. Felix Handte
bad74c4781 Use Working Ctx Logs when not in DMS Mode
We pre-hash the ptr for the dict match state sometimes. When that actually
happens, a hashlog of 0 can produce undefined behavior (right shift a long
long by 64). Only applies to unoptimized compilations, since when
optimizations are applied, those hash operations are dropped when we're not
actually in dms mode.
2018-09-28 17:12:54 -07:00
W. Felix Handte
c38acff94f When Attaching Dictionary, Size Working Tables Based on Input Size Only 2018-09-28 17:12:54 -07:00
W. Felix Handte
9d87d50878 Remove Log Overriding for the Time Being 2018-09-28 17:12:54 -07:00
W. Felix Handte
77fd17d93f Remove Strategy-Dependency in Making Attachment Decision 2018-09-28 17:12:54 -07:00
W. Felix Handte
00c088b32d Support Split Logs in ZSTD_btopt..ZSTD_btultra 2018-09-28 17:12:54 -07:00
W. Felix Handte
0783492178 Bump Split Log Support to ZSTD_btultra 2018-09-28 17:12:54 -07:00