[fuzz] Only set HUF_repeat_valid if loaded table has all non-zero weights (#1898)

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Fixes a fuzz issue where dictionary_round_trip failed because the compressor was generating corrupt files thanks to zero weights in the table.

* Only setting loaded dict huf table to valid on non-zero

* Adding hasNoZeroWeights test to fse tables

* Forbiding nbBits != 0 when weight == 0

* Reverting the last commit

* Setting table log to 0 when weight == 0

* Small (invalid) zero weight dict test

* Small (valid) zero weight dict test

* Initializing repeatMode vars to check before zero check

* Removing FSE changes to seperate pr

* Reverting accidentally changed file

* Negating bool, using unsigned, optimization nit

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This commit is contained in:

Bimba Shrestha

2019-11-26 12:24:19 -08:00

committed by Nick Terrell

parent d6e0a44576

commit a3a3c62b81

5 changed files with 32 additions and 7 deletions

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tests/dict-files/zero-weight-dict

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