Design compile time api hs_compile_lit() and hs_compile_lit_multi()
to handle pure literal pattern sets. Corresponding option --literal-on
is added for hyperscan testing suites. Extended parameters and part of
flags are not supported for this api.
- Change the compile of literal matchers to two passes.
- Reverse the bucket assignment in FDR, bucket with longer literals has
smaller bucket id.
- Squash the buckets of included literals and jump to the the program of
included literals directly from parent literal program without going
through FDR confirm for included iterals.
Move the hash table used for long literal support in streaming mode from
FDR to Rose, and introduce new instructions CHECK_LONG_LIT and
CHECK_LONG_LIT_NOCASE for doing literal confirm for long literals.
This simplifies FDR confirm, and guarantees that HWLM matchers will only
be used for literals < 256 bytes long.
