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add new Literal API for pure literal expressions:

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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.
This commit is contained in:
Hong, Yang A
2019-07-18 00:29:27 +08:00
committed by Chang, Harry
parent 8bfbf07f75
commit 23e5f06594
36 changed files with 745 additions and 116 deletions
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31
src/rose/rose_build_bytecode.cpp
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@@ -2843,34 +2843,9 @@ vector<LitFragment> groupByFragment(const RoseBuildImpl &build) {
DEBUG_PRINTF("fragment candidate: lit_id=%u %s\n", lit_id,
dumpString(lit.s).c_str());
/** 0:/xxabcdefgh/ */
/** 1:/yyabcdefgh/ */
/** 2:/yyabcdefgh.+/ */
// Above 3 patterns should firstly convert into RoseLiteralMap with
// 2 elements ("xxabcdefgh" and "yyabcdefgh"), then convert into
// LitFragment with 1 element ("abcdefgh"). Special care should be
// taken to handle the 'pure' flag during the conversion.
rose_literal_id lit_frag = getFragment(lit);
auto it = frag_info.find(lit_frag);
if (it != frag_info.end()) {
if (!lit_frag.s.get_pure() && it->first.s.get_pure()) {
struct FragmentInfo f_info = it->second;
f_info.lit_ids.push_back(lit_id);
f_info.groups |= groups;
frag_info.erase(it->first);
frag_info.emplace(lit_frag, f_info);
} else {
it->second.lit_ids.push_back(lit_id);
it->second.groups |= groups;
}
} else {
struct FragmentInfo f_info;
f_info.lit_ids.push_back(lit_id);
f_info.groups |= groups;
frag_info.emplace(lit_frag, f_info);
}
auto &fi = frag_info[getFragment(lit)];
fi.lit_ids.push_back(lit_id);
fi.groups |= groups;
}
for (auto &m : frag_info) {