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fdr_confirm_compile: literals are now < 8 bytes

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Justin Viiret 2017-06-19 15:47:36 +10:00 committed by Matthew Barr
parent d94bf2fd62
commit 64db576b9e
1 changed files with 7 additions and 15 deletions
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22
src/fdr/fdr_confirm_compile.cpp
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@ -35,6 +35,7 @@
#include "util/alloc.h"
#include "util/bitutils.h"
#include "util/compare.h"
#include "util/container.h"
#include "util/verify_types.h"
#include <algorithm>
@ -47,19 +48,6 @@ namespace ue2 {
using BC2CONF = map<BucketIndex, bytecode_ptr<FDRConfirm>>;
// return the number of bytes beyond a length threshold in all strings in lits
static
size_t thresholdedSize(const vector<hwlmLiteral> &lits, size_t threshold) {
size_t tot = 0;
for (const auto &lit : lits) {
size_t sz = lit.s.size();
if (sz > threshold) {
tot += ROUNDUP_N(sz - threshold, 8);
}
}
return tot;
}
static
u64a make_u64a_mask(const vector<u8> &v) {
assert(v.size() <= sizeof(u64a));
@ -143,6 +131,11 @@ void fillLitInfo(const vector<hwlmLiteral> &lits, vector<LitInfo> &tmpLitInfo,
static
bytecode_ptr<FDRConfirm> getFDRConfirm(const vector<hwlmLiteral> &lits,
bool make_small, bool make_confirm) {
// Every literal must fit within CONF_TYPE.
assert(all_of_in(lits, [](const hwlmLiteral &lit) {
return lit.s.size() <= sizeof(CONF_TYPE);
}));
vector<LitInfo> tmpLitInfo(lits.size());
CONF_TYPE andmsk;
fillLitInfo(lits, tmpLitInfo, andmsk);
@ -271,12 +264,11 @@ bytecode_ptr<FDRConfirm> getFDRConfirm(const vector<hwlmLiteral> &lits,
#endif
const size_t bitsToLitIndexSize = (1U << nBits) * sizeof(u32);
const size_t totalLitSize = thresholdedSize(lits, sizeof(CONF_TYPE));
// this size can now be a worst-case as we can always be a bit smaller
size_t size = ROUNDUP_N(sizeof(FDRConfirm), alignof(u32)) +
ROUNDUP_N(bitsToLitIndexSize, alignof(LitInfo)) +
sizeof(LitInfo) * lits.size() + totalLitSize;
sizeof(LitInfo) * lits.size();
size = ROUNDUP_N(size, alignof(FDRConfirm));
auto fdrc = make_zeroed_bytecode_ptr<FDRConfirm>(size);