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Multibyte acceleration compile side

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This commit is contained in:
Anatoly Burakov
2015-12-09 13:38:58 +00:00
committed by Matthew Barr
parent 081b3ef369
commit 87424713a7
8 changed files with 1002 additions and 13 deletions
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30
src/nfagraph/ng_limex_accel.h
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@@ -50,6 +50,12 @@ namespace ue2 {
#define MAX_MERGED_ACCEL_STOPS 200
#define ACCEL_MAX_STOP_CHAR 24
#define ACCEL_MAX_FLOATING_STOP_CHAR 192 /* accelerating sds is important */
#define MULTIACCEL_MIN_LEN 3
#define MULTIACCEL_MAX_LEN_SSE 15
#define MULTIACCEL_MAX_LEN_AVX2 31
// forward-declaration of CompileContext
struct CompileContext;
void findAccelFriends(const NGHolder &g, NFAVertex v,
const std::map<NFAVertex, BoundedRepeatSummary> &br_cyclic,
@@ -65,6 +71,25 @@ struct DoubleAccelInfo {
DoubleAccelInfo findBestDoubleAccelInfo(const NGHolder &g, NFAVertex v);
struct MultibyteAccelInfo {
/* multibyte accel schemes, ordered by strength */
enum multiaccel_type {
MAT_SHIFT,
MAT_SHIFTGRAB,
MAT_DSHIFT,
MAT_DSHIFTGRAB,
MAT_LONG,
MAT_LONGGRAB,
MAT_MAX,
MAT_NONE = MAT_MAX
};
CharReach cr;
u32 offset = 0;
u32 len1 = 0;
u32 len2 = 0;
multiaccel_type type = MAT_NONE;
};
struct AccelScheme {
AccelScheme(const CharReach &cr_in, u32 offset_in)
: cr(cr_in), offset(offset_in) {
@@ -109,6 +134,11 @@ bool nfaCheckAccel(const NGHolder &g, NFAVertex v,
const std::map<NFAVertex, BoundedRepeatSummary> &br_cyclic,
AccelScheme *as, bool allow_wide);
/** \brief Check if vertex \a v is a multi accelerable state (for a limex NFA). */
MultibyteAccelInfo nfaCheckMultiAccel(const NGHolder &g,
const std::vector<NFAVertex> &verts,
const CompileContext &cc);
} // namespace ue2
#endif