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limex: implement variable shift NFA engines

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Replaces the old LimEx NFA engines, which were specialised for model
size and number of shifts, with a new set of engines that can handle a
variable number of shifts.
This commit is contained in:
Kirill Rybalchenko
2016-04-21 16:52:43 +01:00
committed by Matthew Barr
parent cdaf705a87
commit 9d2403e8bb
21 changed files with 264 additions and 693 deletions
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29
src/nfa/limex_runtime.h
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@@ -73,34 +73,35 @@ struct proto_cache {
};
// Shift macros for Limited NFAs. Defined in terms of uniform ops.
// LimExNFAxxx ptr in 'limex' and the current state in 's'
#define NFA_EXEC_LIM_SHIFT(nels_type, nels_i) \
(JOIN(shift_, nels_type)( \
JOIN(and_, nels_type)(s, \
JOIN(load_, nels_type)(&limex->shift[nels_i])), \
nels_i))
limex->shiftAmount[nels_i]))
// Calculate the (limited model) successors for a given max shift. Assumes
// LimExNFAxxx ptr in 'l', current state in 's' and successors in 'succ'.
// Calculate the (limited model) successors for a number of variable shifts.
// Assumes current state in 's' and successors in 'succ'.
#define NFA_EXEC_GET_LIM_SUCC(gls_type, gls_shift) \
#define NFA_EXEC_GET_LIM_SUCC(gls_type) \
do { \
succ = \
JOIN(and_, gls_type)(s, JOIN(load_, gls_type)(&limex->shift[0])); \
switch (gls_shift) { \
case 7: \
succ = NFA_EXEC_LIM_SHIFT(gls_type, 0); \
switch (limex->shiftCount) { \
case 8: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 7)); \
case 6: \
case 7: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 6)); \
case 5: \
case 6: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 5)); \
case 4: \
case 5: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 4)); \
case 3: \
case 4: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 3)); \
case 2: \
case 3: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 2)); \
case 1: \
case 2: \
succ = JOIN(or_, gls_type)(succ, NFA_EXEC_LIM_SHIFT(gls_type, 1)); \
case 1: \
case 0: \
; \
} \