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Optimized compilational algorithm: reduced output binary

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Андреев Григорий 2024-07-31 22:19:14 +03:00
parent 12a7db912f
commit fc6e8e50fe
4 changed files with 20 additions and 18 deletions
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4
building/main.cpp
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@ -1,9 +1,5 @@
#include <regexis024_build_system.h>
/*
* LIBREGEXIS024 SPECIFIC BUILD COMMANDS BEGIN
*/
struct Libregexis024BuildSystem {
/* Building runlevel */
BuildUnitsArray runlevel_1;

14
src/libregexis024fa/graph_to_bytecode/core.cpp
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@ -44,11 +44,17 @@ namespace regexis024 {
FA_NodeOfOneCharRead* ocr = dynamic_cast<FA_NodeOfOneCharRead*>(node);
nonthrowing_assert(read_ss_ns < UINT32_MAX);
cmd_READ(result, read_ss_ns++);
write_filter(result, bookmark_manager, {ocr->filter},{nodesBookmark(ocr->nxt_node)});
addBranching(ocr->nxt_node);
bool can_spill = write_filter(result, bookmark_manager, {ocr->filter},{nodesBookmark(ocr->nxt_node)});
if (!can_spill)
break;
node = ocr->nxt_node;
} else if (node->type == look_one_behind) {
FA_NodeOfLookOneBehind* lob = dynamic_cast<FA_NodeOfLookOneBehind*>(node);
write_filter(result, bookmark_manager, {lob->filter}, {nodesBookmark(lob->nxt_node)});
addBranching(lob->nxt_node);
bool can_spill = write_filter(result, bookmark_manager, {lob->filter}, {nodesBookmark(lob->nxt_node)});
if (!can_spill)
break;
node = lob->nxt_node;
} else if (node->type == forking) {
FA_NodeOfForking* fn = dynamic_cast<FA_NodeOfForking*>(node);
@ -90,7 +96,9 @@ namespace regexis024 {
branches.push_back(nodesBookmark(p.nxt_node));
addBranching(p.nxt_node);
}
write_filter(result, bookmark_manager, codesets, branches);
bool can_spill = write_filter(result, bookmark_manager, codesets, branches);
if (!can_spill)
break;
if (dcc->crossroads.empty())
break;
node = dcc->crossroads[0].nxt_node;

14
src/libregexis024fa/graph_to_bytecode/filter.cpp
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@ -5,6 +5,12 @@
#include <libregexis024fa/graph_to_bytecode/writing_commands.h>
namespace regexis024 {
struct FilterSegment {
ssize_t color;
uint32_t L;
uint32_t R;
};
std::vector<FilterSegment> convert_to_compSeg(const std::vector<codeset_t>& crossroad_codesets)
{
std::vector<FilterSegment> compSeg;
@ -63,11 +69,9 @@ namespace regexis024 {
size_t Ri;
bool second_part = false;
bookmark_id_t to_the_right_part;
RecFrame(size_t li, size_t ri): Li(li),Ri(ri) {}
};
std::vector<RecFrame> call_stack = {RecFrame(0, N - 1)};
std::vector<RecFrame> call_stack = {RecFrame{0, N - 1}};
auto is_sandwich = [&](size_t Li, size_t Ri) -> bool {
return Li + 2 == Ri && compSeg[Li].color == compSeg[Ri].color && compSeg[Li + 1].L == compSeg[Li + 1].R;
@ -105,12 +109,12 @@ namespace regexis024 {
cmd_JCGRTR(result, bookmark_manager, compSeg[m].R, cur_frame.to_the_right_part);
cur_frame.second_part = true;
/* cur_frame was just invalidated */
call_stack.emplace_back(Li, m);
call_stack.push_back({Li, m});
} else {
bookmark_manager.land_bookmark(result, cur_frame.to_the_right_part);
/* cur_frame was invalidated */
call_stack.pop_back();
call_stack.emplace_back(m + 1, Ri);
call_stack.push_back({m + 1, Ri});
}
}
}

6
src/libregexis024fa/graph_to_bytecode/filter.h
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@ -7,12 +7,6 @@
#include <libregexis024fa/graph_to_bytecode/natural_compiler_utils.h>
namespace regexis024 {
struct FilterSegment {
ssize_t color;
uint32_t L;
uint32_t R;
};
/* Return whether user of function must place [0]'th option after the filter
* The filter can end up being written in such a way that the end will never be reached */
bool write_filter(std::vector<uint8_t>& result, explicit_bookmarks& bookmark_manager,