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ng_extparam: split up work and do per-comp reduce

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This change breaks extparam processing up into:

 - propagateExtendedParams: propagates min_length, min_offset and
   max_offset into the reports on the graph
 - reduceExtendedParams: runs graph reductions based on extparams

Then, we apply the reduce pass to the whole graph, and later as well to
each component after calc_components.
This commit is contained in:
Justin Viiret
2017-03-23 14:10:14 +11:00
committed by Matthew Barr
parent 0a163b5535
commit a871f70c25
6 changed files with 435 additions and 214 deletions
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20
src/smallwrite/smallwrite_build.cpp
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@@ -41,6 +41,7 @@
#include "nfagraph/ng_depth.h"
#include "nfagraph/ng_holder.h"
#include "nfagraph/ng_mcclellan.h"
#include "nfagraph/ng_reports.h"
#include "nfagraph/ng_prune.h"
#include "nfagraph/ng_util.h"
#include "smallwrite/smallwrite_internal.h"
@@ -179,8 +180,23 @@ void SmallWriteBuildImpl::add(const NGHolder &g, const ExpressionInfo &expr) {
return;
}
if (expr.som || expr.min_length || isVacuous(g)) {
poisoned = true; /* cannot support in smwr */
if (expr.som) {
DEBUG_PRINTF("no SOM support in small-write engine\n");
poisoned = true;
return;
}
if (isVacuous(g)) {
DEBUG_PRINTF("no vacuous graph support in small-write engine\n");
poisoned = true;
return;
}
if (any_of_in(::ue2::all_reports(g), [&](ReportID id) {
return rm.getReport(id).minLength > 0;
})) {
DEBUG_PRINTF("no min_length extparam support in small-write engine\n");
poisoned = true;
return;
}