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-rw-r--r--passes/opt/pmux2shiftx.cc19
1 files changed, 4 insertions, 15 deletions
diff --git a/passes/opt/pmux2shiftx.cc b/passes/opt/pmux2shiftx.cc
index 9f226e12d..f3b1fd377 100644
--- a/passes/opt/pmux2shiftx.cc
+++ b/passes/opt/pmux2shiftx.cc
@@ -19,6 +19,7 @@
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
+#include "kernel/ffinit.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
@@ -30,7 +31,7 @@ struct OnehotDatabase
bool verbose = false;
bool initialized = false;
- pool<SigBit> init_ones;
+ FfInitVals initvals;
dict<SigSpec, pool<SigSpec>> sig_sources_db;
dict<SigSpec, bool> sig_onehot_cache;
pool<SigSpec> recursion_guard;
@@ -44,19 +45,7 @@ struct OnehotDatabase
log_assert(!initialized);
initialized = true;
- for (auto wire : module->wires())
- {
- auto it = wire->attributes.find(ID::init);
- if (it == wire->attributes.end())
- continue;
-
- auto &val = it->second;
- int width = std::max(GetSize(wire), GetSize(val));
-
- for (int i = 0; i < width; i++)
- if (val[i] == State::S1)
- init_ones.insert(sigmap(SigBit(wire, i)));
- }
+ initvals.set(&sigmap, module);
for (auto cell : module->cells())
{
@@ -119,7 +108,7 @@ struct OnehotDatabase
bool found_init_ones = false;
for (auto bit : sig) {
- if (init_ones.count(bit)) {
+ if (initvals(bit) == State::S1) {
if (found_init_ones) {
if (verbose)
log("%*s - non-onehot init value\n", indent, "");