mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-04-24 01:25:33 +00:00
Code Activity

share: Cleanup and additional testing

Browse source 
Fixes a typo and adds another test case that triggers the fallback
behavior as the existing tests all trigger the new optimization.
This commit is contained in:
Jannis Harder 2025-04-15 12:04:09 +02:00
parent 7593b5b224
commit 4b273a4ae9
3 changed files with 36 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

16
passes/opt/share.cc
View file

@ -1013,10 +1013,10 @@ struct ShareWorker
return bits;
}
bool onesided_restrict_activiation_patterns(
bool onesided_restrict_activation_patterns(
pool<ssc_pair_t> &activation_patterns, const pool<std::pair<SigBit, State>> &other_bits)
{
pool<ssc_pair_t> new_activiation_patterns;
pool<ssc_pair_t> new_activation_patterns;
bool simplified = false;
@ -1032,22 +1032,22 @@ struct ShareWorker
simplified = true;
}
}
new_activiation_patterns.emplace(std::move(new_pair));
new_activation_patterns.emplace(std::move(new_pair));
}
activation_patterns = std::move(new_activiation_patterns);
activation_patterns = std::move(new_activation_patterns);
return simplified;
}
// Only valid if the patterns on their own (i.e. without considering their input cone) are mutually exclusive!
bool restrict_activiation_patterns(pool<ssc_pair_t> &activation_patterns, pool<ssc_pair_t> &other_activation_patterns)
bool restrict_activation_patterns(pool<ssc_pair_t> &activation_patterns, pool<ssc_pair_t> &other_activation_patterns)
{
pool<std::pair<SigBit, State>> bits = pattern_bits(activation_patterns);
pool<std::pair<SigBit, State>> other_bits = pattern_bits(other_activation_patterns);
bool simplified = false;
simplified |= onesided_restrict_activiation_patterns(activation_patterns, other_bits);
simplified |= onesided_restrict_activiation_patterns(other_activation_patterns, bits);
simplified |= onesided_restrict_activation_patterns(activation_patterns, other_bits);
simplified |= onesided_restrict_activation_patterns(other_activation_patterns, bits);
optimize_activation_patterns(activation_patterns);
optimize_activation_patterns(other_activation_patterns);
@ -1401,7 +1401,7 @@ struct ShareWorker
} else {
log(" According to the SAT solver this pair of cells can be shared. (Pattern only case)\n");
if (restrict_activiation_patterns(optimized_cell_activation_patterns, optimized_other_cell_activation_patterns)) {
if (restrict_activation_patterns(optimized_cell_activation_patterns, optimized_other_cell_activation_patterns)) {
for (auto &p : optimized_cell_activation_patterns)
log(" Simplified activation pattern for cell %s: %s = %s\n", log_id(cell), log_signal(p.first), log_signal(p.second));