mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2026-07-20 22:25:49 +00:00
Code Activity

twine

Browse source
This commit is contained in:
Emil J. Tywoniak 2026-06-05 12:04:19 +02:00
parent 3d27e83d0f
commit 3424c00cd0
63 changed files with 2635 additions and 503 deletions
Download patch file Download diff file Expand all files Collapse all files

15
kernel/mem.cc
View file

@ -888,7 +888,14 @@ Cell *Mem::extract_rdff(int idx, FfInitVals *initvals) {
if (!port.clk_enable)
return nullptr;
std::string mem_src = get_src_attribute();
// Keep src as a "@N" reference into the design's twine pool throughout
// — never flatten to a literal path string. That way every addX call
// below adopts the same slot as Mem itself (via set_src_attribute's
// "@N" parse_ref path), and there's no flatten → re-intern → pipe-
// leaf round-trip on cells whose src is a Concat node.
TwinePool *src_pool = (module && module->design) ? &module->design->src_twines : nullptr;
std::string mem_src = (src_pool && src_id_ != Twine::Null) ?
TwinePool::format_ref(src_id_) : std::string();
Cell *c;
@ -994,8 +1001,10 @@ Cell *Mem::extract_rdff(int idx, FfInitVals *initvals) {
IdString name = stringf("$%s$rdreg[%d]", memid, idx);
FfData ff(module, initvals, name);
if (!mem_src.empty())
ff.attributes[ID::src] = mem_src;
// Carry mem's src into the ff via the OwnedTwine handle — same
// pool, direct id retain. emit() transfers verbatim.
if (src_pool && src_id_ != Twine::Null)
ff.src_twine = OwnedTwine(src_pool, src_id_);
ff.width = GetSize(port.data);
ff.has_clk = true;
ff.sig_clk = port.clk;