mirror of
https://github.com/verilator/verilator.git
synced 2026-10-07 10:33:13 +02:00
551 lines
25 KiB
C++
551 lines
25 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
|
|
//*************************************************************************
|
|
// DESCRIPTION: Verilator: Interface typedef capture helper
|
|
//
|
|
// Code available from: https://verilator.org
|
|
//
|
|
//*************************************************************************
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify it
|
|
// under the terms of either the GNU Lesser General Public License Version 3
|
|
// or the Perl Artistic License Version 2.0.
|
|
// SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
|
|
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
|
|
//
|
|
//*************************************************************************
|
|
|
|
// ARCHITECTURE - Separation of Concerns (do not change without reading):
|
|
//
|
|
// Each captured REFDTYPE carries its own capture record (a VIfaceCaptureTag,
|
|
// see AstRefDType::captureTagp): the cell path from its owner module to the
|
|
// interface, the interface's name, and whether the target is a typedef or a
|
|
// parameter type. Nothing here points into the AST, so a freed reference
|
|
// takes its record with it, and a cloned reference shares it.
|
|
//
|
|
// 1. CAPTURE (V3LinkDot, primary pass):
|
|
// captureTypedefContext() / addParamType() tag the reference.
|
|
//
|
|
// 2. PARAMETERIZATION (V3Param):
|
|
// After a module is cloned, and after an interface cell is specialized,
|
|
// V3Param walks that one module and retargets its tagged references by
|
|
// cell path, so widths computed during parameterization use the
|
|
// specialized interface.
|
|
//
|
|
// 3. TARGET RESOLUTION (finalizeIfaceCapture, after V3Param):
|
|
// Walks every tagged reference in a live module, follows its cell path
|
|
// from its owner module and retargets it by name, then clears all tags.
|
|
//
|
|
|
|
#include "V3LinkDotIfaceCapture.h"
|
|
|
|
#include "V3Error.h"
|
|
#include "V3Global.h"
|
|
#include "V3Stats.h"
|
|
#include "V3SymTable.h"
|
|
|
|
#include <unordered_map>
|
|
#include <unordered_set>
|
|
|
|
VL_DEFINE_DEBUG_FUNCTIONS;
|
|
|
|
std::deque<VIfaceCaptureTag> V3LinkDotIfaceCapture::s_tags{};
|
|
bool V3LinkDotIfaceCapture::s_enabled = true;
|
|
|
|
// LCOV_EXCL_START
|
|
void V3LinkDotIfaceCapture::enable(bool flag) {
|
|
s_enabled = flag;
|
|
if (!flag) clearModuleCache();
|
|
}
|
|
// LCOV_EXCL_STOP
|
|
|
|
void V3LinkDotIfaceCapture::reset() {
|
|
s_tags.clear();
|
|
clearModuleCache();
|
|
}
|
|
|
|
// Per-module cache of statement-level names to avoid O(N*M) linear scans.
|
|
// Lazily built on first access for a given module; cleared at phase boundaries.
|
|
// Uses vectors per name to handle rare cases where different node types share a name
|
|
// (e.g. a Typedef and a ParamTypeDType both named 'sc_tag_status_t').
|
|
namespace {
|
|
struct StmtNameMap final {
|
|
std::unordered_map<string, std::vector<AstNode*>> m_byName;
|
|
};
|
|
std::unordered_map<AstNodeModule*, StmtNameMap> s_moduleCache;
|
|
|
|
const StmtNameMap& getOrBuild(AstNodeModule* modp) {
|
|
auto it = s_moduleCache.find(modp);
|
|
if (it != s_moduleCache.end()) return it->second;
|
|
StmtNameMap& cache = s_moduleCache[modp];
|
|
for (AstNode* stmtp = modp->stmtsp(); stmtp; stmtp = stmtp->nextp()) {
|
|
const string& nm = stmtp->name();
|
|
if (!nm.empty()) cache.m_byName[nm].push_back(stmtp);
|
|
}
|
|
return cache;
|
|
}
|
|
} // namespace
|
|
|
|
void V3LinkDotIfaceCapture::clearModuleCache() { s_moduleCache.clear(); }
|
|
|
|
AstIfaceRefDType* V3LinkDotIfaceCapture::ifaceRefFromVarDType(AstNodeDType* dtypep) {
|
|
AstIfaceRefDType* resultp = nullptr;
|
|
for (AstNodeDType* curp = dtypep; curp;) {
|
|
if (AstIfaceRefDType* const irefp = VN_CAST(curp, IfaceRefDType)) {
|
|
resultp = irefp;
|
|
break;
|
|
} else if (AstBracketArrayDType* const bracketp = VN_CAST(curp, BracketArrayDType)) {
|
|
curp = bracketp->subDTypep();
|
|
} else if (AstUnpackArrayDType* const unpackp = VN_CAST(curp, UnpackArrayDType)) {
|
|
curp = unpackp->subDTypep();
|
|
} else {
|
|
v3fatalSrc("ifaceRefFromVarDType: unexpected dtype " << curp->prettyTypeName()
|
|
<< " in chain");
|
|
}
|
|
}
|
|
return resultp;
|
|
}
|
|
|
|
namespace {
|
|
// Resolve the owner module name for a typedef/paramType node.
|
|
// Returns hint if non-empty, otherwise walks backp() to find the owner module name.
|
|
string resolveOwnerName(const string& hint, AstNode* nodep) {
|
|
if (!hint.empty()) return hint;
|
|
if (!nodep) return "";
|
|
AstNodeModule* const ownerp = V3LinkDotIfaceCapture::findOwnerModule(nodep);
|
|
return ownerp ? ownerp->name() : string{};
|
|
}
|
|
} // namespace
|
|
|
|
AstTypedef* V3LinkDotIfaceCapture::findTypedefInModule(AstNodeModule* modp, const string& name) {
|
|
AstTypedef* resultp = nullptr;
|
|
const StmtNameMap& cache = getOrBuild(modp);
|
|
const auto it = cache.m_byName.find(name);
|
|
if (!(it == cache.m_byName.end())) {
|
|
for (AstNode* nodep : it->second) {
|
|
if (AstTypedef* const tdp = VN_CAST(nodep, Typedef)) {
|
|
resultp = tdp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return resultp;
|
|
}
|
|
AstNodeDType* V3LinkDotIfaceCapture::findDTypeInModule(AstNodeModule* modp, const string& name,
|
|
VNType type) {
|
|
|
|
AstNodeDType* resultp = nullptr;
|
|
const StmtNameMap& cache = getOrBuild(modp);
|
|
const auto it = cache.m_byName.find(name);
|
|
if (!(it == cache.m_byName.end())) {
|
|
for (AstNode* nodep : it->second) {
|
|
if (AstNodeDType* const dtp = VN_CAST(nodep, NodeDType)) {
|
|
if (dtp->type() == type) {
|
|
resultp = dtp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return resultp;
|
|
}
|
|
AstParamTypeDType* V3LinkDotIfaceCapture::findParamTypeInModule(AstNodeModule* modp,
|
|
const string& name) {
|
|
|
|
AstParamTypeDType* resultp = nullptr;
|
|
const StmtNameMap& cache = getOrBuild(modp);
|
|
const auto it = cache.m_byName.find(name);
|
|
if (!(it == cache.m_byName.end())) {
|
|
for (AstNode* nodep : it->second) {
|
|
if (AstParamTypeDType* const ptdp = VN_CAST(nodep, ParamTypeDType)) {
|
|
resultp = ptdp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return resultp;
|
|
}
|
|
|
|
bool V3LinkDotIfaceCapture::retargetRefToModule(AstRefDType* refp, AstNodeModule* targetModp) {
|
|
const VIfaceCaptureTag* const tagp = refp->captureTagp();
|
|
UASSERT_OBJ(tagp, refp, "Retarget of a reference that was not captured");
|
|
UASSERT_OBJ(targetModp, refp, "Retarget to a null module");
|
|
|
|
if (tagp->m_kind == VIfaceCaptureTag::Kind::PARAM_TYPE) {
|
|
AstParamTypeDType* const paramTypep = findParamTypeInModule(targetModp, refp->name());
|
|
if (!paramTypep) return false;
|
|
retargetRefToParamType(refp, paramTypep);
|
|
return true;
|
|
}
|
|
|
|
AstTypedef* const typedefp = findTypedefInModule(targetModp, refp->name());
|
|
if (!typedefp) return false;
|
|
retargetRefToTypedef(refp, typedefp);
|
|
return true;
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::retargetRefToParamType(AstRefDType* refp,
|
|
AstParamTypeDType* paramTypep) {
|
|
UASSERT_OBJ(paramTypep, refp, "Retarget to a null parameter type");
|
|
refp->refDTypep(paramTypep);
|
|
refp->dtypep(paramTypep);
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::retargetRefToTypedef(AstRefDType* refp, AstTypedef* typedefp) {
|
|
UASSERT_OBJ(typedefp, refp, "Retarget to a null typedef");
|
|
refp->typedefp(typedefp);
|
|
// An incomplete typedef is still a successful name resolution, but
|
|
// must not erase type links that a later width pass can complete.
|
|
if (AstNodeDType* const dtypep = typedefp->subDTypep()) {
|
|
refp->refDTypep(dtypep);
|
|
refp->dtypep(dtypep);
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
using LiveNodes = std::unordered_set<const AstNode*>;
|
|
|
|
// A scoped snapshot of every node currently in the tree. V3Broken::isLinkable()
|
|
// cannot serve this role: its table is populated only while V3Broken::brokenAll()
|
|
// runs and is cleared before it returns.
|
|
LiveNodes collectLiveNodes() {
|
|
LiveNodes liveNodes;
|
|
v3Global.rootp()->foreach([&](AstNode* nodep) { liveNodes.insert(nodep); });
|
|
return liveNodes;
|
|
}
|
|
|
|
// Find the module that owns this node; a snapshot, if given, stops the walk at a stale link.
|
|
AstNodeModule* findOwnerModuleImpl(AstNode* nodep, const LiveNodes* liveNodesp) {
|
|
for (AstNode* curp = nodep; curp; curp = curp->backp()) {
|
|
if (liveNodesp && !liveNodesp->count(curp)) return nullptr;
|
|
if (AstNodeModule* const modp = VN_CAST(curp, NodeModule)) return modp;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
AstNodeModule* findOwnerModuleIfLive(AstNode* nodep, const LiveNodes& liveNodes) {
|
|
return findOwnerModuleImpl(nodep, &liveNodes);
|
|
}
|
|
|
|
bool moduleMatchesOwner(const AstNodeModule* modp, const string& ownerName) {
|
|
if (!modp || ownerName.empty()) return false;
|
|
return modp->name() == ownerName || modp->origName() == ownerName;
|
|
}
|
|
} // namespace
|
|
|
|
AstNodeModule* V3LinkDotIfaceCapture::findOwnerModule(AstNode* nodep) {
|
|
return findOwnerModuleImpl(nodep, nullptr);
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::dumpEntries(const string& label) {
|
|
UINFO(9, "========== iface capture dumpEntries: " << label << " ==========");
|
|
int idx = 0;
|
|
v3Global.rootp()->foreach([&](AstRefDType* refp) {
|
|
const VIfaceCaptureTag* const tagp = captureTag(refp);
|
|
if (!tagp) return;
|
|
const AstNodeModule* const ownerModp = findOwnerModule(refp);
|
|
UINFO(9, " [" << idx << "] ref=" << refp->name() << " refp=" << cvtToHex(refp)
|
|
<< " ownerMod=" << (ownerModp ? ownerModp->name() : "<null>")
|
|
<< " cellPath='" << tagp->m_cellPath << "' ownerModName='"
|
|
<< tagp->m_ownerModName << "' kind="
|
|
<< (tagp->m_kind == VIfaceCaptureTag::Kind::PARAM_TYPE ? "param type"
|
|
: "typedef"));
|
|
++idx;
|
|
});
|
|
UINFO(9, "========== end iface capture dumpEntries (" << idx << " captured) ==========");
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::tag(AstRefDType* refp, const AstNodeModule* capturedInp,
|
|
VIfaceCaptureTag::Kind kind, const string& cellPath,
|
|
const string& ownerModName) {
|
|
UASSERT_OBJ(!refp->captureTagp(), refp, "Reference captured twice");
|
|
UASSERT_OBJ(capturedInp, refp, "Captured reference is not in a module");
|
|
UASSERT_OBJ(!cellPath.empty(), refp, "Captured reference has no cell path");
|
|
s_tags.emplace_back(VIfaceCaptureTag{kind, cellPath, ownerModName, capturedInp->origName()});
|
|
refp->captureTagp(&s_tags.back());
|
|
}
|
|
|
|
const VIfaceCaptureTag* V3LinkDotIfaceCapture::captureTag(AstRefDType* refp) {
|
|
const VIfaceCaptureTag* const tagp = refp->captureTagp();
|
|
if (!tagp) return nullptr;
|
|
const AstNodeModule* const ownerp = findOwnerModule(refp);
|
|
if (!ownerp || ownerp->origName() != tagp->m_capturedInName) return nullptr;
|
|
return tagp;
|
|
}
|
|
|
|
// Walk a dot-separated cell path through the cell / IFACEREFDTYPE hierarchy
|
|
// starting from startModp. Returns the module at the end of the path, or
|
|
// nullptr if any component cannot be resolved.
|
|
// Cell/port names are preserved across clones by cloneTree, so this works
|
|
// identically on template and cloned modules.
|
|
AstNodeModule* V3LinkDotIfaceCapture::followCellPath(AstNodeModule* startModp,
|
|
const string& cellPath) {
|
|
if (cellPath.empty() || !startModp) return nullptr;
|
|
AstNodeModule* curModp = startModp;
|
|
string remaining = cellPath;
|
|
while (!remaining.empty() && curModp) {
|
|
string component;
|
|
const size_t dotPos = remaining.find('.');
|
|
if (dotPos == string::npos) {
|
|
component = remaining;
|
|
remaining.clear();
|
|
} else {
|
|
component = remaining.substr(0, dotPos);
|
|
remaining = remaining.substr(dotPos + 1);
|
|
}
|
|
// Matched without any array index; the elements of an instance array (see V3Param) all
|
|
// instantiate the same module, so any of them will do
|
|
const string componentBase = AstNode::nameNoArray(component);
|
|
AstNodeModule* nextModp = nullptr;
|
|
for (AstNode* sp = curModp->stmtsp(); sp; sp = sp->nextp()) {
|
|
if (AstCell* const cellp = VN_CAST(sp, Cell)) {
|
|
if ((cellp->name() == component
|
|
|| AstNode::nameNoArray(cellp->name()) == componentBase)
|
|
&& cellp->modp()) {
|
|
nextModp = cellp->modp();
|
|
break;
|
|
}
|
|
}
|
|
if (AstVar* const varp = VN_CAST(sp, Var)) {
|
|
if (varp->isIfaceRef() && varp->subDTypep()) {
|
|
string varBaseName = varp->name();
|
|
const size_t viftopPos = varBaseName.find("__Viftop");
|
|
if (viftopPos != string::npos) {
|
|
varBaseName = varBaseName.substr(0, viftopPos);
|
|
}
|
|
if (varBaseName == component
|
|
|| AstNode::nameNoArray(varBaseName) == componentBase) {
|
|
if (AstIfaceRefDType* const irefp
|
|
= ifaceRefFromVarDType(varp->subDTypep())) {
|
|
AstIface* const ifacep = irefp->ifaceViaCellp();
|
|
if (ifacep) {
|
|
nextModp = ifacep;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
curModp = nextModp;
|
|
}
|
|
return curModp;
|
|
}
|
|
|
|
// replaces the lambda used in V3LinkDot.cpp for iface capture
|
|
void V3LinkDotIfaceCapture::captureTypedefContext(AstRefDType* refp, const char* stageLabel,
|
|
int dotPos, const std::string& dotText,
|
|
VSymEnt* dotSymp, AstNodeModule* modp,
|
|
const std::function<std::string()>& indentFn) {
|
|
if (!enabled() || !refp) return;
|
|
|
|
UINFO(9, indentFn() << "iface capture capture request stage=" << stageLabel
|
|
<< " typedef=" << refp << " name=" << refp->name() << " dotPos=" << dotPos
|
|
<< " dotText='" << dotText << "' dotSym=" << dotSymp);
|
|
|
|
const AstCell* ifaceCellp = nullptr;
|
|
if (dotSymp && VN_IS(dotSymp->nodep(), Cell)) {
|
|
const AstCell* const cellp = VN_AS(dotSymp->nodep(), Cell);
|
|
if (cellp->modp() && VN_IS(cellp->modp(), Iface)) ifaceCellp = cellp;
|
|
}
|
|
if (!ifaceCellp) {
|
|
UINFO(9, indentFn() << "iface capture capture skipped typedef=" << refp
|
|
<< " (no iface context)");
|
|
return;
|
|
}
|
|
// Skip internal interface typedef references (typedef used within its own interface)
|
|
if (ifaceCellp->modp() == modp) {
|
|
UINFO(9, indentFn() << "iface capture capture skipped typedef=" << refp
|
|
<< " (internal to interface " << modp->name() << ")");
|
|
return;
|
|
}
|
|
|
|
// dotText is always non-empty for interface typedef captures. If this
|
|
// fires, the caller resolved to an interface Cell but did not accumulate
|
|
// a dotText path - investigate the dot-state in visitParseRef.
|
|
UASSERT_OBJ(!dotText.empty(), refp, "captureTypedefContext: dotText empty");
|
|
const string cellPath = dotText;
|
|
|
|
// A reference to a ParamTypeDType is captured as a parameter type, else as a typedef
|
|
if (AstParamTypeDType* const paramTypep = VN_CAST(refp->refDTypep(), ParamTypeDType)) {
|
|
V3LinkDotIfaceCapture::addParamType(refp, cellPath, modp, paramTypep, "");
|
|
} else {
|
|
tag(refp, modp, VIfaceCaptureTag::Kind::TYPEDEF, cellPath,
|
|
resolveOwnerName("", refp->typedefp()));
|
|
}
|
|
|
|
UINFO(9, indentFn() << "iface capture capture success typedef=" << refp
|
|
<< " cell=" << ifaceCellp << " cellPath='" << cellPath << "'"
|
|
<< " mod=" << (ifaceCellp->modp() ? ifaceCellp->modp()->name() : "<null>")
|
|
<< " dotPos=" << dotPos);
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::addParamType(AstRefDType* refp, const string& cellPath,
|
|
AstNodeModule* ownerModp, AstParamTypeDType* paramTypep,
|
|
const string& paramTypeOwnerModName) {
|
|
UASSERT(refp, "addParamType() called with null refp");
|
|
UASSERT(ownerModp,
|
|
"addParamType() called with null ownerModp for refp='" << refp->prettyNameQ() << "'");
|
|
UASSERT_OBJ(paramTypep, refp,
|
|
"addParamType() called with null paramTypep for refp='" << refp->prettyNameQ()
|
|
<< "'");
|
|
const string ptOwnerName = resolveOwnerName(paramTypeOwnerModName, paramTypep);
|
|
UINFO(9, "addParamType: refp=" << refp << " cellPath='" << cellPath << "'"
|
|
<< " ownerModp=" << (ownerModp ? ownerModp->name() : "<null>")
|
|
<< " paramTypep=" << paramTypep << " paramTypeOwnerModName='"
|
|
<< ptOwnerName << "'");
|
|
UINFO(9, "addParamType: paramTypep subDTypep chain:");
|
|
if (debug())
|
|
paramTypep->foreach([&](AstRefDType* innerRefp) {
|
|
UINFO(9,
|
|
" inner RefDType: "
|
|
<< innerRefp << " refDTypep=" << innerRefp->refDTypep()
|
|
<< (innerRefp->refDTypep() ? " refDTypep->name=" : "")
|
|
<< (innerRefp->refDTypep() ? innerRefp->refDTypep()->prettyTypeName() : ""));
|
|
});
|
|
tag(refp, ownerModp, VIfaceCaptureTag::Kind::PARAM_TYPE, cellPath, ptOwnerName);
|
|
}
|
|
|
|
int V3LinkDotIfaceCapture::resolveCapturedRefs() {
|
|
int fixed = 0;
|
|
|
|
// TARGET RESOLUTION. By this point all cloning is complete and cell
|
|
// pointers are wired to the correct interface clones. For each tagged
|
|
// reference we walk its cell path from its owner module to find the
|
|
// correct target module, then locate the PARAMTYPEDTYPE / TYPEDEF by name.
|
|
// See the ARCHITECTURE comment above for the full picture.
|
|
|
|
v3Global.rootp()->foreach([&](AstRefDType* refp) {
|
|
const VIfaceCaptureTag* const tagp = captureTag(refp);
|
|
if (!tagp) return;
|
|
AstNodeModule* const ownerModp = findOwnerModule(refp);
|
|
if (!ownerModp || ownerModp->dead() || VN_IS(ownerModp, Package)) return;
|
|
|
|
UINFO(9, "finalizeIfaceCapture Phase3 entry: refp="
|
|
<< refp->name() << " (" << cvtToHex(refp) << ")" << " ownerMod="
|
|
<< ownerModp->name() << " cellPath='" << tagp->m_cellPath << "' targetKind="
|
|
<< (tagp->m_kind == VIfaceCaptureTag::Kind::PARAM_TYPE ? "param type"
|
|
: "typedef"));
|
|
|
|
// Prefer the owner itself when its stable template identity matches the
|
|
// captured target owner. Otherwise resolve and validate the cell path.
|
|
AstNodeModule* correctModp = nullptr;
|
|
if (moduleMatchesOwner(ownerModp, tagp->m_ownerModName)) {
|
|
correctModp = ownerModp;
|
|
} else {
|
|
correctModp = followCellPath(ownerModp, tagp->m_cellPath);
|
|
UINFO(9, " followCellPath('"
|
|
<< ownerModp->name() << "', '" << tagp->m_cellPath
|
|
<< "') = " << (correctModp ? correctModp->name() : "<null>")
|
|
<< (correctModp ? (correctModp->dead() ? " (DEAD)" : " (live)") : ""));
|
|
UASSERT_OBJ(correctModp && !correctModp->dead()
|
|
&& moduleMatchesOwner(correctModp, tagp->m_ownerModName),
|
|
refp,
|
|
"captured ref '" << refp->prettyNameQ() << "' cell path '"
|
|
<< tagp->m_cellPath << "' did not resolve to live owner '"
|
|
<< tagp->m_ownerModName << "'");
|
|
}
|
|
UASSERT_OBJ(retargetRefToModule(refp, correctModp), refp,
|
|
"could not retarget captured "
|
|
<< (tagp->m_kind == VIfaceCaptureTag::Kind::PARAM_TYPE ? "parameter type "
|
|
: "typedef ")
|
|
<< refp->prettyNameQ() << " in " << correctModp->prettyNameQ());
|
|
refp->user3(true);
|
|
++fixed;
|
|
});
|
|
|
|
return fixed;
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::verifyNoDeadRefs(const LiveNodes& liveNodes) {
|
|
// Assert: no REFDTYPE in any live module should have typedefp or refDTypep
|
|
// pointing to a dead module.
|
|
for (AstNode* nodep = v3Global.rootp()->modulesp(); nodep; nodep = nodep->nextp()) {
|
|
if (AstNodeModule* const modp = VN_CAST(nodep, NodeModule)) {
|
|
if (modp->dead()) continue;
|
|
modp->foreach([&](AstRefDType* refp) {
|
|
if (refp->typedefp()) {
|
|
UASSERT_OBJ(liveNodes.count(refp->typedefp()), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ() << "' in live module '"
|
|
<< modp->prettyNameQ()
|
|
<< "' has a dangling typedefp");
|
|
AstNodeModule* const ownerModp
|
|
= findOwnerModuleIfLive(refp->typedefp(), liveNodes);
|
|
UASSERT_OBJ(!ownerModp || !ownerModp->dead(), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ() << "' in live module '"
|
|
<< modp->prettyNameQ()
|
|
<< "' has typedefp pointing to dead module '"
|
|
<< ownerModp->prettyNameQ() << "'");
|
|
}
|
|
if (refp->refDTypep()) {
|
|
UASSERT_OBJ(liveNodes.count(refp->refDTypep()), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ() << "' in live module '"
|
|
<< modp->prettyNameQ()
|
|
<< "' has a dangling refDTypep");
|
|
AstNodeModule* const ownerModp
|
|
= findOwnerModuleIfLive(refp->refDTypep(), liveNodes);
|
|
UASSERT_OBJ(!ownerModp || !ownerModp->dead(), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ() << "' in live module '"
|
|
<< modp->prettyNameQ()
|
|
<< "' has refDTypep pointing to dead module '"
|
|
<< ownerModp->prettyNameQ() << "'");
|
|
}
|
|
});
|
|
}
|
|
}
|
|
if (v3Global.rootp()->typeTablep()) {
|
|
for (AstNode* nodep = v3Global.rootp()->typeTablep()->typesp(); nodep;
|
|
nodep = nodep->nextp()) {
|
|
nodep->foreach([&](AstRefDType* refp) {
|
|
if (refp->typedefp()) {
|
|
UASSERT_OBJ(liveNodes.count(refp->typedefp()), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ()
|
|
<< "' in type table has a dangling typedefp");
|
|
AstNodeModule* const ownerModp
|
|
= findOwnerModuleIfLive(refp->typedefp(), liveNodes);
|
|
UASSERT_OBJ(!ownerModp || !ownerModp->dead(), refp,
|
|
"REFDTYPE '"
|
|
<< refp->prettyNameQ()
|
|
<< "' in type table has typedefp pointing to dead module '"
|
|
<< ownerModp->prettyNameQ() << "'");
|
|
}
|
|
if (refp->refDTypep()) {
|
|
UASSERT_OBJ(liveNodes.count(refp->refDTypep()), refp,
|
|
"REFDTYPE '" << refp->prettyNameQ()
|
|
<< "' in type table has a dangling refDTypep");
|
|
AstNodeModule* const ownerModp
|
|
= findOwnerModuleIfLive(refp->refDTypep(), liveNodes);
|
|
UASSERT_OBJ(!ownerModp || !ownerModp->dead(), refp,
|
|
"REFDTYPE '"
|
|
<< refp->prettyNameQ()
|
|
<< "' in type table has refDTypep pointing to dead module '"
|
|
<< ownerModp->prettyNameQ() << "'");
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
void V3LinkDotIfaceCapture::finalizeIfaceCapture() {
|
|
if (!s_enabled) return;
|
|
UINFO(4, "finalizeIfaceCapture: fixing remaining cross-interface refs");
|
|
if (!v3Global.rootp()) return;
|
|
clearModuleCache(); // Ensure fresh view after all cloning/widthing
|
|
|
|
// Resolve live captured refs from stable path metadata before inspecting
|
|
// any inherited target pointers, which may refer to replaced template nodes.
|
|
const int capturedFixed = resolveCapturedRefs();
|
|
UINFO(4, "finalizeIfaceCapture: structurally resolved " << capturedFixed << " captured refs");
|
|
|
|
if (debug() >= 9) dumpEntries("after finalizeIfaceCapture");
|
|
|
|
// Emit statistics for --stats
|
|
V3Stats::addStat("IfaceCapture, Captured refs", s_tags.size());
|
|
V3Stats::addStat("IfaceCapture, Captured refs resolved", capturedFixed);
|
|
|
|
// No reference may be left pointing into a module about to be removed
|
|
if (v3Global.opt.debugCheck()) verifyNoDeadRefs(collectLiveNodes());
|
|
// Drop every tag before its record is freed.
|
|
v3Global.rootp()->foreach([](AstRefDType* refp) { refp->captureTagp(nullptr); });
|
|
reset();
|
|
}
|