RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-12-23 12:08:25 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Check that inherited subregisters all have a direct SubRegIndex.

Browse Source 
llvm-svn: 104755
This commit is contained in:
Jakob Stoklund Olesen 2010-05-26 22:15:07 +00:00
parent f0e15b4015
commit ee3ac9b299
1 changed files with 25 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
utils/TableGen/RegisterInfoEmitter.cpp
View File

@ -186,7 +186,7 @@ static SubRegMap &inferSubRegIndices(Record *Reg, AllSubRegMap &ASRM) {
if (SubRegs.size() != Indices.size())
throw "Register " + Reg->getName() + " SubRegIndices doesn't match SubRegs";
// First insert the direct subregs.
// First insert the direct subregs and make sure they are fully indexed.
for (unsigned i = 0, e = SubRegs.size(); i != e; ++i) {
if (!SRM.insert(std::make_pair(Indices[i], SubRegs[i])).second)
throw "SubRegIndex " + Indices[i]->getName()
@ -194,11 +194,18 @@ static SubRegMap &inferSubRegIndices(Record *Reg, AllSubRegMap &ASRM) {
inferSubRegIndices(SubRegs[i], ASRM);
}
// Keep track of inherited subregs and how they can be reached.
// Register -> (SubRegIndex, SubRegIndex)
typedef std::map<Record*, std::pair<Record*,Record*>, LessRecord> OrphanMap;
OrphanMap Orphans;
// Clone inherited subregs. Here the order is important - earlier subregs take
// precedence.
for (unsigned i = 0, e = SubRegs.size(); i != e; ++i) {
SubRegMap &M = ASRM[SubRegs[i]];
SRM.insert(M.begin(), M.end());
for (SubRegMap::iterator si = M.begin(), se = M.end(); si != se; ++si)
if (!SRM.insert(*si).second)
Orphans[si->second] = std::make_pair(Indices[i], si->first);
}
// Finally process the composites.
@ -228,6 +235,22 @@ static SubRegMap &inferSubRegIndices(Record *Reg, AllSubRegMap &ASRM) {
// Insert composite index. Allow overriding inherited indices etc.
SRM[BaseIdxInit->getDef()] = R2;
// R2 is now directly addressable, no longer an orphan.
Orphans.erase(R2);
}
// Now, Orphans contains the inherited subregisters without a direct index.
if (!Orphans.empty()) {
errs() << "Error: Register " << getQualifiedName(Reg)
<< " inherited subregisters without an index:\n";
for (OrphanMap::iterator i = Orphans.begin(), e = Orphans.end(); i != e;
++i) {
errs() << " " << getQualifiedName(i->first)
<< " = " << i->second.first->getName()
<< ", " << i->second.second->getName() << "\n";
}
abort();
}
return SRM;
}