Allow patterns to refer to physical registers that belong to multiple

register classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28323 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2006-05-16 07:05:30 +00:00
parent c14c936c79
commit 44a65fa552
3 changed files with 26 additions and 6 deletions

View File

@ -163,6 +163,23 @@ void CodeGenTarget::ReadRegisterClasses() const {
RegisterClasses.assign(RegClasses.begin(), RegClasses.end());
}
std::vector<unsigned char> CodeGenTarget::getRegisterVTs(Record *R) const {
std::vector<unsigned char> Result;
const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
const CodeGenRegisterClass &RC = RegisterClasses[i];
for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) {
if (R == RC.Elements[ei]) {
const std::vector<MVT::ValueType> &InVTs = RC.getValueTypes();
for (unsigned i = 0, e = InVTs.size(); i != e; ++i)
Result.push_back(InVTs[i]);
}
}
}
return Result;
}
CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
// Rename anonymous register classes.
if (R->getName().size() > 9 && R->getName()[9] == '.') {