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Support multiple ValueTypes per RegisterClass, needed for upcoming vector

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work.  This change has no effect on generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24563 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman
2005-12-01 04:51:06 +00:00
parent 5dfc55c304
commit 6510b22cec
16 changed files with 119 additions and 62 deletions
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28
utils/TableGen/CodeGenTarget.cpp
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@ -154,13 +154,15 @@ CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
R->setName("AnonRegClass_"+utostr(AnonCounter++));
}
Namespace = R->getValueAsString("Namespace");
SpillSize = R->getValueAsInt("Size");
SpillAlignment = R->getValueAsInt("Alignment");
VT = getValueType(R->getValueAsDef("RegType"));
MethodBodies = R->getValueAsCode("MethodBodies");
MethodProtos = R->getValueAsCode("MethodProtos");
std::vector<Record*> TypeList = R->getValueAsListOfDefs("RegTypes");
for (unsigned i = 0, e = TypeList.size(); i != e; ++i) {
Record *Type = TypeList[i];
if (!Type->isSubClassOf("ValueType"))
throw "RegTypes list member '" + Type->getName() +
"' does not derive from the ValueType class!";
VTs.push_back(getValueType(Type));
}
assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!");
std::vector<Record*> RegList = R->getValueAsListOfDefs("MemberList");
for (unsigned i = 0, e = RegList.size(); i != e; ++i) {
@ -170,6 +172,15 @@ CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
"' does not derive from the Register class!";
Elements.push_back(Reg);
}
// Allow targets to override the size in bits of the RegisterClass.
unsigned Size = R->getValueAsInt("Size");
Namespace = R->getValueAsString("Namespace");
SpillSize = Size ? Size : MVT::getSizeInBits(VTs[0]);
SpillAlignment = R->getValueAsInt("Alignment");
MethodBodies = R->getValueAsCode("MethodBodies");
MethodProtos = R->getValueAsCode("MethodProtos");
}
const std::string &CodeGenRegisterClass::getName() const {
@ -179,7 +190,8 @@ const std::string &CodeGenRegisterClass::getName() const {
void CodeGenTarget::ReadLegalValueTypes() const {
const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
for (unsigned i = 0, e = RCs.size(); i != e; ++i)
LegalValueTypes.push_back(RCs[i].VT);
for (unsigned ri = 0, re = RCs[i].VTs.size(); ri != re; ++ri)
LegalValueTypes.push_back(RCs[i].VTs[ri]);
// Remove duplicates.
std::sort(LegalValueTypes.begin(), LegalValueTypes.end());