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allow regs to be in multiple reg classes

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23540 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-09-30 01:33:48 +00:00
parent b48d2cf5eb
commit 0d0b73e9f8
1 changed files with 2 additions and 18 deletions
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20
utils/TableGen/RegisterInfoEmitter.cpp
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@ -101,8 +101,6 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
const std::vector<CodeGenRegisterClass> &RegisterClasses = const std::vector<CodeGenRegisterClass> &RegisterClasses =
Target.getRegisterClasses(); Target.getRegisterClasses();
std::set<Record*> RegistersFound;
// Loop over all of the register classes... emitting each one. // Loop over all of the register classes... emitting each one.
OS << "namespace { // Register classes...\n"; OS << "namespace { // Register classes...\n";
@ -121,10 +119,6 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
<< "[] = {\n "; << "[] = {\n ";
for (unsigned i = 0, e = RC.Elements.size(); i != e; ++i) { for (unsigned i = 0, e = RC.Elements.size(); i != e; ++i) {
Record *Reg = RC.Elements[i]; Record *Reg = RC.Elements[i];
if (RegistersFound.count(Reg))
throw "Register '" + Reg->getName() +
"' included in multiple register classes!";
RegistersFound.insert(Reg);
OS << getQualifiedName(Reg) << ", "; OS << getQualifiedName(Reg) << ", ";
// Keep track of which regclasses this register is in. // Keep track of which regclasses this register is in.
@ -232,18 +226,8 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
unsigned SpillAlign = Reg.DeclaredSpillAlignment; unsigned SpillAlign = Reg.DeclaredSpillAlignment;
for (; I != E; ++I) { // For each reg class this belongs to. for (; I != E; ++I) { // For each reg class this belongs to.
const CodeGenRegisterClass *RC = I->second; const CodeGenRegisterClass *RC = I->second;
if (SpillSize == 0) SpillSize = std::max(SpillSize, RC->SpillSize);
SpillSize = RC->SpillSize; SpillAlign = std::max(SpillAlign, RC->SpillAlignment);
else if (SpillSize != RC->SpillSize)
throw "Spill size for regclass '" + RC->getName() +
"' doesn't match spill sized already inferred for register '" +
Reg.getName() + "'!";
if (SpillAlign == 0)
SpillAlign = RC->SpillAlignment;
else if (SpillAlign != RC->SpillAlignment)
throw "Spill alignment for regclass '" + RC->getName() +
"' doesn't match spill sized already inferred for register '" +
Reg.getName() + "'!";
} }
OS << SpillSize << ", " << SpillAlign << " },\n"; OS << SpillSize << ", " << SpillAlign << " },\n";