RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-17 00:57:54 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add support in TableGen for unknown operands that infer their type from the pattern their used in. This will be used to allow insert/extract subreg patterns in .td files!

Browse Source 
llvm-svn: 48125
This commit is contained in:
Christopher Lamb 2008-03-10 04:13:41 +00:00
parent 5dd879d5b5
commit 3d7bb6ec01
2 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
utils/TableGen/CodeGenDAGPatterns.cpp
View File

@ -864,7 +864,7 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
CDP.getTargetInfo().getInstruction(getOperator()->getName());
// Apply the result type to the node
if (NumResults == 0 || InstInfo.NumDefs == 0) {
MadeChange = UpdateNodeType(MVT::isVoid, TP);
MadeChange = UpdateNodeType(MVT::isVoid, TP);
} else {
Record *ResultNode = Inst.getResult(0);
@ -872,6 +872,10 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
std::vector<unsigned char> VT;
VT.push_back(MVT::iPTR);
MadeChange = UpdateNodeType(VT, TP);
} else if (ResultNode->getName() == "unknown") {
std::vector<unsigned char> VT;
VT.push_back(MVT::isUnknown);
MadeChange = UpdateNodeType(VT, TP);
} else {
assert(ResultNode->isSubClassOf("RegisterClass") &&
"Operands should be register classes!");
@ -910,14 +914,16 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
MadeChange |= Child->UpdateNodeType(VT, TP);
} else if (OperandNode->getName() == "ptr_rc") {
MadeChange |= Child->UpdateNodeType(MVT::iPTR, TP);
} else if (OperandNode->getName() == "unknown") {
MadeChange |= Child->UpdateNodeType(MVT::isUnknown, TP);
} else {
assert(0 && "Unknown operand type!");
abort();
}
MadeChange |= Child->ApplyTypeConstraints(TP, NotRegisters);
}
if (ChildNo != getNumChildren())
if (ChildNo != getNumChildren() && !InstInfo.isVariadic)
TP.error("Instruction '" + getOperator()->getName() +
"' was provided too many operands!");

2
utils/TableGen/CodeGenInstruction.cpp
View File

@ -163,7 +163,7 @@ CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
isVariadic = true;
continue;
} else if (!Rec->isSubClassOf("RegisterClass") &&
Rec->getName() != "ptr_rc")
Rec->getName() != "ptr_rc" && Rec->getName() != "unknown")
throw "Unknown operand class '" + Rec->getName() +
"' in instruction '" + R->getName() + "' instruction!";