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Improve tblgen code cleanliness: create an unknown_class, from which the unknown def inherits. Make tblgen check for that class, rather than checking for the def itself.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163664 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2012-09-11 23:47:08 +00:00
parent d2c699706c
commit 83c0eefa3b
3 changed files with 5 additions and 4 deletions
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4
utils/TableGen/CodeGenDAGPatterns.cpp
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@ -1535,7 +1535,7 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
const CodeGenRegisterClass &RC =
CDP.getTargetInfo().getRegisterClass(RegClass);
MadeChange |= UpdateNodeType(ResNo, RC.getValueTypes(), TP);
} else if (ResultNode->getName() == "unknown") {
} else if (ResultNode->isSubClassOf("unknown_class")) {
// Nothing to do.
} else {
assert(ResultNode->isSubClassOf("RegisterClass") &&
@ -1602,7 +1602,7 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
MadeChange |= Child->UpdateNodeType(ChildResNo, VT, TP);
} else if (OperandNode->isSubClassOf("PointerLikeRegClass")) {
MadeChange |= Child->UpdateNodeType(ChildResNo, MVT::iPTR, TP);
} else if (OperandNode->getName() == "unknown") {
} else if (OperandNode->isSubClassOf("unknown_class")) {
// Nothing to do.
} else
llvm_unreachable("Unknown operand type!");