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Revert "[TableGen] Implement at least some support for multiple explicit results in an instruction pattern. No functional change to existing patterns."

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231358 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2015-03-05 07:17:52 +00:00
parent 256cb3b576
commit bc55462859
1 changed files with 10 additions and 10 deletions
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20
utils/TableGen/CodeGenDAGPatterns.cpp
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@ -1222,7 +1222,8 @@ static unsigned GetNumNodeResults(Record *Operator, CodeGenDAGPatterns &CDP) {
if (Operator->isSubClassOf("Instruction")) {
CodeGenInstruction &InstInfo = CDP.getTargetInfo().getInstruction(Operator);
unsigned NumDefsToAdd = InstInfo.Operands.NumDefs;
// FIXME: Should allow access to all the results here.
unsigned NumDefsToAdd = InstInfo.Operands.NumDefs ? 1 : 0;
// Add on one implicit def if it has a resolvable type.
if (InstInfo.HasOneImplicitDefWithKnownVT(CDP.getTargetInfo()) !=MVT::Other)
@ -1799,7 +1800,8 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
// Apply the result types to the node, these come from the things in the
// (outs) list of the instruction.
unsigned NumResultsToAdd = InstInfo.Operands.NumDefs;
// FIXME: Cap at one result so far.
unsigned NumResultsToAdd = InstInfo.Operands.NumDefs ? 1 : 0;
for (unsigned ResNo = 0; ResNo != NumResultsToAdd; ++ResNo)
MadeChange |= UpdateNodeTypeFromInst(ResNo, Inst.getResult(ResNo), TP);
@ -2965,7 +2967,7 @@ const DAGInstruction &CodeGenDAGPatterns::parseInstructionPattern(
// Check that all of the results occur first in the list.
std::vector<Record*> Results;
SmallVector<TreePatternNode *, 2> ResNodes;
TreePatternNode *Res0Node = nullptr;
for (unsigned i = 0; i != NumResults; ++i) {
if (i == CGI.Operands.size())
I->error("'" + InstResults.begin()->first +
@ -2977,8 +2979,8 @@ const DAGInstruction &CodeGenDAGPatterns::parseInstructionPattern(
if (!RNode)
I->error("Operand $" + OpName + " does not exist in operand list!");
ResNodes.push_back(RNode);
if (i == 0)
Res0Node = RNode;
Record *R = cast<DefInit>(RNode->getLeafValue())->getDef();
if (!R)
I->error("Operand $" + OpName + " should be a set destination: all "
@ -3053,11 +3055,9 @@ const DAGInstruction &CodeGenDAGPatterns::parseInstructionPattern(
TreePatternNode *ResultPattern =
new TreePatternNode(I->getRecord(), ResultNodeOperands,
GetNumNodeResults(I->getRecord(), *this));
// Copy fully inferred output node types to instruction result pattern.
for (unsigned i = 0; i != NumResults; ++i) {
assert(ResNodes[i]->getNumTypes() == 1 && "FIXME: Unhandled");
ResultPattern->setType(i, ResNodes[i]->getExtType(0));
}
// Copy fully inferred output node type to instruction result pattern.
for (unsigned i = 0; i != NumResults; ++i)
ResultPattern->setType(i, Res0Node->getExtType(i));
// Create and insert the instruction.
// FIXME: InstImpResults should not be part of DAGInstruction.