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Fix support for optional input flag.

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llvm-svn: 28784
This commit is contained in:
Evan Cheng 2006-06-14 19:27:50 +00:00
parent 242ebc9ab3
commit 191886d10f
1 changed files with 11 additions and 17 deletions
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28
utils/TableGen/DAGISelEmitter.cpp
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@ -2515,8 +2515,10 @@ public:
if (NodeHasInFlag || NodeHasOutFlag || NodeHasOptInFlag || HasImpInputs)
emitDecl("InFlag");
if (NodeHasOptInFlag)
emitCode("bool HasOptInFlag = false;");
if (NodeHasOptInFlag) {
emitCode("bool HasOptInFlag = "
"N.getOperand(N.getNumOperands()-1).getValueType() == MVT::Flag;");
}
// How many results is this pattern expected to produce?
unsigned PatResults = 0;
@ -2576,8 +2578,12 @@ public:
bool ChainEmitted = NodeHasChain;
if (NodeHasChain)
emitCode("Select(" + ChainName + ", " + ChainName + ");");
if (NodeHasInFlag || NodeHasOptInFlag || HasImpInputs)
if (NodeHasInFlag || HasImpInputs)
EmitInFlagSelectCode(Pattern, "N", ChainEmitted, true);
if (NodeHasOptInFlag) {
emitCode("if (HasOptInFlag)");
emitCode(" Select(InFlag, N.getOperand(N.getNumOperands()-1));");
}
if (isRoot) {
// The operands have been selected. Remove them from InFlightSet.
@ -2854,7 +2860,6 @@ private:
unsigned OpNo =
(unsigned) NodeHasProperty(N, SDNodeInfo::SDNPHasChain, ISE);
bool HasInFlag = NodeHasProperty(N, SDNodeInfo::SDNPInFlag, ISE);
bool HasOptInFlag = NodeHasProperty(N, SDNodeInfo::SDNPOptInFlag, ISE);
for (unsigned i = 0, e = N->getNumChildren(); i != e; ++i, ++OpNo) {
TreePatternNode *Child = N->getChild(i);
if (!Child->isLeaf()) {
@ -2894,20 +2899,9 @@ private:
}
}
if (HasInFlag || HasOptInFlag) {
std::string Code;
if (HasOptInFlag) {
emitCode("if (" + RootName + ".getNumOperands() == " + utostr(OpNo+1) +
") {");
Code = " ";
}
emitCode(Code + "Select(InFlag, " + RootName +
if (HasInFlag)
emitCode("Select(InFlag, " + RootName +
".getOperand(" + utostr(OpNo) + "));");
if (HasOptInFlag) {
emitCode(" HasOptInFlag = true;");
emitCode("}");
}
}
}
/// EmitCopyFromRegs - Emit code to copy result to physical registers