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add emitter support for integer constants and simple physreg references.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96663 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-02-19 07:49:56 +00:00
parent 45a2d7d44a
commit 906b4995ee
3 changed files with 57 additions and 5 deletions
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43
include/llvm/CodeGen/DAGISelHeader.h
View File

@ -172,6 +172,11 @@ bool CheckOrImmediate(SDValue V, int64_t Val) {
return true;
}
void EmitInteger(int64_t Val, MVT::SimpleValueType VT,
SmallVectorImpl<SDValue> &RecordedNodes) {
RecordedNodes.push_back(CurDAG->getTargetConstant(Val, VT));
}
// These functions are marked always inline so that Idx doesn't get pinned to
// the stack.
ALWAYS_INLINE static int8_t
@ -218,7 +223,10 @@ enum BuiltinOpcodes {
OPC_CheckAndImm1, OPC_CheckAndImm2, OPC_CheckAndImm4, OPC_CheckAndImm8,
OPC_CheckOrImm1, OPC_CheckOrImm2, OPC_CheckOrImm4, OPC_CheckOrImm8,
OPC_CheckFoldableChainNode,
OPC_CheckChainCompatible
OPC_CheckChainCompatible,
OPC_EmitInteger1, OPC_EmitInteger2, OPC_EmitInteger4, OPC_EmitInteger8,
OPC_EmitRegister
};
struct MatchScope {
@ -417,6 +425,39 @@ SDNode *SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable,
break;
continue;
}
case OPC_EmitRegister: {
unsigned RegNo = MatcherTable[MatcherIndex++];
MVT::SimpleValueType VT =
(MVT::SimpleValueType)MatcherTable[MatcherIndex++];
SDValue Reg = CurDAG->getRegister(RegNo, VT);
RecordedNodes.push_back(N);
continue;
}
case OPC_EmitInteger1: {
MVT::SimpleValueType VT =
(MVT::SimpleValueType)MatcherTable[MatcherIndex++];
EmitInteger(GetInt1(MatcherTable, MatcherIndex), VT, RecordedNodes);
continue;
}
case OPC_EmitInteger2: {
MVT::SimpleValueType VT =
(MVT::SimpleValueType)MatcherTable[MatcherIndex++];
EmitInteger(GetInt2(MatcherTable, MatcherIndex), VT, RecordedNodes);
continue;
}
case OPC_EmitInteger4: {
MVT::SimpleValueType VT =
(MVT::SimpleValueType)MatcherTable[MatcherIndex++];
EmitInteger(GetInt4(MatcherTable, MatcherIndex), VT, RecordedNodes);
continue;
}
case OPC_EmitInteger8: {
MVT::SimpleValueType VT =
(MVT::SimpleValueType)MatcherTable[MatcherIndex++];
EmitInteger(GetInt8(MatcherTable, MatcherIndex), VT, RecordedNodes);
continue;
}
}
// If the code reached this point, then the match failed pop out to the next

2
utils/TableGen/DAGISelMatcher.h
View File

@ -386,7 +386,7 @@ public:
EmitIntegerMatcherNode(int64_t val, MVT::SimpleValueType vt)
: MatcherNode(EmitInteger), Val(val), VT(vt) {}
int64_t getVal() const { return Val; }
int64_t getValue() const { return Val; }
MVT::SimpleValueType getVT() const { return VT; }
static inline bool classof(const MatcherNode *N) {

17
utils/TableGen/DAGISelMatcherEmitter.cpp
View File

@ -213,10 +213,21 @@ EmitMatcher(const MatcherNode *N, unsigned Indent) {
<< cast<CheckChainCompatibleMatcherNode>(N)->getPreviousOp() << ",\n";
return 2;
case MatcherNode::EmitInteger:
case MatcherNode::EmitInteger: {
int64_t Val = cast<EmitIntegerMatcherNode>(N)->getValue();
OS << "OPC_EmitInteger" << ClassifyInt(Val) << ", "
<< getEnumName(cast<EmitIntegerMatcherNode>(N)->getVT()) << ", ";
return EmitInt(Val, OS)+2;
}
case MatcherNode::EmitRegister:
// FIXME: Implement.
return 0;
OS << "OPC_EmitRegister, "
<< getEnumName(cast<EmitRegisterMatcherNode>(N)->getVT()) << ", ";
if (Record *R = cast<EmitRegisterMatcherNode>(N)->getReg())
OS << getQualifiedName(R) << ",\n";
else
OS << "0 /*zero_reg*/,\n";
return 3;
}
assert(0 && "Unreachable");
return 0;