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Add support for frameidx and literal immediates for instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7749 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-08-11 21:28:59 +00:00
parent 57fb6ab871
commit abb215e588
4 changed files with 84 additions and 22 deletions
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34
utils/TableGen/InstrSelectorEmitter.cpp
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@@ -117,7 +117,7 @@ void TreePatternNode::dump() const { std::cerr << *this; }
//
Pattern::Pattern(PatternType pty, DagInit *RawPat, Record *TheRec,
InstrSelectorEmitter &ise)
: PTy(pty), Result(0), TheRecord(TheRec), ISE(ise) {
: PTy(pty), ResultNode(0), TheRecord(TheRec), ISE(ise) {
// First, parse the pattern...
Tree = ParseTreePattern(RawPat);
@@ -137,7 +137,7 @@ Pattern::Pattern(PatternType pty, DagInit *RawPat, Record *TheRec,
assert(Tree->getNumChildren() == 2 && "Set with != 2 arguments?");
if (!Tree->getChild(0)->isLeaf())
error("Arg #0 of set should be a register or register class!");
Result = Tree->getChild(0)->getValueRecord();
ResultNode = Tree->getChild(0);
ResultName = Tree->getChildName(0);
Tree = Tree->getChild(1);
}
@@ -855,11 +855,14 @@ static void ReduceAllOperands(TreePatternNode *N, const std::string &Name,
/// name.
void InstrSelectorEmitter::PrintExpanderOperand(Init *Arg,
const std::string &NameVar,
Record *ArgDecl,
TreePatternNode *ArgDeclNode,
Pattern *P, bool PrintArg,
std::ostream &OS) {
if (DefInit *DI = dynamic_cast<DefInit*>(Arg)) {
Record *Arg = DI->getDef();
if (!ArgDeclNode->isLeaf())
P->error("Expected leaf node as argument!");
Record *ArgDecl = ArgDeclNode->getValueRecord();
if (Arg->isSubClassOf("Register")) {
// This is a physical register reference... make sure that the instruction
// requested a register!
@@ -882,8 +885,28 @@ void InstrSelectorEmitter::PrintExpanderOperand(Init *Arg,
OS << NameVar;
if (PrintArg) OS << ")";
return;
} else if (Arg->getName() == "frameidx") {
if (!PrintArg) P->error("Cannot define a new frameidx value!");
OS << ".addFrameIndex(" << NameVar << ")";
return;
}
P->error("Unknown operand type '" + Arg->getName() + "' to expander!");
} else if (IntInit *II = dynamic_cast<IntInit*>(Arg)) {
if (!NameVar.empty())
P->error("Illegal to specify a name for a constant initializer arg!");
// Hack this check to allow R32 values with 0 as the initializer for memory
// references... FIXME!
if (ArgDeclNode->isLeaf() && II->getValue() == 0 &&
ArgDeclNode->getValueRecord()->getName() == "R32") {
OS << ".addReg(0)";
} else {
if (ArgDeclNode->isLeaf() || ArgDeclNode->getOperator()->getName()!="imm")
P->error("Illegal immediate int value '" + itostr(II->getValue()) +
"' operand!");
OS << ".addZImm(" << II->getValue() << ")";
}
return;
}
P->error("Unknown operand type to expander!");
}
@@ -1201,7 +1224,8 @@ void InstrSelectorEmitter::run(std::ostream &OS) {
std::string ArgNameVal =
getArgName(P, DIInst->getArgName(0), Operands);
PrintExpanderOperand(DIInst->getArg(0), ArgNameVal,
R, P, false, OS << ", ");
InstPat->getResultNode(), P, false,
OS << ", ");
}
OS << ")";
@@ -1210,7 +1234,7 @@ void InstrSelectorEmitter::run(std::ostream &OS) {
getArgName(P, DIInst->getArgName(i), Operands);
PrintExpanderOperand(DIInst->getArg(i), ArgNameVal,
InstPat->getArgRec(i-hasResult), P, true, OS);
InstPat->getArg(i-hasResult), P, true, OS);
}
OS << ";\n";