#define DEBUG_TYPE "decoder-emitter"
#include "CodeGenTarget.h"
-#include "llvm/TableGen/Record.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/TableGenBackend.h"
-
-#include <vector>
#include <map>
#include <string>
+#include <vector>
using namespace llvm;
return ValueNotSet(V) ? -1 : (V == BIT_FALSE ? 0 : 1);
}
static bit_value_t bitFromBits(const BitsInit &bits, unsigned index) {
- if (BitInit *bit = dynamic_cast<BitInit*>(bits.getBit(index)))
+ if (BitInit *bit = dyn_cast<BitInit>(bits.getBit(index)))
return bit->getValue() ? BIT_TRUE : BIT_FALSE;
// The bit is uninitialized.
switch (*I) {
default:
- throw "invalid decode table opcode";
+ PrintFatalError("invalid decode table opcode");
case MCD::OPC_ExtractField: {
++I;
unsigned Start = *I++;
OS.indent(Indentation) << "static bool checkDecoderPredicate(unsigned Idx, "
<< "uint64_t Bits) {\n";
Indentation += 2;
- OS.indent(Indentation) << "switch (Idx) {\n";
- OS.indent(Indentation) << "default: llvm_unreachable(\"Invalid index!\");\n";
- unsigned Index = 0;
- for (PredicateSet::const_iterator I = Predicates.begin(), E = Predicates.end();
- I != E; ++I, ++Index) {
- OS.indent(Indentation) << "case " << Index << ":\n";
- OS.indent(Indentation+2) << "return (" << *I << ");\n";
+ if (!Predicates.empty()) {
+ OS.indent(Indentation) << "switch (Idx) {\n";
+ OS.indent(Indentation) << "default: llvm_unreachable(\"Invalid index!\");\n";
+ unsigned Index = 0;
+ for (PredicateSet::const_iterator I = Predicates.begin(), E = Predicates.end();
+ I != E; ++I, ++Index) {
+ OS.indent(Indentation) << "case " << Index << ":\n";
+ OS.indent(Indentation+2) << "return (" << *I << ");\n";
+ }
+ OS.indent(Indentation) << "}\n";
+ } else {
+ // No case statement to emit
+ OS.indent(Indentation) << "llvm_unreachable(\"Invalid index!\");\n";
}
- OS.indent(Indentation) << "}\n";
Indentation -= 2;
OS.indent(Indentation) << "}\n\n";
}
// for decoding register classes.
// FIXME: This need to be extended to handle instructions with custom
// decoder methods, and operands with (simple) MIOperandInfo's.
- TypedInit *TI = dynamic_cast<TypedInit*>(NI->first);
- RecordRecTy *Type = dyn_cast<RecordRecTy>(TI->getType());
+ TypedInit *TI = cast<TypedInit>(NI->first);
+ RecordRecTy *Type = cast<RecordRecTy>(TI->getType());
Record *TypeRecord = Type->getRecord();
bool isReg = false;
if (TypeRecord->isSubClassOf("RegisterOperand"))
RecordVal *DecoderString = TypeRecord->getValue("DecoderMethod");
StringInit *String = DecoderString ?
- dynamic_cast<StringInit*>(DecoderString->getValue()) : 0;
+ dyn_cast<StringInit>(DecoderString->getValue()) : 0;
if (!isReg && String && String->getValue() != "")
Decoder = String->getValue();
for (unsigned bi = 0; bi < Bits.getNumBits(); ++bi) {
VarInit *Var = 0;
- VarBitInit *BI = dynamic_cast<VarBitInit*>(Bits.getBit(bi));
+ VarBitInit *BI = dyn_cast<VarBitInit>(Bits.getBit(bi));
if (BI)
- Var = dynamic_cast<VarInit*>(BI->getBitVar());
+ Var = dyn_cast<VarInit>(BI->getBitVar());
else
- Var = dynamic_cast<VarInit*>(Bits.getBit(bi));
+ Var = dyn_cast<VarInit>(Bits.getBit(bi));
if (!Var) {
if (Base != ~0U) {
<< " if (numBits == sizeof(InsnType)*8)\n"
<< " fieldMask = (InsnType)(-1LL);\n"
<< " else\n"
- << " fieldMask = ((1 << numBits) - 1) << startBit;\n"
+ << " fieldMask = (((InsnType)1 << numBits) - 1) << startBit;\n"
<< " return (insn & fieldMask) >> startBit;\n"
<< "}\n\n";
}
}
DecoderTableInfo TableInfo;
- std::set<unsigned> Sizes;
for (std::map<std::pair<std::string, unsigned>,
std::vector<unsigned> >::const_iterator
I = OpcMap.begin(), E = OpcMap.end(); I != E; ++I) {