//
//===----------------------------------------------------------------------===//
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/Target/TargetAsmLexer.h"
-#include "llvm/Target/TargetRegistry.h"
+#include "MCTargetDesc/X86BaseInfo.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
-#include "X86.h"
+#include "llvm/MC/MCTargetAsmLexer.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/ADT/SmallVector.h"
using namespace llvm;
namespace {
-class X86AsmLexer : public TargetAsmLexer {
+class X86AsmLexer : public MCTargetAsmLexer {
const MCAsmInfo &AsmInfo;
- MCAsmLexer *Lexer;
bool tentativeIsValid;
AsmToken tentativeToken;
const AsmToken &lexTentative() {
- tentativeToken = Lexer->Lex();
+ tentativeToken = getLexer()->Lex();
tentativeIsValid = true;
return tentativeToken;
}
const AsmToken &lexDefinite() {
- if(tentativeIsValid) {
+ if (tentativeIsValid) {
tentativeIsValid = false;
return tentativeToken;
}
- else {
- return Lexer->Lex();
- }
+ return getLexer()->Lex();
}
AsmToken LexTokenATT();
}
}
public:
- X86AsmLexer(const Target &T, const MCAsmInfo &MAI)
- : TargetAsmLexer(T), AsmInfo(MAI), Lexer(NULL), tentativeIsValid(false) {
- }
-
- void InstallLexer(MCAsmLexer &L) {
- Lexer = &L;
+ X86AsmLexer(const Target &T, const MCRegisterInfo &MRI, const MCAsmInfo &MAI)
+ : MCTargetAsmLexer(T), AsmInfo(MAI), tentativeIsValid(false) {
}
};
-}
+} // end anonymous namespace
-static unsigned MatchRegisterName(const StringRef &Name);
+#define GET_REGISTER_MATCHER
+#include "X86GenAsmMatcher.inc"
AsmToken X86AsmLexer::LexTokenATT() {
- const AsmToken &lexedToken = lexDefinite();
+ AsmToken lexedToken = lexDefinite();
switch (lexedToken.getKind()) {
default:
- return AsmToken(lexedToken);
+ return lexedToken;
case AsmToken::Error:
SetError(Lexer->getErrLoc(), Lexer->getErr());
- return AsmToken(lexedToken);
- case AsmToken::Percent:
- {
+ return lexedToken;
+
+ case AsmToken::Percent: {
const AsmToken &nextToken = lexTentative();
- if (nextToken.getKind() == AsmToken::Identifier) {
- unsigned regID = MatchRegisterName(nextToken.getString());
+ if (nextToken.getKind() != AsmToken::Identifier)
+ return lexedToken;
+
- if (regID) {
- lexDefinite();
+ if (unsigned regID = MatchRegisterName(nextToken.getString())) {
+ lexDefinite();
+ // FIXME: This is completely wrong when there is a space or other
+ // punctuation between the % and the register name.
+ StringRef regStr(lexedToken.getString().data(),
+ lexedToken.getString().size() +
+ nextToken.getString().size());
+
+ return AsmToken(AsmToken::Register, regStr,
+ static_cast<int64_t>(regID));
+ }
+
+ // Match register name failed. If this is "db[0-7]", match it as an alias
+ // for dr[0-7].
+ if (nextToken.getString().size() == 3 &&
+ nextToken.getString().startswith("db")) {
+ int RegNo = -1;
+ switch (nextToken.getString()[2]) {
+ case '0': RegNo = X86::DR0; break;
+ case '1': RegNo = X86::DR1; break;
+ case '2': RegNo = X86::DR2; break;
+ case '3': RegNo = X86::DR3; break;
+ case '4': RegNo = X86::DR4; break;
+ case '5': RegNo = X86::DR5; break;
+ case '6': RegNo = X86::DR6; break;
+ case '7': RegNo = X86::DR7; break;
+ }
+
+ if (RegNo != -1) {
+ lexDefinite();
+
+ // FIXME: This is completely wrong when there is a space or other
+ // punctuation between the % and the register name.
StringRef regStr(lexedToken.getString().data(),
lexedToken.getString().size() +
nextToken.getString().size());
-
- return AsmToken(AsmToken::Register,
- regStr,
- static_cast<int64_t>(regID));
- }
- else {
- return AsmToken(lexedToken);
+ return AsmToken(AsmToken::Register, regStr,
+ static_cast<int64_t>(RegNo));
}
}
- else {
- return AsmToken(lexedToken);
- }
+
+
+ return lexedToken;
}
}
}
switch(lexedToken.getKind()) {
default:
- return AsmToken(lexedToken);
+ return lexedToken;
case AsmToken::Error:
SetError(Lexer->getErrLoc(), Lexer->getErr());
- return AsmToken(lexedToken);
- case AsmToken::Identifier:
- {
- std::string upperCase = lexedToken.getString().str();
- std::string lowerCase = LowercaseString(upperCase);
- StringRef lowerRef(lowerCase);
-
- unsigned regID = MatchRegisterName(lowerRef);
+ return lexedToken;
+ case AsmToken::Identifier: {
+ unsigned regID = MatchRegisterName(lexedToken.getString().lower());
- if (regID) {
+ if (regID)
return AsmToken(AsmToken::Register,
lexedToken.getString(),
static_cast<int64_t>(regID));
- }
- else {
- return AsmToken(lexedToken);
- }
+ return lexedToken;
}
}
}
extern "C" void LLVMInitializeX86AsmLexer() {
- RegisterAsmLexer<X86AsmLexer> X(TheX86_32Target);
- RegisterAsmLexer<X86AsmLexer> Y(TheX86_64Target);
+ RegisterMCAsmLexer<X86AsmLexer> X(TheX86_32Target);
+ RegisterMCAsmLexer<X86AsmLexer> Y(TheX86_64Target);
}
-
-#define REGISTERS_ONLY
-#include "../X86GenAsmMatcher.inc"
-#undef REGISTERS_ONLY