From 6af228a92a7b8414fa3c1b3c37ee659d32e66e1b Mon Sep 17 00:00:00 2001
From: Roman Divacky <rdivacky@freebsd.org>
Date: Thu, 20 Dec 2012 14:43:30 +0000
Subject: Remove MCTargetAsmLexer and its derived classes now that edis, its
 only user, is gone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170699 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/AsmParser/ARMAsmLexer.cpp  | 134 ------------------------------
 lib/Target/ARM/AsmParser/ARMAsmParser.cpp |   3 -
 lib/Target/ARM/AsmParser/CMakeLists.txt   |   1 -
 3 files changed, 138 deletions(-)
 delete mode 100644 lib/Target/ARM/AsmParser/ARMAsmLexer.cpp

(limited to 'lib/Target/ARM/AsmParser')

diff --git a/lib/Target/ARM/AsmParser/ARMAsmLexer.cpp b/lib/Target/ARM/AsmParser/ARMAsmLexer.cpp
deleted file mode 100644
index 3ada0f2..0000000
--- a/lib/Target/ARM/AsmParser/ARMAsmLexer.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-//===-- ARMAsmLexer.cpp - Tokenize ARM assembly to AsmTokens --------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/ARMBaseInfo.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCParser/MCAsmLexer.h"
-#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCTargetAsmLexer.h"
-#include "llvm/Support/TargetRegistry.h"
-#include <map>
-#include <string>
-
-using namespace llvm;
-
-namespace {
-
-class ARMBaseAsmLexer : public MCTargetAsmLexer {
-  const MCAsmInfo &AsmInfo;
-
-  const AsmToken &lexDefinite() {
-    return getLexer()->Lex();
-  }
-
-  AsmToken LexTokenUAL();
-protected:
-  typedef std::map <std::string, unsigned> rmap_ty;
-
-  rmap_ty RegisterMap;
-
-  void InitRegisterMap(const MCRegisterInfo *info) {
-    unsigned numRegs = info->getNumRegs();
-
-    for (unsigned i = 0; i < numRegs; ++i) {
-      const char *regName = info->getName(i);
-      if (regName)
-        RegisterMap[regName] = i;
-    }
-  }
-
-  unsigned MatchRegisterName(StringRef Name) {
-    rmap_ty::iterator iter = RegisterMap.find(Name.str());
-    if (iter != RegisterMap.end())
-      return iter->second;
-    else
-      return 0;
-  }
-
-  AsmToken LexToken() {
-    if (!Lexer) {
-      SetError(SMLoc(), "No MCAsmLexer installed");
-      return AsmToken(AsmToken::Error, "", 0);
-    }
-
-    switch (AsmInfo.getAssemblerDialect()) {
-    default:
-      SetError(SMLoc(), "Unhandled dialect");
-      return AsmToken(AsmToken::Error, "", 0);
-    case 0:
-      return LexTokenUAL();
-    }
-  }
-public:
-  ARMBaseAsmLexer(const Target &T, const MCAsmInfo &MAI)
-    : MCTargetAsmLexer(T), AsmInfo(MAI) {
-  }
-};
-
-class ARMAsmLexer : public ARMBaseAsmLexer {
-public:
-  ARMAsmLexer(const Target &T, const MCRegisterInfo &MRI, const MCAsmInfo &MAI)
-    : ARMBaseAsmLexer(T, MAI) {
-    InitRegisterMap(&MRI);
-  }
-};
-
-class ThumbAsmLexer : public ARMBaseAsmLexer {
-public:
-  ThumbAsmLexer(const Target &T, const MCRegisterInfo &MRI,const MCAsmInfo &MAI)
-    : ARMBaseAsmLexer(T, MAI) {
-    InitRegisterMap(&MRI);
-  }
-};
-
-} // end anonymous namespace
-
-AsmToken ARMBaseAsmLexer::LexTokenUAL() {
-  const AsmToken &lexedToken = lexDefinite();
-
-  switch (lexedToken.getKind()) {
-  default: break;
-  case AsmToken::Error:
-    SetError(Lexer->getErrLoc(), Lexer->getErr());
-    break;
-  case AsmToken::Identifier: {
-    std::string lowerCase = lexedToken.getString().lower();
-
-    unsigned regID = MatchRegisterName(lowerCase);
-    // Check for register aliases.
-    //   r13 -> sp
-    //   r14 -> lr
-    //   r15 -> pc
-    //   ip  -> r12
-    //   FIXME: Some assemblers support lots of others. Do we want them all?
-    if (!regID) {
-      regID = StringSwitch<unsigned>(lowerCase)
-        .Case("r13", ARM::SP)
-        .Case("r14", ARM::LR)
-        .Case("r15", ARM::PC)
-        .Case("ip", ARM::R12)
-        .Default(0);
-    }
-
-    if (regID)
-      return AsmToken(AsmToken::Register,
-                      lexedToken.getString(),
-                      static_cast<int64_t>(regID));
-  }
-  }
-
-  return AsmToken(lexedToken);
-}
-
-extern "C" void LLVMInitializeARMAsmLexer() {
-  RegisterMCAsmLexer<ARMAsmLexer> X(TheARMTarget);
-  RegisterMCAsmLexer<ThumbAsmLexer> Y(TheThumbTarget);
-}
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 6b42239..a836731 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -7829,13 +7829,10 @@ bool ARMAsmParser::parseDirectiveEabiAttr(SMLoc L) {
   return true;
 }
 
-extern "C" void LLVMInitializeARMAsmLexer();
-
 /// Force static initialization.
 extern "C" void LLVMInitializeARMAsmParser() {
   RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget);
   RegisterMCAsmParser<ARMAsmParser> Y(TheThumbTarget);
-  LLVMInitializeARMAsmLexer();
 }
 
 #define GET_REGISTER_MATCHER
diff --git a/lib/Target/ARM/AsmParser/CMakeLists.txt b/lib/Target/ARM/AsmParser/CMakeLists.txt
index e24a1b1..d2012c3 100644
--- a/lib/Target/ARM/AsmParser/CMakeLists.txt
+++ b/lib/Target/ARM/AsmParser/CMakeLists.txt
@@ -1,7 +1,6 @@
 include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
 
 add_llvm_library(LLVMARMAsmParser
-  ARMAsmLexer.cpp
   ARMAsmParser.cpp
   )
 
-- 
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