[llvm-commits] [llvm] r94482 - /llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp

[Sean Callanan]

Author: spyffe
Date: Mon Jan 25 19:00:10 2010
New Revision: 94482

URL: http://llvm.org/viewvc/llvm-project?rev=94482&view=rev
Log:
Added the implementation of the Intel-specific
TargetAsmLexer.

Modified:
    llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp

Modified: llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp?rev=94482&r1=94481&r2=94482&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp (original)
+++ llvm/trunk/lib/Target/X86/AsmParser/X86AsmLexer.cpp Mon Jan 25 19:00:10 2010
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Target/TargetAsmLexer.h"
 #include "llvm/Target/TargetRegistry.h"
 #include "llvm/MC/MCAsmInfo.h"
@@ -113,7 +114,32 @@
 }
 
 AsmToken X86AsmLexer::LexTokenIntel() {
-  return AsmToken(AsmToken::Error, "", 0);
+  const AsmToken &lexedToken = lexDefinite();
+  
+  switch(lexedToken.getKind()) {
+  default:
+    return AsmToken(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);
+    
+    if (regID) {
+      return AsmToken(AsmToken::Register,
+                      lexedToken.getString(),
+                      static_cast<int64_t>(regID));
+    }
+    else {
+      return AsmToken(lexedToken);
+    }
+  }
+  }
 }
 
 extern "C" void LLVMInitializeX86AsmLexer() {