1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 37334ad4ce..acee68c54e 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -989,6 +989,27 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
                                           NameLoc);
   }
   
+  // jmp $42,$5 -> ljmp, similarly for call.
+  if ((Name.startswith("call") || Name.startswith("jmp")) &&
+      Operands.size() == 3 &&
+      static_cast<X86Operand*>(Operands[1])->isImm() &&
+      static_cast<X86Operand*>(Operands[2])->isImm()) {
+    const char *NewOpName = StringSwitch<const char *>(Name)
+      .Case("jmp", "ljmp")
+      .Case("jmpw", "ljmpw")
+      .Case("jmpl", "ljmpl")
+      .Case("jmpq", "ljmpq")
+      .Case("call", "lcall")
+      .Case("callw", "lcallw")
+      .Case("calll", "lcalll")
+      .Case("callq", "lcallq")
+    .Default(0);
+    if (NewOpName) {
+      delete Operands[0];
+      Operands[0] = X86Operand::CreateToken(NewOpName, NameLoc);
+    }
+  }
+  
   return false;
 }