Index: llvm/utils/TableGen/AsmWriterEmitter.cpp
===================================================================
--- llvm/utils/TableGen/AsmWriterEmitter.cpp
+++ llvm/utils/TableGen/AsmWriterEmitter.cpp
@@ -457,9 +457,14 @@
   StringRef ClassName = AsmWriter->getValueAsString("AsmWriterClassName");
   bool PassSubtarget = AsmWriter->getValueAsInt("PassSubtarget");
 
+  // This function has some huge switch statements that causing excessive
+  // compile time in LLVM profile instrumenation build. This print function
+  // usually is not frequently called in compilation. Here we disable the
+  // profile instrumenation for this function.
   O << "/// printInstruction - This method is automatically generated by "
        "tablegen\n"
        "/// from the instruction set description.\n"
+       "__attribute__((no_profile_instrument_function))\n"
        "void "
     << Target.getName() << ClassName
     << "::printInstruction(const MCInst *MI, uint64_t Address, "