MC/X86: Tweak imul recognition, previous hack only applies for the imul form
taking immediates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111950 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 3f10b8e..b4542a0 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -826,8 +826,10 @@
     Operands.erase(Operands.begin() + 2);
   }
 
-  // FIXME: Hack to handle "imul A, B" which is an alias for "imul A, B, B".
+  // FIXME: Hack to handle "imul <imm>, B" which is an alias for "imul <imm>, B,
+  // B".
   if (Name.startswith("imul") && Operands.size() == 3 &&
+      static_cast<X86Operand*>(Operands[1])->isImm() &&
       static_cast<X86Operand*>(Operands.back())->isReg()) {
     X86Operand *Op = static_cast<X86Operand*>(Operands.back());
     Operands.push_back(X86Operand::CreateReg(Op->getReg(), Op->getStartLoc(),