Make disassembling of VBLEND* print immediate as a XMM/YMM register name. Fixes PR10917.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139690 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/Disassembler/X86Disassembler.cpp b/lib/Target/X86/Disassembler/X86Disassembler.cpp
index 1f1c1dc..e5774bf 100644
--- a/lib/Target/X86/Disassembler/X86Disassembler.cpp
+++ b/lib/Target/X86/Disassembler/X86Disassembler.cpp
@@ -221,6 +221,12 @@
   }
 
   switch (type) {
+  case TYPE_XMM128:
+    mcInst.addOperand(MCOperand::CreateReg(X86::XMM0 + (immediate >> 4)));
+    return;
+  case TYPE_XMM256:
+    mcInst.addOperand(MCOperand::CreateReg(X86::YMM0 + (immediate >> 4)));
+    return;
   case TYPE_MOFFS8:
   case TYPE_REL8:
     if(immediate & 0x80)