[llvm] r261977 - [X86] Explicitly diagnose use of %xmm16-%xmm31, %ymm16-%ymm31 and %zmm16-%zmm31 when AVX512 is not enabled in the asm parser.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Thu Feb 25 23:29:32 2016
New Revision: 261977

URL: http://llvm.org/viewvc/llvm-project?rev=261977&view=rev
Log:
[X86] Explicitly diagnose use of %xmm16-%xmm31, %ymm16-%ymm31 and %zmm16-%zmm31 when AVX512 is not enabled in the asm parser.

Modified:
    llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp

Modified: llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp?rev=261977&r1=261976&r2=261977&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp (original)
+++ llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp Thu Feb 25 23:29:32 2016
@@ -908,10 +908,16 @@ bool X86AsmParser::ParseRegister(unsigne
     if (RegNo == X86::RIZ ||
         X86MCRegisterClasses[X86::GR64RegClassID].contains(RegNo) ||
         X86II::isX86_64NonExtLowByteReg(RegNo) ||
-        X86II::isX86_64ExtendedReg(RegNo))
+        X86II::isX86_64ExtendedReg(RegNo) ||
+        X86II::is32ExtendedReg(RegNo))
       return Error(StartLoc, "register %"
                    + Tok.getString() + " is only available in 64-bit mode",
                    SMRange(StartLoc, EndLoc));
+  } else if (!getSTI().getFeatureBits()[X86::FeatureAVX512]) {
+    if (X86II::is32ExtendedReg(RegNo))
+      return Error(StartLoc, "register %"
+                   + Tok.getString() + " is only available in with AVX512",
+                   SMRange(StartLoc, EndLoc));
   }
 
   // Parse "%st" as "%st(0)" and "%st(1)", which is multiple tokens.