commit 29c227336960a83fc41a88a9e9f65aa4eff95ffc
author Craig Topper <craig.topper@gmail.com> Fri Feb 26 05:29:32 2016 +0000
committer Craig Topper <craig.topper@gmail.com> Fri Feb 26 05:29:32 2016 +0000
tree 4b4cdf7670732d353cb6a01362ff8c5fc714c3b8
parent 8f5866a7a8088b1dede1d03c7a280b254d2ecaa1

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

llvm-svn: 261977

llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp

diff --git a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
index bc2ff33..20907b4 100644
--- a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -908,10 +908,16 @@
     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.