From 5a8386e1dfc9897bde39be2519bb5a6949623f64 Mon Sep 17 00:00:00 2001
From: Michael Liao <michael.liao@intel.com>
Date: Thu, 28 Mar 2013 22:29:53 +0000
Subject: [PATCH] Add ADX CPUID detection

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178299 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86Subtarget.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 6e66c1aa96c..fa991298a6d 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -330,6 +330,10 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
         HasRTM = true;
         ToggleFeature(X86::FeatureRTM);
       }
+      if (IsIntel && ((EBX >> 19) & 0x1)) {
+        HasADX = true;
+        ToggleFeature(X86::FeatureADX);
+      }
     }
   }
 }