From 67885f5d582ade8fc8ba8569e41666b2aeb81b5c Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@intel.com>
Date: Fri, 22 Dec 2017 02:41:12 +0000
Subject: [X86] Enable PRFCHW feature on KNL/KNM and all CPUs inherited from
 Broadwell.

llvm-svn: 321336
---
 llvm/lib/Target/X86/X86.td | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td
index 9a4af17ab84..7e7c3556909 100644
--- a/llvm/lib/Target/X86/X86.td
+++ b/llvm/lib/Target/X86/X86.td
@@ -639,7 +639,8 @@ def : HaswellProc<"core-avx2">; // Legacy alias.
 
 def BDWFeatures : ProcessorFeatures<HSWFeatures.Value, [
   FeatureADX,
-  FeatureRDSEED
+  FeatureRDSEED,
+  FeaturePRFCHW
 ]>;
 class BroadwellProc<string Name> : ProcModel<Name, BroadwellModel,
                                              BDWFeatures.Value, [
@@ -676,7 +677,8 @@ def KNLFeatures : ProcessorFeatures<IVBFeatures.Value, [
   FeatureLZCNT,
   FeatureBMI,
   FeatureBMI2,
-  FeatureFMA
+  FeatureFMA,
+  FeaturePRFCHW
 ]>;
 
 // FIXME: define KNL model
-- 
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