commit 7ca5e5873616c56f6ce473588a303af143b553f1
author Coby Tayree <coby.tayree@intel.com> Tue Nov 21 09:30:33 2017 +0000
committer Coby Tayree <coby.tayree@intel.com> Tue Nov 21 09:30:33 2017 +0000
tree 9758b0e16b6d532b4601a26a3d398d12d06246c3
parent 2a1c02fcbc823438f16697f939005d26d6294de2

[x86][icelake]vpclmulqdq introduction
an icelake promotion of pclmulqdq
Differential Revision: https://reviews.llvm.org/D40101

llvm-svn: 318741

llvm/lib/Support/Host.cpp

diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 046aed82..9cc21a2 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -1262,6 +1262,9 @@
   Features["pku"]             = HasLeaf7 && ((ECX >> 4) & 1);
   Features["vaes"] = HasLeaf7 && ((ECX >> 9) & 1) && HasAVXSave;
 
+  // VPCLMULQDQ (carry-less multiplication quadword)
+  Features["vpclmulqdq"] = HasLeaf7 && ((ECX >> 10) & 1) && HasAVXSave;
+
   bool HasLeafD = MaxLevel >= 0xd &&
                   !getX86CpuIDAndInfoEx(0xd, 0x1, &EAX, &EBX, &ECX, &EDX);