From: Craig Topper <craig.topper@intel.com>
Date: Wed, 13 Feb 2019 18:21:36 +0000 (+0000)
Subject: [X86] Add 'fxsr' to the getHostCPUFeatures detection code.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=acb7bf3cf985b38a505eb3a5be0569ecab7770ba;p=llvm

[X86] Add 'fxsr' to the getHostCPUFeatures detection code.

We implicitly mark this feature as enabled when the target is 64-bits, but our detection code for -march=native didn't support it so you can't detect it on 32-bit targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353963 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp
index 1b907bc6284..367fd188a1f 100644
--- a/lib/Support/Host.cpp
+++ b/lib/Support/Host.cpp
@@ -1259,6 +1259,7 @@ bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
 
   Features["cmov"]   = (EDX >> 15) & 1;
   Features["mmx"]    = (EDX >> 23) & 1;
+  Features["fxsr"]   = (EDX >> 24) & 1;
   Features["sse"]    = (EDX >> 25) & 1;
   Features["sse2"]   = (EDX >> 26) & 1;