From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Wed, 4 Jan 2012 14:36:57 +0000 (+0000)
Subject: Penryn doesn't support sse4.2, don't enable it in the first place.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b3453a810407cd8d7f526c6faabe9a4c9f0a6f67;p=clang

Penryn doesn't support sse4.2, don't enable it in the first place.

While the code took care of disabling the sse42 flag it didn't know
about popcnt. This broke -march=native on penryn.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147531 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index aebb28a68e..dd85c64496 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -1568,8 +1568,7 @@ void X86TargetInfo::getDefaultFeatures(llvm::StringMap<bool> &Features) const {
     break;
   case CK_Penryn:
     setFeatureEnabled(Features, "mmx", true);
-    setFeatureEnabled(Features, "sse4", true);
-    Features["sse42"] = false;
+    setFeatureEnabled(Features, "sse4.1", true);
     break;
   case CK_Atom:
     setFeatureEnabled(Features, "mmx", true);