Attempting to fix the build on older GCC versions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178604 91177308-0d34-0410-b5e6-96231b3b80d8
hylsd · Apr 3, 2013 · 95a16c4 · 95a16c4
1 parent a964ad5
commit 95a16c4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp
@@ -113,7 +113,8 @@ static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX,
 }
 
 static bool OSHasAVXSupport() {
-#if defined(__GNUC__)
+#if defined( __GNUC__ ) && \
+    (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 4)
   int rEAX, rEDX;
   __asm__ ("xgetbv" : "=a" (rEAX), "=d" (rEDX) : "c" (0)); 
 #elif defined(_MSC_VER)