[llvm] r188865 - Add the FMA3 feature in order to test FMA encoding using the old jit.

[Nadav Rotem]

Author: nadav
Date: Wed Aug 21 00:02:12 2013
New Revision: 188865

URL: http://llvm.org/viewvc/llvm-project?rev=188865&view=rev
Log:
Add the FMA3 feature in order to test FMA encoding using the old jit.

Patch by Chris Bieneman!


Modified:
    llvm/trunk/test/lit.cfg

Modified: llvm/trunk/test/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/lit.cfg?rev=188865&r1=188864&r2=188865&view=diff
==============================================================================
--- llvm/trunk/test/lit.cfg (original)
+++ llvm/trunk/test/lit.cfg Wed Aug 21 00:02:12 2013
@@ -291,6 +291,16 @@ if re.search(r'with assertions', llc_cmd
     config.available_features.add('asserts')
 llc_cmd.wait()
 
+if 'darwin' == sys.platform:
+    try:
+        sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
+                                    stdout = subprocess.PIPE)
+    except OSError:
+        print("Could not exec sysctl")
+    if -1 != sysctl_cmd.stdout.read().find("hw.optional.fma: 1"):
+        config.available_features.add('fma3')
+    sysctl_cmd.wait()
+
 # Check if we should use gmalloc.
 use_gmalloc_str = lit_config.params.get('use_gmalloc', None)
 if use_gmalloc_str is not None: