Author: d0k
Date: Thu Apr 18 17:49:48 2013
New Revision: 179806
URL: http://llvm.org/viewvc/llvm-project?rev=179806&view=rev
Log:
Add comment to describe cleverness.
Modified:
cfe/trunk/lib/Basic/TargetInfo.cpp
Modified: cfe/trunk/lib/Basic/TargetInfo.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/TargetInfo.cpp?rev=179806&r1=179805&r2=179806&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/TargetInfo.cpp (original)
+++ cfe/trunk/lib/Basic/TargetInfo.cpp Thu Apr 18 17:49:48 2013
@@ -373,6 +373,8 @@ bool TargetInfo::validateOutputConstrain
Name++;
}
+ // If a constraint allows neither memory nor register operands it contains
+ // only modifiers. Reject it.
return Info.allowsMemory() || Info.allowsRegister();
}
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