Revision: 19476
Author: [email protected]
Date: Wed Feb 19 10:52:06 2014 UTC
Log: Narrows predicate for type bounds
[email protected]
BUG=
Review URL: https://codereview.chromium.org/170943005
http://code.google.com/p/v8/source/detail?r=19476
Modified:
/branches/bleeding_edge/src/types.h
=======================================
--- /branches/bleeding_edge/src/types.h Fri Jan 24 11:47:47 2014 UTC
+++ /branches/bleeding_edge/src/types.h Wed Feb 19 10:52:06 2014 UTC
@@ -560,6 +560,10 @@
TypeHandle upper = Type::Intersect(b.upper, t, region);
return BoundsImpl(lower, upper);
}
+
+ bool Narrows(BoundsImpl that) {
+ return that.lower->Is(this->lower) && this->upper->Is(that.upper);
+ }
};
typedef BoundsImpl<ZoneTypeConfig> Bounds;
--
--
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