[PATCH] D14737: Convert some ObjC msgSends to runtime calls

[John McCall via cfe-commits]

rjmccall added inline comments.

================
Comment at: include/clang/Basic/ObjCRuntime.h:182
@@ +181,3 @@
+    switch (getKind()) {
+    case FragileMacOSX: return false;
+    case MacOSX: return getVersion() >= VersionTuple(10, 10);
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I went ahead and asked Greg, and he agreed that it's best to not enable this on the Mac fragile runtime.  The functions exist, but they aren't profitable to call, other than a small code-size decrease.


http://reviews.llvm.org/D14737