[llvm] TableGen: Allow defining sets of runtime libraries (PR #144978)

[Matt Arsenault via llvm-commits]

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@@ -889,7 +889,41 @@ def memset : RuntimeLibcallImpl<MEMSET>;
 def calloc : RuntimeLibcallImpl<CALLOC>;
 
 } // End let IsDefault = true
-} // End defset DefaultRuntimeLibcallImpls
+} // End defset AllDefaultRuntimeLibcallImpls
+
+
+// FIXME: Should move to explicit opt-in to different sets of libcalls
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arsenm wrote:

Not yet, this is the distant future 

https://github.com/llvm/llvm-project/pull/144978