[PATCH] Partially fix memcpy / memset / memmove lowering in SelectionDAG construction if address space != 0.

[Manuel Jacob]

================
Comment at: lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4256
@@ +4255,3 @@
+  if (AS != 0 && !TLI->isNoopAddrSpaceCast(AS, 0)) {
+    report_fatal_error("FIXME: lowering arbitrarily long memcpy / memset / "
+                       "memmove intrinsics for arbitrary address spaces is not "
----------------
compnerd wrote:
> The phrasing here could be a bit better IMO.  How about:
> 
>     report_fatal_error(Twine("cannot lower memory intrinsic in address space ") + AS);
I wanted the error to be explicit about the fact that lowering memory intrinsics is partially supported.  Waiting for another opinion on this.

http://reviews.llvm.org/D7241

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