[PATCH] Properly update AA metadata when performing call slot optimization

[hfinkel at anl.gov]

LGTM.


================
Comment at: lib/Transforms/Scalar/MemCpyOptimizer.cpp:754
@@ +753,3 @@
+  // Update AA metadata
+  unsigned KnownIDs[] = {
+    LLVMContext::MD_tbaa,
----------------
Please at least add a FIXME here about properly combining MD_tbaa_struct and MD_mem_parallel_loop_access.

http://reviews.llvm.org/D7482

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