[PATCH] Allow non-affine control flow -- Code Generation

[Sebastian Pop]

LGTM.
Let's wait for Tobi's comments before committing the change.


================
Comment at: lib/CodeGen/BlockGenerators.cpp:668
@@ +667,3 @@
+  assert(Stmt.isRegionStmt() &&
+         "Only block statements can be copied by the block generator");
+
----------------
Update the comment to "only region statements can be copied by the region generator"

http://reviews.llvm.org/D7847

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