[PATCH] [Polly] Put the parallel context into the function entry block

[Tobias Grosser]

No test case changes?

Otherwise LGTM

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Comment at: lib/CodeGen/LoopGenerators.cpp:296
@@ +295,3 @@
+  //      For now we assume the annotations suffice to sink the allocas to the
+  //      most recent dominating basic block which is not part of a loop.
+  BasicBlock &EntryBB = Builder.GetInsertBlock()->getParent()->getEntryBlock();
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I don't think this XXX is even needed. AFAIK clang will always allocate all stack space in the entry block.

http://reviews.llvm.org/D5582