[llvm-commits] AMDIL scheduling override patch

[Villmow, Micah]

There are cases where LLVM scheduling makes assumptions that perform horrendously bad on certain types of instructions.
This patch adds a hook into the Scheduling algorithm that lets the backend override any checks that might occur when determining the node priority.

This is one of the few hooks that the AMDIL backend relies on that is currently not in the public LLVM tree.
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