Javed Absar 47652291c2 Improve machine schedulers for in-order processors ...

This patch enables schedulers to specify instructions that 
cannot be issued with any other instructions.
It also fixes BeginGroup/EndGroup.

Reviewed by: Andrew Trick
Differential Revision: https://reviews.llvm.org/D30744



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298885 91177308-0d34-0410-b5e6-96231b3b80d8

2017-03-27 20:46:37 +00:00

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Improve machine schedulers for in-order processors

2017-03-27 20:46:37 +00:00

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