Jakob Stoklund Olesen 08f5cdf5b3 Constrain register classes instead of emitting copies.
Sometimes register class constraints are trivial, like GR32->GR32_NOSP,
or GPR->rGPR.  Teach InstrEmitter to simply constrain the virtual
register instead of emitting a copy in these cases.

Normally, these copies are handled by the coalescer.  This saves some
coalescer work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-22 21:39:34 +00:00
2011-09-19 05:34:10 +00:00
2011-06-12 15:26:54 +00:00
2011-09-21 03:34:31 +00:00

Low Level Virtual Machine (LLVM)
================================

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LLVM backend for 6502
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