breaker needs to check all definitions of the antidepenent register to
avoid multiple defs of the same new register.
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framework. It's purpose is not to improve register allocation per se,
but to make it easier to develop powerful live range splitting. I call
it the basic allocator because it is as simple as a global allocator
can be but provides the building blocks for sophisticated register
allocation with live range splitting.
A minimal implementation is provided that trivially spills whenever it
runs out of registers. I'm checking in now to get high-level design
and style feedback. I've only done minimal testing. The next step is
implementing a "greedy" allocation algorithm that does some register
reassignment and makes better splitting decisions.
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It doesn't look like anything is wrong with the checkin,
but the new test cases expose a mem bug in AsmParser.
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in MultiSource/Benchmarks/VersaBench/beamformer/beamformer.
SmallSet.insert returns true if the element is inserted.
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configure expects LLVM Test Suite to be in projects/test-suite.
Made the "getting started" and "testing infrastructure" docs internally consistent.
Avoid confusion between llvm-test and llvm/test.
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