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(parent: c616a54) | patch

author	Nadav Rotem <nrotem@apple.com>
	Fri, 4 Jan 2013 17:48:25 +0000 (17:48 +0000)
committer	Nadav Rotem <nrotem@apple.com>
	Fri, 4 Jan 2013 17:48:25 +0000 (17:48 +0000)
commit	e1d5c4b8b9cc0070d0793b7865f6d3125eecdd94
tree	d4f057408319f5efe879901916e439da1b6ca452	tree \| snapshot
parent	c616a5408a0dbcc19ed19cc39d454bf7c2276d55	commit \| diff

LoopVectorizer:

1. Add code to estimate register pressure.
2. Add code to select the unroll factor based on register pressure.
3. Add bits to TargetTransformInfo to provide the number of registers.

llvm-svn: 171469

Domain: System / Toolchain;