Dan Gohman a10756ee65 Re-implement the main strength-reduction portion of LoopStrengthReduction. ... This new version is much more aggressive about doing "full" reduction in cases where it reduces register pressure, and also more aggressive about rewriting induction variables to count down (or up) to zero when doing so reduces register pressure. It currently uses fairly simplistic algorithms for finding reuse opportunities, but it introduces a new framework allows it to combine multiple strategies at once to form hybrid solutions, instead of doing all full-reduction or all base+index. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-21 02:09:26 +00:00
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Hello	Fix a bunch of little errors that Clang complains about when its being pedantic	2009-12-19 07:05:23 +00:00
InstCombine	optimize ~(~X >>s Y) --> (X >>s Y), patch by Edmund Grimley	2010-01-19 18:16:19 +00:00
Instrumentation	simplify this code.	2010-01-20 23:30:28 +00:00
IPO	Move per-function inline threshold calculation to a method.	2010-01-20 17:51:28 +00:00
Scalar	Re-implement the main strength-reduction portion of LoopStrengthReduction.	2010-01-21 02:09:26 +00:00
Utils	Switch Elts from vector to SmallVector	2010-01-20 06:56:16 +00:00
Makefile	move instcombine to its own library, it's past time.	2010-01-04 06:23:24 +00:00