Chris Lattner 2749cc2036 Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the ... trunc has multiple uses. Codegen is not able to coalesce the subreg case correctly and so this leads to higher register pressure and spilling (see PR5997). This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%. llvm-svn: 93200		2010-01-11 22:45:25 +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	Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the	2010-01-11 22:45:25 +00:00
Instrumentation	Move remaining stuff to the isInteger predicate.	2010-01-05 21:05:54 +00:00
IPO	Be less stingy as to how many selects and phi nodes we	2010-01-07 05:48:42 +00:00
Scalar	only factor from expressions whose uses are empty and whose	2010-01-09 06:01:36 +00:00
Utils	Fix nondeterministic behavior.	2010-01-10 01:07:22 +00:00
Makefile	move instcombine to its own library, it's past time.	2010-01-04 06:23:24 +00:00