Chris Lattner abb992d6a3 change the canonical form of "cond ? -1 : 0" to be ...

"sext cond" instead of a select.  This simplifies some instcombine
code, matches the policy for zext (cond ? 1 : 0 -> zext), and allows
us to generate better code for a testcase on ppc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94339 91177308-0d34-0410-b5e6-96231b3b80d8

2010-01-24 00:09:49 +00:00

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