Evan Cheng 97b5beb7fe Allow machine-cse to look across MBB boundary when cse'ing instructions that
define physical registers. It's currently very restrictive, only catching
cases where the CE is in an immediate (and only) predecessor. But it catches
a surprising large number of cases.

rdar://10660865


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147827 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10 02:02:58 +00:00
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2012-01-05 00:43:34 +00:00
2012-01-05 00:43:34 +00:00