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2 Commits

Author SHA1 Message Date
Tim Northover 3352f5142d MachO: trap unreachable instructions 
Debugability is more important than saving 4 bytes to let us to fall
through to nonense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330073 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-04-13 22:25:20 +00:00
Pete Cooper 537ff782aa Fix incorrect kill flags in fastisel. 
If called twice in the same BB on the same constant, FastISel::fastEmit_ri_ was marking the materialized vreg as killed on each use, instead of only the last use.

Change this to only mark the last use as killed by making earlier uses check if the vreg is already used elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236650 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-06 22:09:29 +00:00