Merging r195339:
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r195339 | chapuni | 2013-11-21 02:55:15 -0800 (Thu, 21 Nov 2013) | 5 lines
Revert r195317 (and r195333), "Teach ISel not to optimize 'optnone' functions."
It broke, at least, i686 target. It is reproducible with "llc -mtriple=i686-unknown".
FYI, it didn't appear to add either "-O0" or "-fast-isel".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195375
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