James Molloy 391016025a Fix a codegen fault in which log2 or exp2 could be dead-code eliminated even though they could have sideeffects.
Only allow log2/exp2 to be converted to an intrinsic if they are declared "readnone".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01 14:32:18 +00:00
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2012-03-01 01:36:50 +00:00
2012-02-28 15:35:52 +00:00