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Author SHA1 Message Date
Duncan Sands 1978426a94 Revert r70876 and add a testcase (@c7) showing the problem: 
bits captured, but the pointer marked nocapture.  In fact
I now recall that this problem is why only readnone functions
returning void were considered before!  However keep a small
fix that was also in r70876: a readnone function returning
void can result in bits being captured if it unwinds, so
test for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71168 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-07 18:08:34 +00:00
Mike Stump fe095f39e7 Restore minor deletion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-04 18:40:41 +00:00
Duncan Sands 8556d2a7f1 BasicAliasAnalysis and FunctionAttrs were both 
doing very similar pointer capture analysis.
Factor out the common logic.  The new version
is from FunctionAttrs since it does a better
job than the version in BasicAliasAnalysis


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62461 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 12:19:30 +00:00