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6 Commits

Author SHA1 Message Date
Nick Lewycky
6644694650 Teach globalopt to not nuke all stores to globals. Keep them around of they 
might be deliberate "one time" leaks, so that leak checkers can find them.
This is a reapply of r160602 with the fix that this time I'm committing the
code I thought I was committing last time; the I->eraseFromParent() goes
*after* the break out of the loop.

llvm-svn: 160664
 2012-07-24 07:21:08 +00:00
Nick Lewycky
f1a5d95995 Revert r160602. 
llvm-svn: 160603
 2012-07-21 09:03:15 +00:00
Nick Lewycky
9d1d5bfd50 Teach globalopt to play nice with leak checkers. This is a reapplication of 
r160529 that was subsequently reverted. The fix was to not call
GV->eraseFromParent() right before the caller does the same. The existing
testcases already caught this bug if run under valgrind.

llvm-svn: 160602
 2012-07-21 08:29:45 +00:00
Nick Lewycky
62064c6cc3 Revert r160529 due to crashes. 
llvm-svn: 160532
 2012-07-19 23:59:21 +00:00
Nick Lewycky
8a31eaccbd Don't wipe out global variables that are probably storing pointers to heap 
memory. This makes clang play nice with leak checkers.

llvm-svn: 160529
 2012-07-19 22:35:28 +00:00
Victor Hernandez
00adf339dd HeapAllocSRoA also needs to check if malloc array size can be computed. 
llvm-svn: 84288
 2009-10-16 23:12:25 +00:00