Chris Lattner db6c348f31 Fix PR8728, a miscompilation I recently introduced. When optimizing ... memcpy's like: memcpy(A, B) memcpy(A, C) we cannot delete the first memcpy as dead if A and C might be aliases. If so, we actually get: memcpy(A, B) memcpy(A, A) which is not correct to transform into: memcpy(A, A) This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks Jakub! llvm-svn: 120974		2010-12-06 01:48:06 +00:00
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const-pointers.ll	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
crash.ll	clean up DSE tests, removing some poorly reduced and useless old test,	2010-11-30 01:00:34 +00:00
dg.exp	sabre brings to my attention that the 'tr' suffix is also obsolete	2008-05-20 21:00:03 +00:00
free.ll	Enhance DSE to handle the case where a free call makes more than	2010-11-12 02:19:17 +00:00
lifetime.ll	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
memintrinsics.ll	Reapply r86359, "Teach dead store elimination that certain intrinsics write to	2009-11-10 06:46:40 +00:00
no-targetdata.ll	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
PartialStore.ll	Enhance DSE to handle the variable index case in PR8657.	2010-11-30 23:43:23 +00:00
simple.ll	Fix PR8728, a miscompilation I recently introduced. When optimizing	2010-12-06 01:48:06 +00:00