llvm/test/Transforms/MemCpyOpt, branch release_32http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/MemCpyOpt?h=release_322012-10-04T13:53:21ZIn my recent change to avoid use of underaligned memory I didn't notice that2012-10-04T13:53:21ZDuncan Sandsbaldrick@free.fr2012-10-04T13:53:21Zurn:sha1:7508f946bc4b5022cc4612c8c7492f2e23043976
cpyDest can be mutated in some cases, which would then cause a crash later if
indeed the memory was underaligned. This brought down several buildbots, so
I guess the underaligned case is much more common than I thought!
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The memcpy optimizer was happily doing call slot forwarding when the new memory2012-10-04T10:54:40ZDuncan Sandsbaldrick@free.fr2012-10-04T10:54:40Zurn:sha1:f58747517cf2ba55c6f89a5ddc4de63be9e1362f
was less aligned than the old. In the testcase this results in an overaligned
memset: the memset alignment was correct for the original memory but is too much
for the new memory. Fix this by either increasing the alignment of the new
memory or bailing out if that isn't possible. Should fix the gcc-4.7 self-host
buildbot failure.
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MemCpyOpt: When forming a memset from stores also take GEP constexprs into account.2012-09-13T16:29:49ZBenjamin Kramerbenny.kra@googlemail.com2012-09-13T16:29:49Zurn:sha1:39acdb0200ff78065699509fccfc605f86237350
This is common when storing to global variables.
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Fix the remaining TCL-style quotes found in the testsuite. This is2012-07-02T19:09:46ZChandler Carruthchandlerc@gmail.com2012-07-02T19:09:46Zurn:sha1:1de43ede8904e08de37f601c9bab0b70f71156e1
another mechanical change accomplished though the power of terrible Perl
scripts.
I have manually switched some "s to 's to make escaping simpler.
While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.
Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/
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Move the capture analysis from MemoryDependencyAnalysis to a more general place2012-05-14T20:35:04ZChad Rosiermcrosier@apple.com2012-05-14T20:35:04Zurn:sha1:3a884f5c17ac32e34e7e62b4602a0d73eeda1ce8
so that it can be reused in MemCpyOptimizer. This analysis is needed to remove
an unnecessary memcpy when returning a struct into a local variable.
rdar://11341081
PR12686
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Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.2012-02-16T06:28:33ZEli Benderskyeli.bendersky@intel.com2012-02-16T06:28:33Zurn:sha1:0f0c411079cd21bb3a81a1b70bf8c67539a16c22
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.
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Probably not a good idea to convert a single vector load into a memcpy. We2011-12-06T00:19:08ZChad Rosiermcrosier@apple.com2011-12-06T00:19:08Zurn:sha1:dce42b75dc05befb4f43b664951c80752904bcde
don't do this now, but add a test case to prevent this from happening in the
future.
Additional test for rdar://9892684
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Make the MemCpyOptimizer a bit more aggressive. I can't think of a scenerio2011-12-05T22:37:00ZChad Rosiermcrosier@apple.com2011-12-05T22:37:00Zurn:sha1:d8bd26ee240bbc10a230d2ea8f8975d1fd32ba7c
where this would be bad as the backend shouldn't have a problem inlining small
memcpys.
rdar://10510150
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Oops! Fix test I forgot to submit as part of r142735.2011-10-22T22:07:31ZNick Lewyckynicholas@mxc.ca2011-10-22T22:07:31Zurn:sha1:88c0514ec5fed90ecc1354bf39b878a473bd5668
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Oops! Fix testcase.2011-10-16T20:20:15ZNick Lewyckynicholas@mxc.ca2011-10-16T20:20:15Zurn:sha1:c4a90c5271de99e682b00986c9ca7cde3e1dde4f
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