llvm/lib/Transforms/Scalar, branch testinghttp://llvm.orghttps://git.amat.us/llvm/atom/lib/Transforms/Scalar?h=testing2013-03-21T09:52:18Z[SROA] Prefix names using a custom IRBuilder inserter.2013-03-21T09:52:18ZChandler Carruthchandlerc@gmail.com2013-03-21T09:52:18Zurn:sha1:d647ec52396ed0f1886537114ab587c71fc43565
The key part of this is ensuring that name prefixes remain in a Twine
form until we get to a point where we can nuke them under NDEBUG. This
is tricky using the old APIs as they played fast and loose with Twine,
which is prone to serious error. The inserter is much cleaner as it is
actually in the call stack leading to the setName call, and so has
a good opportunity to prepend the prefix.
This matters more than you might imagine because most runs over an
alloca find a single partition, and rewrite 3 or 4 instructions
referring to it. As a consequence doing this lazily and exclusively with
Twine allows the optimizer to delete more of it and shaves another 2% to
3% off of the release build's SROA run time for PR15412. I also think
the APIs are cleaner, and the use of Twine is more reliable, so
I consider it a win-win despite the churn required to reach this state.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177631 91177308-0d34-0410-b5e6-96231b3b80d8
simplify-libcalls: Removed unused variable2013-03-21T02:44:07ZMeador Ingemeadori@codesourcery.com2013-03-21T02:44:07Zurn:sha1:a2c6256b2afc7943d55c0965f3bb081f7a893b53
The 'Modified' variable should have been removed from SimplifyLibCalls
in r177619, but was missed. This commit removes it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177622 91177308-0d34-0410-b5e6-96231b3b80d8
Move library call prototype attribute inference to functionattrs2013-03-21T00:55:59ZMeador Ingemeadori@codesourcery.com2013-03-21T00:55:59Zurn:sha1:cf47ce616c53040cb8aa09eff9dc0b693e571842
The simplify-libcalls pass implemented a doInitialization hook to infer
function prototype attributes for well-known functions. Given that the
simplify-libcalls pass is going away *and* that the functionattrs pass
is already in place to deduce function attributes, I am moving this logic
to the functionattrs pass. This approach was discussed during patch
review:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/157465.html.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177619 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a silly search-and-replace goof with r177495 that only broke2013-03-20T07:40:56ZChandler Carruthchandlerc@gmail.com2013-03-20T07:40:56Zurn:sha1:fd060a94a46db75c45b2a1789a8bc597a03e6ac1
non-release builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177498 91177308-0d34-0410-b5e6-96231b3b80d8
[SROA] Don't preserve the IR names in release builds.2013-03-20T07:30:36ZChandler Carruthchandlerc@gmail.com2013-03-20T07:30:36Zurn:sha1:05c6d0b16f8c442a29b03b312f9fb6910955a8ec
This is espcially important because the new SROA pass goes to great
lengths to provide helpful names for debugging, and as a consequence
they can become very slow to render.
Good for between 5% and 15% of the SROA runtime on some slow test cases
such as the one in PR15412.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177495 91177308-0d34-0410-b5e6-96231b3b80d8
Move the endif to the correct line so we don't have warnings about2013-03-20T06:47:00ZChandler Carruthchandlerc@gmail.com2013-03-20T06:47:00Zurn:sha1:30ee9c2093897a0edfe3bd23e6c754c4d88cbd88
unused statistics variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177494 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce some new statistics to help track the exact behavior of the2013-03-20T06:30:46ZChandler Carruthchandlerc@gmail.com2013-03-20T06:30:46Zurn:sha1:f2b649da0f433511e9e0d602ee59e9f687dd846c
new SROA pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177493 91177308-0d34-0410-b5e6-96231b3b80d8
Update global merge pass according to Duncan's advices:2013-03-19T21:46:49ZQuentin Colombetqcolombet@apple.com2013-03-19T21:46:49Zurn:sha1:9deb91722cc4a7e0aa220b0a210c56ac95c62d73
- Remove useless includes
- Change misleading comments
- Move code into doFinalization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177445 91177308-0d34-0410-b5e6-96231b3b80d8
IndVarSimplify: do not recompute an IV value outside of the loop if :2013-03-19T20:00:22ZArnaud A. de Grandmaisonarnaud.adegm@gmail.com2013-03-19T20:00:22Zurn:sha1:eb9a42e8ab5ffb5a8f02c2f78876ed03dd883416
- it is trivially known to be used inside the loop in a way that can not be optimized away
- there is no use outside of the loop which can take advantage of the computation hoisting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177432 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Cleanup some SCEV logic a bit."2013-03-19T05:10:27ZAndrew Trickatrick@apple.com2013-03-19T05:10:27Zurn:sha1:d37c8568e68d0ea3492503cd192783900e2d922a
This reverts commit 82cd8f7382322bee7a71cdc31f7a923c44d37d32.
Just add a comment instead!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177377 91177308-0d34-0410-b5e6-96231b3b80d8