llvm/test/Transforms/LoopUnroll, branch release_32http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/LoopUnroll?h=release_322012-10-24T19:46:44ZgetSmallConstantTripMultiple should never return zero.2012-10-24T19:46:44ZHal Finkelhfinkel@anl.gov2012-10-24T19:46:44Zurn:sha1:8c65549318950ff3fc1cb3d7a73fb50c688c78a5
When the trip count is -1, getSmallConstantTripMultiple could return zero,
and this would cause runtime loop unrolling to assert. Instead of returning
zero, one is now returned (consistent with the existing overflow cases).
Fixes PR14167.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166612 91177308-0d34-0410-b5e6-96231b3b80d8
Fix tests that didn't test anything.2012-09-26T09:51:39ZBenjamin Kramerbenny.kra@googlemail.com2012-09-26T09:51:39Zurn:sha1:e7381cc99c3d5a579dd039f0d8e1b930f5735684
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164686 91177308-0d34-0410-b5e6-96231b3b80d8
Fix 12513: Loop unrolling breaks with indirect branches.2012-04-10T05:14:42ZAndrew Trickatrick@apple.com2012-04-10T05:14:42Zurn:sha1:d9fc1ce8096f7138c60edc3a6655583bf209780e
Take this opportunity to generalize the indirectbr bailout logic for
loop transformations. CFG transformations will never get indirectbr
right, and there's no point trying.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154386 91177308-0d34-0410-b5e6-96231b3b80d8
Add testcase for r154007, when a function has the optsize attribute,2012-04-04T13:24:40ZHongbin Zhengetherzhhb@gmail.com2012-04-04T13:24:40Zurn:sha1:99c8a5a64a17b880274bf1366d20049694c88f15
the loop should be unrolled according the value of OptSizeUnrollThreshold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154014 91177308-0d34-0410-b5e6-96231b3b80d8
Remove redundant -enable-iv-rewrite=false flags from test cases.2012-03-22T17:09:04ZAndrew Trickatrick@apple.com2012-03-22T17:09:04Zurn:sha1:dba95737e0827380c2be9b762af0c2740c4ebce7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153255 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
Add -unroll-runtime for unrolling loops with run-time trip counts.2011-12-09T06:19:40ZAndrew Trickatrick@apple.com2011-12-09T06:19:40Zurn:sha1:5d73448bb7f3d326f310e6f35030821b103b1cdb
Patch by Brendon Cahoon!
This extends the existing LoopUnroll and LoopUnrollPass. Brendon
measured no regressions in the llvm test suite with -unroll-runtime
enabled. This implementation works by using the existing loop
unrolling code to unroll the loop by a power-of-two (default 8). It
generates an if-then-else sequence of code prior to the loop to
execute the extra iterations before entering the unrolled loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146245 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a corner case in updating LoopInfo after fully unrolling an outer loop.2011-11-18T03:42:41ZAndrew Trickatrick@apple.com2011-11-18T03:42:41Zurn:sha1:5865a8dfde3be74418b579f1162f111f3e46998d
The loop tree's inclusive block lists are painful and expensive to
update. (I have no idea why they're inclusive). The design was
supposed to handle this case but the implementation missed it and my
unit tests weren't thorough enough.
Fixes PR11335: loop unroll update.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144970 91177308-0d34-0410-b5e6-96231b3b80d8
Don't try to loop on iterators that are potentially invalidated inside the loop. Fixes PR11361!2011-11-12T03:09:12ZNick Lewyckynicholas@mxc.ca2011-11-12T03:09:12Zurn:sha1:d7ecff49d9190262da48a9f5815c01138fd54ebc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144454 91177308-0d34-0410-b5e6-96231b3b80d8
Unit test for r140919, loop unroll heuristics.2011-10-04T00:07:02ZAndrew Trickatrick@apple.com2011-10-04T00:07:02Zurn:sha1:d974ea22a5b569e1e21d10332152093372cb6f60
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141049 91177308-0d34-0410-b5e6-96231b3b80d8