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2011-10-04Unit test for r140919, loop unroll heuristics.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141049 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Reapply r139759. Disable IV rewriting by default. See PR10916.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13[indvars] Revert r139579 until 401.bzip -arch i386 miscompilation is fixed. ↵Andrew Trick
PR10920. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Disable IV rewriting by default. See PR10916.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139579 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Rename -disable-iv-rewrite to -enable-iv-rewrite=false in preparation for ↵Andrew Trick
default change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139517 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Test case update for unroll-scev.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139037 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02-unroll-scev flag removalAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02ConstantVector returns arbitrary value for the wrong index.Jakub Staszak
This fixes PR10813. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139006 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11A slew of unit tests for the recent LoopInfo::updateUnloop featureAndrew Trick
checked in at r137276 and r137341. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11Allow loop unrolling to get known trip counts from ScalarEvolution.Andrew Trick
SCEV unrolling can unroll loops with arbitrary induction variables. It is a prerequisite for -disable-iv-rewrite performance. It is also easily handles loops of arbitrary structure including multiple exits and is generally more robust. This is under a temporary option to avoid affecting default behavior for the next couple of weeks. It is needed so that I can checkin unit tests for updateUnloop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137384 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10Invoke SimplifyIndVar when we partially unroll a loop. Fixes PR10534.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137203 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10Fix the LoopUnroller to handle nontrivial loops and partial unrolling.Andrew Trick
These are not individual bug fixes. I had to rewrite a good chunk of the unroller to make it sane. I think it was getting lucky on trivial completely unrolled loops with no early exits. I included some fairly simple unit tests for partial unrolling. I didn't do much stress testing, so it may not be perfect, but should be usable now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137190 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18add a testcase for r125827Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Rename 'loopsimplify' to 'loop-simplify'.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125317 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Revert r113439, which relaxed the requirement that loops containing calls ↵Owen Anderson
cannot be unrolled. After some discussion, there seems to be a better way to achieve the same effect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-08Relax the "don't unroll loops containing calls" rule. Instead, when a loop ↵Owen Anderson
contains a call, lower the unrolling threshold to the optimize-for-size threshold. Basically, for loops containing calls, unrolling can still be profitable as long as the loop is REALLY small. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20Teach getSmallConstantTripMultiple about Shl operators.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Change tests from "opt %s" to "opt < %s" so that opt doesn't see theDan Gohman
input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Use opt -S instead of piping bitcode output through llvm-dis.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Change these tests to feed the assembly files to opt directly, insteadDan Gohman
of using llvm-as, now that opt supports this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13remove a test that depends on -debug.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66937 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Add -unroll-allow-partial command line option that enabled the loop unroller toMatthijs Kooijman
partially unroll a loop when fully unrolling would not fit under the threshold. Patch by Mikael Lepistö. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-24Revert 52645, the loop unroller changes. It caused a regression in 252.eon.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52688 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Revamp the loop unroller, extending it to correctly update PHI nodesDan Gohman
in the presence of out-of-loop users of in-loop values and the trip count is not a known multiple of the unroll count, and to be a bit simpler overall. This fixes PR2253. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52645 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20sabre brings to my attention that the 'tr' suffix is also obsoleteGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20Rename the last test with .llx extension to .ll, resolve duplicate test by ↵Gabor Greif
renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19Upgrade tests.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-27Be more careful modifying the use_list while also iterating through it.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46417 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-05If a value is incoming from outside the loop then the value does not need ↵Devang Patel
remapping and the value is never tracked through LastValueMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Convert .cvsignore filesJohn Criswell
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37801 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-18Add a testcase for unrolling loops with unknown tripcounts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37238 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-05new testcase for PR1385Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36783 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16Add PR number for reference.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36184 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16New test case.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36181 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16For PR1319:Reid Spencer
Remove && from the end of the lines to prevent tests from throwing run lines into the background. Also, clean up places where the same command is run multiple times by using a temporary file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36142 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15For PR1319:Reid Spencer
Upgrade to use new Tcl exec based test harness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36062 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11Make the llvm-runtest function much more amenable by eliminating all theReid Spencer
global variables that needed to be passed in. This makes it possible to add new global variables with only a couple changes (Makefile and llvm-dg.exp) instead of touching every single dg.exp file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35918 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02Use the llvm-upgrade program to upgrade llvm assembly.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-24Implement unrolling of multiblock loops. This significantly improves theOwen Anderson
utility of the LoopUnroll pass. Also, add a testcase for multiblock-loop unrolling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-12Added the ability to xfail based on llvmgcc versionTanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27635 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-23Tired of wading through cvs's list ? files that are generated when buildingReid Spencer
with srcdir = objdir to see what's okay and what's cruft. So, in goes a bunch of .cvsignore files to shut cvs up about known output from running "make check". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27009 91177308-0d34-0410-b5e6-96231b3b80d8
2005-03-06New testcase for PR532Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20492 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-19Adding srcdir argTanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18020 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-13Adding subdirectory dg.exp files in order to be able to use dejagnu to only ↵Tanya Lattner
run specific tests (located in some subdirectory of Regression) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17712 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-13New testcase that used to cause the unroller to try to unroll the loop 2G ↵Chris Lattner
times. :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13563 91177308-0d34-0410-b5e6-96231b3b80d8
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