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2013-03-12Revert the test moves from 176733. Use "REQUIRES: asserts" instead.Jan Wen Voung
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176873 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08Disable statistics on Release builds and move tests that depend on -stats.Jan Wen Voung
Summary: Statistics are still available in Release+Asserts (any +Asserts builds), and stats can also be turned on with LLVM_ENABLE_STATS. Move some of the FastISel stats that were moved under DEBUG() back out of DEBUG(), since stats are disabled across the board now. Many tests depend on grepping "-stats" output. Move those into a orig_dir/Stats/. so that they can be marked as unsupported when building without statistics. Differential Revision: http://llvm-reviews.chandlerc.com/D486 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176733 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Add a new attribute, 'noduplicate'. If a function contains a noduplicate ↵James Molloy
call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. Similarly inlining of the function is inhibited, if that would duplicate the call (in particular inlining is still allowed when there is only one callsite and the function has internal linkage). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170704 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24getSmallConstantTripMultiple should never return zero.Hal Finkel
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
2012-09-26Fix tests that didn't test anything.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Fix 12513: Loop unrolling breaks with indirect branches.Andrew Trick
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
2012-04-04Add testcase for r154007, when a function has the optsize attribute,Hongbin Zheng
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
2012-03-22Remove redundant -enable-iv-rewrite=false flags from test cases.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Replace all instances of dg.exp file with lit.local.cfg, since all tests are ↵Eli Bendersky
run with LIT now and now Dejagnu. dg.exp is no longer needed. 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
2011-12-09Add -unroll-runtime for unrolling loops with run-time trip counts.Andrew Trick
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
2011-11-18Fix a corner case in updating LoopInfo after fully unrolling an outer loop.Andrew Trick
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
2011-11-12Don't try to loop on iterators that are potentially invalidated inside the ↵Nick Lewycky
loop. Fixes PR11361! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144454 91177308-0d34-0410-b5e6-96231b3b80d8
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
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