3bf19e4c42
Remove lingering references to .llx and .tr in the tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51500 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 21:15:35 +00:00
f6cadc440c
sabre brings to my attention that the 'tr' suffix is also obsolete
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 21:00:03 +00:00
722243bd40
Rename the last test with .llx extension to .ll, resolve duplicate test by renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 19:52:04 +00:00
90d2736540
Fix this test. It was testing broken behavior in that it required ADCE to eliminate
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a potentially infinite loop, which is undesirable. Instead, test the LICM behavior
that we're really interested in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 04:25:09 +00:00
46bb007014
Fix PR1098 by correcting the postdominators analysis.
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Patch by Florian Brandner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 21:07:35 +00:00
5ae21fb23a
rename *.llx -> *.ll, last batch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:32:52 +00:00
241f65321e
Make GVN able to remove unnecessary calls to read-only functions again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 05:36:50 +00:00
21d31a8d94
Don't assume a tail call can't reference a byval
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argument to the outer function, this isn't correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49731 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 17:41:34 +00:00
fa0e66471f
The functionality being tested was removed because it was horribly unsafe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-13 09:51:06 +00:00
f02a8070eb
Testcase for pr2169.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49344 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 17:03:16 +00:00
4c88cc9c2a
Testcase for PR2160.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48655 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 20:22:11 +00:00
d3bf1aef3f
Fix PR 2160 by making sure arguments to external functions get marked as pointing to anything
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48509 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 22:22:53 +00:00
c0734e3c99
Fix http://llvm.org/bugs/show_bug.cgi?id=2104 by ordering lexicographically what gets printed. Be const-correct in PrintResults and uninline it too
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47712 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 08:38:45 +00:00
b9a905781e
Temporarily reverting 46959.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 03:57:32 +00:00
3e63076980
Add 'umax' similar to 'smax' SCEV. Closes PR2003.
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Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).
Parse 'xor %x, -1' as (-1 - %x).
Remove dead code (ConstantInt::get always returns a ConstantInt).
Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 06:48:22 +00:00
dcd188d33f
Remove llvm-upgrade.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47110 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 06:56:27 +00:00
52f321f525
Now that ScalarEvolution::print writes to the correct stream, there is
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no need to redirect stderr into stdout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47009 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 15:12:40 +00:00
2a9054cfd6
Change negative grep into positive one in my yesterday's testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 15:10:35 +00:00
7b5b76835a
Fix PR2002. Suppose n is the initial value for the induction
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variable (with step 1) and m is its final value. Then, the correct trip
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may
overflow and can't in general be interpreted as signed.
Patch by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 15:09:36 +00:00
a089b10421
If the LHS of the comparison is a loop-invariant we also want to move it
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to the RHS. This simple change allows to compute loop iteration count
for loops with condition similar to the one in the testcase (which seems
to be quite common).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46959 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-11 18:37:34 +00:00
e3320a1bcc
Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an
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arbitrary iteration.
The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the
computations (essentially, the division) in BinomialCoefficient() are
performed with the apprioprate bitwidth necessary to avoid overflow;
unsigned division is used instead of the signed one.
Computations in BinomialCoefficient() require support from the code
generator for APInts. Currently, we use a hack rounding up the
neccessary bitwidth to the nearest power of 2. The hack is easy to turn
off in future.
One remaining issue: we assume the divisor of the binomial coefficient
formula can be computed accurately using 16 bits. It means we can handle
AddRecs of length up to 9. In future, we should use APInts to evaluate
the divisor.
Thanks to Nicholas for cooperation!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-11 11:03:14 +00:00
fd68750038
Teach basicaa that 'byval' arguments define a new memory location that
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can't be aliased to other known objects. This allows us to know that byval
pointer args don't alias globals, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-24 18:00:32 +00:00
e81cd881b1
Accept both %y, %x and %x, %y as valid answers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45649 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 03:12:44 +00:00
f88380ba2c
Fix PR1782, patch by Wojtek Matyjewicz!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44733 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-09 07:35:13 +00:00
727842e9d7
Fix bug in regression tests that ignored stderr output in RUN lines. Updated tests and fixed broken run lines.
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XFAILed 3 arm regressions (will file bugs)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44389 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-28 04:57:00 +00:00
88e84d1f20
Change grep '' to grep {}.
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Change 2>&1 | to |&.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44344 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-27 00:10:35 +00:00
00a6d1448d
Allow GVN to eliminate read-only function calls when it can detect that they are redundant.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44323 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-26 02:26:36 +00:00
c54c561c9f
Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44319 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-25 22:41:31 +00:00
e4dc717585
Ding dong, the DoesntAccessMemoryFns and
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OnlyReadsMemoryFns tables are dead! We
get more, and more accurate, information
from gcc via the readnone and readonly
function attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44288 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-23 19:30:27 +00:00
920653d41e
Teach alias analysis about readnone/readonly functions.
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Based on a patch by Török Edwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44279 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-22 21:43:27 +00:00
4ac0e8da4a
Create nodes for inline asm so that we don't crash looking for the node later.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44267 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-22 03:07:37 +00:00
cf96db2c1d
Be more careful when transforming | to +. Patch from Wojciech Matyjewicz.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44248 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-20 08:24:44 +00:00
4e1a0e386c
Reverted r44163 per request
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44177 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-15 18:33:16 +00:00
65e2da3b4d
Fix handling of overflow in loop calculation by adding new UDiv SCEV. This SCEV
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is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44163 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-15 06:30:50 +00:00
9907cb12ae
Fix PR1774 and BasicAA/2007-11-05-SizeCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43756 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-06 05:58:42 +00:00
f92ff03f71
Fix for PR1741.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43326 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 02:36:18 +00:00
9a2f93121b
Build the correct range for loops with unusual bounds. Fix from Jay Foad.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-27 14:12:54 +00:00
28beeeac4d
Convert tests using "| wc -l | grep ..." to use the count script.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 13:36:28 +00:00
f48a88054a
Add reference to problem report.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40889 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-07 12:27:03 +00:00
a583990ec8
This resolves a regression of BasicAA which failed to find any memory information for overloaded intrinsics (PR1600). This resolves that issue, and improves the matching scheme to use a BitVector rather than a binary search.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40872 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-06 20:57:16 +00:00
450770de65
Fix the dates on these tests. It's not September yet. Thanks Reid!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40869 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-06 20:00:11 +00:00
d6dac0eebc
Let scalar-evolution analyze loops with an unsigned comparison for the exit
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condition. Fixes 1597.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40867 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-06 19:21:00 +00:00
06323bfe03
Don't assume it's safe to transform a loop just because it's dominated by any
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comparison. Fixes bug 1598.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40866 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-06 18:33:46 +00:00
947596c351
update for new domtree dump format
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40857 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-06 06:17:08 +00:00
406bfa3e21
Teach BasicAA about noalias parameter attributes, but do it correctly this time.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40711 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-02 01:18:14 +00:00
321ff4e6d5
Revert overly aggressive interpretation of noalias
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40635 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 16:18:07 +00:00
fee0a9c7ef
Bunch of tests to check loop passes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40629 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 08:04:17 +00:00
50192c2152
Teach BasicAA about noalias function parameters. Passes all of DejaGNU and test-suite.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40624 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 07:04:51 +00:00
eefdebe002
Handle decrementing loops properly. Fixes PR1533.
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Always pass the constant as the second parameter to HowManyLessThans.
Remove obsolete "isSigned" parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39893 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-16 02:08:00 +00:00
e644ef7b09
Convert .cvsignore files
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37801 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29 16:35:07 +00:00
Dan Gohman
Gabor Greif
Owen Anderson
Chris Lattner
Dale Johannesen
Duncan Sands
Daniel Berlin
Evan Cheng
Nick Lewycky
Tanya Lattner
Wojciech Matyjewicz
Anton Korobeynikov
Chandler Carruth
Christopher Lamb
Devang Patel
John Criswell