Dan Gohman
6c459a28ec
Generalize createSCEV to be able to form SCEV expressions from
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ConstantExprs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52615 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 19:56:46 +00:00
Dan Gohman
17f1972c77
Use SCEVAddRecExpr::isAffine.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52614 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 19:23:09 +00:00
Dan Gohman
09d3fdc254
Remove unnecessary #includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52613 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 19:21:26 +00:00
Dan Gohman
11f6d3b478
Move a few more SCEVExpander methods out-of-line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 19:09:18 +00:00
Chris Lattner
963a97f1a3
Fix PR2369 by making scalarrepl more careful about promoting
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structures. Its default threshold is to promote things that are
smaller than 128 bytes, which is sane. However, it is not sane
to do this for things that turn into 128 *registers*. Add a cap
on the number of registers introduced, defaulting to 128/4=32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52611 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 17:46:21 +00:00
Duncan Sands
69bfb15ecd
Make custom lowering of ADD work correctly. This
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fixes PR2476; patch by Richard Osborne. The same
problem exists for a bunch of other operators, but
I'm ignoring this because they will be automagically
fixed when the new LegalizeTypes infrastructure lands,
since it already solves this problem centrally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22 09:42:16 +00:00
Eli Friedman
5c1f172213
Fix for PR2479: correctly optimize expressions like (a > 13) & (a ==
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15).
See also PR1800, which is about the signed case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52608 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 23:36:13 +00:00
Dan Gohman
1adec83ae8
Use Instruction::eraseFromParent().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52606 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:08:46 +00:00
Dan Gohman
4d515d0b09
Use Function's arg_size() and size() methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:06:54 +00:00
Dan Gohman
5686752099
Simplify some getNode calls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:06:07 +00:00
Dan Gohman
2f1d3108e4
canClobberPhysRegDefs shouldn't called without checking hasPhysRegDefs;
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check this with an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52603 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:05:24 +00:00
Dan Gohman
95df6b3603
Avoid creating a redundant zero APInt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52602 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:03:12 +00:00
Dan Gohman
317adcc9c6
Use clear() to zero an existing APInt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:02:15 +00:00
Dan Gohman
719de53742
Use back() instead of [size()-1].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52600 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 22:00:54 +00:00
Duncan Sands
befc9c16fa
This file is empty.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 20:26:50 +00:00
Duncan Sands
53ebe352ab
Turn off llvm-gcc warnings when running "make check".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 20:22:58 +00:00
Dan Gohman
0011dc4738
Use MachineBasicBlock::transferSuccessors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 20:21:19 +00:00
Dan Gohman
933e51c5e3
Use static_cast instead of reinterpret_cast for casting void*.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52592 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 20:17:03 +00:00
Chris Lattner
629c1a3f78
Fix warning when assertions disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:49:01 +00:00
Chris Lattner
9d2c9bd113
fix warning when assertions disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52589 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:48:22 +00:00
Chris Lattner
48a0eec1da
fix warning when assertion disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:47:44 +00:00
Chris Lattner
a1aabe422f
fix some warnings when assertions are disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:47:03 +00:00
Dan Gohman
8d96144b0e
Remove a redundant return.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52585 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:34:57 +00:00
Dan Gohman
cdb7388233
Reorder some fields in SDNode. This avoids padding,
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reducings its size from 80 to 72 on 64-bit hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52584 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:26:15 +00:00
Dan Gohman
94d7a5f815
Remove ScheduleDAG's SUnitMap altogether. Instead, use SDNode's NodeId
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field, which is otherwise unused after instruction selection, as an index
into the SUnit array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 19:18:17 +00:00
Dan Gohman
3627e34486
Add a priority queue class, which is a wrapper around std::priority_queue
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and provides fairly efficient removal of arbitrary elements. Switch
ScheduleDAGRRList from std::set to this new priority queue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 18:35:25 +00:00
Duncan Sands
a1ace76c70
Support for load/store of expanded float types. I
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don't know if a truncating store is possible here,
but added support for it anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 17:00:47 +00:00
Dan Gohman
4c8c83022b
Change ScheduleDAG's SUnitMap from DenseMap<SDNode*, vector<SUnit*> >
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to DenseMap<SDNode*, SUnit*>, and adjust the way cloned SUnit nodes are
handled so that only the original node needs to be in the map.
This speeds up llc on 447.dealII.llvm.bc by about 2%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 15:52:51 +00:00
Evan Cheng
4ce138cc55
Enable PRE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 07:26:53 +00:00
Evan Cheng
c3417609ae
Undo spill weight tweak. Need to investigate the performance regressions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 06:45:54 +00:00
Dan Gohman
16c6859651
Simplify some template parameterization.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 01:08:22 +00:00
Evan Cheng
9f99b7c595
Back out Matthijs' DAE patches. It's miscompiling gcc driver.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52570 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21 00:31:44 +00:00
Ted Kremenek
6fa1c051dc
Updated VS build system. Patch provided by Cedric Venet:
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http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-June/015446.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52564 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 22:19:12 +00:00
Evan Cheng
3e172254c1
Enhanced heuristic to determine the *best* register to spill. Instead of picking the register with the lowest spill weight. Consider (up to) 2 additional registers with spill weights that are close to the lowest spill weight. The one with fewest defs and uses that conflicts with the current interval (weighted by loop depth) is the spill candidate.
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This is not always a win, but there are much more wins than loses and wins tend to be more noticeable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 21:45:16 +00:00
Chris Lattner
4eaac9b181
integer types are not primitive, they are derived.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52551 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 20:50:48 +00:00
Owen Anderson
1e98dc412b
llvmc doesn't exist anymore, and llvmc2 doesn't have a special license file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52550 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 20:05:57 +00:00
Owen Anderson
d567a66001
Remove empty directory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52549 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 20:05:17 +00:00
Duncan Sands
78cd649ad3
Share some code that is common between integer and
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float expansion (and sometimes vector splitting too).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 18:40:50 +00:00
Duncan Sands
c8f88cc8c0
Add some methods for querying the nature of a
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store, like the methods for loads (and neaten
those up a bit while there).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52547 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 18:34:30 +00:00
Duncan Sands
4fc4fd657d
Rename the operation of turning a float type into an
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integer of the same type. Before it was "promotion",
but this is confusing because it is quite different
to promotion of integers. Call it "softening" instead,
inspired by "soft float".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 17:49:55 +00:00
Dan Gohman
3461cc9e98
Clean up some uses of std::distance, now that we have allnodes_size.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 17:15:19 +00:00
Dan Gohman
9614fcc640
Clean up a use of std::distance.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52544 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 17:11:32 +00:00
Dan Gohman
60ea268645
Tidy up some commments and use the getAggregateOperand and
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getInsertedValueOperand accessors. Thanks Matthijs!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52543 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 16:41:17 +00:00
Dan Gohman
dfaceb49fc
Fix the conditions under which SCCP should examine insertvalue
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instructions. Thanks to Matthijs Kooijman for pointing this out!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 16:39:44 +00:00
Dan Gohman
be20a88f53
Add an allnodes_size method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52541 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 16:03:16 +00:00
Matthijs Kooijman
63691f13b6
Add testcase that checks that DeadArgElim doesn't touch stuff it shouldn't touch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52540 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 15:38:22 +00:00
Matthijs Kooijman
7e43b3be88
80 column and trailing whitespace fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52539 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 15:34:07 +00:00
Matthijs Kooijman
df0891d2ff
Don't let DeadArgumentElimination attempt to update callers when the return
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type wasn't changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 15:25:43 +00:00
Matthijs Kooijman
03d18569cb
Don't let DeadArgElimination change the return type ({} into void and {T}
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into T) when no return values are actually dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 15:16:45 +00:00
Matthijs Kooijman
9cb6ec26b3
Explicitely track if any arguments or return values were removed in
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DeadArgumentElimination and assert that the function type does not change if
nothing was changed. This should catch subtle changes in function type that are
not intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52536 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 14:28:52 +00:00