David Greene
feb5bfbc6b
Fix a small bug.
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Fix one case we missed to make sure we reserve registers from
allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 19:09:39 +00:00
Dan Gohman
dab249b3b7
Enable hoisting of loads from constant memory by default. In cases where
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they are lowered to instruction sequences more complex than a simple
load, such that CodeGen cannot rematerialize them, a reload from a
spill slot is likely to be cheaper than the complex sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 19:00:10 +00:00
Daniel Dunbar
58ce7acb4f
Use StringRef::min instead of std::min.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 18:53:18 +00:00
Jim Grosbach
dec6de92d1
fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 18:23:19 +00:00
Daniel Dunbar
a627ef57ec
TableGen/OptParser: When ordering options, make "sentinel" options appear before
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everything else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 18:22:16 +00:00
Mikhail Glushenkov
eeebecfcb4
Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 17:29:36 +00:00
Mikhail Glushenkov
e0ace0c08f
Make example/Hello compile again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 17:29:25 +00:00
Dan Gohman
57474fa0f6
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 16:35:11 +00:00
Benjamin Kramer
90c583fff0
cstdlib is not automatically included with StringRef anymore.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 16:08:04 +00:00
Benjamin Kramer
49123250ae
Reenable Split2 StringRef test with Apple gcc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 16:04:41 +00:00
David Greene
7cfd336af6
Add support for spreading register allocation.
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Add a -linearscan-skip-count argument (default to 0) that tells the
allocator to remember the last N registers it allocated and skip them
when looking for a register candidate. This tends to spread out
register usage and free up post-allocation scheduling at the cost of
slightly more register pressure. The primary benefit is the ability
to backschedule reloads.
This is turned off by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89356 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:55:49 +00:00
Benjamin Kramer
1acdcd5b0d
Remove the now obsolete algorithm include from StringRef.h.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:48:14 +00:00
Torok Edwin
2fe05d80d3
Workaround PR5482, because all the gcc versions that I had were miscompiling StringRef:
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4.2.4, 4.3.4, 4.4.2.
The workaround is to use a local min/max implementation that takes an integer
param, and not a reference to integer param (like std::min does).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:39:50 +00:00
Benjamin Kramer
ac07b3df3e
Unbreak x64 MSVC build. Patch by Nicolas Capens!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89341 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 12:17:31 +00:00
Edward O'Callaghan
cc9fa81fe1
Add PS3 Triple class, Credit to John Thompson.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 11:59:00 +00:00
Evan Cheng
ed54de40a7
80 col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89337 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 08:16:50 +00:00
Daniel Dunbar
2b86caf05b
Unbreak test, Bruno please check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89329 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 07:18:49 +00:00
Evan Cheng
2ef9c8a43d
More consistent thumb1 asm printing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89328 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 06:57:41 +00:00
Evan Cheng
5b397c93a5
Shrink ldr / str [sp, imm0-1024] to 16-bit instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89326 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 06:32:27 +00:00
Evan Cheng
a64ce45917
Eliminate more * 4 in Thumb1 asm printing for consistency sake.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 06:31:26 +00:00
Bruno Cardoso Lopes
2045c47aff
- Add sugregister logic to handle f64=(f32,f32).
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- Support mips1 like load/store of doubles:
Instead of:
sdc $f0, X($3)
Generate:
swc $f0, X($3)
swc $f1, X+4($3)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89322 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 06:06:13 +00:00
Bruno Cardoso Lopes
0046de0550
Only use small sections for non linux targets!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 05:28:18 +00:00
Lang Hames
835ca07991
Added a new Spiller implementation which wraps LiveIntervals::addIntervalsForSpills.
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All spiller calls in RegAllocLinearScan now go through the new Spiller interface.
The "-new-spill-framework" command line option has been removed. To use the trivial in-place spiller you should now pass "-spiller=trivial -rewriter=trivial".
(Note the trivial spiller/rewriter are only meant to serve as examples of the new in-place modification work. Enabling them will yield terrible, though hopefully functional, code).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 04:15:33 +00:00
Edward O'Callaghan
2b5e6b1c9c
autoconf config.* claims to not know about auroraux triple.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89301 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 02:25:50 +00:00
Jim Grosbach
97200e4dd4
Teach IVUsers to keep things simpler and track loop-invariant strides only
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for uses inside the loop. This works better with LSR. Disabled behind
-simplify-iv-users while benchmarking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 02:05:44 +00:00
Jim Grosbach
d0b552cc56
Eliminate duplicate phi nodes in loops. Loop rotation, for example, can introduce these, and it's beneficial to later passes to clean them up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 02:03:18 +00:00
Jim Grosbach
20f4d34fe3
Make EliminateDuplicatePHINodes() available as a utility function
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89297 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 02:02:10 +00:00
Bill Wendling
77bd09b650
Test from Dhrystone to make sure that we're not emitting an aligned load for a
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string that's aligned at 8-bytes instead of 16-bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89295 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 01:33:57 +00:00
Daniel Dunbar
fd96b13a94
Add TOOLALIAS makefile variable; this defines an alternate name for a program
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which the makefiles will create by symlinking the actual tool to.
- For use by clang, where we want to make 'clang++' and alias for clang (which
enables C++ support in the driver)
- Not sure this is the best approach, alternative suggestions welcome!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 00:14:53 +00:00
Bill Wendling
01c69374b5
The "ReadOnlyWithRel" enum seems to apply more to what Darwin does with the EH
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exception table than DataRel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 00:09:14 +00:00
Daniel Dunbar
b80077aae9
Twine: Stores kinds as uchar instead of bitfield to be friendlier to the
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optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89278 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 00:04:43 +00:00
Bob Wilson
fbb6b67df0
There should be no need to keep renumbering blocks during tail duplication.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:48:57 +00:00
Bob Wilson
41a0456a3c
Fix buildbots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:30:38 +00:00
Richard Osborne
bea7df56ce
Add XCore support for indirectbr / blockaddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:20:42 +00:00
Douglas Gregor
74f2ca8c4a
De-bork CMake build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:20:09 +00:00
Bill Wendling
ec04458551
Attempt #2 :
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Place the EH table in the __TEXT section on MachO. It saves space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:18:46 +00:00
Bob Wilson
60f34b9fb0
Tail duplication still needs to iterate. Duplicating new instructions onto
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the tail of a block may make that block a new candidate for duplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89264 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 22:52:37 +00:00
Bob Wilson
79d621035e
Add another statistic to measure code size due to tail duplication.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 22:12:31 +00:00
Jeffrey Yasskin
f605773869
Remove spurious @verbatim. Patch by Timo Juhani Lindfors!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 22:04:44 +00:00
Bill Wendling
9b5928b989
Not all ASM has # for comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89250 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 21:54:13 +00:00
Jakob Stoklund Olesen
0b25ae1afb
Fix PR5300.
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When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89246 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 21:33:35 +00:00
Daniel Dunbar
2d6a8fb827
TableGen: Add initial backend for clang Driver's option parsing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 21:29:51 +00:00
Jakob Stoklund Olesen
8f16e02fc9
Allow the machine verifier to be run outside the PassManager.
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Verify LiveVariables information when present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:36:57 +00:00
Jakob Stoklund Olesen
1e78aa445c
Remove the -early-coalescing option
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:36:47 +00:00
Lang Hames
38283e23df
Fixed the in-place spiller and trivial rewriter, which had been broken by the recent SlotIndexes work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:31:20 +00:00
Viktor Kutuzov
e823db8bae
Added getDefaultSubtargetFeatures method to SubtargetFeatures class which returns a correct feature string for given triple.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89236 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 20:20:05 +00:00
Bob Wilson
7cd5d3e05c
Add statistics for tail duplication.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89225 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 19:29:37 +00:00
David Goodwin
ebb5cb9216
Add ARMv6 itineraries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89218 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 18:39:57 +00:00
Bob Wilson
a3003004aa
Fix a few places that were missed when we converted to unified syntax.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89214 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 18:10:35 +00:00
Jakob Stoklund Olesen
0257dd375d
Don't require LiveVariables for PHIElimination. Enable critical edge splitting
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when LiveVariables is available.
The -split-phi-edges is now gone, and so is the hack to disable it when using
the local register allocator. The PHIElimination pass no longer has
LiveVariables as a prerequisite - that is what broke the local allocator.
Instead we do critical edge splitting when possible - that is when
LiveVariables is available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 18:01:35 +00:00