Dale Johannesen [Wed, 3 Dec 2008 22:43:56 +0000 (22:43 +0000)]
Remove an unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60508
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Dan Gohman [Wed, 3 Dec 2008 21:37:21 +0000 (21:37 +0000)]
Have PseudoSourceValue override Value::dump, so that it works
on PseudoSourceValue values. This also fixes a FIXME in
lib/VMCode/AsmWriter.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60507
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Dale Johannesen [Wed, 3 Dec 2008 20:56:12 +0000 (20:56 +0000)]
Fix a misspelled function name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60506
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Chris Lattner [Wed, 3 Dec 2008 19:44:02 +0000 (19:44 +0000)]
Factor some code into a new FoldSingleEntryPHINodes method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60501
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Dan Gohman [Wed, 3 Dec 2008 19:38:38 +0000 (19:38 +0000)]
Fix an inconsistency in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60500
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Evan Cheng [Wed, 3 Dec 2008 19:38:05 +0000 (19:38 +0000)]
Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60499
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Dan Gohman [Wed, 3 Dec 2008 19:37:34 +0000 (19:37 +0000)]
Don't charge the full latency for anti and output dependencies. This is
an area where eventually it would be good to use target-dependent
information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60498
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Dale Johannesen [Wed, 3 Dec 2008 19:33:10 +0000 (19:33 +0000)]
A step towards geting linux ppc to work (see PR 3099)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60497
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Dan Gohman [Wed, 3 Dec 2008 19:32:26 +0000 (19:32 +0000)]
When looking for anti-dependences on the critical path, don't bother
examining non-anti-dependence edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60496
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Dan Gohman [Wed, 3 Dec 2008 19:30:13 +0000 (19:30 +0000)]
Add a comment about callee-saved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60495
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Dale Johannesen [Wed, 3 Dec 2008 19:25:46 +0000 (19:25 +0000)]
Fix a really wrong comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60494
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Chris Lattner [Wed, 3 Dec 2008 19:18:54 +0000 (19:18 +0000)]
fix a really incorrect comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60492
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Dan Gohman [Wed, 3 Dec 2008 18:43:12 +0000 (18:43 +0000)]
Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488
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Dan Gohman [Wed, 3 Dec 2008 18:15:48 +0000 (18:15 +0000)]
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60487
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Dan Gohman [Wed, 3 Dec 2008 18:11:40 +0000 (18:11 +0000)]
Extend X86's addFrameReference to add a MachineMemOperand for
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60486
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Rafael Espindola [Wed, 3 Dec 2008 17:14:56 +0000 (17:14 +0000)]
Fix some tests. The grep for "il" was matching "file".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60485
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Dan Gohman [Wed, 3 Dec 2008 17:10:41 +0000 (17:10 +0000)]
Update a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60484
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Duncan Sands [Wed, 3 Dec 2008 12:36:16 +0000 (12:36 +0000)]
Only check that the result of the mapping was not
a new node if the node was actually remapped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60482
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Rafael Espindola [Wed, 3 Dec 2008 11:01:37 +0000 (11:01 +0000)]
Fix bug 3140.
Print a single parameter .file directive if we have an ELF target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60480
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Richard Osborne [Wed, 3 Dec 2008 10:59:16 +0000 (10:59 +0000)]
Add support for ISD::TRAP to the XCore backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60479
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Evan Cheng [Wed, 3 Dec 2008 08:38:43 +0000 (08:38 +0000)]
Refactor code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60478
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Bill Wendling [Wed, 3 Dec 2008 08:32:02 +0000 (08:32 +0000)]
CC should only be a ConstantSDNode at this point. Just use 'cast' instead of 'dyn_cast'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60477
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Evan Cheng [Wed, 3 Dec 2008 08:20:45 +0000 (08:20 +0000)]
Fix test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60476
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Chris Lattner [Wed, 3 Dec 2008 07:48:27 +0000 (07:48 +0000)]
testcase for br undef folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60471
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Chris Lattner [Wed, 3 Dec 2008 07:48:08 +0000 (07:48 +0000)]
Teach jump threading some more simple tricks:
1) have it fold "br undef", which does occur with
surprising frequency as jump threading iterates.
2) teach j-t to delete dead blocks. This removes the successor
edges, reducing the in-edges of other blocks, allowing
recursive simplification.
3) Fold things like:
br COND, BBX, BBY
BBX:
br COND, BBZ, BBW
which also happens because jump threading iterates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60470
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Chris Lattner [Wed, 3 Dec 2008 07:45:15 +0000 (07:45 +0000)]
third time is the charm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60469
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Chris Lattner [Wed, 3 Dec 2008 07:43:05 +0000 (07:43 +0000)]
fix assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60468
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Chris Lattner [Wed, 3 Dec 2008 06:41:50 +0000 (06:41 +0000)]
don't spew tons of stuff to the output. This testcase is *not* for
loop deletion (it is for a ton of passes), which is very bad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60465
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Chris Lattner [Wed, 3 Dec 2008 06:40:52 +0000 (06:40 +0000)]
Rename DeleteBlockIfDead to DeleteDeadBlock and make it
unconditionally delete the block. All likely clients will
do the checking anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60464
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Chris Lattner [Wed, 3 Dec 2008 06:37:44 +0000 (06:37 +0000)]
Factor some code out of SimplifyCFG, forming a new
DeleteBlockIfDead method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60463
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Dan Gohman [Wed, 3 Dec 2008 05:21:24 +0000 (05:21 +0000)]
Mark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86's
foldMemoryOperand how to "fold" them, by converting them into constant-pool
loads. When they aren't folded, they use xorps/cmpeqd, but for example when
register pressure is high, they may now be folded as memory operands, which
reduces register pressure.
Also, mark V_SET0 isAsCheapAsAMove so that two-address-elimination will
remat it instead of copying zeros around (V_SETALLONES was already marked).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60461
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Bill Wendling [Wed, 3 Dec 2008 02:43:12 +0000 (02:43 +0000)]
Change label to 'carry' for unsigned adds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60460
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Dan Gohman [Wed, 3 Dec 2008 02:30:17 +0000 (02:30 +0000)]
Add a sanity-check to tablegen to catch the case where isSimpleLoad
is set but mayLoad is not set. Fix all the problems this turned up.
Change code to not use isSimpleLoad instead of mayLoad unless it
really wants isSimpleLoad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60459
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Dan Gohman [Wed, 3 Dec 2008 02:10:00 +0000 (02:10 +0000)]
Fix a missing #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60458
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Dan Gohman [Wed, 3 Dec 2008 01:55:47 +0000 (01:55 +0000)]
Add an explicit keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60457
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Dan Gohman [Wed, 3 Dec 2008 01:53:18 +0000 (01:53 +0000)]
Replace a #include with a forward-declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60456
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Dan Gohman [Wed, 3 Dec 2008 01:39:44 +0000 (01:39 +0000)]
Fix this comment to reflect that it applies to types other
than just i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60455
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Dan Gohman [Wed, 3 Dec 2008 01:28:04 +0000 (01:28 +0000)]
Fix byval arguments in the fastcc calling convention. The fastcc convention
delegates to the regular x86-32 convention which handles byval, but only
after it handles a few cases, and it's necessary to handle byval before
handling those cases. This fixes PR3122 (and rdar://
6400815), llvm-gcc
miscompiling LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60453
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Dan Gohman [Wed, 3 Dec 2008 01:10:18 +0000 (01:10 +0000)]
Add nounwind attributes to this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60451
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Dale Johannesen [Wed, 3 Dec 2008 00:52:41 +0000 (00:52 +0000)]
testcases for recent dag combiner changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60449
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Chris Lattner [Tue, 2 Dec 2008 23:33:29 +0000 (23:33 +0000)]
Fix isIntN to work with APInts > 64 bits. This method is only
used by clang apparently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60446
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Evan Cheng [Tue, 2 Dec 2008 21:57:09 +0000 (21:57 +0000)]
Remove a (what appears to be) overly strict assertion. Here is what happened:
1. ppcf128 select is expanded to f64 select's.
2. f64 select operand 0 is an i1 truncate, it's promoted to i32 zero_extend.
3. f64 select is updated. It's changed back to a "NewNode" and being re-analyzed.
4. f64 select operands are being processed. Operand 0 is a "NewNode". It's being expunged out of ReplacedValues map.
5. ExpungeNode tries to remap f64 select and notice it's a "NewNode" and assert.
Duncan, please take a look. Thanks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60443
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Dale Johannesen [Tue, 2 Dec 2008 21:17:11 +0000 (21:17 +0000)]
Minor rewrite per review feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60442
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Scott Michel [Tue, 2 Dec 2008 19:55:08 +0000 (19:55 +0000)]
Non-functional change: make custom lowering for truncate stylistically
consistent with the way it's generally done in other places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60439
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Scott Michel [Tue, 2 Dec 2008 19:53:53 +0000 (19:53 +0000)]
CellSPU:
- Incorporate Tilmann Scheller's ISD::TRUNCATE custom lowering patch
- Update SPU calling convention info, even if it's not used yet (but can be
at some point or another)
- Ensure that any-extended f32 loads are custom lowered, especially when
they're promoted for use in printf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60438
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Dan Gohman [Tue, 2 Dec 2008 19:27:20 +0000 (19:27 +0000)]
Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60434
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Owen Anderson [Tue, 2 Dec 2008 18:53:47 +0000 (18:53 +0000)]
Add support for folding spills into preceding defs when doing pre-alloc splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60433
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Dale Johannesen [Tue, 2 Dec 2008 18:40:40 +0000 (18:40 +0000)]
One more transformation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60432
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Dale Johannesen [Tue, 2 Dec 2008 18:40:09 +0000 (18:40 +0000)]
Make the code do what the comment says it does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60431
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Chris Lattner [Tue, 2 Dec 2008 18:33:11 +0000 (18:33 +0000)]
Comment typeo fix, thanks Duncan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60429
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Tilmann Scheller [Tue, 2 Dec 2008 12:12:25 +0000 (12:12 +0000)]
make it possible to custom lower TRUNCATE (needed for the CellSPU target)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60409
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Chris Lattner [Tue, 2 Dec 2008 08:16:11 +0000 (08:16 +0000)]
Implement PRE of loads in the GVN pass with a pretty cheap and
straight-forward implementation. This does not require any extra
alias analysis queries beyond what we already do for non-local loads.
Some programs really really like load PRE. For example, SPASS triggers
this ~1000 times, ~300 times in 255.vortex, and ~1500 times on 403.gcc.
The biggest limitation to the implementation is that it does not split
critical edges. This is a huge killer on many programs and should be
addressed after the initial patch is enabled by default.
The implementation of this should incidentally speed up rejection of
non-local loads because it avoids creating the repl densemap in cases
when it won't be used for fully redundant loads.
This is currently disabled by default.
Before I turn this on, I need to fix a couple of miscompilations in
the testsuite, look at compile time performance numbers, and look at
perf impact. This is pretty close to ready though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60408
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Nick Lewycky [Tue, 2 Dec 2008 08:05:48 +0000 (08:05 +0000)]
Add a new SCEV representing signed division.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60407
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Mon P Wang [Tue, 2 Dec 2008 07:35:08 +0000 (07:35 +0000)]
Removed some unnecessary code in widening.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60406
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Chris Lattner [Tue, 2 Dec 2008 07:16:45 +0000 (07:16 +0000)]
add a little helper function that does PHI translation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60405
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Chris Lattner [Tue, 2 Dec 2008 06:32:34 +0000 (06:32 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60404
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Bill Wendling [Tue, 2 Dec 2008 06:24:20 +0000 (06:24 +0000)]
Remove some errors that crept in. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60403
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Bill Wendling [Tue, 2 Dec 2008 06:22:04 +0000 (06:22 +0000)]
Merge two if-statements into one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60402
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Bill Wendling [Tue, 2 Dec 2008 06:18:11 +0000 (06:18 +0000)]
More styalistic changes. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60401
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Chris Lattner [Tue, 2 Dec 2008 06:08:04 +0000 (06:08 +0000)]
add densemap range insertion method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60400
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Bill Wendling [Tue, 2 Dec 2008 05:12:47 +0000 (05:12 +0000)]
- Remove the buggy -X/C -> X/-C transform. This isn't valid when X isn't a
constant. If X is a constant, then this is folded elsewhere.
- Added a note to Target/README.txt to indicate that we'd like to implement
this when we're able.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60399
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Bill Wendling [Tue, 2 Dec 2008 05:09:00 +0000 (05:09 +0000)]
Improve comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60398
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Bill Wendling [Tue, 2 Dec 2008 05:06:43 +0000 (05:06 +0000)]
- Reduce nesting.
- No need to do a swap on a canonicalized pattern.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60397
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Chris Lattner [Tue, 2 Dec 2008 04:52:26 +0000 (04:52 +0000)]
some random comment improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60395
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Owen Anderson [Tue, 2 Dec 2008 04:25:42 +0000 (04:25 +0000)]
Add a test for my previous PRE fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60394
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Owen Anderson [Tue, 2 Dec 2008 04:09:22 +0000 (04:09 +0000)]
Fix an issue that Chris noticed, where local PRE was not properly instantiating
a new value numbering set after splitting a critical edge. This increases
the number of instances of PRE on 403.gcc from ~60 to ~570.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60393
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Evan Cheng [Tue, 2 Dec 2008 02:15:36 +0000 (02:15 +0000)]
Fix PR3124: overly strict assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60392
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Dale Johannesen [Tue, 2 Dec 2008 01:30:54 +0000 (01:30 +0000)]
Add a few more transformations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60391
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Bill Wendling [Tue, 2 Dec 2008 01:06:39 +0000 (01:06 +0000)]
Second stab at target-dependent lowering of everyone's favorite nodes: [SU]ADDO
- LowerXADDO lowers [SU]ADDO into an ADD with an implicit EFLAGS define. The
EFLAGS are fed into a SETCC node which has the conditional COND_O or COND_C,
depending on the type of ADDO requested.
- LowerBRCOND now recognizes if it's coming from a SETCC node with COND_O or
COND_C set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60388
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Bill Wendling [Tue, 2 Dec 2008 00:07:05 +0000 (00:07 +0000)]
Reapply r60382. This time, don't mark "ADC" nodes with "implicit EFLAGS".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60385
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Bill Wendling [Mon, 1 Dec 2008 23:44:08 +0000 (23:44 +0000)]
Temporarily revert r60382. It caused CodeGen/X86/i2k.ll and others to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60383
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Bill Wendling [Mon, 1 Dec 2008 23:30:42 +0000 (23:30 +0000)]
- Have "ADD" instructions return an implicit EFLAGS.
- Add support for seto, setno, setc, and setnc instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60382
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Bill Wendling [Mon, 1 Dec 2008 23:28:22 +0000 (23:28 +0000)]
Expand getVTList, getNodeValueTypes, and SelectNodeTo to handle more value types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60381
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Chris Lattner [Mon, 1 Dec 2008 22:35:31 +0000 (22:35 +0000)]
Add rdar reference, make this actually fail when the patch isn't applied.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60376
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Dale Johannesen [Mon, 1 Dec 2008 22:00:01 +0000 (22:00 +0000)]
Consider only references to an IV within the loop when
figuring out the base of the IV. This produces better
code in the example. (Addresses use (IV) instead of
(BASE,IV) - a significant improvement on low-register
machines like x86).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60374
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Chris Lattner [Mon, 1 Dec 2008 21:11:25 +0000 (21:11 +0000)]
reenable array_pod_sort, this time hopefully happy on 64-bit
and big endian systems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60371
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Bill Wendling [Mon, 1 Dec 2008 21:06:30 +0000 (21:06 +0000)]
Don't rebuild RHSNeg. Just use the one that's already there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60370
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Bill Wendling [Mon, 1 Dec 2008 21:03:43 +0000 (21:03 +0000)]
Document what this check is doing. Also, no need to cast to ConstantInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60369
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Bill Wendling [Mon, 1 Dec 2008 19:46:27 +0000 (19:46 +0000)]
Use a simple comparison. Overflow on integer negation can only occur when the
integer is "minint".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60366
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Chris Lattner [Mon, 1 Dec 2008 19:45:45 +0000 (19:45 +0000)]
don't #include <algorithm> into the llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60365
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Scott Michel [Mon, 1 Dec 2008 17:56:02 +0000 (17:56 +0000)]
CellSPU:
- Fix v2[if]64 vector insertion code before IBM files a bug report.
- Ensure that zero (0) offsets relative to $sp don't trip an assert
(add $sp, 0 gets legalized to $sp alone, tripping an assert)
- Shuffle masks passed to SPUISD::SHUFB are now v16i8 or v4i32
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60358
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Chris Lattner [Mon, 1 Dec 2008 17:00:08 +0000 (17:00 +0000)]
switch to std::sort until I have time to sort this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60354
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Chris Lattner [Mon, 1 Dec 2008 16:55:19 +0000 (16:55 +0000)]
cleanups suggested by duncan, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60353
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Chris Lattner [Mon, 1 Dec 2008 16:50:01 +0000 (16:50 +0000)]
define array_pod_sort in terms of operator< instead of my brain
damaged approximation. This should fix it on big endian platforms
and on 64-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60352
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Duncan Sands [Mon, 1 Dec 2008 11:41:29 +0000 (11:41 +0000)]
There are no longer any places that require a
MERGE_VALUES node with only one operand, so get
rid of special code that only existed to handle
that possibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60349
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Duncan Sands [Mon, 1 Dec 2008 11:39:25 +0000 (11:39 +0000)]
Change the interface to the type legalization method
ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60348
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Bill Wendling [Mon, 1 Dec 2008 08:32:40 +0000 (08:32 +0000)]
Generalize the FoldOrWithConstant method to fold for any two constants which
don't have overlapping bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60344
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Bill Wendling [Mon, 1 Dec 2008 08:23:25 +0000 (08:23 +0000)]
Reduce copy-and-paste code by splitting out the code into its own function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60343
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Bill Wendling [Mon, 1 Dec 2008 08:09:47 +0000 (08:09 +0000)]
Use m_Specific() instead of double matching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60341
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Bill Wendling [Mon, 1 Dec 2008 07:47:02 +0000 (07:47 +0000)]
Move pattern check outside of the if-then statement. This prevents us from fiddling with constants unless we have to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60340
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Chris Lattner [Mon, 1 Dec 2008 07:35:54 +0000 (07:35 +0000)]
Rename some variables, only increment BI once at the start of the loop instead of throughout it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60339
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Chris Lattner [Mon, 1 Dec 2008 07:29:03 +0000 (07:29 +0000)]
pull the predMap densemap out of the inner loop of performPRE, so
that it isn't reallocated all the time. This is a tiny speedup for
GVN: 3.90->3.88s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60338
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Chris Lattner [Mon, 1 Dec 2008 06:52:57 +0000 (06:52 +0000)]
switch a couple more calls to use array_pod_sort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60337
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Chris Lattner [Mon, 1 Dec 2008 06:50:46 +0000 (06:50 +0000)]
don't assume iterators implicitly convert to pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60336
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Chris Lattner [Mon, 1 Dec 2008 06:49:59 +0000 (06:49 +0000)]
Introduce a new array_pod_sort function and switch LSR to use it
instead of std::sort. This shrinks the release-asserts LSR.o file
by 1100 bytes of code on my system.
We should start using array_pod_sort where possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60335
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Chris Lattner [Mon, 1 Dec 2008 06:27:41 +0000 (06:27 +0000)]
Eliminate use of setvector for the DeadInsts set, just use a smallvector.
This is a lot cheaper and conceptually simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60332
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Chris Lattner [Mon, 1 Dec 2008 06:14:28 +0000 (06:14 +0000)]
DeleteTriviallyDeadInstructions is always passed the
DeadInsts ivar, just use it directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60330
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Chris Lattner [Mon, 1 Dec 2008 06:11:32 +0000 (06:11 +0000)]
simplify DeleteTriviallyDeadInstructions again, unlike my previous
buggy rewrite, this notifies ScalarEvolution of a pending instruction
about to be removed and then erases it, instead of erasing it then
notifying.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60329
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Chris Lattner [Mon, 1 Dec 2008 05:16:26 +0000 (05:16 +0000)]
simplify these patterns using m_Specific. No need to grep for
xor in testcase (or is a substring).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60328
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Chris Lattner [Mon, 1 Dec 2008 04:48:07 +0000 (04:48 +0000)]
Teach jump threading to clean up after itself, DCE and constfolding the
new instructions it simplifies. Because we're threading jumps on edges
with constants coming in from PHI's, we inherently are exposing a lot more
constants to the new block. Folding them and deleting dead conditions
allows the cost model in jump threading to be more accurate as it iterates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60327
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