Chris Lattner
c2b42b38f9
Fold add X, 0 for floating point types as well
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2734 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-23 17:11:38 +00:00
Chris Lattner
d9036a1aad
Fix and implement ADCE to finally work!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2720 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-22 21:32:16 +00:00
Chris Lattner
f016ea4ff8
Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2713 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-22 17:17:27 +00:00
Chris Lattner
7f9412b50d
Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll
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Improperly handling edges... by not marking them alive properly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2707 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-22 16:07:20 +00:00
Chris Lattner
573527bd5d
New CFG Simplification pass: removed from the old DCE pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2700 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-21 20:49:37 +00:00
Chris Lattner
618b4a11bb
Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll
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That was causing a miscompilation of strtol/atoi plus others
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2669 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-20 20:48:03 +00:00
Chris Lattner
a36e6c8cd5
* Make debug output conditional on #define
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* Add optimization to rank computation to not recursively search when
unneccesary.
* More agressively negate expressions to open reassociation opportunities.
* Linearize (A+B)+(C+D) into ((A+B)+C)+D
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2637 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-16 04:37:07 +00:00
Chris Lattner
0f9fd5b0f8
* Fix bug: test/Regression/Transforms/GCSE/2002-05-14-OperandSwap.ll
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By making sure to consider binary expressions identical if their operands
are backwards, but swappable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2629 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-14 19:57:25 +00:00
Chris Lattner
86c25fd556
Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2627 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-14 16:44:07 +00:00
Chris Lattner
b3bc8fa755
Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-TouchDeletedInst.ll
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"This testcase caused instcombine to fail because it got the same instruction on
it's worklist more than once (which is ok), but then deleted the instruction.
Since the inst stayed on the worklist, as soon as it came back up to be
processed, bad things happened, and opt asserted."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2623 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-14 15:24:07 +00:00
Chris Lattner
18fb2a6682
Implement elimination of loads
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2620 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-14 05:02:40 +00:00
Chris Lattner
2172db04e7
Trivial cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2617 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-13 22:04:46 +00:00
Chris Lattner
e0e734eea0
Initial checkin of LICM pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2615 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-10 22:44:58 +00:00
Chris Lattner
3dec1f2722
Add support for printing out statistics information when -stats is added to
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the command line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2601 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-10 15:38:35 +00:00
Chris Lattner
55547274bc
Fix some bugs, straighten stuff out, more work needs to be done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2600 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-10 15:37:35 +00:00
Chris Lattner
87fea85934
Initial checkin of the PiNodeInsertion pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2593 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-10 05:41:34 +00:00
Chris Lattner
53a5b57737
Handle setcc <global*>, 0 instructions, Global pointers are never null!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2582 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:11:54 +00:00
Chris Lattner
0aa7cd605d
Give the longer name to the instruction that will probably be eliminated later
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2581 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:11:23 +00:00
Chris Lattner
403717156b
Add ability to transform (x - (y - z)) into (x + (z - y))
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2566 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 01:29:19 +00:00
Chris Lattner
5c4afb9034
* Combine: A-(-B) -> A + B
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* Bugfix: A + -B and -A + B
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2561 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:46:53 +00:00
Chris Lattner
4fd56003ab
Initial checkin of expression reassociation pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2559 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:19:27 +00:00
Chris Lattner
ea54ab9cd2
Fix bug: test/Regression/Transforms/ADCE/2002-01-31-UseStuckAround.ll
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Cleanup code a lot
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2547 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:11:39 +00:00
Chris Lattner
022103b3f3
Merge all individual .h files into a single Scalar.h file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2537 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:03:00 +00:00
Chris Lattner
c8cc4cb03b
Updates to move some header files out of include/llvm/Transforms into
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the Scalar and Utils subdirectories
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2523 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 18:36:35 +00:00
Chris Lattner
497c60c0ed
Reduce dependance on TransformInternals.h, instead using the TransformUtils library
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2518 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 18:12:18 +00:00
Chris Lattner
6d7491c3cc
Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2517 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 18:11:30 +00:00
Chris Lattner
2ed01d8f0b
Factor code out to the TransformUtils library
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2516 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 18:10:55 +00:00
Chris Lattner
071d0ad2f1
* Convert InstWorkList to vector instead of set, because on big programs it
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is empirically faster by a noticable margin, even though duplicates can
happen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2511 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 04:29:32 +00:00
Chris Lattner
92deeaf7a3
* Remove all cfg simplification stuff for a new cfg simplify pass (todo)
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* Convert to worklist instead of iterative algorithm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2510 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 04:24:11 +00:00
Chris Lattner
d661937352
Only do masking for unsigned values!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2504 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 18:54:59 +00:00
Chris Lattner
89df1b58a9
* Eliminate dead code that should have been removed in last revision
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* Convert main constant propogation pass to be worklist driven instead of
iterative.
* -constprop pass no longer "constant propogates" terminator instructions
- CFG is now preserved!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2502 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 18:21:31 +00:00
Chris Lattner
473945d1dc
Handle X = phi Y --> X = Y
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2501 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 18:06:38 +00:00
Chris Lattner
f51825e3fb
* Use simplified interface to constant propogation stuff.
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* Remove dead PHI case (which could not work due to getNumOperands rather than
getNumIncomingValues. This really belongs in InstCombine, anyway so we'll
move it there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2497 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 17:54:10 +00:00
Chris Lattner
dfe81ab87a
Clean up ADCE by removing extraneous wrapper class
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2494 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 17:27:57 +00:00
Chris Lattner
ed3a55005d
Combine not (not X) -> X
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2493 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 17:03:21 +00:00
Chris Lattner
b35dde1df4
Support more cases...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2490 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 16:49:18 +00:00
Chris Lattner
3f5b877dd4
Add many more instruction combination simplifications
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2484 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 16:14:14 +00:00
Chris Lattner
cdac78b8a4
Merge blocks like this:
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void "test3"(bool %T) {
br bool %T, label %BB1, label %BB1
BB1:
ret void
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2472 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 03:02:02 +00:00
Chris Lattner
4c1061f58c
Implement constant propogation of shift instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2471 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 03:01:37 +00:00
Chris Lattner
904ec289c2
Ok, really it only takes me 3 times to get this right!
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Now use #if 0 instead of #ifdef 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2448 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 21:49:50 +00:00
Chris Lattner
52a9a1def8
Oops, disable debugging code all the way. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2447 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 21:47:40 +00:00
Chris Lattner
b9a6634466
* Finish the implementation of isEdgeFeasible this fixes bug:
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test/Regression/Transforms/SCCP/2002-05-02-EdgeFailure.ll
* SCCP now preserves the CFG: It leaves conditional branches the way they
are in the program, not simplifying them. A seperate pass should eliminate
the potentially dead basic blocks and edges in the CFG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2446 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 21:44:00 +00:00
Chris Lattner
59f0ce2a41
* Enable SCCP debugging to be turned on with a simple change of #define
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* Change worklist to a set so that duplicates cannot happen
* Add support for the invoke instruction
* Avoid marking store and free instructions as overdefined, since they
cannot produce a value anyway.
* Inline the OperandChangedState implementation
* Add isEdgeFeasible in preparation to fix a bug. Right now it behaves
exactly as before.
* Remove obsolete comment about constant pools
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2445 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 21:18:01 +00:00
Chris Lattner
0e9c515439
* Simplify the code by not bothering to name the folded constant
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* Do not skip the instruction immediately after a folded instruction. This
was causing the testcase failure:
test/Regression/Transforms/SCCP/2002-05-02-MissSecondInst.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2443 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 20:32:51 +00:00
Chris Lattner
a1be566213
* Add ability to eliminate a bunch of different cascading cast variations
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* Allow elimination of getelementptr X, uint 0 (which is a noop)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2428 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-02 17:06:02 +00:00
Chris Lattner
6c1ce21ee6
Add folding rules for mul X, 0 and mul X, 2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2417 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 22:24:47 +00:00
Chris Lattner
0dbfc05a2a
Significantly clean up SCCP pass. Now the two classes are merged and in
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an anonymous namespace where they belong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2415 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 21:26:08 +00:00
Chris Lattner
f737121054
Range insertion now returns an iterator
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2414 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 21:25:34 +00:00
Chris Lattner
94cf3b1c67
Remove unused files: This is the old induction varaible cannonicalization
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pass built on top of interval analysis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2411 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 20:18:00 +00:00
Chris Lattner
72a1d4e126
changes because iMemory.h no longer #includes DerivedTypes.h
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This only requires Type.h anyway
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2405 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 18:48:30 +00:00
Chris Lattner
c6f3ae5c66
Eliminate duplicate or unneccesary #include's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2397 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 17:42:12 +00:00
Chris Lattner
8b054c0eb9
Remove broken assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2396 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 16:20:25 +00:00
Chris Lattner
96c466b06a
Add new optional getPassName() virtual function that a Pass can override
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to make debugging output a lot nicer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2395 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 14:57:45 +00:00
Chris Lattner
097632eae3
More cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2392 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 01:58:47 +00:00
Chris Lattner
2f6f03bddd
Code cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2391 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 01:22:55 +00:00
Chris Lattner
97e52e4336
Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2386 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-28 21:27:06 +00:00
Chris Lattner
31bcdb822f
Split ConstantVals.h into Constant.h and Constants.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2378 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-28 19:55:58 +00:00
Chris Lattner
1b7f7dc4b4
Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes
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to the global namespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2370 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-28 16:21:30 +00:00
Chris Lattner
d80e973cec
Initial checkin of simple&fast SSA based GCSE algorithm
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2338 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-28 00:47:11 +00:00
Chris Lattner
f57b845547
* Rename MethodPass class to FunctionPass
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- Rename runOnMethod to runOnFunction
* Transform getAnalysisUsageInfo into getAnalysisUsage
- Method is now const
- It now takes one AnalysisUsage object to fill in instead of 3 vectors
to fill in
- Pass's now specify which other passes they _preserve_ not which ones
they modify (be conservative!)
- A pass can specify that it preserves all analyses (because it never
modifies the underlying program)
* s/Method/Function/g in other random places as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2333 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-27 06:56:12 +00:00
Chris Lattner
f2361c5e5c
Changes because the Terminator::getSuccessor function now FAILS if successor
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IDX is out of range instead of returning null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2332 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-27 03:15:45 +00:00
Chris Lattner
1a18b7cf80
Change Constant::getNullConstant to Constant::getNullValue
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2323 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-27 02:25:14 +00:00
Chris Lattner
dd841aeb8d
Significantly rework InstructionCombining to work better and to be cleaner.
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We now use an InstVisitor to delegate to different cases that we are
interested in handling. We also fix the FIXME's by adding users to the
worklist when appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2292 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-18 17:39:14 +00:00
Chris Lattner
2a632551a7
Convert SCCP over to use InstVisitor instead of hand crafted switch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2286 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-18 15:13:15 +00:00
Chris Lattner
6428a27ee3
GEP instructions can never be constant propogated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2284 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-18 14:44:13 +00:00
Chris Lattner
27e3420ce9
Store instructions always return void, so they never get a name
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2283 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-18 14:43:54 +00:00
Chris Lattner
8d70cd9607
Eliminate cast of same type instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2251 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-15 19:45:29 +00:00
Chris Lattner
73e214244f
Move FunctionArgument out of iOther.h into Argument.h and rename class to
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be 'Argument' instead of FunctionArgument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2216 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-09 19:48:49 +00:00
Chris Lattner
42a412711c
Add #includes to make up for #includes pruned out of header files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2207 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-09 18:37:46 +00:00
Chris Lattner
237e6d10f2
s/Method/Function
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Remove extraneous #includes of llvm/Assembly/Writer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2178 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-08 22:03:00 +00:00
Chris Lattner
968ddc921e
ConstantHandling moved into VMCore library
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2165 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-08 20:18:09 +00:00
Chris Lattner
2fbfdcffd3
Change references to the Method class to be references to the Function
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class. The Method class is obsolete (renamed) and all references to it
are being converted over to Function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2144 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-07 20:49:59 +00:00
Chris Lattner
79df7c0aaa
Change references from Method to Function
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change references from MethodARgument to FunctionArgument
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1991 91177308-0d34-0410-b5e6-96231b3b80d8
2002-03-26 18:01:55 +00:00
Vikram S. Adve
98d64f8d51
Major overhaul to support arbitrary mixed array and structure indices.
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Also moved to the Scalar/ directory and renamed to "MultiDim".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1961 91177308-0d34-0410-b5e6-96231b3b80d8
2002-03-24 03:21:18 +00:00
Vikram S. Adve
dfbbf7a631
New pass to decompose multi-dimensional array references into
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a sequence of 1-D references, using a sequence of getElementPtrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1948 91177308-0d34-0410-b5e6-96231b3b80d8
2002-03-23 20:43:39 +00:00
Chris Lattner
a007bc2c14
Fix bug: test/Regression/Other/2002-03-11-InstCombineHang.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1864 91177308-0d34-0410-b5e6-96231b3b80d8
2002-03-11 23:28:45 +00:00
Chris Lattner
0fce76a009
Fix bug: test/Regression/Other/2002-03-11-ConstPropCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1858 91177308-0d34-0410-b5e6-96231b3b80d8
2002-03-11 22:11:07 +00:00
Chris Lattner
bd0ef77cde
Change over to use new style pass mechanism, now passes only expose small
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creation functions in their public header file, unless they can help it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1816 91177308-0d34-0410-b5e6-96231b3b80d8
2002-02-26 21:46:54 +00:00
Chris Lattner
455889aa79
* Pull BasicBlock::pred_* and BasicBlock::succ_* out of BasicBlock.h and into
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llvm/Support/CFG.h
* Make pred & succ iterators for intervals global functions
* Add #includes that are now neccesary because BasicBlock.h doesn't include
InstrTypes.h anymore
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1750 91177308-0d34-0410-b5e6-96231b3b80d8
2002-02-12 22:39:50 +00:00
Chris Lattner
221d688a5e
Method.h no longer includes BasicBlock.h
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Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1746 91177308-0d34-0410-b5e6-96231b3b80d8
2002-02-12 21:07:25 +00:00
Chris Lattner
fcc93d2c0a
MethodPass's are now guaranteed to not be run on external methods!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1611 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-31 00:51:24 +00:00
Chris Lattner
793c6b80d3
Convert xforms over to new pass structure.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1605 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-31 00:45:11 +00:00
Chris Lattner
699a7bfd6b
Remove extraneous #includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1588 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-26 22:47:32 +00:00
Chris Lattner
33fa13c57c
Remove opt namespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1587 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-26 22:47:07 +00:00
Chris Lattner
c560f88e91
Implement new DeadInstElmination pass
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remove old comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1555 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-23 05:48:24 +00:00
Chris Lattner
59b6b8e0b3
Move stuff out of the Optimizations directories into the appropriate Transforms
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directories. Eliminate the opt namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1520 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-21 23:17:48 +00:00
Chris Lattner
697954c15d
Changes to build successfully with GCC 3.02
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1503 91177308-0d34-0410-b5e6-96231b3b80d8
2002-01-20 22:54:45 +00:00
Chris Lattner
8a2a311939
initial checkin
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1480 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-14 16:52:21 +00:00
Chris Lattner
9102aee528
Assertion could never fail because another one would in it's place. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1449 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-13 00:45:40 +00:00
Chris Lattner
4753bf21a4
Actually return true when a change has been made
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1425 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-05 19:41:33 +00:00
Chris Lattner
3bf915f2a2
Fix bugs, don't do external methods which causes segv.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1414 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-04 08:13:06 +00:00
Chris Lattner
394437ff7e
Implement induction variable simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1411 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-04 04:32:29 +00:00
Chris Lattner
e9bb2df410
Rename ConstPoolVal -> Constant
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Rename ConstPool* -> Constant*
Rename ConstPoolVals.h -> ConstantVals.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1407 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-03 22:26:30 +00:00
Chris Lattner
7061dc50b2
Split the PHINode class out from the iOther.h file into the iPHINode.h file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1405 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-03 18:02:31 +00:00
Chris Lattner
6148c02591
Initial checkin of indvar stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1404 91177308-0d34-0410-b5e6-96231b3b80d8
2001-12-03 17:28:42 +00:00
Chris Lattner
cee8f9ae67
Create a new #include "Support/..." directory structure to move things
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from "llvm/Support/..." that are not llvm dependant.
Move files and fix #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1400 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-27 00:03:19 +00:00
Chris Lattner
5b7d42b142
Misc cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1377 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-26 18:57:38 +00:00
Chris Lattner
faffb053fe
Expose constant propogation of an instruction in a clean way
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1376 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-26 18:57:12 +00:00
Chris Lattner
081431a639
Avoid making a broken transformation!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1115 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-03 21:30:22 +00:00
Chris Lattner
a1f6e648be
Expose the low level DCE mechanism to external users
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Refactor code to support it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1083 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-01 07:00:27 +00:00
Chris Lattner
edefaa1196
Simplify DCE code a lot
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1079 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-01 05:55:29 +00:00
Chris Lattner
37aabf28b3
Implemented constant propogation of cast instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1064 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-31 05:07:57 +00:00
Chris Lattner
42c9c2cce4
Convert to new simpler pass itf
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@880 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-18 05:27:33 +00:00
Chris Lattner
5680ee6b28
Convert optimizations to the pass infrastructure
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@873 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-18 01:32:34 +00:00
Chris Lattner
93d39d23b4
Support the invoke instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@765 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-13 06:52:41 +00:00
Chris Lattner
b00c582b6d
Commit more code over to new cast style
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@697 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-02 03:41:24 +00:00
Chris Lattner
1d87bcf490
Convert more code to use new style casts
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Eliminate old style casts from value.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@696 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-01 20:11:19 +00:00
Chris Lattner
cfe26c930a
Add more support for new style casts
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Convert more code to use them
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@695 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-01 18:26:53 +00:00
Chris Lattner
9636a91649
Add support for new style casts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@694 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-01 16:18:37 +00:00
Chris Lattner
f0604b84c7
Pull predecessor and successor iterators out of the CFG*.h files, and plop them into
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the BasicBlock class where they should be. pred_begin/pred_end become methods on BasicBlock,
and the cfg namespace isn't used anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@691 91177308-0d34-0410-b5e6-96231b3b80d8
2001-10-01 13:19:53 +00:00
Chris Lattner
3ff4387113
Pull iterators out of CFG.h and CFGdecls and put them in Support directory
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@664 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-28 22:56:31 +00:00
Chris Lattner
8a396e57ab
ADCE is broken but at least we know why
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@656 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-28 00:06:42 +00:00
Chris Lattner
b8259dd93c
Make ADCE more robust, it still has problems, but it's getting closer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@521 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-09 22:26:47 +00:00
Chris Lattner
13b1f0cb4b
Types and constants are wierd things in symbol tables now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@457 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-07 16:43:50 +00:00
Chris Lattner
b70d82fb39
* Eliminate reference to ConstantPool class
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* Constants are global objects that are not allocated or freed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@456 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-07 16:43:22 +00:00
Chris Lattner
7365745546
Constants are now global unique objects
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@454 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-07 16:42:26 +00:00
Chris Lattner
2f11a9ded3
* Eliminate constant pool dependancies:
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* Eliminate DoRemoveUnusedConstants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@453 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-07 16:42:08 +00:00
Chris Lattner
9b644cc627
* Supoprt global constants
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* Remove support for local constant pools
* Eliminate constant pool merging method, which is no longer neccesary
* Disable invalid optimization (todo: fix it)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@452 91177308-0d34-0410-b5e6-96231b3b80d8
2001-09-07 16:41:30 +00:00
Chris Lattner
ee7cb29866
Enable the elimination of method prototypes that are not referenced
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-28 17:51:49 +00:00
Chris Lattner
57dbb3ad63
Moved inline/llvm/Tools/* to include/llvm/Support/*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-23 17:46:59 +00:00
Chris Lattner
bc7135f5c0
Support external methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-15 21:43:45 +00:00
Chris Lattner
3b7bfdb201
Add knowledge about the struct form of the GetElementPtr instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-14 06:11:51 +00:00
Chris Lattner
20a155f5ab
Remove dependency on the structure of ValueHolder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-14 06:11:26 +00:00
Chris Lattner
c262f7298f
Don't clean out the type plane of the constant pool... this is a hack. FIXME
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-09 19:38:52 +00:00
Chris Lattner
0bd654a049
Implement checking for new instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-08 21:18:49 +00:00
Chris Lattner
72f1e9929a
Use the CDG to mark branches alive on demand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-08 18:38:36 +00:00
Chris Lattner
0908309e3c
Neg instruction removed. Cast instruction implemented.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-08 04:57:15 +00:00
Chris Lattner
a41f50dea8
Broad superficial changes:
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* Renamed getOpcode to getOpcodeName
* Changed getOpcodeName to return a const char * instead of string
* Added a getOpcode method to replace getInstType
* Changed code to use getOpcode instead of getInstType
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-07 19:24:15 +00:00
Chris Lattner
c8b25d40cb
Changed the fundemental architecture of Operands for Instructions. Now
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Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before. Getting an operand no longer requires
a virtual function call.
WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-07 08:36:50 +00:00
Chris Lattner
d818312d09
Update to include right file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138 91177308-0d34-0410-b5e6-96231b3b80d8
2001-07-06 16:32:07 +00:00
Chris Lattner
02e90d59c8
Initial checkin. Should print dead instructions, except it doesn't do
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control dependencies. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-30 06:39:11 +00:00
Chris Lattner
49c8f64747
Rename DoSparseConditionalConstantProp -> DoSCCP
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-30 06:37:43 +00:00
Chris Lattner
7e02b7e600
Optimizations got their own header files
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Optimizations now live in the 'opt' namespace
include/llvm/Opt was renamed include/llvm/Optimizations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-30 04:36:40 +00:00
Chris Lattner
2b05880476
Export ConstantFoldTerminator, allow it to fold conditional branches to
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the same label.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 23:56:58 +00:00
Chris Lattner
cb056de508
Added documentation. Constant fold terminators.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 23:56:23 +00:00
Chris Lattner
25d17a5001
* Factored RemovePredecessorFromBlock into BasicBlock::removePredecessor
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* Avoid messing around with this case:
br label %A
%A: br label %A
* Enable optimizations that are correct now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:24:28 +00:00
Chris Lattner
bca26a4c6b
We need to make sure to remove PHI nodes in the successor that cannot be
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executed when removing branch dest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:23:10 +00:00
Chris Lattner
7fc9fe3439
Miscellaneous cleanups:
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* Convert post to pre-increment for for loops
* Use generic programming more
* Use new Value::cast* instructions
* Use new Module, Method, & BasicBlock forwarding methods
* Use new facilities in STLExtras.h
* Use new Instruction::isPHINode() method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:41:11 +00:00
Chris Lattner
138a124f09
Add a new Sparse Conditional Constant Propogation pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:38:11 +00:00
Chris Lattner
3b34c59dcb
Misc cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:36:09 +00:00
Chris Lattner
531450d8a6
* Expose DoConstantPoolMerging
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* Cleanups (post->pre increment, new cleaner API, etc)
* Moved stuff into ConstantHandling.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:35:26 +00:00
Chris Lattner
d473a0acc4
Implement induction variable injection!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 07:32:19 +00:00
Chris Lattner
53b1c0161d
A silly stupid test of the loop depth calculator was added. REMOVE in the
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future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 03:55:37 +00:00
Chris Lattner
c9f39b26c0
#include a different header due to Intervals.h splitting up
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-24 04:05:45 +00:00
Chris Lattner
364b147a0f
Implement a lot more functionality. Now loop invariant and linear
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induction variables are correctly identified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-22 02:24:38 +00:00
Chris Lattner
da956802bd
Moved printing code to the Assembly/Writer library.
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Code now detects looping intervals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-21 05:27:22 +00:00
Chris Lattner
5ef7afb011
Get rid of a silly printout that isn't needed right now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 23:09:39 +00:00
Chris Lattner
568320595c
Add capability to print a derived interval graph
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 22:44:38 +00:00
Chris Lattner
d213f0f3a1
Add a test case for interval code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 19:27:11 +00:00
Chris Lattner
d36c91c9c6
Updates to work with new cfg namespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-13 19:55:22 +00:00
Chris Lattner
ee976f3371
Updates to support
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* Changes in PHI node structure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-11 15:04:40 +00:00
Chris Lattner
dac6dda315
Updated to work with new CFG.h file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 21:18:45 +00:00
Chris Lattner
f155e13092
Significant rework. DCE is still not done (see #ifdef'd out parts)
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but at least the stuff that is checked in, now works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 16:59:26 +00:00
Chris Lattner
009505452b
Initial revision
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-06 20:29:01 +00:00