Chris Lattner
e5022fe4cd
Add factoring of multiplications, e.g. turning A*A+A*B into A*(A+B).
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Testcase here: Transforms/Reassociate/mulfactor.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26524 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-04 09:31:13 +00:00
Chris Lattner
dac58ad983
Make iostream #inclusion explicit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-22 23:32:06 +00:00
Chris Lattner
7b4ad94282
Fix a problem that Dan Berlin noticed, where reassociation would not succeed
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in building maximal expressions before simplifying them. In particular, i
cases like this:
X-(A+B+X)
the code would consider A+B+X to be a maximal expression (not understanding
that the single use '-' would be turned into a + later), simplify it (a noop)
then later get simplified again.
Each of these simplify steps is where the cost of reassociation comes from,
so this patch should speed up the already fast pass a bit.
Thanks to Dan for noticing this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23214 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 07:07:58 +00:00
Chris Lattner
2cd85da3ed
Avoid creating garbage instructions, just move the old add instruction
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to where we need it when converting -(A+B+C) -> -A + -B + -C.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23213 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 06:38:04 +00:00
Chris Lattner
368a3aabb2
add some assertions and fix problems where reassociate could access the
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Ops vector out of range
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23211 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 05:23:22 +00:00
Chris Lattner
ac83b0301e
Fix Regression/Transforms/Reassociate/2005-08-24-Crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23019 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 17:55:32 +00:00
Chris Lattner
4bc5f8071a
Use the new 'moveBefore' method to simplify some code. Really, which is
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easier to understand? :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 19:11:57 +00:00
Jeff Cohen
00b16889ab
Eliminate all remaining tabs and trailing spaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Chris Lattner
641f02f10f
Fix Reassociate/shifttest.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21839 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 03:39:25 +00:00
Chris Lattner
44b8c7d5d3
Implement Reassociate/mul-neg-add.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21788 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:41:35 +00:00
Chris Lattner
6f156856ca
Bail out earlier
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21786 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:33:47 +00:00
Chris Lattner
f33151aff0
Teach reassociate that 0-X === X*-1
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21785 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:28:52 +00:00
Chris Lattner
9c72319938
Fix PR557 and basictest[34].ll.
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This makes reassociate realize that loads should be treated as unmovable, and
gives distinct ranks to distinct values defined in the same basic block, allowing
reassociate to do its thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21783 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 20:57:04 +00:00
Chris Lattner
c9fd097a01
Add debugging information
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21781 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 20:09:57 +00:00
Chris Lattner
989f6229bc
eliminate gotos
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21780 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 19:48:43 +00:00
Chris Lattner
109d34d6ff
Improve reassociation handling of inverses, implementing inverses.ll.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21778 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 18:59:37 +00:00
Chris Lattner
4690010006
Refactor some code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21772 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 00:19:31 +00:00
Chris Lattner
cc8a2b98f2
Handle some simple cases where we can see that values get annihilated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21771 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 00:08:33 +00:00
Chris Lattner
c0649ac931
Rewrite the guts of the reassociate pass to be more efficient and logical. Instead
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of trying to do local reassociation tweaks at each level, only process an expression
tree once (at its root). This does not improve the reassociation pass in any real way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21768 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-07 21:59:39 +00:00
Chris Lattner
0975ed5f4e
Convert shifts to muls to assist reassociation. This implements
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Reassociate/shifttest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21761 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-07 04:24:13 +00:00
Chris Lattner
08b43921e1
Simplify the code and rearrange it. No major functionality changes here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21759 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-07 04:08:02 +00:00
Misha Brukman
fd93908ae8
Remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21427 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 23:48:37 +00:00
Chris Lattner
e4d5c441e0
This mega patch converts us from using Function::a{iterator|begin|end} to
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using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20597 91177308-0d34-0410-b5e6-96231b3b80d8
2005-03-15 04:54:21 +00:00
Reid Spencer
551ccae044
Changes For Bug 352
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-01 22:55:40 +00:00
Misha Brukman
d8e1eea678
Fix #includes of i*.h => Instructions.h as per PR403.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15328 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-29 17:05:13 +00:00
Chris Lattner
2fc1230dd6
Fixes working towards PR341
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14839 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-15 01:50:47 +00:00
Brian Gaeke
a9160a064f
Make this pass use a more specific debug message than "Processing:".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14541 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-01 19:27:10 +00:00
Chris Lattner
d745602662
Finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10725 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-09 06:02:20 +00:00
Brian Gaeke
d0fde30ce8
Put all LLVM code into the llvm namespace, as per bug 109.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11 22:41:34 +00:00
Misha Brukman
ed1f7c81aa
Declare FunctionPasses as such so that they can be used in FunctionPassManager.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9768 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-07 17:20:18 +00:00
John Criswell
b576c94c15
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 19:43:21 +00:00
Chris Lattner
3b237fcd38
Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9269 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-19 21:34:28 +00:00
Chris Lattner
fd05924946
Decrease usage of use_size()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9135 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-15 16:48:29 +00:00
Misha Brukman
22b9aab760
Credits now go into the top-level CREDITS.TXT
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8662 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-22 21:57:56 +00:00
Misha Brukman
5560c9d49c
Spell `necessary' correctly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7944 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-18 14:43:39 +00:00
Chris Lattner
fb5be090f5
Assign arguments different ranks so they get grouped together
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7813 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 16:16:26 +00:00
Chris Lattner
e9608e37fc
Fix bug: Reassociate/2003-08-12-InfiniteLoop.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7792 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-12 21:45:24 +00:00
Chris Lattner
6007cb6c4d
Assign finer grained ranks, make sure to reassociate top-level after reassociating bottom level
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7787 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-12 20:14:27 +00:00
Chris Lattner
6806f5614d
DEBUG got moved to Support/Debug.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7492 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-01 22:15:03 +00:00
Chris Lattner
e96fda3002
Fix spelling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5983 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-02 19:26:34 +00:00
Chris Lattner
e408e25132
Remove unnecesary &*'s
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5872 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-23 16:37:45 +00:00
Chris Lattner
f0a93ed9c5
Rename Instruction::hasSideEffects() -> mayWriteToMemory()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5620 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-24 20:48:32 +00:00
Chris Lattner
4d0a82da2d
Fix a huge performance problem in reassociate by introducing a
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rank map cache for instruction ranks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5030 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 03:56:00 +00:00
Chris Lattner
680f0c283d
Minor changes:
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* Reword comment to make more clear
* Don't print out BB's after modification made
* Don't delete and new an instruction when we need to move something, just move it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5029 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 03:49:50 +00:00
Chris Lattner
e4b730441d
Fixes to the reassociate pass to make it respect dominance properties
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Huge thanks go to Casey Carter for writing this fix, reassociate is now
reoperational!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4471 91177308-0d34-0410-b5e6-96231b3b80d8
2002-10-31 17:12:59 +00:00
Chris Lattner
cb2610ea03
- Rename AnalysisUsage::preservesAll to getPreservesAll & preservesCFG to
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setPreservesCFG to be less confusing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4255 91177308-0d34-0410-b5e6-96231b3b80d8
2002-10-21 20:00:28 +00:00
Chris Lattner
a92f696b74
Updates to work with recent Statistic's changes:
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* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
* Broke constructor to take two const char * arguments instead of one, so
that indendation can be taken care of automatically.
* Sort the list by pass name when printing
* Make sure to print all statistics as a group, instead of randomly when
the statistics dtors are called.
* Updated ProgrammersManual with new semantics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4002 91177308-0d34-0410-b5e6-96231b3b80d8
2002-10-01 22:38:41 +00:00
Chris Lattner
2a7c23ef91
Simplify code (somtimes dramatically), by using the new "auto-insert" feature
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of instruction constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3656 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 17:04:02 +00:00
Chris Lattner
a6275ccdf5
* Add support for different "PassType's"
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* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3113 91177308-0d34-0410-b5e6-96231b3b80d8
2002-07-26 21:12:46 +00:00
Chris Lattner
0c0edf8afc
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3075 91177308-0d34-0410-b5e6-96231b3b80d8
2002-07-25 06:17:51 +00:00