7f8897f22e
eliminate RegisterOpt. It does the same thing as RegisterPass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29925 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 22:42:52 +00:00
ae74f55552
Fix Transforms/Reassociate/2006-04-27-ReassociateVector.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28007 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-28 04:14:49 +00:00
e9efecbf47
Implement a FIXME, recusively reassociating
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A*A*B + A*A*C --> A*(A*B+A*C) --> A*(A*(B+C))
This implements Reassociate/mul-factor3.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26757 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-14 16:04:29 +00:00
895b392269
extract some code into a method, no functionality change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26755 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-14 07:11:11 +00:00
22a66c41f3
Promote shifts by a constant to multiplies so that we can reassociate
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(x<<1)+(y<<1) -> (X+Y)<<1. This implements
Transforms/Reassociate/shift-factor.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26753 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-14 06:55:18 +00:00
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
