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56 Commits

Author SHA1 Message Date
Chris Lattner
dac58ad983 Make iostream #inclusion explicit 
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 
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 
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 
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 
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 
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. 
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 
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 
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 
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 
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. 
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 
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 
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. 
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 
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. 
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 
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 
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. 
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 
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 
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 
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. 
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 
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:". 
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 
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. 
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. 
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. 
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. 
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() 
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 
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. 
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 
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 
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 
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 
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 
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 
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() 
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 
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: 
* 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 
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 
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: 
* 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 
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" 
* 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 *** 
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
Chris Lattner
f629309f74 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3016 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:06:35 +00:00