Chris Lattner
d12eac0b1b
Implement constant propogation of shift instructions
...
llvm-svn: 2471
2002-05-06 03:01:37 +00:00
Chris Lattner
9606fd4830
Ok, really it only takes me 3 times to get this right!
...
Now use #if 0 instead of #ifdef 0
llvm-svn: 2448
2002-05-02 21:49:50 +00:00
Chris Lattner
de442f70ac
Oops, disable debugging code all the way. :)
...
llvm-svn: 2447
2002-05-02 21:47:40 +00:00
Chris Lattner
7d4f3ed1f2
* Finish the implementation of isEdgeFeasible this fixes bug:
...
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.
llvm-svn: 2446
2002-05-02 21:44:00 +00:00
Chris Lattner
b30088a50d
* Enable SCCP debugging to be turned on with a simple change of #define
...
* 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
llvm-svn: 2445
2002-05-02 21:18:01 +00:00
Chris Lattner
28a8acc476
* Simplify the code by not bothering to name the folded constant
...
* 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
llvm-svn: 2443
2002-05-02 20:32:51 +00:00
Chris Lattner
b7df910c1a
* Add ability to eliminate a bunch of different cascading cast variations
...
* Allow elimination of getelementptr X, uint 0 (which is a noop)
llvm-svn: 2428
2002-05-02 17:06:02 +00:00
Chris Lattner
a6cb49c533
Add folding rules for mul X, 0 and mul X, 2
...
llvm-svn: 2417
2002-04-29 22:24:47 +00:00
Chris Lattner
5d1ac4dbc9
Significantly clean up SCCP pass. Now the two classes are merged and in
...
an anonymous namespace where they belong.
llvm-svn: 2415
2002-04-29 21:26:08 +00:00
Chris Lattner
48e73edf57
Range insertion now returns an iterator
...
llvm-svn: 2414
2002-04-29 21:25:34 +00:00
Chris Lattner
5d17e49ad5
Remove unused files: This is the old induction varaible cannonicalization
...
pass built on top of interval analysis
llvm-svn: 2411
2002-04-29 20:18:00 +00:00
Chris Lattner
f5d07697e6
changes because iMemory.h no longer #includes DerivedTypes.h
...
This only requires Type.h anyway
llvm-svn: 2405
2002-04-29 18:48:30 +00:00
Chris Lattner
96e0c48175
Eliminate duplicate or unneccesary #include's
...
llvm-svn: 2397
2002-04-29 17:42:12 +00:00
Chris Lattner
3909059b6a
Remove broken assertion.
...
llvm-svn: 2396
2002-04-29 16:20:25 +00:00
Chris Lattner
589debc4ba
Add new optional getPassName() virtual function that a Pass can override
...
to make debugging output a lot nicer.
llvm-svn: 2395
2002-04-29 14:57:45 +00:00
Chris Lattner
56828a18c4
More cleanups
...
llvm-svn: 2392
2002-04-29 01:58:47 +00:00
Chris Lattner
a8688d69c5
Code cleanups
...
llvm-svn: 2391
2002-04-29 01:22:55 +00:00
Chris Lattner
ec70d92221
Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA
...
llvm-svn: 2386
2002-04-28 21:27:06 +00:00
Chris Lattner
321a8cf4ba
Split ConstantVals.h into Constant.h and Constants.h
...
llvm-svn: 2378
2002-04-28 19:55:58 +00:00
Chris Lattner
07fe96ca98
Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes
...
to the global namespace
llvm-svn: 2370
2002-04-28 16:21:30 +00:00
Chris Lattner
0bd57e6e99
Initial checkin of simple&fast SSA based GCSE algorithm
...
llvm-svn: 2338
2002-04-28 00:47:11 +00:00
Chris Lattner
536cf1b13f
* Rename MethodPass class to FunctionPass
...
- 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
llvm-svn: 2333
2002-04-27 06:56:12 +00:00
Chris Lattner
0c04e4d1ef
Changes because the Terminator::getSuccessor function now FAILS if successor
...
IDX is out of range instead of returning null.
llvm-svn: 2332
2002-04-27 03:15:45 +00:00
Chris Lattner
078d292f4c
Change Constant::getNullConstant to Constant::getNullValue
...
llvm-svn: 2323
2002-04-27 02:25:14 +00:00
Chris Lattner
a392a80a60
Significantly rework InstructionCombining to work better and to be cleaner.
...
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.
llvm-svn: 2292
2002-04-18 17:39:14 +00:00
Chris Lattner
bb60c83409
Convert SCCP over to use InstVisitor instead of hand crafted switch
...
llvm-svn: 2286
2002-04-18 15:13:15 +00:00
Chris Lattner
b736829547
GEP instructions can never be constant propogated.
...
llvm-svn: 2284
2002-04-18 14:44:13 +00:00
Chris Lattner
5e7d6d8066
Store instructions always return void, so they never get a name
...
llvm-svn: 2283
2002-04-18 14:43:54 +00:00
Chris Lattner
1923a5cfaa
Eliminate cast of same type instructions.
...
llvm-svn: 2251
2002-04-15 19:45:29 +00:00
Chris Lattner
5e12c7caf5
Move FunctionArgument out of iOther.h into Argument.h and rename class to
...
be 'Argument' instead of FunctionArgument.
llvm-svn: 2216
2002-04-09 19:48:49 +00:00
Chris Lattner
b2038512b2
Add explicit #includes of Function.h to make up for the removed #include
...
in iOther.h
llvm-svn: 2209
2002-04-09 19:08:28 +00:00
Chris Lattner
7ae20d642d
Add #includes to make up for #includes pruned out of header files.
...
llvm-svn: 2207
2002-04-09 18:37:46 +00:00
Chris Lattner
31e5838296
s/Method/Function
...
Remove extraneous #includes of llvm/Assembly/Writer
llvm-svn: 2178
2002-04-08 22:03:00 +00:00
Chris Lattner
44f14449c4
ConstantHandling moved into VMCore library
...
llvm-svn: 2165
2002-04-08 20:18:09 +00:00
Chris Lattner
bc15ae64dd
Change references to the Method class to be references to the Function
...
class. The Method class is obsolete (renamed) and all references to it
are being converted over to Function.
llvm-svn: 2144
2002-04-07 20:49:59 +00:00
Chris Lattner
b7f4043df7
Simplify code a lot by using the Module::getFunction & getOrInsertFunction
...
llvm-svn: 2028
2002-03-29 03:38:05 +00:00
Chris Lattner
849c762b02
Change references from Method to Function
...
change references from MethodARgument to FunctionArgument
llvm-svn: 1991
2002-03-26 18:01:55 +00:00
Vikram S. Adve
1f5e8f93cc
Major overhaul to support arbitrary mixed array and structure indices.
...
Also moved to the Scalar/ directory and renamed to "MultiDim".
llvm-svn: 1961
2002-03-24 03:21:18 +00:00
Vikram S. Adve
3294262573
New pass to decompose multi-dimensional array references into
...
a sequence of 1-D references, using a sequence of getElementPtrs.
llvm-svn: 1948
2002-03-23 20:43:39 +00:00
Chris Lattner
b0128957b1
Fix bug: test/Regression/Other/2002-03-11-InstCombineHang.ll
...
llvm-svn: 1864
2002-03-11 23:28:45 +00:00
Chris Lattner
889b1e5b00
Fix bug: test/Regression/Other/2002-03-11-ConstPropCrash.ll
...
llvm-svn: 1858
2002-03-11 22:11:07 +00:00
Chris Lattner
e2383e8592
Change over to use new style pass mechanism, now passes only expose small
...
creation functions in their public header file, unless they can help it.
llvm-svn: 1816
2002-02-26 21:46:54 +00:00
Chris Lattner
8e9be000a7
* Pull BasicBlock::pred_* and BasicBlock::succ_* out of BasicBlock.h and into
...
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
llvm-svn: 1750
2002-02-12 22:39:50 +00:00
Chris Lattner
b0a2c5546b
Method.h no longer includes BasicBlock.h
...
Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h
llvm-svn: 1746
2002-02-12 21:07:25 +00:00
Chris Lattner
dc15bb209d
MethodPass's are now guaranteed to not be run on external methods!
...
llvm-svn: 1611
2002-01-31 00:51:24 +00:00
Chris Lattner
2e463f5dbe
Convert xforms over to new pass structure.
...
llvm-svn: 1605
2002-01-31 00:45:11 +00:00
Chris Lattner
2cab187296
Remove extraneous #includes
...
llvm-svn: 1588
2002-01-26 22:47:32 +00:00
Chris Lattner
0fea9f487b
Remove opt namespace
...
llvm-svn: 1587
2002-01-26 22:47:07 +00:00
Chris Lattner
71ee02c009
Implement new DeadInstElmination pass
...
remove old comment
llvm-svn: 1555
2002-01-23 05:48:24 +00:00
Chris Lattner
e12b9f9277
Don't insert a useless cast
...
llvm-svn: 1527
2002-01-22 03:30:06 +00:00
Chris Lattner
4cecd63a42
Rename LowerAllocations.h to ChangeAllocations.h since it now contains the
...
RaiseAllocations pass as well.
llvm-svn: 1525
2002-01-22 01:04:08 +00:00
Chris Lattner
83056c99ec
Pull RaiseAllocations stuff out of the CleanGCC pass into it's own pass in
...
the ChangeAllocations.h header file.
llvm-svn: 1522
2002-01-22 00:13:51 +00:00
Chris Lattner
250d937680
LowerAllocations is really a BasicBlock pass. Make it so.
...
llvm-svn: 1521
2002-01-21 23:34:02 +00:00
Chris Lattner
4454cdc5c0
Move stuff out of the Optimizations directories into the appropriate Transforms
...
directories. Eliminate the opt namespace.
llvm-svn: 1520
2002-01-21 23:17:48 +00:00
Chris Lattner
2521ae1011
Implement a more powerful, simpler, pass system. This pass system can figure
...
out how to run a collection of passes optimially given their behaviors and
charactaristics.
Convert code to use it.
llvm-svn: 1507
2002-01-21 07:31:50 +00:00
Chris Lattner
3dc9a2a61f
Changes to build successfully with GCC 3.02
...
llvm-svn: 1503
2002-01-20 22:54:45 +00:00
Chris Lattner
37ba4e2bb7
initial checkin
...
llvm-svn: 1480
2001-12-14 16:52:21 +00:00
Chris Lattner
9e6ccdd858
Remove unsized array support
...
llvm-svn: 1466
2001-12-14 16:38:04 +00:00
Chris Lattner
488f202019
Assertion could never fail because another one would in it's place. :)
...
llvm-svn: 1449
2001-12-13 00:45:40 +00:00
Chris Lattner
d89106f96b
Actually return true when a change has been made
...
llvm-svn: 1425
2001-12-05 19:41:33 +00:00
Chris Lattner
7059b60173
Fix a bug introduced by "internal linkage" work.
...
llvm-svn: 1415
2001-12-04 18:01:49 +00:00
Chris Lattner
8ec5ceb110
Fix bugs, don't do external methods which causes segv.
...
llvm-svn: 1414
2001-12-04 08:13:06 +00:00
Chris Lattner
bd85988c94
Implement induction variable simplification
...
llvm-svn: 1411
2001-12-04 04:32:29 +00:00
Chris Lattner
c4a5815033
Renamed inst_const_iterator -> const_inst_iterator
...
Renamed op_const_iterator -> const_op_iterator
Renamed PointerType::getValueType() -> PointerType::getElementType()
llvm-svn: 1408
2001-12-04 00:03:30 +00:00
Chris Lattner
f6b7da2bb5
Rename ConstPoolVal -> Constant
...
Rename ConstPool* -> Constant*
Rename ConstPoolVals.h -> ConstantVals.h
llvm-svn: 1407
2001-12-03 22:26:30 +00:00
Chris Lattner
bcf2df7058
Split the PHINode class out from the iOther.h file into the iPHINode.h file
...
llvm-svn: 1405
2001-12-03 18:02:31 +00:00
Chris Lattner
a337749b35
Initial checkin of indvar stuff
...
llvm-svn: 1404
2001-12-03 17:28:42 +00:00
Chris Lattner
463cc31132
Create a new #include "Support/..." directory structure to move things
...
from "llvm/Support/..." that are not llvm dependant.
Move files and fix #includes
llvm-svn: 1400
2001-11-27 00:03:19 +00:00
Chris Lattner
d10d3f1015
Misc cleanups
...
llvm-svn: 1377
2001-11-26 18:57:38 +00:00
Chris Lattner
8fd567523c
Expose constant propogation of an instruction in a clean way
...
llvm-svn: 1376
2001-11-26 18:57:12 +00:00
Chris Lattner
e33afc1d46
Add #includes to enable buiding in Release mode
...
llvm-svn: 1174
2001-11-07 13:49:45 +00:00
Chris Lattner
82c7401f23
Avoid making a broken transformation!
...
llvm-svn: 1115
2001-11-03 21:30:22 +00:00
Chris Lattner
a621bac2a6
Expose the low level DCE mechanism to external users
...
Refactor code to support it
llvm-svn: 1083
2001-11-01 07:00:27 +00:00
Chris Lattner
3b2c78da03
Simplify DCE code a lot
...
llvm-svn: 1079
2001-11-01 05:55:29 +00:00
Chris Lattner
986e273442
Use the correct prototype for malloc and free
...
llvm-svn: 1066
2001-10-31 06:36:23 +00:00
Chris Lattner
91fc057638
Implemented constant propogation of cast instructions
...
llvm-svn: 1064
2001-10-31 05:07:57 +00:00
Chris Lattner
40372ce62d
Convert to new simpler pass itf
...
llvm-svn: 880
2001-10-18 05:27:33 +00:00
Chris Lattner
4429216038
Convert optimizations to the pass infrastructure
...
llvm-svn: 873
2001-10-18 01:32:34 +00:00
Chris Lattner
9bfad5b7b1
Add new Pass infrastructure and some examples
...
llvm-svn: 836
2001-10-15 17:31:51 +00:00
Chris Lattner
4c81efaf8e
Support the invoke instruction
...
llvm-svn: 765
2001-10-13 06:52:41 +00:00
Chris Lattner
08b1dde37e
Commit more code over to new cast style
...
llvm-svn: 697
2001-10-02 03:41:24 +00:00
Chris Lattner
ad1b0a1a83
Convert more code to use new style casts
...
Eliminate old style casts from value.h
llvm-svn: 696
2001-10-01 20:11:19 +00:00
Chris Lattner
4c684cde80
Add more support for new style casts
...
Convert more code to use them
llvm-svn: 695
2001-10-01 18:26:53 +00:00
Chris Lattner
43781f1f96
Add support for new style casts
...
llvm-svn: 694
2001-10-01 16:18:37 +00:00
Chris Lattner
345daca305
Pull predecessor and successor iterators out of the CFG*.h files, and plop them into
...
the BasicBlock class where they should be. pred_begin/pred_end become methods on BasicBlock,
and the cfg namespace isn't used anymore.
llvm-svn: 691
2001-10-01 13:19:53 +00:00
Chris Lattner
9b45b18404
Pull iterators out of CFG.h and CFGdecls and put them in Support directory
...
llvm-svn: 664
2001-09-28 22:56:31 +00:00
Chris Lattner
2fc6c49ee7
ADCE is broken but at least we know why
...
llvm-svn: 656
2001-09-28 00:06:42 +00:00
Chris Lattner
c583ae1a1a
Make ADCE more robust, it still has problems, but it's getting closer
...
llvm-svn: 521
2001-09-09 22:26:47 +00:00
Chris Lattner
e299925703
Types and constants are wierd things in symbol tables now
...
llvm-svn: 457
2001-09-07 16:43:50 +00:00
Chris Lattner
b82abeff92
* Eliminate reference to ConstantPool class
...
* Constants are global objects that are not allocated or freed
llvm-svn: 456
2001-09-07 16:43:22 +00:00
Chris Lattner
4fc1bcadd9
Constants are now global unique objects
...
llvm-svn: 454
2001-09-07 16:42:26 +00:00
Chris Lattner
eaf4551d57
* Eliminate constant pool dependancies:
...
* Eliminate DoRemoveUnusedConstants
llvm-svn: 453
2001-09-07 16:42:08 +00:00
Chris Lattner
6a211421bf
* Supoprt global constants
...
* Remove support for local constant pools
* Eliminate constant pool merging method, which is no longer neccesary
* Disable invalid optimization (todo: fix it)
llvm-svn: 452
2001-09-07 16:41:30 +00:00
Chris Lattner
a4b4e46e90
Enable the elimination of method prototypes that are not referenced
...
llvm-svn: 325
2001-07-28 17:51:49 +00:00
Chris Lattner
ff6c44f04f
Moved inline/llvm/Tools/* to include/llvm/Support/*
...
llvm-svn: 279
2001-07-23 17:46:59 +00:00
Chris Lattner
11f4097f50
Support external methods
...
llvm-svn: 200
2001-07-15 21:43:45 +00:00
Chris Lattner
a969eb234b
Add knowledge about the struct form of the GetElementPtr instruction
...
llvm-svn: 183
2001-07-14 06:11:51 +00:00
Chris Lattner
10ff90d678
Remove dependency on the structure of ValueHolder.
...
llvm-svn: 182
2001-07-14 06:11:26 +00:00
Chris Lattner
80c9d7c165
Don't clean out the type plane of the constant pool... this is a hack. FIXME
...
llvm-svn: 172
2001-07-09 19:38:52 +00:00
Chris Lattner
3b66715c67
Implement checking for new instructions
...
llvm-svn: 163
2001-07-08 21:18:49 +00:00
Chris Lattner
acc906f1de
Use the CDG to mark branches alive on demand.
...
llvm-svn: 159
2001-07-08 18:38:36 +00:00
Chris Lattner
7a7ddef47e
Neg instruction removed. Cast instruction implemented.
...
llvm-svn: 156
2001-07-08 04:57:15 +00:00
Chris Lattner
c00392210d
Broad superficial changes:
...
* 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
llvm-svn: 152
2001-07-07 19:24:15 +00:00
Chris Lattner
6f7587e4d3
Changed the fundemental architecture of Operands for Instructions. Now
...
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!
llvm-svn: 149
2001-07-07 08:36:50 +00:00
Chris Lattner
e28135f621
Update to include right file
...
llvm-svn: 138
2001-07-06 16:32:07 +00:00
Chris Lattner
d4e8817fd9
Initial checkin. Should print dead instructions, except it doesn't do
...
control dependencies. :(
llvm-svn: 119
2001-06-30 06:39:11 +00:00
Chris Lattner
c4e564a84c
Rename DoSparseConditionalConstantProp -> DoSCCP
...
llvm-svn: 117
2001-06-30 06:37:43 +00:00
Chris Lattner
0815f96a2f
Optimizations got their own header files
...
Optimizations now live in the 'opt' namespace
include/llvm/Opt was renamed include/llvm/Optimizations
llvm-svn: 113
2001-06-30 04:36:40 +00:00
Chris Lattner
fd733edaa7
Export ConstantFoldTerminator, allow it to fold conditional branches to
...
the same label.
llvm-svn: 107
2001-06-29 23:56:58 +00:00
Chris Lattner
81bbbcfe1f
Added documentation. Constant fold terminators.
...
llvm-svn: 106
2001-06-29 23:56:23 +00:00
Chris Lattner
e005dc792d
* Factored RemovePredecessorFromBlock into BasicBlock::removePredecessor
...
* Avoid messing around with this case:
br label %A
%A: br label %A
* Enable optimizations that are correct now.
llvm-svn: 102
2001-06-29 05:24:28 +00:00
Chris Lattner
f5b28afa04
We need to make sure to remove PHI nodes in the successor that cannot be
...
executed when removing branch dest.
llvm-svn: 101
2001-06-29 05:23:10 +00:00
Chris Lattner
d616582a7a
Miscellaneous cleanups:
...
* 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
llvm-svn: 96
2001-06-27 23:41:11 +00:00
Chris Lattner
0a37aa1884
Add a new Sparse Conditional Constant Propogation pass
...
llvm-svn: 95
2001-06-27 23:38:11 +00:00
Chris Lattner
87259414f9
Misc cleanup
...
llvm-svn: 91
2001-06-27 23:36:09 +00:00
Chris Lattner
c9c6ca507f
* Expose DoConstantPoolMerging
...
* Cleanups (post->pre increment, new cleaner API, etc)
* Moved stuff into ConstantHandling.h
llvm-svn: 90
2001-06-27 23:35:26 +00:00
Chris Lattner
725a64614c
Implement induction variable injection!
...
llvm-svn: 75
2001-06-25 07:32:19 +00:00
Chris Lattner
105f271c39
A silly stupid test of the loop depth calculator was added. REMOVE in the
...
future.
llvm-svn: 72
2001-06-25 03:55:37 +00:00
Chris Lattner
89a7836d09
#include a different header due to Intervals.h splitting up
...
llvm-svn: 63
2001-06-24 04:05:45 +00:00
Chris Lattner
4ebfee6ae4
Implement a lot more functionality. Now loop invariant and linear
...
induction variables are correctly identified.
llvm-svn: 57
2001-06-22 02:24:38 +00:00
Chris Lattner
b87e26435e
Moved printing code to the Assembly/Writer library.
...
Code now detects looping intervals
llvm-svn: 52
2001-06-21 05:27:22 +00:00
Chris Lattner
5d07eeb20a
Get rid of a silly printout that isn't needed right now
...
llvm-svn: 45
2001-06-20 23:09:39 +00:00
Chris Lattner
3f0d248cea
Add capability to print a derived interval graph
...
llvm-svn: 42
2001-06-20 22:44:38 +00:00
Chris Lattner
30200aa462
Add a test case for interval code
...
llvm-svn: 36
2001-06-20 19:27:11 +00:00
Chris Lattner
469c33ad89
Updates to work with new cfg namespace
...
llvm-svn: 29
2001-06-13 19:55:22 +00:00
Chris Lattner
a6d2f96bdb
Updates to support
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* Changes in PHI node structure
llvm-svn: 25
2001-06-11 15:04:40 +00:00
Chris Lattner
5975876e9b
Updated to work with new CFG.h file.
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llvm-svn: 15
2001-06-07 21:18:45 +00:00
Chris Lattner
68035d3c02
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.
llvm-svn: 10
2001-06-07 16:59:26 +00:00
Chris Lattner
e6b9b382e2
Initial revision
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llvm-svn: 2
2001-06-06 20:29:01 +00:00