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331 Commits

Author SHA1 Message Date
Chris Lattner
904ec289c2 Ok, really it only takes me 3 times to get this right! 
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. :) 
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: 
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 
* 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 
* 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
872265ee1b ExprTypeConvert will already do this transformation, no need to specialize 
it here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2431 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:38:55 +00:00
Chris Lattner
1f8d13c361 Be a little more efficient, do not generate loads and stores with indices in them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2430 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:38:14 +00:00
Chris Lattner
bbad858b3a Fix bug: test/Regression/Transforms/LevelRaise/2002-05-02-BadCastElimination.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2429 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:37:34 +00:00
Chris Lattner
a1be566213 * Add ability to eliminate a bunch of different cascading cast variations 
* 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
68d024dde4 Fixed bug: test/Regression/Transforms/Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2423 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-01 15:38:23 +00:00
Chris Lattner
71d3934bad Remove unneccesary pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2420 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-30 20:52:49 +00:00
Chris Lattner
6c1ce21ee6 Add folding rules for mul X, 0 and mul X, 2 
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 
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 
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 
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
4840146b46 Fix for problem when allocating something like this: 
malloc(100-i);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2409 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 20:09:21 +00:00
Chris Lattner
72a1d4e126 changes because iMemory.h no longer #includes DerivedTypes.h 
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
f772f8ef38 Eliminate dead global variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2400 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 18:13:11 +00:00
Chris Lattner
c6f3ae5c66 Eliminate duplicate or unneccesary #include's 
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. 
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 
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 
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 
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 
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 
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
b9ddce65c2 Eliminate the PromoteInstance class, incorporating it into the PromotePass 
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2375 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 19:12:38 +00:00
Chris Lattner
0adb9f95ea Eliminate visited, CurrentValue, and WriteSets as instance variables of 
PromoteInstance.  Make them local variables that are passed around as
appropriate.  Especially in the case of CurrentValue, this makes the
code simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2374 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:54:01 +00:00
Chris Lattner
5b5df1747f * Fix bug: test/Regression/Transforms/Mem2Reg/2002-03-28-UninitializedVal.ll 
* Minor cleanup that was missed in last patch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2373 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:39:46 +00:00
Chris Lattner
9f4eb01dd4 This huge changeset is a strictly cleanup change 
Bugfixes will come in the next revision so that the diff is obvious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2372 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:27:55 +00:00
Chris Lattner
1b7f7dc4b4 Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes 
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
100d6daca4 Be careful not to make "external" function internal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2363 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 05:48:34 +00:00
Chris Lattner
dbb1735673 Initial checkin of new "Internalize" pass for GCCLD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2362 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 05:43:27 +00:00
Chris Lattner
d80e973cec Initial checkin of simple&fast SSA based GCSE algorithm 
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
a298d27808 Change the Dominator info and LoopInfo classes to keep track of BasicBlock's, not 
const BasicBlocks


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2337 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 00:15:57 +00:00
Chris Lattner
483e14ee04 s/Method/Function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2336 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 07:27:19 +00:00
Chris Lattner
f57b845547 * 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


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 
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
8e343330a5 * Change Constant::getNullConstant to Constant::getNullValue 
* Add support for pool allocating array allocations of varying size


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2329 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 02:29:32 +00:00
Chris Lattner
1a18b7cf80 Change Constant::getNullConstant to Constant::getNullValue 
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
7b5577b371 Programs that actually free memory were broken 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2307 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-18 22:11:30 +00:00
Chris Lattner
0154505ab7 Add a fixme so that we don't forget this is broken. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2298 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-18 18:52:03 +00:00
Chris Lattner
dd841aeb8d 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.


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 
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. 
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 
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
3b87167ac4 Correctly transform dependant arguments, allowing the perimeter bm to work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2282 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-18 14:43:30 +00:00
Chris Lattner
4a94a70250 Add casts for documentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2272 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-16 22:10:52 +00:00
Chris Lattner
169bffe28a * Clean up the code a bit 
* Allow structs with negative offsets.  This enables the em3d benchmark to
  be made typesafe.  In this case, the struct had an array as the first
  element, so a negative index was ok (the expr was -8 + 8x)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2271 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-16 22:10:36 +00:00
Chris Lattner
09b9212b6e run an extra pass after a function has been transformed to eliminate 
obviously duplicate loads of the pool base.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2255 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-15 22:42:23 +00:00
Chris Lattner
8d70cd9607 Eliminate cast of same type instructions. 
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