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10483 Commits

Author SHA1 Message Date
Chris Lattner 71cbd42b98 Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline 
llvm-svn: 2713
 2002-05-22 17:17:27 +00:00
Chris Lattner a482d52ff4 Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll 
Improperly handling edges... by not marking them alive properly

llvm-svn: 2707
 2002-05-22 16:07:20 +00:00
Chris Lattner 466a049b67 Add implementation of SimplifyCFG 
llvm-svn: 2701
 2002-05-21 20:50:24 +00:00
Chris Lattner fa7dad8cd5 New CFG Simplification pass: removed from the old DCE pass 
llvm-svn: 2700
 2002-05-21 20:49:37 +00:00
Chris Lattner 4b009adc77 Simplify interface to ConstantFoldTerminator 
llvm-svn: 2697
 2002-05-21 20:04:50 +00:00
Chris Lattner ace7b8d3bd * Change commandline options a bit to be nicer 
* Insert accurate prototypes for functions
* Insert casts to use accurate prototypes

llvm-svn: 2677
 2002-05-20 21:43:59 +00:00
Chris Lattner b710b1fb22 Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll 
That was causing a miscompilation of strtol/atoi plus others

llvm-svn: 2669
 2002-05-20 20:48:03 +00:00
Vikram S. Adve 47f37c3404 Hash pointer values to a sequence number to get identical results from 
lli and llc.  This is controlled with options -tracehash on|off.

Also, added an option to specify which functions should be traced.
Particularly useful to reduce output volume in basic-block tracing.

llvm-svn: 2646
 2002-05-19 15:39:02 +00:00
Chris Lattner 7bc532dded * Make debug output conditional on #define 
* Add optimization to rank computation to not recursively search when
  unneccesary.
* More agressively negate expressions to open reassociation opportunities.
* Linearize (A+B)+(C+D) into ((A+B)+C)+D

llvm-svn: 2637
 2002-05-16 04:37:07 +00:00
Chris Lattner cd9837d32e * Fix bug: test/Regression/Transforms/GCSE/2002-05-14-OperandSwap.ll 
By making sure to consider binary expressions identical if their operands
are backwards, but swappable.

llvm-svn: 2629
 2002-05-14 19:57:25 +00:00
Chris Lattner 170ed7b6a3 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
llvm-svn: 2627
 2002-05-14 16:44:07 +00:00
Chris Lattner 053c0939e3 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-TouchDeletedInst.ll 
"This testcase caused instcombine to fail because it got the same instruction on
it's worklist more than once (which is ok), but then deleted the instruction.
Since the inst stayed on the worklist, as soon as it came back up to be
processed, bad things happened, and opt asserted."

llvm-svn: 2623
 2002-05-14 15:24:07 +00:00
Chris Lattner a3c3456e7f Fix a major source of "type unsafety", where a cast is neccesary, but can 
be put either before or after a load.  We chose to cast the value loaded
instead of the pointer to load from.

Fixes bug: test/Regression/Transforms/LevelRaise/2002-05-10-LoadPeephole.ll

llvm-svn: 2621
 2002-05-14 05:23:45 +00:00
Chris Lattner d38ddb1164 Implement elimination of loads 
llvm-svn: 2620
 2002-05-14 05:02:40 +00:00
Chris Lattner 7ab51787ca Trivial cleanups 
llvm-svn: 2617
 2002-05-13 22:04:46 +00:00
Chris Lattner 6ec05f551c Initial checkin of LICM pass 
llvm-svn: 2615
 2002-05-10 22:44:58 +00:00
Chris Lattner 0b18c1d64e Add support for printing out statistics information when -stats is added to 
the command line

llvm-svn: 2601
 2002-05-10 15:38:35 +00:00
Chris Lattner bad1b4dfce Fix some bugs, straighten stuff out, more work needs to be done. 
llvm-svn: 2600
 2002-05-10 15:37:35 +00:00
Chris Lattner da2eddd5c4 * Add support for the -stats command line option to report how much is changed 
* Make cast-of-self-ty DCE the dead cast instruction immediately instead of
  waiting for it to be DCE'd by another sweep over the function.  This speeds
  this up noticably.

llvm-svn: 2597
 2002-05-10 15:29:25 +00:00
Chris Lattner 014ee634ce Initial checkin of the PiNodeInsertion pass 
llvm-svn: 2593
 2002-05-10 05:41:34 +00:00
Chris Lattner 1fc23f382e Handle setcc <global*>, 0 instructions, Global pointers are never null! 
llvm-svn: 2582
 2002-05-09 20:11:54 +00:00
Chris Lattner 6bd7ac6205 Give the longer name to the instruction that will probably be eliminated later 
llvm-svn: 2581
 2002-05-09 20:11:23 +00:00
Chris Lattner ad3c495225 Add ability to transform (x - (y - z)) into (x + (z - y)) 
llvm-svn: 2566
 2002-05-09 01:29:19 +00:00
Chris Lattner 147e975c43 * Combine: A-(-B) -> A + B 
* Bugfix:  A + -B and -A + B

llvm-svn: 2561
 2002-05-08 22:46:53 +00:00
Chris Lattner c0f5800678 Initial checkin of expression reassociation pass 
llvm-svn: 2559
 2002-05-08 22:19:27 +00:00
Chris Lattner bbcb8914e6 Give the unified exit node a name 
llvm-svn: 2550
 2002-05-07 22:14:45 +00:00
Chris Lattner c1496bda61 Fix bug: test/Regression/Transforms/ADCE/2002-01-31-UseStuckAround.ll 
Cleanup code a lot

llvm-svn: 2547
 2002-05-07 22:11:39 +00:00
Chris Lattner b4cfa7ff97 Merge all individual .h files into a single Scalar.h file 
llvm-svn: 2537
 2002-05-07 20:03:00 +00:00
Chris Lattner 4eaf9f70e0 This doesn't use DCE! 
llvm-svn: 2536
 2002-05-07 20:02:44 +00:00
Chris Lattner 15435fd550 Move UnifyFunctionExitNodes to Utils library: final resting place this time 
llvm-svn: 2531
 2002-05-07 19:18:48 +00:00
Chris Lattner 03453a0e39 fix comments and documentation in file 
llvm-svn: 2530
 2002-05-07 19:04:39 +00:00
Chris Lattner 77f791dd5b Split ChangeAllocations.cpp into Raise & LowerAllocations.cpp 
llvm-svn: 2529
 2002-05-07 19:02:48 +00:00
Chris Lattner 64d1334ba7 Cleanup implementation a bit 
llvm-svn: 2526
 2002-05-07 18:51:25 +00:00
Chris Lattner 7608a46cbe Updates to move some header files out of include/llvm/Transforms into 
the Scalar and Utils subdirectories

llvm-svn: 2523
 2002-05-07 18:36:35 +00:00
Chris Lattner 9b55e5a2f4 Reduce dependance on TransformInternals.h, instead using the TransformUtils library 
llvm-svn: 2518
 2002-05-07 18:12:18 +00:00
Chris Lattner 3d86d49604 Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h 
llvm-svn: 2517
 2002-05-07 18:11:30 +00:00
Chris Lattner 560da70f8c Factor code out to the TransformUtils library 
llvm-svn: 2516
 2002-05-07 18:10:55 +00:00
Chris Lattner 6a51585155 Factor code out of TransformInternals into the Transform Utils library 
llvm-svn: 2515
 2002-05-07 18:09:15 +00:00
Chris Lattner 664d085cb3 Build Transforms Utils library 
llvm-svn: 2514
 2002-05-07 18:08:50 +00:00
Chris Lattner 28537dff72 Add code pulled out of TransformInternals.cpp, ConstProp.cpp, and DCE.cpp 
llvm-svn: 2513
 2002-05-07 18:07:59 +00:00
Chris Lattner d66a6e33e9 * Convert InstWorkList to vector instead of set, because on big programs it 
is empirically faster by a noticable margin, even though duplicates can
  happen.

llvm-svn: 2511
 2002-05-07 04:29:32 +00:00
Chris Lattner 87e8806f05 * Remove all cfg simplification stuff for a new cfg simplify pass (todo) 
* Convert to worklist instead of iterative algorithm

llvm-svn: 2510
 2002-05-07 04:24:11 +00:00
Chris Lattner a6e047a5d9 Only do masking for unsigned values! 
llvm-svn: 2504
 2002-05-06 18:54:59 +00:00
Chris Lattner e548507e8c * Eliminate dead code that should have been removed in last revision 
* Convert main constant propogation pass to be worklist driven instead of
  iterative.
* -constprop pass no longer "constant propogates" terminator instructions
   - CFG is now preserved!

llvm-svn: 2502
 2002-05-06 18:21:31 +00:00
Chris Lattner bbbdd852b8 Handle X = phi Y --> X = Y 
llvm-svn: 2501
 2002-05-06 18:06:38 +00:00
Chris Lattner 4c3366405a * Use simplified interface to constant propogation stuff. 
* Remove dead PHI case (which could not work due to getNumOperands rather than
  getNumIncomingValues.  This really belongs in InstCombine, anyway so we'll
  move it there.

llvm-svn: 2497
 2002-05-06 17:54:10 +00:00
Chris Lattner 019f3649bd Clean up ADCE by removing extraneous wrapper class 
llvm-svn: 2494
 2002-05-06 17:27:57 +00:00
Chris Lattner 5d6bec5e26 Combine not (not X) -> X 
llvm-svn: 2493
 2002-05-06 17:03:21 +00:00
Chris Lattner 9fa53de7e9 Support more cases... 
llvm-svn: 2490
 2002-05-06 16:49:18 +00:00
Chris Lattner f4cdbf34e5 Add many more instruction combination simplifications 
llvm-svn: 2484
 2002-05-06 16:14:14 +00:00
Chris Lattner 66e25b8b62 Merge blocks like this: 
void "test3"(bool %T) {
        br bool %T, label %BB1, label %BB1
BB1:
        ret void
}

llvm-svn: 2472
 2002-05-06 03:02:02 +00:00
Chris Lattner 940daedc22 Implement constant propogation of shift instructions 
llvm-svn: 2471
 2002-05-06 03:01:37 +00:00
Chris Lattner 7b80b53ab9 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 dd390e1736 Oops, disable debugging code all the way. :) 
llvm-svn: 2447
 2002-05-02 21:47:40 +00:00
Chris Lattner fe6c9eeae3 * 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 13b52e71d8 * 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 5364d1a74a * 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 05cd52199d ExprTypeConvert will already do this transformation, no need to specialize 
it here.

llvm-svn: 2431
 2002-05-02 17:38:55 +00:00
Chris Lattner 39db871f86 Be a little more efficient, do not generate loads and stores with indices in them. 
llvm-svn: 2430
 2002-05-02 17:38:14 +00:00
Chris Lattner 94dcd411a5 Fix bug: test/Regression/Transforms/LevelRaise/2002-05-02-BadCastElimination.ll 
llvm-svn: 2429
 2002-05-02 17:37:34 +00:00
Chris Lattner 48a44f7e23 * 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 b3e81510d7 Fixed bug: test/Regression/Transforms/Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
llvm-svn: 2423
 2002-05-01 15:38:23 +00:00
Chris Lattner f328577307 Remove unneccesary pass 
llvm-svn: 2420
 2002-04-30 20:52:49 +00:00
Chris Lattner 31ba129cbe Add folding rules for mul X, 0 and mul X, 2 
llvm-svn: 2417
 2002-04-29 22:24:47 +00:00
Chris Lattner 7d3253876a 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 27eeecbb69 Range insertion now returns an iterator 
llvm-svn: 2414
 2002-04-29 21:25:34 +00:00
Chris Lattner 09bbb5c015 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 767210feb7 Fix for problem when allocating something like this: 
malloc(100-i);

llvm-svn: 2409
 2002-04-29 20:09:21 +00:00
Chris Lattner 15e8f4c012 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 b4de02df67 Eliminate dead global variables 
llvm-svn: 2400
 2002-04-29 18:13:11 +00:00
Chris Lattner d5a847057b Eliminate duplicate or unneccesary #include's 
llvm-svn: 2397
 2002-04-29 17:42:12 +00:00
Chris Lattner 2dfc667a7d Remove broken assertion. 
llvm-svn: 2396
 2002-04-29 16:20:25 +00:00
Chris Lattner 37104aace8 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 8d843f6b77 More cleanups 
llvm-svn: 2392
 2002-04-29 01:58:47 +00:00
Chris Lattner fc1a433dae Code cleanups 
llvm-svn: 2391
 2002-04-29 01:22:55 +00:00
Chris Lattner f12cc842b3 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 ca14237696 Split ConstantVals.h into Constant.h and Constants.h 
llvm-svn: 2378
 2002-04-28 19:55:58 +00:00
Chris Lattner b3d1caf947 Eliminate the PromoteInstance class, incorporating it into the PromotePass 
class.

llvm-svn: 2375
 2002-04-28 19:12:38 +00:00
Chris Lattner 13dbfe5217 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.

llvm-svn: 2374
 2002-04-28 18:54:01 +00:00
Chris Lattner ff8a62589c * Fix bug: test/Regression/Transforms/Mem2Reg/2002-03-28-UninitializedVal.ll 
* Minor cleanup that was missed in last patch

llvm-svn: 2373
 2002-04-28 18:39:46 +00:00
Chris Lattner 421873de24 This huge changeset is a strictly cleanup change 
Bugfixes will come in the next revision so that the diff is obvious.

llvm-svn: 2372
 2002-04-28 18:27:55 +00:00
Chris Lattner 78dd56fe62 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 ee2e78b86c Be careful not to make "external" function internal 
llvm-svn: 2363
 2002-04-28 05:48:34 +00:00
Chris Lattner 1b94c007dc Initial checkin of new "Internalize" pass for GCCLD 
llvm-svn: 2362
 2002-04-28 05:43:27 +00:00
Chris Lattner 1467f64f01 Initial checkin of simple&fast SSA based GCSE algorithm 
llvm-svn: 2338
 2002-04-28 00:47:11 +00:00
Chris Lattner 99b6f5cac4 Change the Dominator info and LoopInfo classes to keep track of BasicBlock's, not 
const BasicBlocks

llvm-svn: 2337
 2002-04-28 00:15:57 +00:00
Chris Lattner f998685cd9 s/Method/Function 
llvm-svn: 2336
 2002-04-27 07:27:19 +00:00
Chris Lattner c8e665431b * 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 66cfaf1da2 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 0e0c15b17a * Change Constant::getNullConstant to Constant::getNullValue 
* Add support for pool allocating array allocations of varying size

llvm-svn: 2329
 2002-04-27 02:29:32 +00:00
Chris Lattner 2716b5e524 Change Constant::getNullConstant to Constant::getNullValue 
llvm-svn: 2323
 2002-04-27 02:25:14 +00:00
Chris Lattner 271255b087 Programs that actually free memory were broken 
llvm-svn: 2307
 2002-04-18 22:11:30 +00:00
Chris Lattner 1c8d3f8996 Add a fixme so that we don't forget this is broken. 
llvm-svn: 2298
 2002-04-18 18:52:03 +00:00
Chris Lattner 260ab20422 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 6e56079654 Convert SCCP over to use InstVisitor instead of hand crafted switch 
llvm-svn: 2286
 2002-04-18 15:13:15 +00:00
Chris Lattner 5873900709 GEP instructions can never be constant propogated. 
llvm-svn: 2284
 2002-04-18 14:44:13 +00:00
Chris Lattner f40379e403 Store instructions always return void, so they never get a name 
llvm-svn: 2283
 2002-04-18 14:43:54 +00:00
Chris Lattner 3e78deaafd Correctly transform dependant arguments, allowing the perimeter bm to work. 
llvm-svn: 2282
 2002-04-18 14:43:30 +00:00
Chris Lattner cf73caa5e8 Add casts for documentation 
llvm-svn: 2272
 2002-04-16 22:10:52 +00:00
Chris Lattner 28a01b2069 * 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)

llvm-svn: 2271
 2002-04-16 22:10:36 +00:00
Chris Lattner 457e1accb2 run an extra pass after a function has been transformed to eliminate 
obviously duplicate loads of the pool base.

llvm-svn: 2255
 2002-04-15 22:42:23 +00:00
Chris Lattner 3a60d04722 Eliminate cast of same type instructions. 
llvm-svn: 2251
 2002-04-15 19:45:29 +00:00
Chris Lattner 7e35890072 * s/Method/Function 
* Fix bug where the character after a % was being discarded

llvm-svn: 2248
 2002-04-14 06:15:24 +00:00
Chris Lattner acf1902ea9 Turn off debug output 
llvm-svn: 2247
 2002-04-14 06:14:41 +00:00
Chris Lattner 50e3d32d7b * Allow datasize to be specified on the commandline 
* Build new datatypes correctly
* Transform instructions that return null pointers from functions to return
  a null index.

llvm-svn: 2244
 2002-04-13 23:13:18 +00:00
Chris Lattner 5da145b962 * Give alloca's for pool descriptors better names than "pool<n>". 
* Fill in the pool descriptor links in the pool descriptors.

llvm-svn: 2239
 2002-04-13 19:52:54 +00:00
Chris Lattner 8f796d6310 * Add names to the symbol table for pool types and modified types 
* Handle more complex structure so that power works almost
* Fix bug with pooldestroy call where we passed in the size of the object
  instead of the pool to destroy.  bisort is now pool allocated successfully!

llvm-svn: 2238
 2002-04-13 19:25:57 +00:00
Chris Lattner 441e16f735 Implement function rewriting to use offsets instead of pointers in programs. 
This now works with treeadd at least, and perhaps other programs as well.

llvm-svn: 2233
 2002-04-12 20:23:15 +00:00
Chris Lattner 011ab80ed6 * Add documentation 
* Split the CleanGCC pass into two passes, a global pass and an IP pass.
  Before it was just a global pass, but it did illegal things to the
  module, which broke other passes that were being scheduled with it by
  gccld.

llvm-svn: 2224
 2002-04-10 20:33:11 +00:00
Chris Lattner fc6737835b Implement TODO, fixing bug: 
test/Regression/Transforms/LevelRaise/2002-04-09-MissedRaise.ll

llvm-svn: 2219
 2002-04-09 20:53:36 +00:00
Chris Lattner 2e9fa6d101 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 06be180225 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 d92b01c385 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 f8e4dc33ab s/Method/Function 
Remove extraneous #includes of llvm/Assembly/Writer

llvm-svn: 2178
 2002-04-08 22:03:00 +00:00
Chris Lattner 65b529fe6d ConstantHandling moved into VMCore library 
llvm-svn: 2165
 2002-04-08 20:18:09 +00:00
Chris Lattner 0d4858a4eb Eliminate explicit use of Writer library, using debug dump output instead. 
llvm-svn: 2147
 2002-04-07 22:31:23 +00:00
Chris Lattner 62b7fd136e 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 e2f2f54f0c s/MethodType/FunctionType 
llvm-svn: 2115
 2002-04-04 22:19:18 +00:00
Chris Lattner a8bef43fbb PATypeHolder is now not a template 
llvm-svn: 2106
 2002-04-04 19:24:34 +00:00
Chris Lattner 1ec764b309 Allow scalars that point to multiple nodes when building the scalar map. 
llvm-svn: 2087
 2002-04-01 01:26:53 +00:00
Chris Lattner cf09a2a2cd Add extra case here to avoid getting spurious output 
llvm-svn: 2086
 2002-04-01 00:45:33 +00:00
Chris Lattner 0dc225cbf6 Add debug output 
llvm-svn: 2066
 2002-03-31 07:17:46 +00:00
Chris Lattner 847b6e2ee7 * Catch and ignore (for now) return instructions in tranformed functions 
* Add more debugging output
* Fix problems refering to wrong versions of various graphs
* Build the pool descriptor map!
* Clear the nodemapping map after building pool descriptor to avoid assert
* Transform the NEw function body, not the old one...
* Matrix.ll now works!

llvm-svn: 2058
 2002-03-30 20:53:14 +00:00
Chris Lattner ca9f4d39f3 * Clean up data structures [AllocDSNode -> DSNode] 
* TransformFunctionInfo now has call field form field mapping.  May be
  removed in the future.
* Moved the computation of "Scalars" into transformFunctionBody so
  transformFunction didn't have to recompute it.
* Implement the node mapping calculation in preparation to calculate
  PoolDescriptors to pass to transformFunctionBody
* Print out the node mapping [it looks right!]
* Other minor changes

llvm-svn: 2056
 2002-03-30 09:12:35 +00:00
Chris Lattner 396d5d7c62 Maintain enough information so that the pools for all of the nodes of 
the graph can be passed around.

llvm-svn: 2053
 2002-03-30 04:02:31 +00:00
Chris Lattner f32d65d5ca Implement the first batch of transformations to the methods. So far it: 
* Converts malloc instructions to poolalloc
 * Converts free instructions to poolfree
 * Convert calls to call the new cloned hacked up versions

Note that this does not modify hacked up stuff yet, just the top level
function

llvm-svn: 2052
 2002-03-29 21:25:19 +00:00
Chris Lattner 291a1b1eb2 Correctly clone the function with the extra argument types. Now we need 
to modify the function next.

This also properly recycles functions so that we don't get exponential
code blowup in the common case.

llvm-svn: 2049
 2002-03-29 19:05:48 +00:00
Chris Lattner f50cffce10 s/Method/Function 
llvm-svn: 2048
 2002-03-29 19:04:45 +00:00
Chris Lattner 16bfdb5f02 New clone function routine 
llvm-svn: 2045
 2002-03-29 19:03:54 +00:00
Chris Lattner 692ad5d9bd Find out which calls in the function we need to transform and how. 
Next step is to start hacking functions up.

llvm-svn: 2044
 2002-03-29 17:13:46 +00:00
Chris Lattner 15deaa0ab9 s/Method/Function 
llvm-svn: 2043
 2002-03-29 17:08:29 +00:00
Chris Lattner 66df97d436 Modularize code a bit 
llvm-svn: 2040
 2002-03-29 06:21:38 +00:00
Chris Lattner e0618ca2bd Implement the first step of pool allocation - Creating, initialization, and 
destruction of the pools.

llvm-svn: 2039
 2002-03-29 05:50:20 +00:00
Chris Lattner 91db58298a s/Method/Function 
llvm-svn: 2034
 2002-03-29 03:44:36 +00:00
Chris Lattner c46dcca220 Simplify code a bit by using Module::getOrInsertFunction 
llvm-svn: 2032
 2002-03-29 03:43:24 +00:00
Chris Lattner 175f37c47b Flesh out a bunch more code, print allocations that are poolable. 
llvm-svn: 2031
 2002-03-29 03:40:59 +00:00
Chris Lattner ca1500607e s/method/function 
llvm-svn: 2030
 2002-03-29 03:40:25 +00:00
Chris Lattner 870b1a2799 s/Method/Function/g 
llvm-svn: 2029
 2002-03-29 03:39:36 +00:00
Chris Lattner c13563d5c0 Simplify code a lot by using the Module::getFunction & getOrInsertFunction 
llvm-svn: 2028
 2002-03-29 03:38:05 +00:00
Chris Lattner 64fd935489 Initial checkin of Noop pass that will be the pool allocator 
llvm-svn: 2014
 2002-03-28 18:08:31 +00:00
Cameron Buschardt fea5661d49 * Move classes around 
* rename constructor function
* Move stuff into anonymous namespaces

llvm-svn: 2007
 2002-03-27 23:28:40 +00:00
Cameron Buschardt baef5b2ee2 Implemented promote mem->reg pass. 
llvm-svn: 2005
 2002-03-27 23:17:37 +00:00
Chris Lattner 57698e2c0b 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 e583c40316 Moved to directory Scalar/ and renamed. 
llvm-svn: 1977
 2002-03-24 03:55:06 +00:00
Vikram S. Adve 1ee0658a07 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
Chris Lattner 4e8c4877aa Rename Method to Function 
llvm-svn: 1957
 2002-03-23 22:51:58 +00:00
Vikram S. Adve 5d218dff24 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 b39971dfa8 Fix bug test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise3.ll 
llvm-svn: 1943
 2002-03-21 23:02:37 +00:00
Chris Lattner dc960a6d4d Fix test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise2.ll 
llvm-svn: 1941
 2002-03-21 22:39:59 +00:00
Chris Lattner 50f08078e6 Fix test/Regression/Other/2002-03-21-LevelRaiseMiss.ll 
llvm-svn: 1933
 2002-03-21 21:21:13 +00:00
Chris Lattner 06707765fa Make ConvertableToGEP handle cases where the user is indexing into the 
first element of a structure type.  Before this would not be handled because
getStructOffset would either stop immediately (because StopEarly was true
and Offset = 0), or blast past the level we wanted.

Now ConvertableToGEP steps down through the type one level at a time, checking
the Offset and Scale conditions at each step

llvm-svn: 1931
 2002-03-21 06:27:20 +00:00
Chris Lattner b874cd9560 Implement the new InsertInstBeforeInst function 
llvm-svn: 1930
 2002-03-21 06:24:00 +00:00
Chris Lattner 0d984ef719 Fix the: test/Regression/Other/2002-03-20-LevelRaiseCrash.ll bug. It turned 
out that almost always the result of the add was the same as the GEP that
would be generated.  In this case, however, it wasn't, so bad things happened.

llvm-svn: 1929
 2002-03-21 06:22:23 +00:00
Chris Lattner 14d5ae1ac5 Declare the new InsertInstBeforeInst function 
llvm-svn: 1927
 2002-03-21 06:15:53 +00:00
Chris Lattner f6c6be2891 1. Fix bug test/Regression/Other/2002-03-20-LevelRaiseBadCodegen.ll 
2. Allow negative scales in ConvertableToGEP, so that this loop from
   alloc_tree in the Olden health benchmark is correctly raised:

       for (i = 3; i >= 0; i--)
         fval[i] = alloc_tree(level - 1, label*4 + i + 1, new);

   Stepping through the array backwards caused a negative scale.

llvm-svn: 1922
 2002-03-21 03:04:38 +00:00
Chris Lattner 14fe4c60d4 Namespace qualify debugging code 
llvm-svn: 1921
 2002-03-21 03:02:07 +00:00
Vikram S. Adve 9f129ffe56 Just a comment. 
llvm-svn: 1908
 2002-03-18 03:40:25 +00:00
Vikram S. Adve 98a0150582 New pass to decompose multi-dimensional array references into 
a sequence of 1-D references, using a sequence of getElementPtrs.

llvm-svn: 1907
 2002-03-18 03:39:09 +00:00
Chris Lattner 205373ff74 Remove code designed to compensate for a bug in GCC. The bug has since 
been fixed.

llvm-svn: 1881
 2002-03-15 20:35:21 +00:00
Chris Lattner 60ab10bbef Cleanup error message output a bit 
llvm-svn: 1879
 2002-03-15 20:21:29 +00:00
Chris Lattner 4ca6cd403f Fix bug: test/Regression/Other/2002-03-14-LevelRaiseHang.ll 
llvm-svn: 1869
 2002-03-14 16:37:04 +00:00
Chris Lattner bee86626e1 Fix bug: test/Regression/Other/2002-03-11-InstCombineHang.ll 
llvm-svn: 1864
 2002-03-11 23:28:45 +00:00
Chris Lattner 7e91634005 update comments 
llvm-svn: 1862
 2002-03-11 22:21:04 +00:00
Chris Lattner 7287d698bf * Fix bug: test/Regression/Other/2002-03-11-LevelRaiseIterInvalidate.ll 
* Use more concise form of ReplaceInstWithInst to make code simpler
* Output nicer message for dead code eliminated when debugging

llvm-svn: 1861
 2002-03-11 22:19:48 +00:00
Chris Lattner 477fe0845a Fix bug: test/Regression/Other/2002-03-11-ConstPropCrash.ll 
llvm-svn: 1858
 2002-03-11 22:11:07 +00:00
Chris Lattner 7fd7b30727 Fix bug: test/Regression/Other/2002-03-11-LevelRaiseCalls.ll 
llvm-svn: 1844
 2002-03-11 17:27:34 +00:00
Chris Lattner d7789cb819 We were not correctly burrowing down multiple levels to get to a leaf. Fix this now 
llvm-svn: 1833
 2002-03-07 21:18:00 +00:00
Chris Lattner 717dba9474 Support changing the pointer type of a store for the case where we are 
storing into the first element of the structure type.

llvm-svn: 1832
 2002-03-07 21:17:35 +00:00
Chris Lattner 8032732948 Take CallGraph out of the CFG namespace. It has nothing to do with CFGs 
llvm-svn: 1820
 2002-03-06 17:16:43 +00:00
Chris Lattner 04805fa29c 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 d209550828 Move ProfilePaths class into ProfilePaths library, only expose a creation function 
llvm-svn: 1812
 2002-02-26 20:04:59 +00:00
Chris Lattner 570b8e1da8 Pass stuff by reference instead of by copy. Copying entire graphs seems like 
a bad idea

llvm-svn: 1810
 2002-02-26 19:49:45 +00:00
Chris Lattner 18ff945065 Move processGraph down lower in the file so all of the forward declarations 
can be eliminated.

llvm-svn: 1809
 2002-02-26 19:43:49 +00:00
Chris Lattner 5328c6fd97 * Changes to compile successfully with GCC 3.0 
* Eliminated memory leak in processGraph
* Pass vectors by const reference to moveDummyCode instead of by copy

llvm-svn: 1808
 2002-02-26 19:40:28 +00:00
Anand Shukla a9b9636aca Makefile for profile-paths 
llvm-svn: 1807
 2002-02-26 19:36:43 +00:00
Anand Shukla 854c302594 Initial checkin: functions on Graph used for path profile pass 
llvm-svn: 1806
 2002-02-26 19:02:16 +00:00
Anand Shukla 70a61383eb Initial checkin: instrument code to get path execution frequency 
llvm-svn: 1805
 2002-02-26 19:00:48 +00:00
Anand Shukla d0f8c88e91 Initial checkin: helper file to insert instrumentation code along edges 
llvm-svn: 1804
 2002-02-26 18:59:46 +00:00
Anand Shukla d3d1fcd08d Initial check in of graph.cpp: implements graph interface used in path profiles 
llvm-svn: 1803
 2002-02-26 18:58:39 +00:00
Anand Shukla 61a1c1ee56 New makefile to include ProfilePaths dir 
llvm-svn: 1799
 2002-02-26 18:20:27 +00:00
Chris Lattner f20671a6b6 When inlining basic blocks and instructions, give them a name! 
llvm-svn: 1796
 2002-02-25 00:31:02 +00:00
Chris Lattner 93a0341dbf Namespaces 
llvm-svn: 1791
 2002-02-24 23:03:09 +00:00
Chris Lattner ccb9e604de Handle more cases in the linker 
llvm-svn: 1771
 2002-02-18 19:05:15 +00:00
Chris Lattner 4ed4caf44a Bug fix for test/Regression/Other/2002-02-14-LevelRaiseBadAssert.ll 
llvm-svn: 1767
 2002-02-14 22:21:40 +00:00
Chris Lattner aca1090da2 Implement conversion of method pointer parameter in Call instruction 
to clean up MST benchmark.

llvm-svn: 1763
 2002-02-14 19:44:09 +00:00
Chris Lattner a5ee9139ba * Check in fix for: llvm/test/Regression/Other/2002-02-14-LevelRaiseInstDelete.ll 
* Minor reformatting.

llvm-svn: 1760
 2002-02-14 18:55:22 +00:00
Chris Lattner 83d485b310 * 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 60a6591d83 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 429a20af4c Add neccesary #include 
llvm-svn: 1742
 2002-02-12 20:19:06 +00:00
Chris Lattner 50a45782ec I forgot to provide dominance frontier information. Now it's available. 
Also add more comments.

llvm-svn: 1741
 2002-02-12 18:27:41 +00:00
Chris Lattner 12f155a6f0 Initial checkin of new memory -> register promotion pass 
llvm-svn: 1739
 2002-02-12 17:16:22 +00:00
Chris Lattner 86595ae342 General cleanup 
llvm-svn: 1628
 2002-02-01 04:53:48 +00:00
Chris Lattner f9f2896c48 Eliminate SimplifyCFG.h file, pull everything into the UnifyMethodExitNodes class 
llvm-svn: 1613
 2002-01-31 01:12:06 +00:00
Chris Lattner 352151e222 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 d5d56780e2 Convert xforms over to new pass structure. 
llvm-svn: 1605
 2002-01-31 00:45:11 +00:00
Chris Lattner ccf571a408 Convert analyses to new pass structure 
llvm-svn: 1603
 2002-01-31 00:42:27 +00:00
Chris Lattner d5851db315 Remove extraneous #includes 
llvm-svn: 1588
 2002-01-26 22:47:32 +00:00
Chris Lattner 7209dc2446 Remove opt namespace 
llvm-svn: 1587
 2002-01-26 22:47:07 +00:00
Chris Lattner ccbd4e4643 Implement new DeadInstElmination pass 
remove old comment

llvm-svn: 1555
 2002-01-23 05:48:24 +00:00
Chris Lattner 70090079e7 Don't insert a useless cast 
llvm-svn: 1527
 2002-01-22 03:30:06 +00:00
Chris Lattner 3787ee6be6 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 4f0f09757d 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 d07471d6c3 LowerAllocations is really a BasicBlock pass. Make it so. 
llvm-svn: 1521
 2002-01-21 23:34:02 +00:00
Chris Lattner ee965abc36 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 8cc83611e6 Elminate an unused variable 
llvm-svn: 1518
 2002-01-21 23:16:30 +00:00
Chris Lattner c940c536ab Rename SwapStructureContents -> IPO/SimpleStructMutation 
Move MutateStructTypes.(cpp|h) -> IPO/MutateStructTypes.(cpp|h)

llvm-svn: 1510
 2002-01-21 07:52:35 +00:00
Chris Lattner 0686e435d1 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 7f74a56e24 Changes to build successfully with GCC 3.02 
llvm-svn: 1503
 2002-01-20 22:54:45 +00:00
Chris Lattner ca081257e5 initial checkin 
llvm-svn: 1480
 2001-12-14 16:52:21 +00:00
Chris Lattner 3655cfb4e2 * isFirstClassType is now provided by the Type class 
* Add ReplaceInstWithInst

llvm-svn: 1468
 2001-12-14 16:39:22 +00:00
Chris Lattner 9dedd32ff4 * add ReplaceInstWithInst 
* Add support for pointer indexing
* Fix minor bugs that are majorly annoying

llvm-svn: 1467
 2001-12-14 16:38:59 +00:00
Chris Lattner b3364fc169 Remove unsized array support 
llvm-svn: 1466
 2001-12-14 16:38:04 +00:00
Chris Lattner b457653c6f * Support pointer indexing 
* Unsized arrays are a thing of the past, remove DoInsertArrayCast family
* Remove cases were we would get into infinite loops because we would insert a cast
  which would then be removed, inserting a different cast, ad infinitum...
* Remove some code that should be redundant with ExprTypeConvert code

llvm-svn: 1465
 2001-12-14 16:37:52 +00:00
Chris Lattner 3e88b44afc Many many changes and bugfixes: 
* Remove support for unsized arrays
* Add pointer indexing support
* Allow more arbitrary malloc type changes (which are too generous currently
  and should be fixed in the future)
* Allow more and better conversions

llvm-svn: 1464
 2001-12-14 16:35:53 +00:00
Chris Lattner 11439b2360 The proper prototype for malloc returns a pointer, not an unsized array 
llvm-svn: 1463
 2001-12-14 16:32:20 +00:00
Chris Lattner f1197b0d43 * Refactor trace values to work as a proper pass. Before it used to add 
methods while the pass was running which was a no no.  Now it adds the
  printf method at pass initialization
* Revamp code to use printf calls instead of the old style print_<type>
  calls.
* Simplify code

llvm-svn: 1457
 2001-12-14 16:26:05 +00:00
Chris Lattner f5c6f65e7f 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 e51379766b Implement more general conversions for getelementptr instructions 
llvm-svn: 1432
 2001-12-07 04:40:30 +00:00
Chris Lattner dae4d63ddf Remove code that is superceeded by code in ExprTypeConvert.cpp 
llvm-svn: 1431
 2001-12-07 04:39:01 +00:00
Chris Lattner 72da4460b3 Don't insert scales of 1 :) 
llvm-svn: 1430
 2001-12-07 04:26:02 +00:00
Chris Lattner 71ffba7b70 We can do cast-add elimination even on casts that reinterpret 
llvm-svn: 1427
 2001-12-06 18:06:13 +00:00
Chris Lattner b1995e1e69 Fix bug that caused invalid transformations to be applied 
llvm-svn: 1426
 2001-12-06 18:05:55 +00:00
Chris Lattner 674394077f Actually return true when a change has been made 
llvm-svn: 1425
 2001-12-05 19:41:33 +00:00
Chris Lattner 8d16760c21 Handle more complex array indexing expressions 
llvm-svn: 1424
 2001-12-05 19:41:16 +00:00
Chris Lattner 1d244625c0 Fix pessimizations on sized arrays 
llvm-svn: 1423
 2001-12-05 19:40:32 +00:00
Chris Lattner ad08d2fd8e Fix a few bugs. Fix pessimization handling sized arrays 
llvm-svn: 1422
 2001-12-05 19:39:15 +00:00
Chris Lattner cd7fb504a5 Hrm, don't do debugging output when debugging is off. :( 
llvm-svn: 1420
 2001-12-05 06:40:17 +00:00
Chris Lattner 617aaaad86 Fixes to type conversion stuff to match induction variables more frequently 
llvm-svn: 1417
 2001-12-05 06:34:00 +00:00
Chris Lattner 25b151dfdf Fix a bug introduced by "internal linkage" work. 
llvm-svn: 1415
 2001-12-04 18:01:49 +00:00
Chris Lattner d23d752dc5 Fix bugs, don't do external methods which causes segv. 
llvm-svn: 1414
 2001-12-04 08:13:06 +00:00
Chris Lattner 4c160c39b4 Remove printouts 
llvm-svn: 1413
 2001-12-04 08:12:53 +00:00
Chris Lattner 91daaabb56 Implement induction variable simplification 
llvm-svn: 1411
 2001-12-04 04:32:29 +00:00
Chris Lattner 2413b160ec 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 3462ae3ad7 Rename ConstPoolVal -> Constant 
Rename ConstPool*   -> Constant*
Rename ConstPoolVals.h -> ConstantVals.h

llvm-svn: 1407
 2001-12-03 22:26:30 +00:00
Chris Lattner fb5ae02e1a 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 476e6df794 Initial checkin of indvar stuff 
llvm-svn: 1404
 2001-12-03 17:28:42 +00:00
Chris Lattner f55d8013d9 Compile the scalar directory 
llvm-svn: 1403
 2001-12-03 17:28:15 +00:00
Chris Lattner 5de2204fe8 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 54d5928569 Turn off debug info 
llvm-svn: 1396
 2001-11-26 19:36:58 +00:00
Chris Lattner 302014f2e7 Make strings be internal 
llvm-svn: 1384
 2001-11-26 19:14:33 +00:00
Chris Lattner 1416a2992e Remove debugging output 
llvm-svn: 1383
 2001-11-26 19:14:16 +00:00
Chris Lattner 4219baafb5 Support internal linkage 
llvm-svn: 1382
 2001-11-26 19:14:03 +00:00
Chris Lattner 660c2f0e6f Build IPO directory 
llvm-svn: 1381
 2001-11-26 18:59:30 +00:00
Chris Lattner 22fd21ed16 Implement support for internal methods 
llvm-svn: 1380
 2001-11-26 18:59:18 +00:00
Chris Lattner ee568eb459 Include const prop as part of -raise 
llvm-svn: 1379
 2001-11-26 18:58:55 +00:00
Chris Lattner c4ad64cb9c Misc cleanups 
llvm-svn: 1377
 2001-11-26 18:57:38 +00:00
Chris Lattner 1f86880af4 Expose constant propogation of an instruction in a clean way 
llvm-svn: 1376
 2001-11-26 18:57:12 +00:00
Chris Lattner bd422e6686 Implement DCE of global values 
llvm-svn: 1360
 2001-11-26 18:42:17 +00:00
Chris Lattner 330dc57305 Support array indexing 
llvm-svn: 1345
 2001-11-26 17:00:43 +00:00
Chris Lattner c43c461ca6 Support Composite's, not just structs 
llvm-svn: 1344
 2001-11-26 17:00:13 +00:00
Chris Lattner 03386ec88b losslessCastableTypes is moved to Type class 
getStructOffsetType supports array indexing

llvm-svn: 1343
 2001-11-26 16:59:47 +00:00
Chris Lattner 2cc6d418fa Support selectable structure transformations 
llvm-svn: 1342
 2001-11-26 16:59:10 +00:00
Chris Lattner f80013a917 Support mutation of array indexing 
llvm-svn: 1341
 2001-11-26 16:58:33 +00:00
Chris Lattner f9378e7d2d Clean up code, implement array indexing stuff 
llvm-svn: 1340
 2001-11-26 16:58:14 +00:00
Chris Lattner 1df615c834 Implement array indexing reverse engineering 
llvm-svn: 1339
 2001-11-26 16:57:31 +00:00
Vikram S. Adve b601fda7ce Print incoming arguments and return values. 
llvm-svn: 1315
 2001-11-15 15:00:16 +00:00
Chris Lattner 02c43c8609 -cleangcc pass now remove type names that are never referenced and type names for pointers to primitive types. 
llvm-svn: 1312
 2001-11-15 04:34:46 +00:00
Chris Lattner 1237e86597 Remove much cruft from the MemAccessInst instruction 
llvm-svn: 1298
 2001-11-14 11:27:58 +00:00
Chris Lattner abf40ba6e8 Better heuristics for handling arrays 
llvm-svn: 1296
 2001-11-14 11:02:49 +00:00
Chris Lattner 0cd962fa61 * Change ExpressionConvertableToType to more closely match map behavior of 
ConvertExpressionToType
* Make ValueHandle's remove instruction from maps when they are deleted so that
  no false map hits occur if a subsequent instruction is allocated to the same
  space in memory.  This was a VERY VERY VERY EVIL NASTY BUG to track down. :-P

llvm-svn: 1288
 2001-11-13 05:01:36 +00:00
Chris Lattner 4f8e9468cb Avoid assertion failure when taking size of unsized array. Todo item herE 
llvm-svn: 1286
 2001-11-13 04:59:41 +00:00
Chris Lattner 1643e8ec7b Fix minor bug 
llvm-svn: 1273
 2001-11-12 20:13:04 +00:00
Ruchira Sasanka cc3da8c107 Changed insert instructions only for CONSTANTS - back to original 
llvm-svn: 1271
 2001-11-12 19:32:04 +00:00
Chris Lattner 49ec72411e Initail checking of structure swapper 
llvm-svn: 1248
 2001-11-10 07:28:25 +00:00
Chris Lattner 5dada09565 Initial checkin of structure mutator 
llvm-svn: 1246
 2001-11-10 07:26:31 +00:00
Chris Lattner 0043cc1109 Remove false optimization that basically broke everything 
llvm-svn: 1219
 2001-11-09 01:08:10 +00:00
Chris Lattner 54e9f453c9 * Add better caching of data to avoid silly recusions 
* Only check to see if uses of instructions can be converted for expressions... so we don't look at all of the uses of a constant.  This was making the code unnecessarily conservative

llvm-svn: 1218
 2001-11-08 22:06:31 +00:00
Chris Lattner 583e95e0b2 Improve raising significantly 
llvm-svn: 1214
 2001-11-08 20:19:56 +00:00
Vikram S. Adve 3b193679f0 Bug fix: cannot modify Phi operands while iterating over them! 
llvm-svn: 1203
 2001-11-08 05:25:33 +00:00
Chris Lattner 3b7199e36c Add #includes to enable buiding in Release mode 
llvm-svn: 1174
 2001-11-07 13:49:45 +00:00
Chris Lattner 6c4681ca28 Fix minor bug for shifts 
llvm-svn: 1160
 2001-11-06 21:51:48 +00:00
Chris Lattner 0136101e37 Fix bugs 
llvm-svn: 1152
 2001-11-06 08:34:29 +00:00
Chris Lattner 4031cdde57 Fix many bugs. Implement PHI transforms & other cycles 
llvm-svn: 1151
 2001-11-06 08:34:17 +00:00
Chris Lattner 710c3861b5 Fix bug with ADD nodes and malloc promotion 
llvm-svn: 1144
 2001-11-05 21:13:30 +00:00
Chris Lattner 7e89a616e6 Don't print spurious linking warnings about methods that are never used. 
Cleanup ExprTypeConvert a bit.

llvm-svn: 1141
 2001-11-05 19:43:10 +00:00
Chris Lattner 0ecba60d26 Use the expression map correctly. 
llvm-svn: 1140
 2001-11-05 18:30:53 +00:00
Chris Lattner db750679a3 New file for expression tree conversion 
llvm-svn: 1128
 2001-11-04 23:24:20 +00:00
Chris Lattner 3084cb65ff Refactor code to share stuff 
llvm-svn: 1127
 2001-11-04 23:24:06 +00:00
Chris Lattner cb3da314d9 * Relax restriction that prevented malloc promotion in certain cases 
llvm-svn: 1125
 2001-11-04 22:11:10 +00:00
Chris Lattner 36c5a79153 * Disable debug output 
* fix minor bug with taking datasize of unsized array type
* Insert code to support speculative changes later

llvm-svn: 1122
 2001-11-04 21:32:11 +00:00
Chris Lattner 40a2d9076b Convert backward conversion of expression trees into a new more powerful bidirectional approach. Add transforms for more instructions. 
llvm-svn: 1121
 2001-11-04 20:21:12 +00:00
Chris Lattner 33d9cb9903 Minor method rename 
llvm-svn: 1119
 2001-11-04 08:08:34 +00:00
Chris Lattner f00563d39d Add transformations for Load and GetElementPtr. Fix broken transform with shr. 
llvm-svn: 1118
 2001-11-04 07:42:17 +00:00
Chris Lattner eb7b620d58 Fix cast instructions that end up in bad places in GCC output 
llvm-svn: 1117
 2001-11-04 07:40:51 +00:00
Chris Lattner 033324fc0c Avoid making a broken transformation! 
llvm-svn: 1115
 2001-11-03 21:30:22 +00:00
Chris Lattner ec83fc091e Add new cleanup pass: 
//  1. PHI nodes with multiple entries for the same predecessor.  GCC sometimes
//     generates code that looks like this:
//
//  bb7:  br bool %cond1004, label %bb8, label %bb8
//  bb8: %reg119 = phi uint [ 0, %bb7 ], [ 1, %bb7 ]
//
//     which is completely illegal LLVM code.  To compensate for this, we insert
//     an extra basic block, and convert the code to look like this:
//
//  bb7: br bool %cond1004, label %bbX, label %bb8
//  bbX: br label bb8
//  bb8: %reg119 = phi uint [ 0, %bbX ], [ 1, %bb7 ]
//

llvm-svn: 1114
 2001-11-03 21:08:59 +00:00
Chris Lattner 784c623efb * Export method to merge identically named methods 
* Add code to fix PHI nodes that are missing arguments.  These PHI nodes can
  be generated by GCC if there is an uninitialized variable flowing into a merge
  point.  For example:

int foo(int y) {
  int X;
  if (y) X = 1;
  return X;
}

llvm-svn: 1110
 2001-11-03 19:51:56 +00:00
Ruchira Sasanka 629a15247a Commented out code so that copies are inserted for all phi args 
CahedCopyMap was disabled to insert phi elimination code for all phi args

llvm-svn: 1105
 2001-11-03 17:09:59 +00:00
Chris Lattner 629d7a7849 Changes to compile the TSP benchmark successfully. Favor warning instead of assertion failures. 
llvm-svn: 1103
 2001-11-03 10:04:22 +00:00
Chris Lattner 1f3947c1d1 Add code to link method together with the same name if one is vararg and the other isn't. 
This resolves definitions like this:
   %list * "foo"(...)
   %list * "foo"(int)

together which can often occur because C programmers don't put prototypes in like they should.  GRR

llvm-svn: 1102
 2001-11-03 09:19:00 +00:00
Chris Lattner 3855f2c806 Don't forget to link type names together too. Fix for Olden/mst benchmark 
llvm-svn: 1094
 2001-11-03 05:18:24 +00:00
Chris Lattner 1e60d6b762 Add extra code for debugging linker problems 
llvm-svn: 1091
 2001-11-03 03:27:29 +00:00
Chris Lattner 9bc6b190cc * Add comments for peepholes 
* Implement new peephole:
     // Peephole optimize the following instructions:
     // %t1 = cast {<...>} * %StructPtr to <ty> *
     //
     // Into: %t2 = getelementptr {<...>} * %StructPtr, <0, 0, 0, ...>
     //       %t1 = cast <eltype> * %t1 to <ty> *

  This peephole eliminated 9 evil casts in the health benchmark, and
  completely turned the addList method around.  :)

llvm-svn: 1085
 2001-11-01 17:05:27 +00:00
Chris Lattner 71c842cddf Add DCE as integral part of the level raising to avoid processing instructions that are dead 
llvm-svn: 1084
 2001-11-01 07:00:51 +00:00
Chris Lattner 7567f6c15f 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 9a13ececd8 * Implement expression type conversion for constant values 
* Fix a problem setting a name on a constant value that died because no symbol table was passed in
* Add some comments describing the passes
* Implement a new peephole:
     // Peephole optimize the following instructions:
     // %t = cast <T1>* %P to <T2> * ;; If T1 is losslessly convertable to T2
     // store <T2> %V, <T2>* %t
     //
     // Into:
     // %t = cast <T2> %V to <T1>
     // store <T1> %t2, <T1>* %P

llvm-svn: 1080
 2001-11-01 05:57:59 +00:00
Chris Lattner 04648a4cc6 Simplify DCE code a lot 
llvm-svn: 1079
 2001-11-01 05:55:29 +00:00
Chris Lattner 1267be2319 * Convert getelementptr/store pairs into a single store 
* Convert getelementptr/load pairs into a single load

llvm-svn: 1075
 2001-11-01 03:12:34 +00:00
Chris Lattner 025f9fcf80 Initial checkin of level raising code, after move and cleanup and expands from the opt directory 
llvm-svn: 1074
 2001-11-01 02:42:08 +00:00
Chris Lattner 246f157af4 Propogate name to the malloc itself instead of to the cast 
llvm-svn: 1071
 2001-11-01 02:40:36 +00:00
Chris Lattner 7e6a0d8c17 Use the correct prototype for malloc and free 
llvm-svn: 1066
 2001-10-31 06:36:23 +00:00
Chris Lattner 20726ed31b Implement code to convert %malloc and %free FUNCTION CALLS into the instruction equivalent 
llvm-svn: 1065
 2001-10-31 06:35:59 +00:00
Chris Lattner 9db8b765cd Implemented constant propogation of cast instructions 
llvm-svn: 1064
 2001-10-31 05:07:57 +00:00
Chris Lattner 34b9518c88 Initial version of GCC cleanup pass: just removes extraneous global symbol table entries for types 
llvm-svn: 1062
 2001-10-31 04:33:19 +00:00
Chris Lattner 2a2b531294 Fix bug when inlining a method that refers to a global variable 
llvm-svn: 1056
 2001-10-31 02:27:26 +00:00
Chris Lattner cba9036e34 Fix broken assertion. Didn't allow for pointer case 
llvm-svn: 1034
 2001-10-29 17:27:38 +00:00
Chris Lattner 3e95c716aa Pull method symbols over when linking. Otherwise the result of the link will appear stripped 
llvm-svn: 1033
 2001-10-29 16:55:41 +00:00
Vikram S. Adve 66aea7a58c Make newlines be newlines! This should now work in both lli and native code. 
llvm-svn: 1016
 2001-10-28 22:44:02 +00:00
Chris Lattner fc361b1d55 Remove non linking related stuff 
llvm-svn: 1015
 2001-10-28 22:43:06 +00:00
Vikram S. Adve 6e26c8b0fc Added name-mangling routines for future use. 
llvm-svn: 1003
 2001-10-28 21:38:02 +00:00
Vikram S. Adve 96f6ac9ffc Use separate functions for printing values of each type. 
Put trace code before condition-generating instruction in basic blocks
that end in a conditional branch.

llvm-svn: 1002
 2001-10-28 21:37:25 +00:00
Chris Lattner b046867a97 Fix problem linking in a method prototype when a method body exists 
llvm-svn: 965
 2001-10-23 20:43:42 +00:00
Chris Lattner e2c61267ad Refix bugs, stop using deprecated strstream header 
llvm-svn: 898
 2001-10-18 20:06:03 +00:00
Chris Lattner 4816d63844 Initial checkin 
llvm-svn: 897
 2001-10-18 20:05:37 +00:00
Vikram S. Adve a0db1c9a0e Only print values live at BB or method exit, and insert loads at each 
BB exit to read and print values stored in that BB.   Note that only
these stored values are live at method exit!.  Also, print messages at
method entry and exit.

llvm-svn: 892
 2001-10-18 18:16:11 +00:00
Vikram S. Adve 7ac553aa12 Handle multiple exit blocks correctly. 
Restore string variable cache.
Resurrect code to use formatted printing instead of PrintVal
but leave it turned off for now.

llvm-svn: 888
 2001-10-18 13:49:22 +00:00
Chris Lattner 5309e10be1 Convert to be compatible with lli. 
Need to eliminate duplicate \n entries

llvm-svn: 883
 2001-10-18 06:03:05 +00:00
Chris Lattner a0a8b5bc26 Massive hacks to try to fix subtle logic bugs. I think it's all working now, 
at least what used to.  I should disable method exit code completely because
it's broken (doesn't insert just post dominating values)

llvm-svn: 881
 2001-10-18 05:28:08 +00:00
Chris Lattner 6fea0324d7 Convert to new simpler pass itf 
llvm-svn: 880
 2001-10-18 05:27:33 +00:00
Chris Lattner 5398a6eb6c Convert optimizations to the pass infrastructure 
llvm-svn: 873
 2001-10-18 01:32:34 +00:00
Chris Lattner 1bb5f8e4ee Add new Pass infrastructure and some examples 
llvm-svn: 836
 2001-10-15 17:31:51 +00:00
Chris Lattner 162ed4d6cc Rename ConstPoolPointerReference to ConstPoolPointerRef - My fingers get tired typing that much 
llvm-svn: 822
 2001-10-15 13:21:42 +00:00
Chris Lattner 1afbdc0ea5 * getExitNode() doesn't exist in method anymore 
* Make local functions static

llvm-svn: 820
 2001-10-15 13:07:21 +00:00
Vikram S. Adve 9a35320053 Added Instrumentation subdirectory. 
llvm-svn: 819
 2001-10-15 12:01:05 +00:00
Chris Lattner c306f18c3e Implement linking of global variable constant references 
llvm-svn: 817
 2001-10-15 03:12:52 +00:00
Chris Lattner a972919f92 Minor cleanup 
llvm-svn: 812
 2001-10-14 23:29:30 +00:00
Chris Lattner 1090dc96ff Implement linker. It's 95% working now. 
llvm-svn: 810
 2001-10-14 23:29:15 +00:00
Vikram S. Adve a200a6c583 Insert code to trace values at basic block and method exits. 
Current version does not check for liveness.

llvm-svn: 800
 2001-10-14 23:18:45 +00:00
Chris Lattner 1362299644 Check in makefile 
llvm-svn: 788
 2001-10-13 16:57:03 +00:00
Chris Lattner b7b537f192 Start of a linker 
llvm-svn: 775
 2001-10-13 07:03:50 +00:00
Chris Lattner f0b68888af Support the invoke instruction 
llvm-svn: 765
 2001-10-13 06:52:41 +00:00
Chris Lattner cfc2f446a6 Support indirect calls 
llvm-svn: 764
 2001-10-13 06:52:31 +00:00
Chris Lattner da55810666 Commit more code over to new cast style 
llvm-svn: 697
 2001-10-02 03:41:24 +00:00
Chris Lattner 3856934386 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 8f19112923 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 4b717c0edc Add support for new style casts 
llvm-svn: 694
 2001-10-01 16:18:37 +00:00
Chris Lattner ba1c1f2fb6 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 bb09a10929 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 b271be3185 ADCE is broken but at least we know why 
llvm-svn: 656
 2001-09-28 00:06:42 +00:00
Chris Lattner acfd27d502 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 d707ec62b6 Types and constants are wierd things in symbol tables now 
llvm-svn: 457
 2001-09-07 16:43:50 +00:00
Chris Lattner dae05dc937 * 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 e57fc205f4 Constant pool is dead 
llvm-svn: 455
 2001-09-07 16:42:51 +00:00
Chris Lattner 6d7bce9f3c Constants are now global unique objects 
llvm-svn: 454
 2001-09-07 16:42:26 +00:00
Chris Lattner 07e158de3c * Eliminate constant pool dependancies: 
* Eliminate DoRemoveUnusedConstants

llvm-svn: 453
 2001-09-07 16:42:08 +00:00
Chris Lattner 030772df99 * 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 b62b602fe2 Enable the elimination of method prototypes that are not referenced 
llvm-svn: 325
 2001-07-28 17:51:49 +00:00
Chris Lattner e2472bbf6c Moved inline/llvm/Tools/* to include/llvm/Support/* 
llvm-svn: 279
 2001-07-23 17:46:59 +00:00
Chris Lattner 3e37ec7c0a Support external methods 
llvm-svn: 200
 2001-07-15 21:43:45 +00:00
Chris Lattner 5451c9e977 Add knowledge about the struct form of the GetElementPtr instruction 
llvm-svn: 183
 2001-07-14 06:11:51 +00:00
Chris Lattner 5b1200bf8e Remove dependency on the structure of ValueHolder. 
llvm-svn: 182
 2001-07-14 06:11:26 +00:00
Chris Lattner d6c5a769ea 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 31feae8550 Implement checking for new instructions 
llvm-svn: 163
 2001-07-08 21:18:49 +00:00
Chris Lattner fb8ed0cf3a Use the CDG to mark branches alive on demand. 
llvm-svn: 159
 2001-07-08 18:38:36 +00:00
Chris Lattner a682182f64 Neg instruction removed. Cast instruction implemented. 
llvm-svn: 156
 2001-07-08 04:57:15 +00:00
Chris Lattner b1ca9cbceb 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 a073acb22d 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 29aae157f7 Add method to unify all exit nodes of a method 
llvm-svn: 143
 2001-07-06 16:58:36 +00:00
Chris Lattner 8024bde7c7 Update to include right file 
llvm-svn: 138
 2001-07-06 16:32:07 +00:00
Chris Lattner b28986ffc7 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 1960b3c6d2 Rename DoSparseConditionalConstantProp -> DoSCCP 
llvm-svn: 117
 2001-06-30 06:37:43 +00:00
Chris Lattner d42d492734 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 7ce8b17e60 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 10b250eb4d Added documentation. Constant fold terminators. 
llvm-svn: 106
 2001-06-29 23:56:23 +00:00
Chris Lattner 84f07396d3 * 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 e4abb60948 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 4cee8d8ffb 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 347389dae8 Add a new Sparse Conditional Constant Propogation pass 
llvm-svn: 95
 2001-06-27 23:38:11 +00:00
Chris Lattner 1a67fb8860 Misc cleanup 
llvm-svn: 91
 2001-06-27 23:36:09 +00:00
Chris Lattner f222bf33c3 * 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 dbdaaef7d5 Implement induction variable injection! 
llvm-svn: 75
 2001-06-25 07:32:19 +00:00
Chris Lattner c3a6f546de 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 f64a8936e5 #include a different header due to Intervals.h splitting up 
llvm-svn: 63
 2001-06-24 04:05:45 +00:00
Chris Lattner 4c4f178723 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 b20a15d334 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 778de94723 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 f86e38e452 Add capability to print a derived interval graph 
llvm-svn: 42
 2001-06-20 22:44:38 +00:00
Chris Lattner d286a997d3 Add a test case for interval code 
llvm-svn: 36
 2001-06-20 19:27:11 +00:00
Chris Lattner 5ba5f88c35 Updates to work with new cfg namespace 
llvm-svn: 29
 2001-06-13 19:55:22 +00:00
Chris Lattner 874ddadf72 Updates to support 
* Changes in PHI node structure

llvm-svn: 25
 2001-06-11 15:04:40 +00:00
Chris Lattner 7e0d6e05ac Updated to work with new CFG.h file. 
llvm-svn: 15
 2001-06-07 21:18:45 +00:00
Chris Lattner d821c2af37 Significant rework. DCE is still not done (see #ifdef'd out parts) 
but at least the stuff that is checked in, now works.

llvm-svn: 10
 2001-06-07 16:59:26 +00:00
Chris Lattner 2f7c963559 Initial revision 
llvm-svn: 2
 2001-06-06 20:29:01 +00:00