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876 Commits

Author SHA1 Message Date
Chris Lattner
7cdd2e0cb0 Converted SimpleStructMutation to take TargetData as a required pass. 
llvm-svn: 3932
 2002-09-26 00:17:21 +00:00
Chris Lattner
7ab2bba3d3 Change LowerAllocations pass to 'require' TargetData instead of it being 
passed in.

llvm-svn: 3929
 2002-09-25 23:47:47 +00:00
Chris Lattner
2cf19d980a - Fix bug: Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
llvm-svn: 3917
 2002-09-24 21:19:41 +00:00
Chris Lattner
7fafece8e0 Eliminate extraneous #include 
llvm-svn: 3916
 2002-09-24 21:18:40 +00:00
Chris Lattner
54cf78c786 Fix bug: SimplifyCFG/2002-09-24-PHIAssertion.ll 
llvm-svn: 3913
 2002-09-24 16:09:17 +00:00
Chris Lattner
a4f47fb77e - Do not expose Critical Edge breaking mechanics outside the BCE pass, thus 
removing it from Transforms/Local.h and from Transforms/Utils/*

llvm-svn: 3911
 2002-09-24 15:52:01 +00:00
Chris Lattner
25ba5ac7ce - Do not expose Critical Edge breaking mechanics outside the BCE pass, thus 
removing it from Transforms/Local.h and from Transforms/Utils/*

llvm-svn: 3910
 2002-09-24 15:51:56 +00:00
Chris Lattner
1014aae962 Correlated Exprs pass now requires BCE pass instead of doing it manually 
llvm-svn: 3908
 2002-09-24 15:43:56 +00:00
Chris Lattner
49588769e0 - Expose passinfo from BreakCriticalEdges pass so that it may be "Required" 
by other passes.  Make BCE pass be in anonymous namespace now.

llvm-svn: 3907
 2002-09-24 15:43:12 +00:00
Chris Lattner
4e11d9e5de Minor cleanups 
llvm-svn: 3904
 2002-09-24 00:09:26 +00:00
Chris Lattner
e62cdff96c Add new BreakCriticalEdges pass 
llvm-svn: 3903
 2002-09-24 00:08:39 +00:00
Chris Lattner
b6c408778a Optimize away cases like: 
%cast109 = cast uint %cast212 to short          ; <short> [#uses=1]
        %cast214 = cast short %cast109 to uint          ; <uint> [#uses=1]
        %cast215 = cast uint %cast214 to short          ; <short> [#uses=1]

llvm-svn: 3897
 2002-09-23 23:39:43 +00:00
Chris Lattner
a4184f9ab6 Fix: ConstantMerge/2002-09-23-CPR-Update.ll 
Basically, this bug boiled down to calling replaceUsesOfWith on a constant,
which changed it's shape in an illegal way.  This pass now goes through all
of the trouble neccesary to do the replacement on constants.

llvm-svn: 3895
 2002-09-23 23:00:46 +00:00
Chris Lattner
2a53929c5d * Fix bug: CorrelatedExprs/2002-09-23-PHIUpdateBug.ll 
* Make sure "Changed" is updated correctly

llvm-svn: 3891
 2002-09-23 20:06:22 +00:00
Chris Lattner
aecb825629 Insert resolved constants into the global map so they are reused correctly. 
This bug was exposed linking the SPEC benchmark suite.

llvm-svn: 3888
 2002-09-23 18:14:15 +00:00
Chris Lattner
5c6d487ee2 Don't insert a PHI node to merge "returns" from an inlined function if there 
is only a single return from the function!

llvm-svn: 3878
 2002-09-22 18:41:25 +00:00
Anand Shukla
b959e8559e Added checking threshold 
llvm-svn: 3864
 2002-09-20 16:44:35 +00:00
Anand Shukla
cf6e76fbff split retracing into a separate file 
llvm-svn: 3809
 2002-09-18 03:55:26 +00:00
Misha Brukman
e093f5cb9b Removed unnecessary #includes. 
llvm-svn: 3802
 2002-09-18 02:07:57 +00:00
Misha Brukman
6a2dc6b0ba Fixed typo. 
llvm-svn: 3801
 2002-09-18 00:42:45 +00:00
Chris Lattner
4396aee3a2 There is a #define in some header that conflicts with INFINITY, rename it. 
llvm-svn: 3797
 2002-09-17 23:46:33 +00:00
Chris Lattner
5ccb21f41d Fix bug: test/Regression/Transforms/InstCombine/2002-09-17-GetElementPtrCrash.ll 
Thanks to Casey for finding it!

llvm-svn: 3783
 2002-09-17 21:05:42 +00:00
Chris Lattner
99d6a46698 Fix FunctionInlining pass assertion failure: 
ilist:104: failed assertion `Traits::getNext(NodePtr) != 0 && "Dereferencing end()!"'

llvm-svn: 3768
 2002-09-16 22:30:20 +00:00
Chris Lattner
5704e40ce0 Fix: test/Regression/LLC/badidx.c problem 
llvm-svn: 3763
 2002-09-16 18:32:33 +00:00
Vikram S. Adve
4bcec53ed7 Extract most of the transformation into an externally accessible 
function -- DecomposeArrayRef(GetElementPtrInst* GEP) -- that can
be invoked on a single instruction at a time.

llvm-svn: 3755
 2002-09-16 16:40:07 +00:00
Anand Shukla
86e49b7621 Incorporated changes in alloca and getElementPointer instruction 
llvm-svn: 3733
 2002-09-16 05:26:51 +00:00
Anand Shukla
0906acb26d Incorporated changes in alloca instruction 
llvm-svn: 3732
 2002-09-16 05:24:49 +00:00
Chris Lattner
56d9dfd0e0 Fix bug I introduced 
llvm-svn: 3719
 2002-09-14 19:33:16 +00:00
Misha Brukman
2e598f0092 Function.h is unnecessary when Module.h is included. 
llvm-svn: 3716
 2002-09-14 03:04:02 +00:00
Misha Brukman
dbe90c56ec Following Chris's advice, I'm pruning some unnecessary .h includes that I'm 
noticing. Since Module includes Function, and eventually, BasicBlock and
GlobalVariable, the last three are unnecessary to be included directly.

llvm-svn: 3713
 2002-09-14 02:06:53 +00:00
Chris Lattner
547be87c13 Change the MallocInst & AllocaInst ctors to take the allocated type, not the 
pointer type returned.

llvm-svn: 3711
 2002-09-13 22:28:50 +00:00
Chris Lattner
f820cab2ad Change the MallocInst & AllocaInst ctors to take the allocated type, not the 
pointer type returned.

llvm-svn: 3710
 2002-09-13 22:28:45 +00:00
Chris Lattner
d6fed79df6 Fix bug I introduced with one of my previous changes. 
Thanks fly out to Nick for noticing it!  :)

llvm-svn: 3691
 2002-09-12 19:00:43 +00:00
Chris Lattner
fb017cb38c - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3682
 2002-09-11 01:21:33 +00:00
Chris Lattner
18e3c4ff50 - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3681
 2002-09-11 01:21:29 +00:00
Chris Lattner
5f4b79edaf Fix the last of the silly bugs I just introduced. :( 
llvm-svn: 3674
 2002-09-10 23:46:10 +00:00
Chris Lattner
62bd3a248c Fix bugs in previous checkins 
llvm-svn: 3673
 2002-09-10 23:31:28 +00:00
Chris Lattner
0b81131afc Fix bug in previous checkin 
llvm-svn: 3672
 2002-09-10 23:31:12 +00:00
Chris Lattner
5143d4a3b3 Add cannonicalization of shl X, 1 -> add X, X 
llvm-svn: 3671
 2002-09-10 23:04:09 +00:00
Chris Lattner
f2fa52fec2 Fix minor problems in previous checkin 
llvm-svn: 3669
 2002-09-10 22:52:51 +00:00
Chris Lattner
3b3e26bb63 Fix minor problems in previous checkin 
llvm-svn: 3668
 2002-09-10 22:52:49 +00:00
Chris Lattner
f2e4e61769 Clean up code due to auto-insert constructors 
llvm-svn: 3666
 2002-09-10 22:38:49 +00:00
Chris Lattner
37c3a1d80c Clean up code due to auto-insert constructors 
llvm-svn: 3665
 2002-09-10 22:38:47 +00:00
Chris Lattner
38203aa15a Clean up code 
llvm-svn: 3664
 2002-09-10 22:38:06 +00:00
Chris Lattner
acbd992f9d Fix bug: test/Regression/Transforms/LevelRaise/2002-09-10-PointerAdds.ll 
llvm-svn: 3658
 2002-09-10 19:42:53 +00:00
Chris Lattner
da9702a8a1 Simplify code (somtimes dramatically), by using the new "auto-insert" feature 
of instruction constructors.

llvm-svn: 3656
 2002-09-10 17:04:02 +00:00
Chris Lattner
5758cf6d77 Simplify code (somtimes dramatically), by using the new "auto-insert" feature 
of instruction constructors.

llvm-svn: 3655
 2002-09-10 17:03:06 +00:00
Chris Lattner
7787814c22 * Clean up code a little bit 
* Fix bug: test/Regression/Transforms/IndVarsSimplify/2002-09-09-PointerIndVar.ll

llvm-svn: 3644
 2002-09-10 05:24:05 +00:00
Chris Lattner
4f5abce7f6 Hack unneccesary now that shifts of pointers are no longer legal! 
llvm-svn: 3640
 2002-09-10 03:50:54 +00:00
Chris Lattner
f6a9e54dda Disallow creation of pointer typed shift instructions 
llvm-svn: 3637
 2002-09-09 20:25:21 +00:00
Chris Lattner
4b8ce3aed2 Factor silly code duplication out 
llvm-svn: 3627
 2002-09-08 21:47:54 +00:00
Chris Lattner
c1de581f8e Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.ll 
llvm-svn: 3626
 2002-09-08 21:39:07 +00:00
Chris Lattner
c30029172a Minor simplification 
llvm-svn: 3619
 2002-09-08 18:55:04 +00:00
Chris Lattner
bd03f18e04 Initial checkin of Correlated Expression Elimination Pass 
llvm-svn: 3599
 2002-09-06 18:41:55 +00:00
Chris Lattner
bf38fcf5ee Fix file header to be accurate, instead of something I just copied and pasted. 
llvm-svn: 3591
 2002-09-06 03:59:56 +00:00
Chris Lattner
78a3ebaa18 Fix bug with critical edge splitting code where it wouldn't update PHI nodes 
in the old destination block to indicate that the value flows from the new
edge splitting block, not from the original multi-successor block.

llvm-svn: 3590
 2002-09-06 03:51:45 +00:00
Chris Lattner
c3c754062f Check in the implementation of critical edge detection and splitting 
llvm-svn: 3588
 2002-09-06 02:35:34 +00:00
Chris Lattner
3ce5b343c5 - Renamed Type::isIntegral() to Type::isInteger() 
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3574
 2002-09-03 01:08:28 +00:00
Chris Lattner
904f214a13 - Renamed Type::isIntegral() to Type::isInteger() 
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3573
 2002-09-03 01:07:35 +00:00
Chris Lattner
cd49f0ec5d Add constant prop & DIE to InstCombine, so it cleans up after itself 
llvm-svn: 3568
 2002-09-02 04:59:56 +00:00
Chris Lattner
bb8f1a072b - Implement SCCP of getelementptr instructions 
- Implement SCCP of globals into ConstantExprs hopefully opening new
   opportunities for more SCCP.

llvm-svn: 3555
 2002-08-30 23:39:00 +00:00
Chris Lattner
838248b35a - Eliminate the last traces of the 'analysis' namespace 
llvm-svn: 3550
 2002-08-30 22:53:53 +00:00
Chris Lattner
a146c9e769 Really minor cleanups 
llvm-svn: 3549
 2002-08-30 22:53:30 +00:00
Chris Lattner
b0cbcfd5e4 - GCSE now no longer counts instructions not removed (due to no common 
dominator as being removed)
  - GCSE now uses new Value #'ing interface, instead of dealing with AA itself
  - GCSE worklist implementation much simpler, class cleaned up.

llvm-svn: 3533
 2002-08-30 20:22:29 +00:00
Chris Lattner
66b1127636 - instcombine demorgan's law: and (not A), (not B) == not (or A, B) 
llvm-svn: 3495
 2002-08-23 18:32:43 +00:00
Chris Lattner
9f18db8156 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3488
 2002-08-22 23:37:24 +00:00
Chris Lattner
20b85d96e4 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3487
 2002-08-22 23:37:20 +00:00
Chris Lattner
969c616d51 Load & StoreInst no longer derive from MemAccessInst, so we don't have 
to handle indexing anymore

llvm-svn: 3485
 2002-08-22 22:49:05 +00:00
Chris Lattner
65920fff34 *** empty log message *** 
llvm-svn: 3483
 2002-08-22 22:48:32 +00:00
Chris Lattner
8b8d72c1f2 Add capability of using pointer analysis to LICM 
llvm-svn: 3478
 2002-08-22 21:39:55 +00:00
Chris Lattner
5addf774a3 Remove long obsolete comments 
llvm-svn: 3476
 2002-08-22 21:25:54 +00:00
Chris Lattner
18826b07fe Instcombine PHI's of the form %PN = phi PN, X into X and 
%PN = phi PN, PN, PN into 0 (because the phi must not be reachable)

llvm-svn: 3470
 2002-08-22 20:22:01 +00:00
Chris Lattner
5b94b874d6 Convert GCSE pass to use new alias analysis infrastructure 
llvm-svn: 3463
 2002-08-22 18:24:48 +00:00
Chris Lattner
59e4067423 Do not generate load/store instructions with indexing. 
llvm-svn: 3461
 2002-08-22 16:41:31 +00:00
Chris Lattner
c4bd846e84 - Split Dominators.h into Dominators.h & PostDominators.h 
llvm-svn: 3432
 2002-08-21 23:43:50 +00:00
Chris Lattner
9c09c6a306 Do not generate loads/stores with indexing 
llvm-svn: 3422
 2002-08-21 22:11:33 +00:00
Chris Lattner
c3bf7eea0e Remove extraneous #includes 
llvm-svn: 3421
 2002-08-21 22:11:14 +00:00
Chris Lattner
cddef868de Do not create load/stores with indexes 
llvm-svn: 3420
 2002-08-21 22:10:52 +00:00
Chris Lattner
a154f5fa97 Remove an optimization that isn't. 
llvm-svn: 3419
 2002-08-21 22:10:06 +00:00
Chris Lattner
6c83ee57c1 - Do not expose ::ID from any of the analyses anymore. 
llvm-svn: 3417
 2002-08-21 17:09:49 +00:00
Chris Lattner
af538ea2c9 fixed bug: test/Regression/Linker/2002-08-20-ConstantExpr.ll 
llvm-svn: 3412
 2002-08-20 19:35:11 +00:00
Chris Lattner
ad92b604b5 - instcombine (~(a < b)) into (a >= b) 
llvm-svn: 3406
 2002-08-20 18:24:26 +00:00
Chris Lattner
22116975ce - implemented instcombine of phi (X, X, X) -> X 
llvm-svn: 3397
 2002-08-20 15:35:35 +00:00
Chris Lattner
289ad0e1fd - Made GlobalDCE worklist driven, making it more successful. Now can handle 
cases like: test/Regression/Transforms/GlobalDCE/2002-08-17-WorkListTest.ll

llvm-svn: 3381
 2002-08-18 01:28:30 +00:00
Chris Lattner
04d2780d12 Promote getelementptr instructions to constexprs if we can. 
llvm-svn: 3368
 2002-08-17 22:21:59 +00:00
Chris Lattner
caaca8d4c9 Handle more cases of cast-of-cast in more general forms. 
llvm-svn: 3347
 2002-08-15 16:15:25 +00:00
Chris Lattner
83f92a7237 Implement capability to fold this: 
uint %test4(int %A, int %B) {
        %COND = setlt int %A, %B                ; <bool> [#uses=1]
        %result = cast bool %COND to uint               ; <uint> [#uses=1]
        ret uint %result
}
into a single cast instruction.

llvm-svn: 3339
 2002-08-14 23:21:10 +00:00
Chris Lattner
be85bafab2 Avoid creating 'load X, 0' instead of just 'load X' 
This _trivial_ change causes GCSE and LICM to be much more effective at
hoisting loads.  Before it would not be able to eliminate 'load X' if there
was just a dominating 'load X, 0' because the expressions were not identical.

llvm-svn: 3337
 2002-08-14 22:11:52 +00:00
Chris Lattner
80b897953e Avoid inserting an entry block unless we need it 
llvm-svn: 3336
 2002-08-14 21:35:02 +00:00
Chris Lattner
6a9d88347a Remove support for Not ConstantExpr. This simplifies the unary case to only 
have to support the cast instruction, so the function is renamed to getCast.

llvm-svn: 3328
 2002-08-14 18:24:09 +00:00
Chris Lattner
760f32d641 Fix bug introduced in last checkin due to CastInst not being visible 
llvm-svn: 3327
 2002-08-14 18:22:19 +00:00
Chris Lattner
980bf4b44d Remove support for NOT instruction 
llvm-svn: 3323
 2002-08-14 18:18:02 +00:00
Chris Lattner
34a9a81756 Remove extra #includes 
llvm-svn: 3322
 2002-08-14 18:17:32 +00:00
Chris Lattner
c264beb7c5 Remove support for unary operators 
llvm-svn: 3318
 2002-08-14 17:53:45 +00:00
Chris Lattner
890adeb7a2 - Fix InstCombine pass to not generate or process NOT instructions 
- Fixed testcases to not use them either.

llvm-svn: 3315
 2002-08-14 17:51:49 +00:00
Chris Lattner
c8183d92e3 Remove support for NOT instruction 
llvm-svn: 3313
 2002-08-14 17:45:39 +00:00
Chris Lattner
b6a04772b5 - Rename ConstantGenericIntegral -> ConstantIntegral 
llvm-svn: 3300
 2002-08-13 17:50:24 +00:00
Chris Lattner
a6ba1b74ac * Factor a bunch of code by using ReplaceInstUsesWith 
* Move isMaxValue, isMinValue, isAllOnesValue to Constants.h

llvm-svn: 3290
 2002-08-12 21:17:25 +00:00
Chris Lattner
0a51808266 New functionality for instcombine: 
* New ReplaceInstUsesWith function to factor out tons of common code
     This needs to be used more in the future still, but it's a good start
   * New InsertNewInstBefore to allow multi-instruction replacements
   * Change getMaxValue functions to isAllOnesValue function, which doesn't
     have to CREATE/lookup a new constant.  Also the name is accurate
   * Add new isMaxValue, isMinValue, isMaxValueMinusOne, isMinValuePlusOne
     functions:  This should be moved to Constant* classes eventually
   * Implement xor X, ALLONES -> not X
   * Fold ALL setcc's of booleans away
   * Handle various SetCC's for integers against values at the end of their
     ranges, possibly off by one.  This implements the setcc-strength-reduce.ll
     testcase.

llvm-svn: 3286
 2002-08-09 23:47:40 +00:00
Chris Lattner
62be99967a Initial checkin of the "Hello World" Pass. 
llvm-svn: 3266
 2002-08-08 20:10:38 +00:00
Chris Lattner
a21e315db4 - Cleaned up the interface to AnalysisUsage to take analysis class names 
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3265
 2002-08-08 19:01:30 +00:00
Chris Lattner
91d4742562 - Cleaned up the interface to AnalysisUsage to take analysis class names 
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3264
 2002-08-08 19:01:28 +00:00
Chris Lattner
62fb7f0304 Remove extraneous #includes 
llvm-svn: 3262
 2002-08-08 19:00:34 +00:00
Vikram S. Adve
bbe47f2e7d Eliminate cast instructions: use only GEPs in decomposed sequence. 
Don't decompose if there are 2 indices with 0 as first index.
Compute Changed flag correctly in runOnBasicBlock().

llvm-svn: 3233
 2002-08-03 13:21:15 +00:00
Chris Lattner
c840f0ec2a Fix bug: test/Regression/Transforms/InstCombine/2002-08-02-CastTest.ll 
Implement feature: Cast's can now be converted to bitwise AND expressions.

llvm-svn: 3225
 2002-08-02 20:00:25 +00:00
Chris Lattner
5d9be21256 * Cleanups of instcombine 
- Reenable gep (gep x) -> x
   - Make instcombine do dead instruction elimination where it's really
     easy.  Now visitors don't have to ensure they aren't not processing
     dead instructions.

llvm-svn: 3222
 2002-08-02 19:29:35 +00:00
Chris Lattner
b55222222e Fix bug: test/Regression/Transforms/GCSE/2002-05-21-NoSharedDominator.ll 
llvm-svn: 3215
 2002-08-02 18:06:01 +00:00
Chris Lattner
b630b06f0d Remove unneccesary #inlcude 
llvm-svn: 3200
 2002-08-01 20:01:02 +00:00
Chris Lattner
b1792282eb Implement the other half of a feature advertised by OperandConvertableToType. 
This fixes bug: test/Regression/Transforms/LevelRaise/2002-07-31-AssertionFailure.ll

llvm-svn: 3193
 2002-07-31 22:31:34 +00:00
Chris Lattner
f8ca791c68 * Indent class into anonymous namespace, filling up the diff with garbage 
* Internalize global variables with initializers
* Add new stat to track global variable internalization
* Only count functions that were not internal before in internalized function
  count

llvm-svn: 3163
 2002-07-30 19:48:44 +00:00
Chris Lattner
12b9a2a7e6 Cleanup ConstantExpr handling: 
* Correctly delete TypeHandles in AsmParser.  In addition to not leaking
   memory, this prevents a bug that could have occurred when a type got
   resolved that the constexpr was using
 * Check for errors in the AsmParser instead of hitting assertion failures
   deep in the code
 * Simplify the interface to the ConstantExpr class, removing unneccesary
   parameters to the ::get* methods.
 * Rename the 'getelementptr' version of ConstantExpr::get to
   ConstantExpr::getGetElementPtr

llvm-svn: 3160
 2002-07-30 18:54:22 +00:00
Chris Lattner
902619d2f1 Remove FIXME's that aren't really needed after all. 
llvm-svn: 3158
 2002-07-30 16:38:54 +00:00
Chris Lattner
4d05134df0 Fix bug with last patch which would occur when a call returned void and we 
attempted to assign it a name.

llvm-svn: 3142
 2002-07-30 02:42:49 +00:00
Chris Lattner
1980b35509 * Make sure the resolved function call instructions get the name from the 
old call instruction
* Implement conversion of return values for calls.  This fixes bug:
   test/Regression/Transforms/FunctionResolve/retmismatch3.ll

llvm-svn: 3140
 2002-07-30 00:50:49 +00:00
Chris Lattner
b9052f081a * Fix bug: test/Regression/Transforms/ADCE/2002-07-17-AssertionFailure.ll 
which was caused by us not running the "drop references of dead
  instructions" code when there were no basic blocks that were dead.

  We still don't want to do some of the stuff we do if there are dead
  basic blocks, but we DO want to drop references of dead instructions,
  so we factor the common code out to a new method.

llvm-svn: 3137
 2002-07-30 00:22:34 +00:00
Chris Lattner
72b8a38a26 Add code to ensure that no PHI nodes are left laying around with their 
arguments dropped.  This fixes bug:
   test/Regression/Transforms/ADCE/2002-07-17-PHIAssertion.ll

llvm-svn: 3134
 2002-07-29 23:40:46 +00:00
Chris Lattner
078c1024c0 Implement a new RemoveSuccessor function 
llvm-svn: 3131
 2002-07-29 22:32:08 +00:00
Chris Lattner
5aef91b716 Fix bug: test/Regression/Transforms/ADCE/2002-07-29-Segfault.ll 
llvm-svn: 3129
 2002-07-29 22:31:39 +00:00
Chris Lattner
2f7ce877c5 Allow folding of basic blocks that have PHI nodes in them, fixing "bug": 
test/Regression/Transforms/SimplifyCFG/2002-06-24-PHINode.ll

llvm-svn: 3128
 2002-07-29 21:26:30 +00:00
Chris Lattner
ec2780457d * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.

llvm-svn: 3116
 2002-07-27 01:12:17 +00:00
Chris Lattner
3f47f1065b * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.

llvm-svn: 3115
 2002-07-27 01:12:15 +00:00
Chris Lattner
7a9eb848cd * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3113
 2002-07-26 21:12:46 +00:00
Chris Lattner
b934722f1b * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3112
 2002-07-26 21:12:44 +00:00
Chris Lattner
ec1a192b16 *** empty log message *** 
llvm-svn: 3105
 2002-07-26 18:40:14 +00:00
Chris Lattner
05fe67c0d2 *** empty log message *** 
llvm-svn: 3075
 2002-07-25 06:17:51 +00:00
Chris Lattner
0702eb18e6 *** empty log message *** 
llvm-svn: 3072
 2002-07-24 22:40:39 +00:00
Chris Lattner
4a9e674077 Eliminate several include/llvm/Transforms/IPO/*.h files, moving their contents into IPO.h 
llvm-svn: 3043
 2002-07-24 17:12:05 +00:00
Chris Lattner
921e366a5c Merge ChangeAllocations into scalar.h 
llvm-svn: 3038
 2002-07-23 22:04:17 +00:00
Chris Lattner
176a67ce61 Rename header 
llvm-svn: 3037
 2002-07-23 22:04:02 +00:00
Chris Lattner
46077f4e0f Cleanup and simplify code 
llvm-svn: 3036
 2002-07-23 22:03:41 +00:00
Chris Lattner
ac78173ee0 Incorporate ConstantMerge.h into IPO.h 
llvm-svn: 3035
 2002-07-23 19:57:40 +00:00
Chris Lattner
38adabd0a1 Rename LevelChange.h to RaisePointerReferences.h 
llvm-svn: 3034
 2002-07-23 19:57:08 +00:00
Chris Lattner
c482880f9e *** empty log message *** 
llvm-svn: 3016
 2002-07-23 18:06:35 +00:00
Chris Lattner
606421d005 * Remove getPassName implementation 
* Register all Passes

llvm-svn: 3015
 2002-07-23 18:06:30 +00:00
Chris Lattner
17d972ce72 * Cleanup the pass a bit more, making it more object oriented. 
* Split the two behaviors of the InsertTraceCode class into two subclasses
* Register Passes

llvm-svn: 3014
 2002-07-23 18:04:15 +00:00
Chris Lattner
670d7d06fe * Break the two different behaviors of SimpleStructMutation into two subclasses 
* Register the passes

llvm-svn: 3013
 2002-07-23 18:03:11 +00:00
Chris Lattner
b059058c80 * Make the ctor take a TargetData even though it's not using it yet 
* Register the pass

llvm-svn: 3012
 2002-07-23 18:02:23 +00:00
Chris Lattner
bdb978fa79 * Remove lots of dead stuff 
* Register Pass

llvm-svn: 3011
 2002-07-23 18:01:39 +00:00
Chris Lattner
24bcbdd155 *** empty log message *** 
llvm-svn: 3002
 2002-07-23 17:52:38 +00:00
Chris Lattner
4d05cb01b1 Hide extra argument 
llvm-svn: 2986
 2002-07-22 02:17:27 +00:00
Chris Lattner
99ad379582 *** empty log message *** 
llvm-svn: 2985
 2002-07-22 02:10:13 +00:00
Anand Shukla
60f4c16199 comeented out debug printing 
llvm-svn: 2980
 2002-07-21 09:41:18 +00:00
Anand Shukla
4c822342bf minor corrections 
llvm-svn: 2971
 2002-07-18 20:56:47 +00:00
Chris Lattner
c459d57fe3 Seperate stats for DCE'd functions and vars 
llvm-svn: 2961
 2002-07-18 06:40:04 +00:00
Chris Lattner
13b8b7c8fe *** empty log message *** 
llvm-svn: 2959
 2002-07-18 04:43:20 +00:00
Chris Lattner
1abd637044 Only functions with external linkage can be resolved to function declarations. 
This change fixes programs that have multiple functions named the same thing,
where are least one of them is static/internal.

llvm-svn: 2954
 2002-07-18 03:01:24 +00:00
Chris Lattner
d703fa0041 * Rewrite loop to be slightly more efficient (arguably) 
* Fix a MAJOR thinko that was causing bad links to happen on Spec

llvm-svn: 2953
 2002-07-18 02:31:03 +00:00
Chris Lattner
3710b0d6d1 * Correctly get prototype for void*malloc(size_t) 
llvm-svn: 2951
 2002-07-18 00:18:01 +00:00
Chris Lattner
b121676038 Implement linking of ConstExprs 
llvm-svn: 2946
 2002-07-18 00:13:08 +00:00
Chris Lattner
d842f9ff2d Anand forgot to check in the makefile corresponding to his previous change 
which eliminated the EmitFunctions directory

llvm-svn: 2937
 2002-07-17 17:13:01 +00:00
Chris Lattner
20c6eeb1e2 * Remove dead code from ExprTypeConvert.cpp 
- I->use_empty() can never be true because of the IHolder's
* Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-SourceAndDestCrash.ll
   - Add a new NewCasts member to VMC to keep track of casts that have been
     created and to ensure there is always a reference to the cast.
   - Extend ValueHandle a bit so it can be used in an STL container
   - Make sure we destroy the ValueMapCache before verifying the function
     in LevelRaise.cpp

llvm-svn: 2936
 2002-07-17 17:11:33 +00:00
Chris Lattner
85a9f9c4b3 * Add a bunch of debugging features to LevelRaise 
- Verify the function every time it is exprconverted if DEBUG is on
  - Provide a way to start exprconversion AT a specific instruction.

llvm-svn: 2934
 2002-07-16 23:49:24 +00:00
Chris Lattner
ee9a9d8017 Avoid !sized assertion failure if Ty is not a sized type 
llvm-svn: 2933
 2002-07-16 22:29:37 +00:00
Chris Lattner
a221573dba Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash2.ll 
llvm-svn: 2932
 2002-07-16 21:41:31 +00:00
Anand Shukla
4bb7a17266 Moved over EmitFunctions to this library 
llvm-svn: 2928
 2002-07-16 18:58:08 +00:00
Anand Shukla
4da4e0ba0a removed this directory 
llvm-svn: 2927
 2002-07-16 18:56:29 +00:00
Anand Shukla
03970aa8bf Moved EmitFunctions.cpp up to instrumentation directory 
llvm-svn: 2926
 2002-07-16 18:55:55 +00:00
Chris Lattner
22958b2e75 Bugfix to previous checkin 
llvm-svn: 2924
 2002-07-16 18:12:55 +00:00
Chris Lattner
0be1cc0f00 * Cleanup pass 
* The global variable cannot be internal or else we cannot use it!
* Always add a function to the table, even if it only has a single basic
  block.

llvm-svn: 2921
 2002-07-16 17:42:54 +00:00
Chris Lattner
43cfac7e68 * Add assertion to ExprTypeConvert to detect error earlier than without it 
* Fix bug in LevelRaise.cpp, correcting this problem:
    test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash.ll

llvm-svn: 2920
 2002-07-16 17:33:13 +00:00
Anand Shukla
a10f139779 Added EmitFunctions directory 
llvm-svn: 2883
 2002-07-12 20:12:07 +00:00
Anand Shukla
d4dae682bc Initial makefile 
llvm-svn: 2882
 2002-07-12 20:11:24 +00:00
Anand Shukla
edba9ad8a9 Initial version: adds a function table to output code 
llvm-svn: 2881
 2002-07-12 20:10:50 +00:00
Chris Lattner
83577a047e Disable folding g-e-p instructions into loads and stores. 
llvm-svn: 2870
 2002-07-10 22:37:17 +00:00
Chris Lattner
a6842aa353 Disable pool allocation stuff until data structure analysis is sorted back out 
llvm-svn: 2869
 2002-07-10 22:36:47 +00:00
Vikram S. Adve
c98bc8cd5e Fix iteration and InsertPos bugs introduced when Chris changed over to ilist. 
llvm-svn: 2840
 2002-07-08 23:37:07 +00:00
Anand Shukla
43bbde3f76 changes BBsorting and oredering 
llvm-svn: 2817
 2002-07-08 19:37:06 +00:00
Anand Shukla
9d38b4b511 small corrections 
llvm-svn: 2816
 2002-07-08 19:36:39 +00:00
Anand Shukla
a5c08b7973 changed function numbering 
llvm-svn: 2815
 2002-07-08 19:36:01 +00:00
Chris Lattner
a590093513 *** empty log message *** 
llvm-svn: 2813
 2002-06-30 16:25:25 +00:00
Chris Lattner
63f4011a0c Clean up anands patch 
llvm-svn: 2812
 2002-06-30 16:25:21 +00:00
Anand Shukla
3ab9ffd5b1 changes to make it compatible with 64bit gcc 
llvm-svn: 2795
 2002-06-25 21:18:19 +00:00
Anand Shukla
25f890e009 additions and bug fixes 
llvm-svn: 2794
 2002-06-25 21:14:58 +00:00
Anand Shukla
0908af95f6 added include<iostream> for cerr 
llvm-svn: 2793
 2002-06-25 21:12:25 +00:00
Anand Shukla
85065832f1 changes to make it compatible with 64bit gcc 
llvm-svn: 2792
 2002-06-25 21:07:58 +00:00
Anand Shukla
ee7ed50bb4 changes to make it compatible with 64bit gcc 
llvm-svn: 2791
 2002-06-25 20:55:50 +00:00
Chris Lattner
dfd421a7df MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner
d7cbd7d5d2 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2778
 2002-06-25 16:13:21 +00:00
Chris Lattner
cee706572b *** empty log message *** 
llvm-svn: 2777
 2002-06-25 16:12:52 +00:00
Chris Lattner
8e1476c302 Remove DynamicConstantMerge pass, because it did not fit in with the Pass 
system correctly.

llvm-svn: 2772
 2002-06-25 15:55:29 +00:00
Chris Lattner
ef6daeb534 Remove "fixers" for problems in GCC generated code that cannot be generated 
anymore.

llvm-svn: 2771
 2002-06-25 15:55:03 +00:00
Anand Shukla
92dcd43312 Relocating Graph.h 
llvm-svn: 2770
 2002-06-25 14:28:55 +00:00
Chris Lattner
779f966ce5 Avoid deleting individual instructions until AFTER dead blocks have dropped 
their references.  This fixes bug:
    test/Regression/Transforms/ADCE/2002-05-28-Crash*.ll

llvm-svn: 2753
 2002-05-28 21:38:16 +00:00
Chris Lattner
b95dde758a Simplify the interface to local DCE and Constant prop 
llvm-svn: 2749
 2002-05-26 20:18:18 +00:00
Chris Lattner
3611a1e91c Do not remove type names that contain a . 
llvm-svn: 2747
 2002-05-26 20:17:35 +00:00
Chris Lattner
d98e784be4 Fix "unimplemented features": 
test/Regression/Transforms/FunctionResolve/retmismatch[12].ll

This makes it much more useful for running benchmarks that are missing
prototypes for some functions.

llvm-svn: 2745
 2002-05-24 21:33:26 +00:00
Chris Lattner
5dc1524174 Split the FunctionResolution pass out of CleanGCCOutput.cpp. 
llvm-svn: 2742
 2002-05-24 20:42:13 +00:00
Chris Lattner
4c766269b7 Fix comments to reflect reality 
llvm-svn: 2741
 2002-05-24 20:41:51 +00:00
Chris Lattner
e69803b06f Support programs that do not #include <malloc.h> or give a full prototype 
for malloc and free.  Lots of crufty benchmarks are using stuff like:
char *malloc();
void free();

to forward declare malloc and free.  Now we recognize and raise these forms

llvm-svn: 2740
 2002-05-24 20:29:18 +00:00
Chris Lattner
9dde5c9df7 Fold add X, 0 for floating point types as well 
llvm-svn: 2734
 2002-05-23 17:11:38 +00:00
Chris Lattner
76bf940554 Convert code to use the DEBUG macro so that debug code can simply be 
enabled with the -debug command line option.

llvm-svn: 2721
 2002-05-22 21:56:32 +00:00
Chris Lattner
1f66858791 Fix and implement ADCE to finally work! 
llvm-svn: 2720
 2002-05-22 21:32:16 +00:00
Chris Lattner
d406cb7c9d Convert transforms over to standardize debugging output on -debug option 
llvm-svn: 2714
 2002-05-22 17:27:12 +00:00
Chris Lattner
1f2723a2c9 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
245c8615e4 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
e7ce749d63 Add implementation of SimplifyCFG 
llvm-svn: 2701
 2002-05-21 20:50:24 +00:00
Chris Lattner
bb7416fa7f New CFG Simplification pass: removed from the old DCE pass 
llvm-svn: 2700
 2002-05-21 20:49:37 +00:00
Chris Lattner
4b29ff417d Simplify interface to ConstantFoldTerminator 
llvm-svn: 2697
 2002-05-21 20:04:50 +00:00
Chris Lattner
c7e2f5bbd7 * 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
c3d944c4f7 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
c0db1765f4 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
a524df6d1d * 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
fc21b26332 * 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
8106c7a841 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
llvm-svn: 2627
 2002-05-14 16:44:07 +00:00
Chris Lattner
0ee0c26f4e 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
f98fefc1ea 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
b7688286c1 Implement elimination of loads 
llvm-svn: 2620
 2002-05-14 05:02:40 +00:00
Chris Lattner
fc14cb90a2 Trivial cleanups 
llvm-svn: 2617
 2002-05-13 22:04:46 +00:00
Chris Lattner
1b769f2a94 Initial checkin of LICM pass 
llvm-svn: 2615
 2002-05-10 22:44:58 +00:00
Chris Lattner
adba963886 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
1bf8912c74 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
0671b3db5d * 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
2d91be1ab7 Initial checkin of the PiNodeInsertion pass 
llvm-svn: 2593
 2002-05-10 05:41:34 +00:00
Chris Lattner
cd326f096f Handle setcc <global*>, 0 instructions, Global pointers are never null! 
llvm-svn: 2582
 2002-05-09 20:11:54 +00:00
Chris Lattner
9de1aeb91c 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
172488eb68 Add ability to transform (x - (y - z)) into (x + (z - y)) 
llvm-svn: 2566
 2002-05-09 01:29:19 +00:00
Chris Lattner
34d5891f0a * Combine: A-(-B) -> A + B 
* Bugfix:  A + -B and -A + B

llvm-svn: 2561
 2002-05-08 22:46:53 +00:00
Chris Lattner
c38d2de2b5 Initial checkin of expression reassociation pass 
llvm-svn: 2559
 2002-05-08 22:19:27 +00:00
Chris Lattner
ce6632281f Give the unified exit node a name 
llvm-svn: 2550
 2002-05-07 22:14:45 +00:00
Chris Lattner
bbd8a94a9b 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
2a43c7c03d Merge all individual .h files into a single Scalar.h file 
llvm-svn: 2537
 2002-05-07 20:03:00 +00:00
Chris Lattner
e615c275c5 This doesn't use DCE! 
llvm-svn: 2536
 2002-05-07 20:02:44 +00:00
Chris Lattner
f7806b0212 Move UnifyFunctionExitNodes to Utils library: final resting place this time 
llvm-svn: 2531
 2002-05-07 19:18:48 +00:00
Chris Lattner
276dd3d721 fix comments and documentation in file 
llvm-svn: 2530
 2002-05-07 19:04:39 +00:00
Chris Lattner
e125e808a8 Split ChangeAllocations.cpp into Raise & LowerAllocations.cpp 
llvm-svn: 2529
 2002-05-07 19:02:48 +00:00
Chris Lattner
6ccbd5804a Cleanup implementation a bit 
llvm-svn: 2526
 2002-05-07 18:51:25 +00:00
Chris Lattner
9e1c79995e 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
c5a6d978b8 Reduce dependance on TransformInternals.h, instead using the TransformUtils library 
llvm-svn: 2518
 2002-05-07 18:12:18 +00:00
Chris Lattner
a35a291f7b Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h 
llvm-svn: 2517
 2002-05-07 18:11:30 +00:00
Chris Lattner
c099f62190 Factor code out to the TransformUtils library 
llvm-svn: 2516
 2002-05-07 18:10:55 +00:00
Chris Lattner
7b20305ef9 Factor code out of TransformInternals into the Transform Utils library 
llvm-svn: 2515
 2002-05-07 18:09:15 +00:00
Chris Lattner
e817245564 Build Transforms Utils library 
llvm-svn: 2514
 2002-05-07 18:08:50 +00:00
Chris Lattner
d5477af051 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
394781b660 * 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
4a830e1a4a * 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
ca538273d4 Only do masking for unsigned values! 
llvm-svn: 2504
 2002-05-06 18:54:59 +00:00
Chris Lattner
66ff017174 * 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
24ebec1273 Handle X = phi Y --> X = Y 
llvm-svn: 2501
 2002-05-06 18:06:38 +00:00
Chris Lattner
910ca80941 * 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
b40c1bf6f7 Clean up ADCE by removing extraneous wrapper class 
llvm-svn: 2494
 2002-05-06 17:27:57 +00:00
Chris Lattner
c5279917bc Combine not (not X) -> X 
llvm-svn: 2493
 2002-05-06 17:03:21 +00:00
Chris Lattner
24a94a50d8 Support more cases... 
llvm-svn: 2490
 2002-05-06 16:49:18 +00:00
Chris Lattner
24ebdf3f74 Add many more instruction combination simplifications 
llvm-svn: 2484
 2002-05-06 16:14:14 +00:00
Chris Lattner
ef7f8fc474 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
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
6212dd5c08 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
2c44e5bca3 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
66f5b12141 Fix bug: test/Regression/Transforms/LevelRaise/2002-05-02-BadCastElimination.ll 
llvm-svn: 2429
 2002-05-02 17:37:34 +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
8a6104c3cb Fixed bug: test/Regression/Transforms/Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
llvm-svn: 2423
 2002-05-01 15:38:23 +00:00
Chris Lattner
5879b0928b Remove unneccesary pass 
llvm-svn: 2420
 2002-04-30 20:52:49 +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
4968cc38aa Fix for problem when allocating something like this: 
malloc(100-i);

llvm-svn: 2409
 2002-04-29 20:09:21 +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
cfc512e714 Eliminate dead global variables 
llvm-svn: 2400
 2002-04-29 18:13:11 +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
50a089867d Eliminate the PromoteInstance class, incorporating it into the PromotePass 
class.

llvm-svn: 2375
 2002-04-28 19:12:38 +00:00
Chris Lattner
b8ade8715e 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
1d9e63dca0 * 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
246083577b 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
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
e5d8bd9baf Be careful not to make "external" function internal 
llvm-svn: 2363
 2002-04-28 05:48:34 +00:00
Chris Lattner
23e713d49d Initial checkin of new "Internalize" pass for GCCLD 
llvm-svn: 2362
 2002-04-28 05:43:27 +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
741453dd60 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
2f0ee1833d s/Method/Function 
llvm-svn: 2336
 2002-04-27 07:27:19 +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
1e7147c9e9 * 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
078d292f4c Change Constant::getNullConstant to Constant::getNullValue 
llvm-svn: 2323
 2002-04-27 02:25:14 +00:00
Chris Lattner
039edb92f3 Programs that actually free memory were broken 
llvm-svn: 2307
 2002-04-18 22:11:30 +00:00
Chris Lattner
8e2b6edf87 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
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
eee0e3f1f7 Correctly transform dependant arguments, allowing the perimeter bm to work. 
llvm-svn: 2282
 2002-04-18 14:43:30 +00:00
Chris Lattner
04437c9749 Add casts for documentation 
llvm-svn: 2272
 2002-04-16 22:10:52 +00:00
Chris Lattner
68c032623c * 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
c004e8f534 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
1923a5cfaa Eliminate cast of same type instructions. 
llvm-svn: 2251
 2002-04-15 19:45:29 +00:00
Chris Lattner
2e20403fad * 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
983272ba58 Turn off debug output 
llvm-svn: 2247
 2002-04-14 06:14:41 +00:00
Chris Lattner
3b7f72e4e4 * 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
47b17915d5 * 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
249f5243f1 * 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
24f4497fe9 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
3b04124abd * 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
150fc89dcd 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
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
0cfa70b083 Eliminate explicit use of Writer library, using debug dump output instead. 
llvm-svn: 2147
 2002-04-07 22:31:23 +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
8afff0c29a s/MethodType/FunctionType 
llvm-svn: 2115
 2002-04-04 22:19:18 +00:00
Chris Lattner
1ee6bf5249 PATypeHolder is now not a template 
llvm-svn: 2106
 2002-04-04 19:24:34 +00:00
Chris Lattner
2e3a4dece6 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
99da111daf Add extra case here to avoid getting spurious output 
llvm-svn: 2086
 2002-04-01 00:45:33 +00:00
Chris Lattner
c620b825b6 Add debug output 
llvm-svn: 2066
 2002-03-31 07:17:46 +00:00
Chris Lattner
4c4a273f43 * 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
410c6394d3 * 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
36d50d01ab 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
a4b9a9f573 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
9166ac0b3f 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
b6b7c3fe60 s/Method/Function 
llvm-svn: 2048
 2002-03-29 19:04:45 +00:00
Chris Lattner
57dd5ed245 New clone function routine 
llvm-svn: 2045
 2002-03-29 19:03:54 +00:00
Chris Lattner
6b1ce137c2 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
5df9c977e1 s/Method/Function 
llvm-svn: 2043
 2002-03-29 17:08:29 +00:00
Chris Lattner
3a9f1dd66a Modularize code a bit 
llvm-svn: 2040
 2002-03-29 06:21:38 +00:00
Chris Lattner
7c2529076a 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
084601e6f4 s/Method/Function 
llvm-svn: 2034
 2002-03-29 03:44:36 +00:00
Chris Lattner
a2d3c99dfc Simplify code a bit by using Module::getOrInsertFunction 
llvm-svn: 2032
 2002-03-29 03:43:24 +00:00
Chris Lattner
815e2f4daa Flesh out a bunch more code, print allocations that are poolable. 
llvm-svn: 2031
 2002-03-29 03:40:59 +00:00
Chris Lattner
e46e35806a s/method/function 
llvm-svn: 2030
 2002-03-29 03:40:25 +00:00
Chris Lattner
4ca6fd00f2 s/Method/Function/g 
llvm-svn: 2029
 2002-03-29 03:39:36 +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
0336a78488 Initial checkin of Noop pass that will be the pool allocator 
llvm-svn: 2014
 2002-03-28 18:08:31 +00:00
Cameron Buschardt
49c09d5b24 * Move classes around 
* rename constructor function
* Move stuff into anonymous namespaces

llvm-svn: 2007
 2002-03-27 23:28:40 +00:00
Cameron Buschardt
bcff69b0f4 Implemented promote mem->reg pass. 
llvm-svn: 2005
 2002-03-27 23:17:37 +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
bd1e4e8bd8 Moved to directory Scalar/ and renamed. 
llvm-svn: 1977
 2002-03-24 03:55:06 +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
Chris Lattner
c481e92886 Rename Method to Function 
llvm-svn: 1957
 2002-03-23 22:51:58 +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
2ed4beefea Fix bug test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise3.ll 
llvm-svn: 1943
 2002-03-21 23:02:37 +00:00
Chris Lattner
ad241cc3ea Fix test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise2.ll 
llvm-svn: 1941
 2002-03-21 22:39:59 +00:00
Chris Lattner
a80b65c208 Fix test/Regression/Other/2002-03-21-LevelRaiseMiss.ll 
llvm-svn: 1933
 2002-03-21 21:21:13 +00:00
Chris Lattner
c2b5cb5619 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
559c71f6f4 Implement the new InsertInstBeforeInst function 
llvm-svn: 1930
 2002-03-21 06:24:00 +00:00
Chris Lattner
14fe793707 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
e9ec6058e4 Declare the new InsertInstBeforeInst function 
llvm-svn: 1927
 2002-03-21 06:15:53 +00:00
Chris Lattner
72367834b0 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
db90f5f6ea Namespace qualify debugging code 
llvm-svn: 1921
 2002-03-21 03:02:07 +00:00
Vikram S. Adve
308f672ac8 Just a comment. 
llvm-svn: 1908
 2002-03-18 03:40:25 +00:00