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Author SHA1 Message Date
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
4ffce19c71 More testcases for SCCP 
llvm-svn: 2444
 2002-05-02 20:41:39 +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
4d656517dc Additional testcase 
llvm-svn: 2442
 2002-05-02 20:19:11 +00:00
Chris Lattner
25a2a2b61c Run the SCCP test 
llvm-svn: 2441
 2002-05-02 20:18:53 +00:00
Chris Lattner
d76f5b3ce6 First testcase for SCCP pass 
llvm-svn: 2440
 2002-05-02 20:18:37 +00:00
Chris Lattner
295d802096 Simplify the testcase a bit 
llvm-svn: 2439
 2002-05-02 19:58:05 +00:00
Chris Lattner
55a557416c New testcase 
llvm-svn: 2438
 2002-05-02 19:54:58 +00:00
Chris Lattner
dff0195064 Implement cast operations on booleans to allow casting bools to ints, f.e. 
llvm-svn: 2437
 2002-05-02 19:28:45 +00:00
Chris Lattner
8f309d920f * Fix a bug (test/Regression/Assembler/2002-05-02-InvalidForwardRef.ll) 
introduced in the 1.66 revision of this file.
* Convert a hard coded constant to a symbolic value.

llvm-svn: 2436
 2002-05-02 19:27:42 +00:00
Chris Lattner
c0d1010e65 New testcase for assembler failure 
llvm-svn: 2435
 2002-05-02 19:12:21 +00:00
Chris Lattner
bbd002a9ca The implementation keyword is no longer neccesary 
llvm-svn: 2434
 2002-05-02 19:11:29 +00:00
Chris Lattner
7af6cac869 The "implementation" is now allowed but not required by the parser. All type 
definitions must still occur before function bodies, but the wierd keyword is
no longer neccesary.

llvm-svn: 2433
 2002-05-02 19:11:13 +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
7222c2f810 Intitial checkin of cast tests 
llvm-svn: 2427
 2002-05-02 17:01:39 +00:00
Chris Lattner
6c6eb4e034 New testcase for bug found by Vikram 
llvm-svn: 2426
 2002-05-02 16:16:39 +00:00
Chris Lattner
87b97fc7c6 Check another case 
llvm-svn: 2424
 2002-05-02 15:24:40 +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
2d267a0074 New bug testcase 
llvm-svn: 2422
 2002-05-01 15:33:12 +00:00
Chris Lattner
453a66845a Remove unneccesary pass. 
llvm-svn: 2421
 2002-04-30 20:53:05 +00:00
Chris Lattner
5879b0928b Remove unneccesary pass 
llvm-svn: 2420
 2002-04-30 20:52:49 +00:00
Chris Lattner
f20e518434 New testcase 
llvm-svn: 2419
 2002-04-30 19:50:47 +00:00
Chris Lattner
8eb37c77d6 Fix problem where subpasses would invalidate all analyses outstanding 
llvm-svn: 2418
 2002-04-30 18:50:17 +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
4c8731d941 New test cases for mul folding 
llvm-svn: 2416
 2002-04-29 22:24:24 +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
2716e9868c Make the range insert operation return an iterator, even though the STL 
range insert doesn't

llvm-svn: 2413
 2002-04-29 21:23:30 +00:00
Chris Lattner
3b2084a357 These aren't tools 
llvm-svn: 2412
 2002-04-29 20:29:30 +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
9cbf621bb5 Move constant merging pass earlier 
Include the SCCP pass in gccas

llvm-svn: 2410
 2002-04-29 20:11:38 +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
da0ca09961 Merge Chris's script with the one already checked in 
llvm-svn: 2408
 2002-04-29 19:11:01 +00:00
Chris Lattner
05a37c1dae Fix #include broken by iMemory.h not including DerivedTypes.h 
llvm-svn: 2407
 2002-04-29 18:56:45 +00:00
Chris Lattner
ba813cb36f Add neccesary #include 
llvm-svn: 2406
 2002-04-29 18:48:55 +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
a2c59f1302 Changes so that iMemory.h doesn't include DerivedTypes.h 
llvm-svn: 2404
 2002-04-29 18:46:50 +00:00
Chris Lattner
2a1f5e79c3 Change to allow iMemory.h to avoid including DerivedTypes.h 
llvm-svn: 2403
 2002-04-29 18:46:22 +00:00
Chris Lattner
9468519f34 Fix bug: test/Regression/Other/2002-04-29-NameBinding.ll 
llvm-svn: 2402
 2002-04-29 18:25:33 +00:00
Chris Lattner
9689364fee Remove InstForest from analysis namespace 
llvm-svn: 2401
 2002-04-29 18:13:31 +00:00
Chris Lattner
cfc512e714 Eliminate dead global variables 
llvm-svn: 2400
 2002-04-29 18:13:11 +00:00
Chris Lattner
294b5915d8 Remove analysis namespace 
llvm-svn: 2399
 2002-04-29 18:12:52 +00:00
Chris Lattner
657c514823 New test for broken asm parser 
llvm-svn: 2398
 2002-04-29 18:12:28 +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