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0a51808266
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Author SHA1 Message Date
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
e74955adc5 xor x, ALLONES should -> not x 
llvm-svn: 3285
 2002-08-09 23:34:39 +00:00
Chris Lattner
531bdf1aaf setcc of booleans should always be eliminated 
llvm-svn: 3284
 2002-08-09 23:34:18 +00:00
Chris Lattner
8f1085124e Add more strength reduction testcases 
llvm-svn: 3283
 2002-08-09 23:33:58 +00:00
Chris Lattner
c159d739a5 *** empty log message *** 
llvm-svn: 3282
 2002-08-09 22:52:08 +00:00
Chris Lattner
3575b5733a * IntervalPartition no longer derives from vector 
llvm-svn: 3281
 2002-08-09 22:52:06 +00:00
Chris Lattner
9bcfec701d Do not add an extra vtable to EVERY machineinstr created. 
llvm-svn: 3280
 2002-08-09 21:49:21 +00:00
Chris Lattner
d2d8928f1b UnaryOperator::create should take a name just like BinaryOperator::create 
llvm-svn: 3279
 2002-08-09 21:39:38 +00:00
Chris Lattner
8a4787495a * Removed extraneous #includes 
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3278
 2002-08-09 20:08:06 +00:00
Chris Lattner
4d9fadc44a * Removed extraneous #includes 
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3277
 2002-08-09 20:08:03 +00:00
Chris Lattner
c95ce32146 We are using std::vector, so remove extraneous namespace prefixes 
llvm-svn: 3275
 2002-08-09 20:05:34 +00:00
Chris Lattner
eeb7564269 Change machinecode for instruction to not inherit from vector. 
llvm-svn: 3274
 2002-08-09 20:04:28 +00:00
Chris Lattner
98c71e5666 The second parameter of hash_set is the default, remove it. 
llvm-svn: 3273
 2002-08-09 19:40:42 +00:00
Chris Lattner
f51399457e Oops, I accidentally broke the .d files. Fixed thusly 
llvm-svn: 3272
 2002-08-09 19:18:12 +00:00
Chris Lattner
12af061d07 Very minor cleanups 
llvm-svn: 3271
 2002-08-09 18:55:18 +00:00
Chris Lattner
de18156469 * Document the BUILD_ROOT changes and option 
* Convert directories to <tt> like they should be

llvm-svn: 3270
 2002-08-09 16:14:56 +00:00
Chris Lattner
8212464b08 * Remove some bogus dependencies on Depend/.dir 
* Build into the machine local /shared directory instead of using local
  Debug/Depend/Release directories

llvm-svn: 3269
 2002-08-09 15:41:55 +00:00
Chris Lattner
47e94cfb44 Oh yeah, I wrote it. 
llvm-svn: 3268
 2002-08-08 20:23:41 +00:00
Chris Lattner
3b2919e2e4 Initial checkin of the "Writting an LLVM Pass" document 
llvm-svn: 3267
 2002-08-08 20:11:18 +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
50900b8381 - 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: 3263
 2002-08-08 19:01:11 +00:00
Chris Lattner
62fb7f0304 Remove extraneous #includes 
llvm-svn: 3262
 2002-08-08 19:00:34 +00:00
Chris Lattner
75f1e2a970 Minor changes to DEBUG()'s 
llvm-svn: 3261
 2002-08-07 21:41:11 +00:00
Chris Lattner
d9530f6734 Reorder #includes to be right 
llvm-svn: 3260
 2002-08-07 21:41:03 +00:00
Chris Lattner
811987ce5c Merge three loops into one. 
llvm-svn: 3259
 2002-08-07 21:39:48 +00:00
Chris Lattner
73ed86900d Fix breakage in the build 
llvm-svn: 3258
 2002-08-07 21:39:39 +00:00
Chris Lattner
7a0e7379bb Only include the sparc.o file once! 
llvm-svn: 3257
 2002-08-07 19:42:34 +00:00
Chris Lattner
a4b59e7f2b Simplify writing custom parsers. 
llvm-svn: 3256
 2002-08-07 18:36:37 +00:00
Chris Lattner
ef1061e61d Simplify interface to parsers. 
llvm-svn: 3255
 2002-08-07 18:36:27 +00:00
Chris Lattner
d24bb4bfb7 * Write the "Custom parser" section 
* Boldify stuff that changes in the help output.

llvm-svn: 3254
 2002-08-07 18:27:04 +00:00
Chris Lattner
381f3b8dfe Write the reference section, make other minor editing changes elsewhere. 
llvm-svn: 3253
 2002-08-06 19:36:06 +00:00
Mehwish Nagda
0517186a70 added Mapping and Function Pass 
llvm-svn: 3251
 2002-08-05 23:23:19 +00:00
Vikram S. Adve
34c7fef2d6 Add function GetConstantValueAsUnsignedInt. 
llvm-svn: 3249
 2002-08-04 20:55:59 +00:00
Vikram S. Adve
5d16e242e1 Bug fix in CreateCodeToLoadConst(): use sign of dest, not operand, 
in choosing how to create int-set instructions.

llvm-svn: 3248
 2002-08-04 20:55:37 +00:00
Vikram S. Adve
95b42e5892 Add a sequence of GEPs with constant indices, for folding. 
llvm-svn: 3247
 2002-08-04 20:53:14 +00:00
Vikram S. Adve
9dd19151b8 Bug fix in TargetData::getIndexedOffset(): handle struct offset 
after array offset correctly.  The type was not being updated for
array offsets!

llvm-svn: 3246
 2002-08-04 20:52:39 +00:00
Vikram S. Adve
03a5ca5dcc Bug fix in SetOperandsForMemInstr: handle leading zeros correctly 
when folding or not folding GEPs.

llvm-svn: 3245
 2002-08-04 20:51:05 +00:00
Vikram S. Adve
3489677a7e Add function GetConstantValueAsUnsignedInt. 
Fix 2 bugs in FoldGetElemChain so index vector is not modified
when no GEPs are folded in, and so a hasLeadingZero is computed
only for the last folded GEP, not the one after that if any.

llvm-svn: 3244
 2002-08-04 20:49:49 +00:00
Chris Lattner
6f818d501c Fix compilation problem. IsIndexZero doesn't exist, use IsZero instead. 
llvm-svn: 3243
 2002-08-03 20:57:38 +00:00
Chris Lattner
63b816c7bc Testcase for stuff instcombine should do eventually 
llvm-svn: 3240
 2002-08-03 20:30:26 +00:00
Chris Lattner
439fb9cf91 Add some more features that we could instcombine away 
llvm-svn: 3239
 2002-08-03 20:24:58 +00:00
Chris Lattner
1fdeca3bb6 *** empty log message *** 
llvm-svn: 3238
 2002-08-03 20:24:45 +00:00
Chris Lattner
6ac9ec3dab Comment options that may be enabled 
llvm-svn: 3237
 2002-08-03 20:19:30 +00:00
Vikram S. Adve
6316385f3e Simplified handling of array indexes in SetMemOperands_Internal. 
llvm-svn: 3236
 2002-08-03 13:48:21 +00:00
Vikram S. Adve
8159deecc3 Add MemAccessInst::getNumIndices(). 
llvm-svn: 3234
 2002-08-03 13:22:36 +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
Vikram S. Adve
e876b94dc4 Run both *.ll and *.c tests. 
llvm-svn: 3232
 2002-08-03 13:17:03 +00:00
Vikram S. Adve
eb0d0bd4d8 Added expected decomposed sequence in comments, plus a couple of new cases. 
llvm-svn: 3231
 2002-08-03 13:16:47 +00:00