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Commit Graph

1792 Commits

Author SHA1 Message Date
Chris Lattner
0d1bc11665 Write constexpr casts using the cast X to Y notation, not using the implicit
type result

llvm-svn: 3354
2002-08-15 19:37:43 +00:00
Chris Lattner
7cd8403f2b Parse const expr cast instruction the same way the instruction is formed
llvm-svn: 3353
2002-08-15 19:37:11 +00:00
Chris Lattner
8c5c0b9560 Move ConstExpr production to unify ConstVal stuff
llvm-svn: 3351
2002-08-15 18:17:28 +00:00
Chris Lattner
971fa225af Fix bug: test/Regression/Assembler/2002-08-15-UnresolvedGlobalReference.ll
llvm-svn: 3350
2002-08-15 17:58:33 +00:00
Chris Lattner
4a542aeb38 Simplify the code
llvm-svn: 3348
2002-08-15 16:15:36 +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
Vikram S. Adve
21b0deb4ab Unary Not (boolean and bitwise) is no longer a separate LLVM instruction
but is instead implemented with XOR.  Note that the InstrForest opLabels
for Not and BNot remain the same, i.e., the XOR is recognized and
represented as a (boolean or bitwise) Not when building the instruction
trees.  But these tree nodes are now binary, not unary.

llvm-svn: 3343
2002-08-15 14:19:22 +00:00
Vikram S. Adve
5e22d4f669 Revise code generation for unary Not (boolean and bitwise), which is
no longer a separate instruction but is instead implemented with XOR.

llvm-svn: 3342
2002-08-15 14:17:37 +00:00
Vikram S. Adve
c66b996e40 Added more helper functions for binary instructions emulating
unary Neg and Not: isNeg, isNot, getNegArgument, and getNotArgument.

llvm-svn: 3341
2002-08-15 14:15:48 +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
d909e03b2e Remove support for unary operators.
llvm-svn: 3326
2002-08-14 18:19:46 +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
119695e390 Remove support for NOT instruction
llvm-svn: 3320
2002-08-14 18:00:52 +00:00
Chris Lattner
c264beb7c5 Remove support for unary operators
llvm-svn: 3318
2002-08-14 17:53:45 +00:00
Chris Lattner
794511bf40 Implement two constructor functions for "unary" instructions
llvm-svn: 3317
2002-08-14 17:52:27 +00:00
Chris Lattner
9f528df0ad Remove support forNOT instruction
llvm-svn: 3316
2002-08-14 17:52:06 +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
ed328517aa AsmParser turns 'not' instructions into 'xor' instructions now.
llvm-svn: 3309
2002-08-14 17:12:33 +00:00
Chris Lattner
26186786e1 Return null on failure, instead of aborting.
llvm-svn: 3308
2002-08-14 17:12:13 +00:00
Vikram S. Adve
87928f2098 Add method MachineInstr::substituteValue() which substitutes
one Value with another one in all operands and implicit references
of the machine instruction.

llvm-svn: 3306
2002-08-14 16:52:58 +00:00
Chris Lattner
3d013e4c40 Minor change to make lli print out characters numerically as well as symbolically
llvm-svn: 3303
2002-08-13 20:45:11 +00:00
Vikram S. Adve
19b35e6904 Bug fix in TargetData::getIndexedOffset: We were using the pointer
type instead of the element type for the element size for arrays.

llvm-svn: 3302
2002-08-13 18:17:56 +00:00
Vikram S. Adve
74af31c71e Several bug fixes in casting to signed int values.
llvm-svn: 3301
2002-08-13 18:04:08 +00:00
Chris Lattner
b6a04772b5 - Rename ConstantGenericIntegral -> ConstantIntegral
llvm-svn: 3300
2002-08-13 17:50:24 +00:00
Chris Lattner
b639abc322 - Rename ConstantGenericIntegral -> ConstantIntegral
- Add new methods to ConstantIntegral: getMaxValue, getMinValue,
   getAllOnesValue

llvm-svn: 3299
2002-08-13 17:50:20 +00:00
Vikram S. Adve
5f028d4787 Handle small unsigned results correctly by clearing high bits.
Bug fixes in casting to signed int values.

llvm-svn: 3297
2002-08-13 17:40:54 +00:00
Brian Ensink
8395e5b203 Build correctly in the face of /shared.
-Chris

llvm-svn: 3296
2002-08-12 22:09:44 +00:00
Chris Lattner
4c524344b9 - Clean up interface to Sparc register handling a bit:
- Eliminate Sparc*Order classes, moving contents to Sparc*Class classes
   - get register name methods now return const char * const pointers instead
     of std::string's.
   - Added file header comments to SparcRegClassInfo.(cpp|h)
   - Moved BIG constant arrays out of SparcRegClassInfo.h, into
     SparcRegInfo.cpp.  This should allow a LOT of std::string constructors to
     not have to be called.

llvm-svn: 3295
2002-08-12 21:25:05 +00:00
Chris Lattner
4fbca59155 - Added a new superclass of ConstantBool/ConstantInt: ConstantGenericIntegral
- Moved InstCombine: isMaxValue, isMinValue, isAllOnesValue to Constants.h

llvm-svn: 3293
2002-08-12 21:21:21 +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
ba82fa7aeb Remove some extraneous #includes
llvm-svn: 3289
2002-08-12 20:24:46 +00:00
Chris Lattner
f439d24c89 Changes to make GlobalValueRefMap not derive from std::map.
llvm-svn: 3288
2002-08-12 20:23:29 +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
c159d739a5 *** empty log message ***
llvm-svn: 3282
2002-08-09 22:52:08 +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
12af061d07 Very minor cleanups
llvm-svn: 3271
2002-08-09 18:55:18 +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
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