Chris Lattner
0d1bc11665
Write constexpr casts using the cast X to Y notation, not using the implicit
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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
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llvm-svn: 3353
2002-08-15 19:37:11 +00:00
Chris Lattner
8c5c0b9560
Move ConstExpr production to unify ConstVal stuff
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llvm-svn: 3351
2002-08-15 18:17:28 +00:00
Chris Lattner
971fa225af
Fix bug: test/Regression/Assembler/2002-08-15-UnresolvedGlobalReference.ll
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llvm-svn: 3350
2002-08-15 17:58:33 +00:00
Chris Lattner
4a542aeb38
Simplify the code
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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.
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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
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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
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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'
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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
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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
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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
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llvm-svn: 3327
2002-08-14 18:22:19 +00:00
Chris Lattner
d909e03b2e
Remove support for unary operators.
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llvm-svn: 3326
2002-08-14 18:19:46 +00:00
Chris Lattner
980bf4b44d
Remove support for NOT instruction
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llvm-svn: 3323
2002-08-14 18:18:02 +00:00
Chris Lattner
34a9a81756
Remove extra #includes
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llvm-svn: 3322
2002-08-14 18:17:32 +00:00
Chris Lattner
119695e390
Remove support for NOT instruction
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llvm-svn: 3320
2002-08-14 18:00:52 +00:00
Chris Lattner
c264beb7c5
Remove support for unary operators
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llvm-svn: 3318
2002-08-14 17:53:45 +00:00
Chris Lattner
794511bf40
Implement two constructor functions for "unary" instructions
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llvm-svn: 3317
2002-08-14 17:52:27 +00:00
Chris Lattner
9f528df0ad
Remove support forNOT instruction
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llvm-svn: 3316
2002-08-14 17:52:06 +00:00
Chris Lattner
890adeb7a2
- Fix InstCombine pass to not generate or process NOT instructions
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- 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
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llvm-svn: 3313
2002-08-14 17:45:39 +00:00
Chris Lattner
ed328517aa
AsmParser turns 'not' instructions into 'xor' instructions now.
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llvm-svn: 3309
2002-08-14 17:12:33 +00:00
Chris Lattner
26186786e1
Return null on failure, instead of aborting.
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llvm-svn: 3308
2002-08-14 17:12:13 +00:00
Vikram S. Adve
87928f2098
Add method MachineInstr::substituteValue() which substitutes
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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
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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
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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.
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llvm-svn: 3301
2002-08-13 18:04:08 +00:00
Chris Lattner
b6a04772b5
- Rename ConstantGenericIntegral -> ConstantIntegral
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llvm-svn: 3300
2002-08-13 17:50:24 +00:00
Chris Lattner
b639abc322
- Rename ConstantGenericIntegral -> ConstantIntegral
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- 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.
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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.
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-Chris
llvm-svn: 3296
2002-08-12 22:09:44 +00:00
Chris Lattner
4c524344b9
- Clean up interface to Sparc register handling a bit:
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- 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
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- 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
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* 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
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llvm-svn: 3289
2002-08-12 20:24:46 +00:00
Chris Lattner
f439d24c89
Changes to make GlobalValueRefMap not derive from std::map.
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llvm-svn: 3288
2002-08-12 20:23:29 +00:00
Chris Lattner
0a51808266
New functionality for instcombine:
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* 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 ***
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llvm-svn: 3282
2002-08-09 22:52:08 +00:00
Chris Lattner
d2d8928f1b
UnaryOperator::create should take a name just like BinaryOperator::create
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llvm-svn: 3279
2002-08-09 21:39:38 +00:00
Chris Lattner
8a4787495a
* Removed extraneous #includes
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* 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
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* 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
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llvm-svn: 3275
2002-08-09 20:05:34 +00:00
Chris Lattner
12af061d07
Very minor cleanups
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llvm-svn: 3271
2002-08-09 18:55:18 +00:00
Chris Lattner
62be99967a
Initial checkin of the "Hello World" Pass.
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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
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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
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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
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llvm-svn: 3262
2002-08-08 19:00:34 +00:00
Chris Lattner
75f1e2a970
Minor changes to DEBUG()'s
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llvm-svn: 3261
2002-08-07 21:41:11 +00:00