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Commit Graph

1809 Commits

Author SHA1 Message Date
Chris Lattner
22116975ce - implemented instcombine of phi (X, X, X) -> X
llvm-svn: 3397
2002-08-20 15:35:35 +00:00
Chris Lattner
69a443b356 Implement ConstantExprs in CWriter
llvm-svn: 3394
2002-08-19 23:09:46 +00:00
Chris Lattner
ddd1d61b21 Incorporate calcTypeNameVar into CWriter class, fixing
test/Regression/CBackend/2002-08-19-FunctionPointer.c in the process

llvm-svn: 3392
2002-08-19 22:17:53 +00:00
Chris Lattner
b6818687da Output forward definitions of global vars to handle recursive intializers correctly.
llvm-svn: 3391
2002-08-19 21:48:40 +00:00
Chris Lattner
fc62e1bdb1 - Change constant printing to be better integrated with the rest of the
CWriter class.  Write directly to stream instead of building a big
      string, then writing it out.
    - Implement printing of ConstantPointerRefs

llvm-svn: 3389
2002-08-19 21:32:41 +00:00
Chris Lattner
85290b6ab3 Add missing space
llvm-svn: 3387
2002-08-19 20:42:12 +00:00
Chris Lattner
ebf7d3b8ff Fix bug: test/Regression/Assembler/2002-08-19-BytecodeReader.llx
llvm-svn: 3384
2002-08-19 16:48:21 +00:00
Chris Lattner
fe91f23c6d Fix the -time-passes option to not print NaN when there is zero execution time
llvm-svn: 3382
2002-08-19 15:43:33 +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
45aae6cd96 - ConstantPointerRefs are now automatically removed from the module table
when they are destroyed, which makes Constant::destroyConstant an actually
    useful external interface.  Expose these methods publicly.
  - Implement destroyConstant on ConstPointerNull so that destroyConstant can
    be used on any derived type constant safely.

llvm-svn: 3379
2002-08-18 00:40:04 +00:00
Chris Lattner
8cc9a599b5 Turn off a debugging optimization that just slows bytecode reading down
llvm-svn: 3377
2002-08-18 00:38:32 +00:00
Chris Lattner
143e810ca9 Add Module::dump() method
llvm-svn: 3375
2002-08-17 23:32:47 +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
31188e9d7b Fix stupid oversight of missing #include.
llvm-svn: 3367
2002-08-17 22:02:41 +00:00
Chris Lattner
f3d49adf85 - Finally nailed: test/Regression/Assembler/2002-08-16-ConstExprInlined.llx
- ParseConstantPool was resolving reference to value using the function
      slot # instead of the global slot #.
  - Bytecode reader changes:
    - Remove the failure<> template from Bytecode Reader
    - Remove extraneous #includes
    - s/method/function/ a bit
    - Eliminate the fwdRefs class that just added abstraction where it was not
      needed, making things more complex.
    - Use a vector instead of a list for function signatures.

llvm-svn: 3366
2002-08-17 22:01:27 +00:00
Chris Lattner
e63ef1c3ab Changed parser to always use parenthesis on ConstExprs to be consistent
llvm-svn: 3363
2002-08-16 21:17:11 +00:00
Chris Lattner
a2b28689a9 - Remove unused STRING token from lexer & parser
- Changed parser to always use parenthesis on ConstExprs to be consistent
  - Parser now passes TRUE and FALSE tokens as a special case of the ConstExpr
    machinery instead of a special case of constant int stuff
  - Fix the AsmParser to use ValueRef ::= ConstExpr, and remove
    ResolvedVal ::= ConstExpr this allows constexprs to be used in PHI nodes

llvm-svn: 3362
2002-08-16 21:14:40 +00:00
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