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173 Commits

Author SHA1 Message Date
Chris Lattner
a61cda01c2 Second half of a fix for PR218 & test/Regression/Assembler/2004-02-01-NegativeZero.llx. 
Basically we store floating point values as their integral components, instead of relying
on the semantics of floating point < to differentiate between values.  This is likely to
make the map search be faster anyway.

llvm-svn: 11064
 2004-02-01 22:49:04 +00:00
Chris Lattner
317a6fec82 Fix a problem brian ran into with the bytecode reader asserting. It turns 
out that the problem was actually the writer writing out a 'null' value
because it didn't normalize it.  This fixes:
test/Regression/Assembler/2004-01-22-FloatNormalization.ll

llvm-svn: 10967
 2004-01-23 00:55:21 +00:00
Chris Lattner
8767bd75e4 Fix bug in previous checkin: Demorgan would be ashamed of me, I need to 
lay off the crack.

llvm-svn: 10855
 2004-01-14 17:51:53 +00:00
Chris Lattner
a991025919 Implement ConstantArray::isString 
llvm-svn: 10851
 2004-01-14 17:06:38 +00:00
Chris Lattner
b4e121c364 Rename ConstantHandling.* -> ConstantFolding.* 
Move a bunch of (now) private stuff from ConstantFolding.h into
ConstantFolding.cpp.

This _finally_ gets us to a place where we have a sane constant folder.  The
rules are:

1. LLVM clients now use ConstantExpr::get* methods to fold constants.  If they
   cannot be folded, a constantexpr is created, so these methods always return
   valid Constant*'s.
2. The implementation of ConstantExpr::get* uses the functions exposed by
   ConstantFolding.h to try to fold constants.  If they cannot be folded,
   they should return a null pointer.
3. The implementation of ConstantFolding can do whatever it wants, and only
   has one client (Constants.cpp)

This cuts down on the wierd dependencies, and eliminates the two interfaces.
The old constanthandling interface was especially bad for clients to use
because almost none of them took the failure condition into consideration,
thus leading to obscure problems.

llvm-svn: 10807
 2004-01-12 21:13:12 +00:00
Chris Lattner
d757923e11 Move ConstantHandling.h into lib/VMCore and out of include/llvm 
llvm-svn: 10805
 2004-01-12 20:48:11 +00:00
Chris Lattner
b420886171 Eliminate ConstantFoldShiftInstruction reference 
llvm-svn: 10801
 2004-01-12 20:40:42 +00:00
Chris Lattner
35771f4fd2 Fix out of date comment, remove use of ConstantExpr::getShift 
llvm-svn: 10794
 2004-01-12 19:12:58 +00:00
Chris Lattner
52759f5c5e Make ConstantExpr::get work for shifts as well 
llvm-svn: 10790
 2004-01-12 19:04:55 +00:00
Chris Lattner
a1da49a55c Finegrainify namespacification 
llvm-svn: 10131
 2003-11-21 20:23:48 +00:00
Chris Lattner
1f762c7571 The ConstantPointer class is now gone. 
llvm-svn: 10057
 2003-11-17 19:47:21 +00:00
Brian Gaeke
d25f86d683 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
Chris Lattner
352ad83271 Add support for constant expr shifts 
llvm-svn: 9735
 2003-11-05 19:53:03 +00:00
Chris Lattner
4347464e2a Fix bug: instcombine/2003-10-23-InstcombineNullFail.ll 
llvm-svn: 9403
 2003-10-23 05:21:48 +00:00
Chris Lattner
53d92d23b0 Fix problem which effected linking apache 
llvm-svn: 9335
 2003-10-21 17:39:59 +00:00
John Criswell
b402729b30 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Chris Lattner
bd123c6e51 Add a sanity check for constant expression casts 
llvm-svn: 8951
 2003-10-07 22:19:19 +00:00
Chris Lattner
b5f0d32b91 Type tables are now AbstractTypeUsers. This allows them to merge together 
constants as necessary due to type resolution.  With this change, the
following spec benchmarks now link: 176.gcc, 177.mesa, 252.eon,
253.perlbmk, & 300.twolf.  IOW, all SPEC INT and FP benchmarks now link.

llvm-svn: 8853
 2003-10-05 00:17:43 +00:00
Chris Lattner
06dbcc0540 Minor random speedup: make Constant::getNullValue only call ConstantFOO::get 
once!

llvm-svn: 8845
 2003-10-03 19:34:51 +00:00
Chris Lattner
101d5058cb These methods are dead, remove them. Because the bodies will soon be 
ressurected, just ifdef them out for now.

llvm-svn: 8840
 2003-10-03 18:39:57 +00:00
Chris Lattner
83856d0df1 There is no reason for Value to be an AbstractTypeUser. This just makes things 
significantly more complete.  Instead, just make DerivedType's AbstractTypeUser's,
and make Value contain a PATypeHolder.

llvm-svn: 8828
 2003-10-02 19:44:40 +00:00
Chris Lattner
286e92a9ef Implement "unsafe" replaceAllUsesWWith stuff for use during type resolution. 
llvm-svn: 8209
 2003-08-29 05:36:46 +00:00
Chris Lattner
a2a7b891e5 Refactor code to make it useful outside of Constants.cpp 
llvm-svn: 8205
 2003-08-29 05:09:37 +00:00
Misha Brukman
cda7f97dbb The word dependent' has no a'. 
llvm-svn: 8030
 2003-08-21 22:14:26 +00:00
Chris Lattner
9fed232059 Fix linking bug in xboard 
llvm-svn: 7952
 2003-08-18 16:54:48 +00:00
Chris Lattner
6457a808f0 Fix a bug that brian reported 
llvm-svn: 7428
 2003-07-30 19:04:37 +00:00
Chris Lattner
6ad460b336 Simplify code by using ConstantInt::getRawValue instead of checking to see 
whether the constant is signed or unsigned, then casting

llvm-svn: 7252
 2003-07-23 15:22:26 +00:00
Chris Lattner
b40f50e3d1 Fix bug: InstCombine/2003-06-22-ConstantExprCrash.ll 
llvm-svn: 6857
 2003-06-22 20:48:30 +00:00
Chris Lattner
343c4d4987 Fix bug: Linker/2003-06-02-TypeResolveProblem2.ll 
llvm-svn: 6699
 2003-06-16 12:11:33 +00:00
Chris Lattner
37b01d74e4 * Make assertion message useful 
* Kill dead conditional

llvm-svn: 6544
 2003-06-02 17:42:47 +00:00
Chris Lattner
c17deffb2b Fix bug: Linker/2003-06-02-TypeResolveProblem.ll 
llvm-svn: 6542
 2003-06-02 17:25:46 +00:00
Chris Lattner
fbb45c1b92 Fix problem with last checkin. 
llvm-svn: 6328
 2003-05-25 16:15:32 +00:00
Chris Lattner
500984b918 Fix Bug: Linker/2003-04-26-NullPtrLinkProblem.ll 
This was a problem with constants having their types resolved to some new type,
but there was already a constant of the new type created.  Before, these types
were never merged together, now they are.

llvm-svn: 6314
 2003-05-23 20:03:32 +00:00
Chris Lattner
0462d7b16d Add support for shift constant expressions 
llvm-svn: 6260
 2003-05-21 17:49:25 +00:00
Chris Lattner
872fe63520 Fix bug: Assembler/2003-05-15-AssemblerProblem.llx 
llvm-svn: 6234
 2003-05-15 19:37:21 +00:00
Chris Lattner
e02634b9aa Remove unnecessary casts 
llvm-svn: 6201
 2003-05-14 17:51:05 +00:00
Chris Lattner
a33d9882ce Eliminate using declarations 
llvm-svn: 6179
 2003-05-13 21:37:02 +00:00
Chris Lattner
eacb88d2e9 Don't build constantexprs that could be folded 
llvm-svn: 5801
 2003-04-17 19:24:48 +00:00
Chris Lattner
bb00f755ed Change the interface to constant expressions to allow automatic folding 
llvm-svn: 5793
 2003-04-16 22:40:51 +00:00
Chris Lattner
5e5950b7e0 Fix ConstantUInt::isAllOnesValue 
llvm-svn: 5734
 2003-03-10 22:39:02 +00:00
Chris Lattner
90932ffc26 Remove #include 
Extend getNullValue to work with struct and array types

llvm-svn: 5718
 2003-03-06 21:02:18 +00:00
Chris Lattner
5b41b28fb6 - Dramatically simplify the Constant::mutateReferences implementation, 
allowing it to be called on all constant types (structures/arrays)

llvm-svn: 4160
 2002-10-14 03:30:23 +00:00
Chris Lattner
fdf2ca9468 - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.

llvm-svn: 4147
 2002-10-13 19:39:16 +00:00
Chris Lattner
0acdba0025 - Add new Constant::replaceUsesOfWithOnConstant which has an end result 
similar to User::replaceUsesOfWith but actually does the right thing for
    constants.

llvm-svn: 4102
 2002-10-09 23:12:25 +00:00
Chris Lattner
4a72e094f9 Fix bug: Assembler/2002-10-08-LargeArrayPerformance.ll by using 
std::vector::reserve when possible

llvm-svn: 4085
 2002-10-08 23:33:52 +00:00
Chris Lattner
ad291457ef include/llvm/DataTypes.h includes this #define so we don't need it anymore 
llvm-svn: 3708
 2002-09-13 22:24:57 +00:00
Chris Lattner
596aa597a6 Give better assertion message for error conditions 
llvm-svn: 3680
 2002-09-11 01:21:04 +00:00
Chris Lattner
3ce5b343c5 - Renamed Type::isIntegral() to Type::isInteger() 
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3574
 2002-09-03 01:08:28 +00:00
Chris Lattner
cc9d7e01c9 Add support for turning an array of characters into a string. 
llvm-svn: 3509
 2002-08-26 17:53:56 +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
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
26186786e1 Return null on failure, instead of aborting. 
llvm-svn: 3308
 2002-08-14 17:12:13 +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
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
1720a4c0b7 Cleanup ConstantExpr handling: 
* Correctly delete TypeHandles in AsmParser.  In addition to not leaking
   memory, this prevents a bug that could have occurred when a type got
   resolved that the constexpr was using
 * Check for errors in the AsmParser instead of hitting assertion failures
   deep in the code
 * Simplify the interface to the ConstantExpr class, removing unneccesary
   parameters to the ::get* methods.
 * Rename the 'getelementptr' version of ConstantExpr::get to
   ConstantExpr::getGetElementPtr

llvm-svn: 3161
 2002-07-30 18:54:25 +00:00
Chris Lattner
5f11498859 *** empty log message *** 
llvm-svn: 3065
 2002-07-24 22:08:53 +00:00
Chris Lattner
6be9ee3029 * ConstExpr::getelementptr now takes a vector of Constants not Values 
* Assert things instead of printing an error and returning null.

llvm-svn: 2949
 2002-07-18 00:14:50 +00:00
Anand Shukla
a8a95f234b added std:: to cerr and endl 
llvm-svn: 2914
 2002-07-16 00:02:17 +00:00
Vikram S. Adve
45eeb8e738 Ensure ConstExpr constants are unique using a 
map of <opcode, operands> to ConstExpr.

llvm-svn: 2909
 2002-07-15 18:19:33 +00:00
Vikram S. Adve
d670638ee6 Added subclass ConstantExpr to represent expressions consructed from 
constants using operators such as cast, getelementptr, add, shl, etc.
Note that a ConstantExpr can be of any type, so classof() in most
other subclasses (that discriminate by type) have to check that it
is also not a ConstantExpr.

llvm-svn: 2901
 2002-07-14 23:13:17 +00:00
Chris Lattner
a590093513 *** empty log message *** 
llvm-svn: 2813
 2002-06-30 16:25:25 +00:00
Anand Shukla
5dbf11fc92 added include<iostream> for cerr 
llvm-svn: 2800
 2002-06-25 22:04:00 +00:00
Chris Lattner
dfd421a7df MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner
321a8cf4ba Split ConstantVals.h into Constant.h and Constants.h 
llvm-svn: 2378
 2002-04-28 19:55:58 +00:00
Chris Lattner
83819833b1 * Change Constant::getNullConstant to Constant::getNullValue 
* Remove some unused code

llvm-svn: 2324
 2002-04-27 02:25:43 +00:00
Chris Lattner
8f81cd7da6 Move asmwriter/getStrValue cruft into AsmWriter.cpp file. 
llvm-svn: 2300
 2002-04-18 18:53:33 +00:00
Chris Lattner
c43b279e94 Remove unneccesary cast 
llvm-svn: 2269
 2002-04-16 21:36:29 +00:00
Chris Lattner
137fa92dce * Move include/llvm/Analysis/SlotCalculator.h to include/llvm/SlotCalculator.h 
because the slot calculator is already part of the VMCore library.
* Rename incorporateMethod and purgeMethod to *Function

llvm-svn: 2154
 2002-04-07 22:49:37 +00:00
Chris Lattner
47f1f0e588 Remove some gross code by using the VAlue::dump method to do debug dumps 
llvm-svn: 2149
 2002-04-07 22:32:25 +00:00
Chris Lattner
96135c924f Fix Bug: test/Regression/Other/2002-04-07-InfConstant.ll 
llvm-svn: 2142
 2002-04-07 08:42:53 +00:00
Chris Lattner
1c83a4a20c Fix bug: test/Regression/Other/2002-04-07-HexFloatConstants.ll 
llvm-svn: 2141
 2002-04-07 08:37:11 +00:00
Chris Lattner
3dc9a2a61f Changes to build successfully with GCC 3.02 
llvm-svn: 1503
 2002-01-20 22:54:45 +00:00
Chris Lattner
eb03e839bc Rename ConstPoolVals.cpp to Constants.cpp 
llvm-svn: 1471
 2001-12-14 16:42:30 +00:00