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80 Commits

Author SHA1 Message Date
Chris Lattner
2e9bb1a88e Move the folding of gep null, 0, 0, 0 to a place where it can be shared and 
enjoyed by all, fixing a fixme.  Add an assert


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11505 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 20:46:13 +00:00
Chris Lattner
40bbeb5d07 Add a new ConstantAggregateZero class, to fix PR239. This makes zero 
initializers for constant structs and arrays take constant space, instead of
space proportinal to the number of elements.  This reduces the memory usage of
the LLVM compiler by hundreds of megabytes when compiling some nasty SPEC95
benchmarks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11470 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 05:53:04 +00:00
Chris Lattner
ca705fa31d ConstantArray::get and ConstantStruct::get now just return pointers to 
'Constant', instead of specific subclass pointers.  In the future, these will
return an instance of ConstantAggregateZero if all of the inputs are zeros.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11467 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 04:14:47 +00:00
Chris Lattner
04d1fb6df9 Remove dependence on return type of ConstantStruct::get 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11466 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 04:07:32 +00:00
Chris Lattner
371064481a Remove dependence on the return type of ConstantArray::get 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11463 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 04:05:58 +00:00
Chris Lattner
aab54da21c Keep a cache of non-abstract null arrays and structs. This speeds up llvm-dis 
from 16.57 -> 13.46s on 129.compress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11462 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 02:46:46 +00:00
Chris Lattner
d21cd809b6 Adjust to the changed StructType interface. In particular, getElementTypes() is gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11228 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-09 04:37:31 +00:00
Chris Lattner
cfdf2419bc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11064 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-01 22:49:04 +00:00
Chris Lattner
90fb19ed2c 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10967 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-23 00:55:21 +00:00
Chris Lattner
7aa162b29b Fix bug in previous checkin: Demorgan would be ashamed of me, I need to 
lay off the crack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10855 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-14 17:51:53 +00:00
Chris Lattner
13cfdea1ef Implement ConstantArray::isString 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10851 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-14 17:06:38 +00:00
Chris Lattner
cbfd406541 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10807 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-12 21:13:12 +00:00
Chris Lattner
6b7b91ab03 Move ConstantHandling.h into lib/VMCore and out of include/llvm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10805 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-12 20:48:11 +00:00
Chris Lattner
d4403b4c3a Eliminate ConstantFoldShiftInstruction reference 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10801 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-12 20:40:42 +00:00
Chris Lattner
69b9e892b6 Fix out of date comment, remove use of ConstantExpr::getShift 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10794 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-12 19:12:58 +00:00
Chris Lattner
3edd3979e1 Make ConstantExpr::get work for shifts as well 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10790 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-12 19:04:55 +00:00
Chris Lattner
31f8499e83 Finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10131 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-21 20:23:48 +00:00
Chris Lattner
48babfa60d The ConstantPointer class is now gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10057 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-17 19:47:21 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
Chris Lattner
29e3b2ba77 Add support for constant expr shifts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9735 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-05 19:53:03 +00:00
Chris Lattner
653de272c2 Fix bug: instcombine/2003-10-23-InstcombineNullFail.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9403 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-23 05:21:48 +00:00
Chris Lattner
389dbfbd8b Fix problem which effected linking apache 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9335 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-21 17:39:59 +00:00
John Criswell
b576c94c15 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 19:43:21 +00:00
Chris Lattner
9eacf8aac8 Add a sanity check for constant expression casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8951 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-07 22:19:19 +00:00
Chris Lattner
ed468e37a1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8853 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-05 00:17:43 +00:00
Chris Lattner
70b06fc717 Minor random speedup: make Constant::getNullValue only call ConstantFOO::get 
once!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8845 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-03 19:34:51 +00:00
Chris Lattner
9ad4dac582 These methods are dead, remove them. Because the bodies will soon be 
ressurected, just ifdef them out for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8840 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-03 18:39:57 +00:00
Chris Lattner
3200219843 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8828 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-02 19:44:40 +00:00
Chris Lattner
23f3a49aec Implement "unsafe" replaceAllUsesWWith stuff for use during type resolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8209 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-29 05:36:46 +00:00
Chris Lattner
2bc065b63a Refactor code to make it useful outside of Constants.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8205 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-29 05:09:37 +00:00
Misha Brukman
ef6a6a69ff The word dependent' has no a'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8030 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-21 22:14:26 +00:00
Chris Lattner
8164d6535a Fix linking bug in xboard 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7952 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-18 16:54:48 +00:00
Chris Lattner
61972242f3 Fix a bug that brian reported 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7428 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-07-30 19:04:37 +00:00
Chris Lattner
c07736a397 Simplify code by using ConstantInt::getRawValue instead of checking to see 
whether the constant is signed or unsigned, then casting


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7252 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-07-23 15:22:26 +00:00
Chris Lattner
037d258319 Fix bug: InstCombine/2003-06-22-ConstantExprCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6857 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-22 20:48:30 +00:00
Chris Lattner
6b0b2db326 Fix bug: Linker/2003-06-02-TypeResolveProblem2.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6699 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-16 12:11:33 +00:00
Chris Lattner
b84388937c * Make assertion message useful 
* Kill dead conditional


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6544 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-02 17:42:47 +00:00
Chris Lattner
bf44ecccdb Fix bug: Linker/2003-06-02-TypeResolveProblem.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6542 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-02 17:25:46 +00:00
Chris Lattner
9608c81d01 Fix problem with last checkin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6328 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-25 16:15:32 +00:00
Chris Lattner
02ec5ede6c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6314 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-23 20:03:32 +00:00
Chris Lattner
f31f583b15 Add support for shift constant expressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6260 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-21 17:49:25 +00:00
Chris Lattner
608f4b0287 Fix bug: Assembler/2003-05-15-AssemblerProblem.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6234 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-15 19:37:21 +00:00
Chris Lattner
3b9922f99c Remove unnecessary casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6201 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-14 17:51:05 +00:00
Chris Lattner
9bc02a4deb Eliminate using declarations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6179 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-13 21:37:02 +00:00
Chris Lattner
d628f6a9a4 Don't build constantexprs that could be folded 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5801 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-17 19:24:48 +00:00
Chris Lattner
fb242b6edc Change the interface to constant expressions to allow automatic folding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5793 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-16 22:40:51 +00:00
Chris Lattner
1680312867 Fix ConstantUInt::isAllOnesValue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5734 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 22:39:02 +00:00
Chris Lattner
27accf7692 Remove #include 
Extend getNullValue to work with struct and array types


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5718 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-06 21:02:18 +00:00
Chris Lattner
34048e2ace - Dramatically simplify the Constant::mutateReferences implementation, 
allowing it to be called on all constant types (structures/arrays)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4160 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-14 03:30:23 +00:00
Chris Lattner
0b16ae209a - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4147 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 19:39:16 +00:00