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458 Commits

Author SHA1 Message Date
Nick Lewycky
46bb763f35 ConstantInt has some getters which return ConstantInt's or ConstantVector's of 
the value splatted into every element. Extend this to getTrue and getFalse which
by providing new overloads that take Types that are either i1 or <N x i1>. Use
it in InstCombine to add vector support to some code, fixing PR8469!

llvm-svn: 127116
 2011-03-06 03:36:19 +00:00
Talin
1d7928c794 Added missing va_end(). 
llvm-svn: 126759
 2011-03-01 18:00:49 +00:00
Talin
753b7ce425 Add an END_WITH_NULL accessor for ConstantStruct. 
llvm-svn: 126714
 2011-02-28 23:53:27 +00:00
Chris Lattner
87de1d1bb8 hoist GlobalValue::removeDeadConstantUsers up to being a method on Constant. 
llvm-svn: 125828
 2011-02-18 04:41:42 +00:00
Nadav Rotem
ad2fd4eada Enhance constant folding of bitcast operations on vectors of floats. 
Add getAllOnesValue of FP numbers to Constants and APFloat.
Add more tests.

llvm-svn: 125776
 2011-02-17 21:22:27 +00:00
Chris Lattner
db204cbe42 convert ConstantVector::get to use ArrayRef. 
llvm-svn: 125537
 2011-02-15 00:14:00 +00:00
Chris Lattner
ee7f7c2494 revert my ConstantVector patch, it seems to have made the llvm-gcc 
builders unhappy.

llvm-svn: 125504
 2011-02-14 18:15:46 +00:00
Chris Lattner
34f32cb4c2 Switch ConstantVector::get to use ArrayRef instead of a pointer+size 
idiom.  Change various clients to simplify their code.

llvm-svn: 125487
 2011-02-14 07:55:32 +00:00
Chris Lattner
46815e1da6 make ConstantExpr::replaceUsesOfWithOnConstant preserve the inbounds 
flag.  Noticed by Jin Gu Kang!

llvm-svn: 125366
 2011-02-11 05:37:21 +00:00
Chris Lattner
9e2e84606d make the constantexpr interfaces for inbounds GEPs follow the same style 
as other constantexpr flags, reducing redundancy.

llvm-svn: 125365
 2011-02-11 05:34:33 +00:00
Chris Lattner
63f1d56458 switch the constantexpr, target folder, and IRBuilder interfaces 
for NSW/NUW binops to follow the pattern of exact binops.  This
allows someone to use Builder.CreateAdd(x, y, "tmp", MaybeNUW);

llvm-svn: 125270
 2011-02-10 07:01:55 +00:00
Chris Lattner
7a5307ec0b refactor ConstantExpr interfaces a bit around "exactness". 
llvm-svn: 125190
 2011-02-09 16:43:07 +00:00
Chris Lattner
b641eb91a3 fix comment change. 
llvm-svn: 125047
 2011-02-07 20:03:14 +00:00
Chris Lattner
2fd09e3397 implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr. 
Factor some code better.

llvm-svn: 125006
 2011-02-07 16:40:21 +00:00
Chris Lattner
7b6a968f5d enhance vmcore to know that udiv's can be exact, and add a trivial 
instcombine xform to exercise this.

Nothing forms exact udivs yet though.  This is progress on PR8862

llvm-svn: 124992
 2011-02-06 21:44:57 +00:00
Duncan Sands
06e82c76ee Have m_One also match constant vectors for which every element is 1. 
llvm-svn: 124655
 2011-02-01 08:39:12 +00:00
Jay Foad
284c5bc9bd Fix indentation. 
llvm-svn: 124375
 2011-01-27 14:44:55 +00:00
Jay Foad
fa61721cf2 Remove casts between Value** and Constant**, which won't work if a 
static_cast from Constant* to Value* has to adjust the "this" pointer.
This is groundwork for PR889.

llvm-svn: 123435
 2011-01-14 08:07:43 +00:00
Benjamin Kramer
612c7225ee Apparently APFloat::getZero doesn't like PPCDoubleDoubles. 
llvm-svn: 120909
 2010-12-04 14:43:08 +00:00
Benjamin Kramer
77faee6ba1 Simplify code. No functionality change. 
llvm-svn: 120907
 2010-12-04 14:22:24 +00:00
Benjamin Kramer
9141603779 Simplify code. No change in functionality. 
llvm-svn: 119908
 2010-11-20 18:43:35 +00:00
Chris Lattner
ecf276b787 remove unions from LLVM IR. They are severely buggy and not 
being actively maintained, improved, or extended.

llvm-svn: 112356
 2010-08-28 04:09:24 +00:00
Oscar Fuentes
4742c01c2a Prefix next' iterator operation with llvm::'. 
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!

llvm-svn: 110029
 2010-08-02 06:00:15 +00:00
Benjamin Kramer
1f47ed839d Preallocate vector, avoid unnecessary vector growth. 
llvm-svn: 109971
 2010-08-01 11:43:26 +00:00
Chris Lattner
d2097ce7ab Fix PR7658, a problem where type refinement can trigger 
constant replacement which was botching its handling of
types.  Use of getType() instead of getRawType() was causing
the type map in constant folding to be updated wrong.

llvm-svn: 108610
 2010-07-17 06:13:52 +00:00
Dan Gohman
b8016872b6 Remove the API compatibility layer which converted add, sub, and mul 
to fadd, fsub, and fmul, when used with a floating-point type. LLVM
has supported the new instructions since 2.6, so it's time to get
on board.

llvm-svn: 102971
 2010-05-03 22:44:19 +00:00
Dan Gohman
377b9cade7 Simplify this code. 
llvm-svn: 101074
 2010-04-12 22:12:29 +00:00
Chris Lattner
542ebce5fa move some method definitions to files that make sense. 
llvm-svn: 99927
 2010-03-30 20:48:48 +00:00
Chris Lattner
f21a1afe81 add support for zero initialized unions, patch by Tim Northover! 
llvm-svn: 99818
 2010-03-29 17:36:02 +00:00
Gabor Greif
df5013e4d8 rename use_const_iterator to const_use_iterator for consistency's sake 
llvm-svn: 99564
 2010-03-25 23:06:16 +00:00
Talin
cd8428c41f replaceUsesOfWithOnConstant implementation for unions. 
llvm-svn: 96616
 2010-02-18 21:43:45 +00:00
Duncan Sands
1b33dd3c83 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Duncan Sands
2acaf3609c Uniformize the names of type predicates: rather than having isFloatTy and 
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
 2010-02-15 16:12:20 +00:00
Chris Lattner
2265d6280b Add support for a union type in LLVM IR. Patch by Talin! 
llvm-svn: 96011
 2010-02-12 20:49:41 +00:00
Duncan Sands
364e9510fb Adding missing methods for creating Add, Mul, Neg and Sub with NUW. 
llvm-svn: 95086
 2010-02-02 12:53:04 +00:00
Chris Lattner
af2e10ddef eliminate a bunch of pointless LLVMContext arguments. 
llvm-svn: 95001
 2010-02-01 20:48:08 +00:00
Dan Gohman
d1d30c5ec2 Add a getNUWMul function. 
llvm-svn: 94982
 2010-02-01 16:38:14 +00:00
Dan Gohman
9026a494ae Add a generalized form of ConstantExpr::getOffsetOf which works for 
array types as well as struct types, and which accepts arbitrary
Constant indicies.  

llvm-svn: 94981
 2010-02-01 16:37:38 +00:00
Dan Gohman
4319402eb0 Make getAlignOf return an i64, for consistency with getSizeOf and 
getOffsetOf, and remove the comment about assuming i8 is byte-aligned,
which is no longer applicable.

llvm-svn: 94738
 2010-01-28 02:43:22 +00:00
Dan Gohman
1eb6920a2f Remove SCEVAllocSizeExpr and SCEVFieldOffsetExpr, and in their place 
use plain SCEVUnknowns with ConstantExpr::getSizeOf and
ConstantExpr::getOffsetOf constants. This eliminates a bunch of
special-case code.

Also add code for pattern-matching these expressions, for clients that
want to recognize them.

Move ScalarEvolution's logic for expanding array and vector sizeof
expressions into an element count times the element size, to expose
the multiplication to subsequent folding, into the regular constant
folder.

llvm-svn: 94737
 2010-01-28 02:15:55 +00:00
Chris Lattner
c2717878e8 fix CastInst::castIsValid to reject aggregate types, fixing PR6153: 
llvm-as: t.ll:1:25: error: invalid cast opcode for cast from '[4 x i8]' to '[1 x i32]'
@x = constant [1 x i32] bitcast ([4 x i8] c"abcd" to [1 x i32])
                        ^

llvm-svn: 94595
 2010-01-26 21:51:43 +00:00
Nick Lewycky
938b8b195c Fix a crasher trying to fold each element in a comparison between two vectors 
if one of the vectors didn't have elements (such as undef). Fixes PR 6096.

Fix an issue in the constant folder where fcmp (<2 x %ty>, <2 x %ty>) would
have <2 x i1> type if constant folding was successful and i1 type if it wasn't.
This exposed a related issue in the bitcode reader.

llvm-svn: 94069
 2010-01-21 07:03:21 +00:00
Benjamin Kramer
0ba7479f2c Move remaining stuff to the isInteger predicate. 
llvm-svn: 92771
 2010-01-05 21:05:54 +00:00
Benjamin Kramer
c233521d45 Convert a ton of simple integer type equality tests to the new predicate. 
llvm-svn: 92760
 2010-01-05 20:07:06 +00:00
David Greene
8637fd7d59 Change errs() to dbgs(). 
llvm-svn: 92650
 2010-01-05 01:29:19 +00:00
Chris Lattner
7246a69d2b differences between two blockaddress's don't cause a 
global variable initializer to require relocations.

llvm-svn: 92450
 2010-01-03 18:09:40 +00:00
Chris Lattner
f3520d2c35 remove some misleading comments. 
llvm-svn: 92311
 2009-12-30 20:25:09 +00:00
Chris Lattner
2c82be93e6 add a layer of accessors around the Value::SubClassData member, and use 
a convention (shadowing the setter with private forwarding function) to
prevent subclasses from accidentally using it.

This exposed some bogosity in ConstantExprs, which was propaging the
opcode of the constant expr into the NUW/NSW/Exact field in the
getWithOperands/getWithOperandReplaced methods.

llvm-svn: 92239
 2009-12-29 02:14:09 +00:00
Dan Gohman
3ceb7c0c47 Add utility routines for NSW multiply. 
llvm-svn: 91664
 2009-12-18 03:10:26 +00:00
Dan Gohman
6bb50740f4 Add utility routines for creating integer negation operators with NSW set. 
Integer negation only overflows with INT_MIN, but that's an important case.

llvm-svn: 91662
 2009-12-18 02:58:50 +00:00