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457 Commits

Author SHA1 Message Date
Talin
de422beba4 Added missing va_end(). 
llvm-svn: 126759
 2011-03-01 18:00:49 +00:00
Talin
3a0a30d44d Add an END_WITH_NULL accessor for ConstantStruct. 
llvm-svn: 126714
 2011-02-28 23:53:27 +00:00
Chris Lattner
8488640da7 hoist GlobalValue::removeDeadConstantUsers up to being a method on Constant. 
llvm-svn: 125828
 2011-02-18 04:41:42 +00:00
Nadav Rotem
7cc6d12ad0 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
69229316aa convert ConstantVector::get to use ArrayRef. 
llvm-svn: 125537
 2011-02-15 00:14:00 +00:00
Chris Lattner
34442e6ebf 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
d9f5b88548 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
603af18826 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
94c8d2941f 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
e9b4ad7391 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
0d75eac350 refactor ConstantExpr interfaces a bit around "exactness". 
llvm-svn: 125190
 2011-02-09 16:43:07 +00:00
Chris Lattner
e17322b3b7 fix comment change. 
llvm-svn: 125047
 2011-02-07 20:03:14 +00:00
Chris Lattner
a676c0fc77 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
35315d065b 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
cf0ff030a8 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
9f32cfd35e Fix indentation. 
llvm-svn: 124375
 2011-01-27 14:44:55 +00:00
Jay Foad
1d4a8fe156 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
6f88fcb16b Apparently APFloat::getZero doesn't like PPCDoubleDoubles. 
llvm-svn: 120909
 2010-12-04 14:43:08 +00:00
Benjamin Kramer
8ceebfaa04 Simplify code. No functionality change. 
llvm-svn: 120907
 2010-12-04 14:22:24 +00:00
Benjamin Kramer
ddd1b7b801 Simplify code. No change in functionality. 
llvm-svn: 119908
 2010-11-20 18:43:35 +00:00
Chris Lattner
13ee795c42 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
40b31ad3ee 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
3d4af4e91e Preallocate vector, avoid unnecessary vector growth. 
llvm-svn: 109971
 2010-08-01 11:43:26 +00:00
Chris Lattner
718da70ca2 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
a2414ea190 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
3cdcc3f728 Simplify this code. 
llvm-svn: 101074
 2010-04-12 22:12:29 +00:00
Chris Lattner
a3b94ba2c5 move some method definitions to files that make sense. 
llvm-svn: 99927
 2010-03-30 20:48:48 +00:00
Chris Lattner
61f3bd6772 add support for zero initialized unions, patch by Tim Northover! 
llvm-svn: 99818
 2010-03-29 17:36:02 +00:00
Gabor Greif
c78d720f02 rename use_const_iterator to const_use_iterator for consistency's sake 
llvm-svn: 99564
 2010-03-25 23:06:16 +00:00
Talin
1feba3c980 replaceUsesOfWithOnConstant implementation for unions. 
llvm-svn: 96616
 2010-02-18 21:43:45 +00:00
Duncan Sands
19d0b47b1f 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
9dff9bec31 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
392be58cad 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
fa5f5965de 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
f5edeebd8c eliminate a bunch of pointless LLVMContext arguments. 
llvm-svn: 95001
 2010-02-01 20:48:08 +00:00
Dan Gohman
de047f2051 Add a getNUWMul function. 
llvm-svn: 94982
 2010-02-01 16:38:14 +00:00
Dan Gohman
ede94e6850 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
a9be73929f 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
cf9138307d 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
37bc78a5e2 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
9e26c1cc0c 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
d2564e3afb Move remaining stuff to the isInteger predicate. 
llvm-svn: 92771
 2010-01-05 21:05:54 +00:00
Benjamin Kramer
a81a6dff0d 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
1e27a13838 Change errs() to dbgs(). 
llvm-svn: 92650
 2010-01-05 01:29:19 +00:00
Chris Lattner
a7cfc43af8 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
09660c9b06 remove some misleading comments. 
llvm-svn: 92311
 2009-12-30 20:25:09 +00:00
Chris Lattner
b9c8651b8c 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
4e3b29e309 Add utility routines for NSW multiply. 
llvm-svn: 91664
 2009-12-18 03:10:26 +00:00
Dan Gohman
4ab4420d7a 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
Chris Lattner
ff09559a8f whitespace cleanup 
llvm-svn: 90834
 2009-12-08 05:31:46 +00:00