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871 Commits

Author SHA1 Message Date
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Dan Gohman
4224373cc8 Make firstEightPowers const. 
llvm-svn: 50975
 2008-05-12 16:38:14 +00:00
Dan Gohman
a84b75df17 Remove uses of llvm/System/IncludeFile.h that are no longer needed. 
llvm-svn: 50695
 2008-05-06 01:32:53 +00:00
Evan Cheng
d9353009b7 Fix more -Wshorten-64-to-32 warnings. 
llvm-svn: 50659
 2008-05-05 18:30:58 +00:00
Evan Cheng
c2d34f03bf Suppress -Wshorten-64-to-32 warnings for 64-bit hosts. 
llvm-svn: 50590
 2008-05-02 21:15:08 +00:00
Gabor Greif
134707f8e8 fcntl.h is pretty standard on unix (without the sys/) 
llvm-svn: 50475
 2008-04-30 08:53:22 +00:00
Dan Gohman
e921f90c15 Fix a pointer-arithmetic bug that caused 64-bit host pointer values to 
be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.

llvm-svn: 50372
 2008-04-28 20:25:15 +00:00
Ted Kremenek
f1304a3762 Bug fix in BumpPtrAllocator: don't assume that all objects have the same alignment. "Bump" of the pointer for the next allocated object to be of the specified alignment. 
llvm-svn: 50362
 2008-04-28 17:58:07 +00:00
Mikhail Glushenkov
4c358b3125 Add support for response files to the CommandLine library. 
llvm-svn: 50355
 2008-04-28 16:44:25 +00:00
Dan Gohman
6054efc488 Make these variables static. 
llvm-svn: 50196
 2008-04-23 23:15:23 +00:00
Dale Johannesen
675fca3ee1 Check that APFloat::convert is not trying to target 
ppc long double, which doesn't work.

This may break some stuff temporarily, but I want to
avoid the propagation of code that assumes this works.

llvm-svn: 49983
 2008-04-20 01:34:03 +00:00
Dan Gohman
d0162df4c1 Use gv's --spartan option, which trades away an extra row of UI buttons 
for more space for displaying the graph.

llvm-svn: 49730
 2008-04-15 17:27:05 +00:00
Dan Gohman
26c2127be9 Make several symbols static. 
llvm-svn: 49496
 2008-04-10 21:11:47 +00:00
Bill Wendling
fb7564e94c Fix compilation errors on MSVC. Patch by Argiris Kirtzidis! 
llvm-svn: 49055
 2008-04-01 22:09:20 +00:00
Chris Lattner
d141d16ed7 Change the MemoryBuffer::getFile* methods to take just a pointer to the 
start of a filename, not a filename+length.  All clients can produce a
null terminated name, and the system api's require null terminated 
strings anyway.

llvm-svn: 49041
 2008-04-01 18:04:03 +00:00
Chris Lattner
7f88d9043f Reimplement MemoryBuffer::getFile with three enhancements: 
1) stop using MappedFile.
2) if profitable use the sys::path::MapInFilePages api to
   read the file.
3) otherwise fallback to read.

When sys::path::MapInFilePages is implemented, this provides
several benefits:

#1: this avoids fragmenting memory for small files.
#2: this avoids extraneous stat calls when the file size is known.
#3: this only keeps the file descriptor open while reading the 
    file, not for the duration of the lifetime of the memory 
    buffer.  This fixes a serious clang FD 'leak' problem.

I believe that this will work on a win32 machine, but I don't have
one to test on.  I'd appreciate it if someone could check.

llvm-svn: 49031
 2008-04-01 06:05:21 +00:00
Chris Lattner
b29e4e90bc Remove the MappedFile::charBase member, rename base -> getBase() and 
make getBase() return a const-correct pointer.

llvm-svn: 49025
 2008-04-01 03:40:53 +00:00
Chris Lattner
c88457a8b2 Change DiffFilesWithTolerance to be written in terms of MemoryBuffer, 
not an mmapped file.  This more closely matches its requirements and
provides an implicitly null terminated buffer, something this
routine had to emulate itself before.

llvm-svn: 49024
 2008-04-01 03:39:49 +00:00
Chris Lattner
f2309c208a Remove MappedFile support for mapping files for write and exec 
and shared.  This complicates the design, is not used, and probably
doesn't even work.

llvm-svn: 49022
 2008-04-01 03:10:22 +00:00
Dan Gohman
2b96ce84aa Add explicit keywords. 
llvm-svn: 48801
 2008-03-25 22:06:05 +00:00
Dan Gohman
22002efa15 A quick nm audit turned up several fixed tables and objects that were 
marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800
 2008-03-25 21:45:14 +00:00
Bill Wendling
301783caf7 Add assert for non-hexadecimal radixes. 
llvm-svn: 48421
 2008-03-16 20:05:52 +00:00
Evan Cheng
41a16a1347 Fix a typo. It's causing consumer-typeset to miscompile. Perhaps more. 
llvm-svn: 48035
 2008-03-07 22:39:49 +00:00
Dan Gohman
2b8022a8c6 Add support to APInt for shift and rotate operations with APInt 
instead of uint32_t for the shift/rotate count operand type.

llvm-svn: 47741
 2008-02-29 01:40:47 +00:00
Dan Gohman
45a26a462f Add a method to APFloat to convert directly from APInt. 
llvm-svn: 47738
 2008-02-29 01:26:11 +00:00
Dan Gohman
8d536a33ff Fix a bug that caused opt and other tools to silently ignore 
invalid command-line options.

llvm-svn: 47523
 2008-02-23 01:55:25 +00:00
Dan Gohman
48d03d5a2d Add explicit keywords. 
llvm-svn: 47382
 2008-02-20 16:44:09 +00:00
Anton Korobeynikov
9c87c6526e Add 'sink' cmdline option. Patch by Mikhail Glushenkov! 
llvm-svn: 47377
 2008-02-20 12:38:07 +00:00
Anton Korobeynikov
0c5e186924 Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
llvm-svn: 47367
 2008-02-20 11:08:44 +00:00
Ted Kremenek
0449b1da95 Fixed bug in APInt::Profile() where the BitWidth field was not included in the 
profile of the APSInt object. This caused unexpected Profile collisions where
none should have occurred.

llvm-svn: 47338
 2008-02-19 20:50:41 +00:00
Ted Kremenek
83e9c3ba5c Fixed bug in FoldingSetIteratorImpl where we did not correctly check if 
we had reached the "fake bucket" after the last bucket, allowing the iterator
in some cases to run off the end of the hashtable.

llvm-svn: 47178
 2008-02-15 21:12:46 +00:00
Dan Gohman
9ca30afc39 Fix a warning about comparison between signed and unsigned, 
being consistent with the rest of the APInt implementation.

llvm-svn: 47138
 2008-02-14 22:38:45 +00:00
Dan Gohman
d22101a970 Add countTrailingOnes member functions to APInt. 
llvm-svn: 47086
 2008-02-13 21:11:05 +00:00
Ted Kremenek
f06b7ac532 Added "Profile" method to APFloat for use with FoldingSet. 
Added member template "Add" to FoldingSetNodeID that allows "adding" arbitrary
objects to a profile via dispatch to FoldingSetTrait<T>::Profile().

Removed FoldingSetNodeID::AddAPFloat and FoldingSetNodeID::APInt, as their
functionality is now replaced using the above mentioned member template.

llvm-svn: 46957
 2008-02-11 17:24:50 +00:00
Dan Gohman
011075cfdb Add support to FoldingSet for hashing APInt objects. 
llvm-svn: 46833
 2008-02-06 23:09:15 +00:00
Ted Kremenek
6dab41ed32 Added "bucket_iterators" to FoldingSet. Bucket iterators allow iteration 
over all the nodes in a particular bucket.

llvm-svn: 46716
 2008-02-04 21:11:17 +00:00
Ted Kremenek
c84b3400b2 Fixed 80 col. violation. 
llvm-svn: 46709
 2008-02-04 17:14:20 +00:00
Dale Johannesen
c19b8c41c6 Chris' change to print an approximation to long doubles 
exposed a bug in APFloat's long double->double conversion of
NaNs.  Broke several things in the ieee part of gcc testsuite.

llvm-svn: 46617
 2008-01-31 18:34:01 +00:00
Dan Gohman
daa38f69cf Remove top-level const qualifiers from casts, avoiding associated 
compiler warnings.

llvm-svn: 46509
 2008-01-29 12:08:20 +00:00
Lauro Ramos Venancio
ad2a3eb416 Simplify the code and fix a typo. 
llvm-svn: 46458
 2008-01-28 20:02:51 +00:00
Lauro Ramos Venancio
947e17ae75 Fix fpcmp infinite loop when comparing "29-266" with "29-268". 
llvm-svn: 46455
 2008-01-28 18:23:23 +00:00
Ted Kremenek
dce31b9785 Added FoldingSet style 'profiling' support for APSInt. 
llvm-svn: 46189
 2008-01-19 04:31:12 +00:00
Ted Kremenek
702d3b8f37 Added FoldingSet style 'profiling' support for APInt. 
llvm-svn: 46188
 2008-01-19 04:23:33 +00:00
Ted Kremenek
a0105180ad Made 'FoldingSetNodeID' a proper class instead of a nested class in 
'FoldingSetNodeImpl' (previously 'FoldingSetNodeID' was a typedef of
'FoldingSetNodeImpl::NodeID').

Why?  Clients can now easily forward declare 'FoldingSetNodeID' without having
to include FoldingSet.h.

llvm-svn: 46187
 2008-01-19 04:22:50 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Chris Lattner
8193d4af33 remove attribution from lib Makefiles. 
llvm-svn: 45415
 2007-12-29 20:09:26 +00:00
Anton Korobeynikov
a0113f6c70 Cygwin defines uint32_t as unsigned long. Unbreak call to std::min in this case 
llvm-svn: 45342
 2007-12-24 11:16:47 +00:00
Reid Spencer
3a83a29e21 Don't have APInt.cpp depend upon DerivedTypes.h. This helps with splitting the 
Support libraries separately into their own module.

llvm-svn: 44852
 2007-12-11 06:53:58 +00:00
Chris Lattner
1fe38f35c1 proper #include order. 
llvm-svn: 44707
 2007-12-08 19:00:03 +00:00
Gordon Henriksen
e187dc4bfa Adding a StringPool data structure, which GC will use. 
llvm-svn: 44705
 2007-12-08 17:07:47 +00:00
Neil Booth
054a756682 Prior commit updated wrong if, apologies. 
llvm-svn: 44614
 2007-12-05 13:06:04 +00:00
Neil Booth
b5afbd8e5a Handle zero correctly. 
llvm-svn: 44613
 2007-12-05 13:01:24 +00:00
Dale Johannesen
15712dc45a Handle 0 correctly in string->APFloat conversion. 
llvm-svn: 44594
 2007-12-05 01:10:19 +00:00
Chris Lattner
36854c740d Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros. 
llvm-svn: 44296
 2007-11-23 22:42:31 +00:00
Chris Lattner
57a40dc2ad Fix APInt::countTrailingZeros to return BitWidth if the input is zero instead of returning some random large number. 
llvm-svn: 44294
 2007-11-23 22:36:25 +00:00
Chris Lattner
56d872fcbb Fix the Linker testcase regressions, by making MemoryBuffer::getFileOrSTDIN return 
a valid but empty buffer if stdin is empty.

llvm-svn: 44219
 2007-11-18 18:52:28 +00:00
Dale Johannesen
ea47b8b77d Fix denormal check in float->APInt conversion. 
PR 1804.

llvm-svn: 44201
 2007-11-17 01:02:27 +00:00
Chris Lattner
edf6668dda make smallptrset more const and type correct, which caught a few 
minor bugs.

llvm-svn: 43782
 2007-11-06 22:12:43 +00:00
Neil Booth
cd1d243989 Remove some unnecessary C-style statics. 
Restore an assertion that arithmetic can be performed on this format.

llvm-svn: 43638
 2007-11-02 15:10:05 +00:00
Neil Booth
7eeb095d37 Add back line whose removal somehow crept into prior patch 
llvm-svn: 43627
 2007-11-01 22:51:07 +00:00
Neil Booth
d04447b7ae When converting to integer, do bit manipulations in the destination 
memory rather than in a copy of the APFloat.  This avoids problems
when the destination is wider than our significand and is cleaner.

Also provide deterministic values in all cases where conversion
fails, namely zero for NaNs and the minimal or maximal value
respectively for underflow or overflow.

llvm-svn: 43626
 2007-11-01 22:43:37 +00:00
Hartmut Kaiser
48b3098b43 Clarified operator precedence. 
Silenced VC++ warning.

llvm-svn: 43372
 2007-10-25 23:15:31 +00:00
Chris Lattner
cee5f18fb6 This requires rtti info because tblgen uses commandline, 
and tblgen requires rtti.

llvm-svn: 43127
 2007-10-18 15:57:29 +00:00
Neil Booth
e14f19eda6 Fast-track obviously over-large and over-small exponents during decimal-> 
integer conversion.  In some such cases this makes us one or two orders
of magnitude faster than NetBSD's libc.  Glibc seems to have a similar
fast path.

Also, tighten up some upper bounds to save a bit of memory.

llvm-svn: 42984
 2007-10-15 15:00:55 +00:00
Neil Booth
1463947f03 Consolidate logic for creating NaNs. Silence compiler warning. 
llvm-svn: 42966
 2007-10-14 10:39:51 +00:00
Neil Booth
138d8ef4a7 Whether arithmetic is supported is a property of the semantics. Make it 
so, and clean up the checks by putting them in an inline function.

llvm-svn: 42965
 2007-10-14 10:29:28 +00:00
Neil Booth
a352eb14cd Separate out parsing of decimal number. Use this to only allocate 
memory for the significand once up-front.  Also ignore insignificant
trailing zeroes; this saves unnecessary multiplications later.

llvm-svn: 42964
 2007-10-14 10:16:12 +00:00
Neil Booth
f3582ac0e0 If the power of 5 is exact, and the reciprocal exact, the error is zero not one half-ulps. This prevents an infinite loop in rare cases. 
llvm-svn: 42950
 2007-10-13 03:34:08 +00:00
Neil Booth
fb373da5fd Remove duplicate comment. 
llvm-svn: 42913
 2007-10-12 16:05:57 +00:00
Neil Booth
078f455d15 Implement correctly-rounded decimal->binary conversion, i.e. conversion 
from user input strings.

Such conversions are more intricate and subtle than they may appear;
it is unlikely I have got it completely right first time.  I would
appreciate being informed of any bugs and incorrect roundings you
might discover.

llvm-svn: 42912
 2007-10-12 16:02:31 +00:00
Neil Booth
4a0b91bebe Remove a field that was never used. 
llvm-svn: 42911
 2007-10-12 15:35:10 +00:00
Neil Booth
9b83d8be07 If we're trying to be arbitrary precision, unsigned char clearly won't cut it. Needed for dec->bin conversions. 
llvm-svn: 42910
 2007-10-12 15:33:27 +00:00
Neil Booth
39cc673e61 Don't attempt to mask no bits 
llvm-svn: 42909
 2007-10-12 15:31:31 +00:00
Dale Johannesen
0ee2a2fb59 Next PPC long double bits. First cut at constants. 
No compile-time support for constant operations yet,
just format transformations.  Make readers and
writers work.  Split constants into 2 doubles in
Legalize.

llvm-svn: 42865
 2007-10-11 18:07:22 +00:00
Chris Lattner
a65ec649fd Add new MemoryBuffer::getMemBufferCopy method. 
llvm-svn: 42815
 2007-10-09 21:46:38 +00:00
Dan Gohman
2fb0a249d7 Pass argc by value, not by reference, since it isn't modified. 
llvm-svn: 42788
 2007-10-09 16:04:57 +00:00
Chris Lattner
19cb9fa4cc Change a #include into a forward declaration 
llvm-svn: 42781
 2007-10-09 03:40:30 +00:00
Dan Gohman
2e8245a376 Move the space in overview output for commands out of each of the 
commands and into the common code.

llvm-svn: 42752
 2007-10-08 15:45:12 +00:00
Neil Booth
e46d6dbd99 Use APInt::tcExtract. It's cleaner, and works :) 
llvm-svn: 42746
 2007-10-08 14:39:42 +00:00
Neil Booth
f003f9bf1a Add a new function tcExtract for extracting a bignum from an 
arbitrary range of bits embedded in the middle of another bignum.
This kind of operation is desirable in many cases of software
floating point, e.g. converting bignum integers to floating point
numbers of fixed precision (you want to extract the precision most
significant bits).

Elsewhere, add an assertion, and exit the shift functions early if
the shift count is zero.

llvm-svn: 42745
 2007-10-08 13:47:12 +00:00
Neil Booth
6f9602ac12 Add back convertFromSignExtendedInteger. 
llvm-svn: 42735
 2007-10-07 12:15:41 +00:00
Neil Booth
ac998332c3 Now that convertFromUnsignedParts has a sane, constant interface, 
convertFromZeroExtendedInteger can be simplified as it doesn't need
to make a copy of the source bignum.

llvm-svn: 42734
 2007-10-07 12:10:57 +00:00
Neil Booth
db4dbedfea Reimplement convertFromUnsignedInteger so it is passed a const bignum. 
It used to modify its argument in-place.

This interface is saner and the implementation more efficient.  It will
be needed for decimal->binary conversion.

llvm-svn: 42733
 2007-10-07 12:07:53 +00:00
Neil Booth
6e01c5df37 convertFromInteger, as originally written, expected sign-extended 
input.  APInt unfortunately zero-extends signed integers, so Dale
modified the function to expect zero-extended input.  Make this
assumption explicit in the function name.

llvm-svn: 42732
 2007-10-07 11:45:55 +00:00
Neil Booth
726126f4d6 combineLostFractions does not need to be a member function 
llvm-svn: 42729
 2007-10-07 08:51:21 +00:00
Neil Booth
beba899ff0 Cleaner, more general exponent output. 
llvm-svn: 42690
 2007-10-06 07:29:25 +00:00
Chris Lattner
a1de966c80 silence warnings in no-assert build. 
llvm-svn: 42687
 2007-10-06 06:13:42 +00:00
Neil Booth
0613ec4ee6 Fix and clarify some comments. 
llvm-svn: 42670
 2007-10-06 00:43:45 +00:00
Neil Booth
2c4419d71b Generalize tcFullMultiply so that the operands can be of differing 
part widths.  Also, return the number of parts actually required to
hold the result's value.
Remove an over-cautious condition from rounding of float->hex conversion.

llvm-svn: 42669
 2007-10-06 00:24:48 +00:00
Neil Booth
2dc065755d Add APFloat -> hexadecimal string conversion, as per %a and %A in C99. 
Useful for diagnostics and debugging.

llvm-svn: 42598
 2007-10-03 22:26:02 +00:00
Chris Lattner
de233151af Add initial iterator support for folding set. 
llvm-svn: 42589
 2007-10-03 21:12:09 +00:00
Chris Lattner
8955442092 Simplify implementation of the FoldingSet circular list, a necessary step 
to giving it iterators.

llvm-svn: 42586
 2007-10-03 20:45:43 +00:00
Neil Booth
1e709921bc Tweak RoundAwayFromZero the bit number below which is truncated, and make 
it const.

Preparation for APFloat -> hexadecimal string conversion.

llvm-svn: 42576
 2007-10-03 15:16:41 +00:00
Dale Johannesen
4b203b8e44 Simplify and fix signed int -> FP conversions. 
llvm-svn: 42483
 2007-09-30 18:17:01 +00:00
Neil Booth
3b53530d78 Whitespace and compiler warning cleanup. 
llvm-svn: 42373
 2007-09-26 21:33:42 +00:00
Dale Johannesen
bc41438bab Make APFloat->int conversions deterministic even in 
cases with undefined behavior.

llvm-svn: 42328
 2007-09-25 23:07:07 +00:00
Dale Johannesen
ee2f3359f4 Fix long double<->shorter FP type conversions 
of zero, infinity, and NaNs.

llvm-svn: 42298
 2007-09-25 17:25:00 +00:00
Neil Booth
8cb885c389 Handle storage complications of float->float conversions. 
llvm-svn: 42220
 2007-09-22 02:56:19 +00:00
Dale Johannesen
c7279629cc Change APFloat::convertFromInteger to take the incoming 
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers.  Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.

llvm-svn: 42210
 2007-09-21 22:09:37 +00:00
Dale Johannesen
346a949bd8 Fix PR 1688. See comments there. 
llvm-svn: 42181
 2007-09-20 23:47:58 +00:00
Devang Patel
547d418b8e Do not hide APInt::dump() inside #ifndef NDEBUG. 
llvm-svn: 42068
 2007-09-17 22:24:00 +00:00
Chris Lattner
bb109aed3d fix a gcc warning: comparison between signed and unsigned integer expressions 
llvm-svn: 41972
 2007-09-14 22:57:00 +00:00
Dale Johannesen
575bd6070a Remove the assumption that FP's are either float or 
double from some of the many places in the optimizers
it appears, and do something reasonable with x86
long double.
Make APInt::dump() public, remove newline, use it to
dump ConstantSDNode's.
Allow APFloats in FoldingSet.
Expand X86 backend handling of long doubles (conversions
to/from int, mostly).

llvm-svn: 41967
 2007-09-14 22:26:36 +00:00
Dan Gohman
1c9bf0bfb9 And an FoldingSetImpl::NodeID::AddInteger overload for int64_t, to avoid 
ambiguity.

llvm-svn: 41960
 2007-09-14 20:48:42 +00:00
Dan Gohman
53119779c2 Remove spurious consts. This fixes warnings with compilers that 
are strict about such things.

llvm-svn: 41956
 2007-09-14 20:08:19 +00:00
Dale Johannesen
4b03ae1ff5 Compensate for partCount change in Bogus definition 
(could break hash table in ConstantFP)

llvm-svn: 41874
 2007-09-12 01:22:05 +00:00
Dale Johannesen
7bc3969cea Add APInt interfaces to APFloat (allows directly 
access to bits).  Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling 
(untested, probably does not work).

llvm-svn: 41858
 2007-09-11 18:32:33 +00:00
Evan Cheng
e6c68e7668 Smarter Reset(). Instead of deallocating all memory regions and reallocate the 
first region, just deallocate all but the last region in the list.

llvm-svn: 41782
 2007-09-08 00:02:17 +00:00
Evan Cheng
5977c55f5d Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor. 
llvm-svn: 41728
 2007-09-05 21:41:34 +00:00
Dale Johannesen
1d92d23a89 Fix mod so it actually works. Fix conversions to 
native types to handle denormals correctly.

llvm-svn: 41726
 2007-09-05 20:39:49 +00:00
Dale Johannesen
b336f6207c Oops, should be part of 41664; won't work very well without this piece. 
llvm-svn: 41665
 2007-08-31 23:35:31 +00:00
Dale Johannesen
81d6ecb886 Enhance APFloat to retain bits of NaNs (fixes oggenc). 
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.

llvm-svn: 41632
 2007-08-31 04:03:46 +00:00
Dale Johannesen
e91a908971 Change LegalFPImmediates to use APFloat. 
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.

llvm-svn: 41587
 2007-08-30 00:23:21 +00:00
Dale Johannesen
9ec1e28e79 Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual. 
This means backing out the preceding change to Constants.cpp, alas.

llvm-svn: 41378
 2007-08-24 22:09:56 +00:00
Dale Johannesen
0aaabb858b Revised per review feedback from previous patch. 
llvm-svn: 41353
 2007-08-24 05:08:11 +00:00
Chris Lattner
91df26be0f silence some warnings in an optimized build. 
llvm-svn: 41352
 2007-08-24 03:02:34 +00:00
Dale Johannesen
a3ab055b9d Change internal representation of ConstantFP to use APFloat. 
Interface to rest of the compiler unchanged, as yet.

llvm-svn: 41348
 2007-08-24 00:56:33 +00:00
Chris Lattner
742b745b0c rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned() 
Add an APSInt::toString() method.

llvm-svn: 41309
 2007-08-23 05:15:32 +00:00
Chris Lattner
401698e8b5 initial checkin of Neil's APFloat work. 
llvm-svn: 41203
 2007-08-20 22:49:32 +00:00
Chris Lattner
4c6c787315 This adds a bunch of static functions that implement unsigned 
two's complement bignum arithmetic.  They could be used to
implement much of APInt, but the idea is they are enough to
implement APFloat as well, which the current APInt interface
is not suited for.

Patch by Neil Booth!

llvm-svn: 41124
 2007-08-16 15:56:55 +00:00
Anton Korobeynikov
958dcad32d Properly use const qualifiers 
llvm-svn: 41111
 2007-08-15 21:12:30 +00:00
Reid Spencer
e8aa5a5832 Make getSTDIN return null if the standard input is empty, as the header file 
documentation implies and as its uses depend.

llvm-svn: 40939
 2007-08-08 20:01:58 +00:00
Reid Spencer
0de4350acf Escape some escapes that confuse doxygen. 
llvm-svn: 40850
 2007-08-05 19:33:11 +00:00
Chris Lattner
10db9656ba When clearing a SmallPtrSet, if the set had a huge capacity, but the 
contents of the set were small, deallocate and shrink the set.  This
avoids having us to memset as much data, significantly speeding up
some pathological cases.  For example, this speeds up the verifier
from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a 
release build.

llvm-svn: 40837
 2007-08-05 07:32:14 +00:00
Owen Anderson
997b15d967 Allow SmallPtrSet to hold pointers to const data. 
llvm-svn: 40556
 2007-07-27 18:07:02 +00:00
Owen Anderson
f22326ad3d Make the copy constructor of SmallPtrSet much faster. 
llvm-svn: 40474
 2007-07-24 21:31:23 +00:00
Owen Anderson
21e3bd1cdc Remember to free the heap allocated array if we're not going to use it. 
llvm-svn: 40043
 2007-07-19 06:45:33 +00:00
Owen Anderson
03b56ad400 Fix an issue where assignments that caused a SmallPtrSet to become non-small 
would result in calling realloc() on a null pointer.  Instead, if we encounter
this situation, make a normal call to malloc().

llvm-svn: 40014
 2007-07-18 19:54:15 +00:00
Reid Spencer
3dd7b1699b Unbreak the build by putting calls to free into the implementation file and 
having that implementation file #include <cstdlib>.

llvm-svn: 39952
 2007-07-17 02:16:12 +00:00
Owen Anderson
f01c29815d Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
llvm-svn: 39926
 2007-07-16 21:27:44 +00:00
Nick Lewycky
701e227136 Clarify the language. Pointed out by Duncan Sands. 
llvm-svn: 39857
 2007-07-14 17:41:03 +00:00
Nick Lewycky
42e8a060a0 Add alternate ConstantRange intersection algorithm. 
llvm-svn: 39851
 2007-07-14 02:51:34 +00:00
Owen Anderson
31bda05073 Make the assignment operator for SmallPtrSet much faster for normal cases. 
llvm-svn: 38474
 2007-07-09 22:27:20 +00:00
Owen Anderson
e48ed4f7a8 Make the assignment operator for SmallPtrSet return a reference, and fix a long-standing bug in the copy 
ctor while I'm at it.

Thanks to Chris Lattner for help with this patch.

llvm-svn: 38470
 2007-07-09 20:59:01 +00:00
Owen Anderson
e12cbdb0be Fix an error in the assignment operator that was causing an infinite loop in GVNPRE.cpp. 
Patch by Chis Lattner.

llvm-svn: 38467
 2007-07-09 18:51:15 +00:00
Chris Lattner
97ba0c99ed implement operator= for smallptrset 
llvm-svn: 38460
 2007-07-09 16:54:03 +00:00
Gabor Greif
5f705671e4 Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
 2007-07-05 17:07:56 +00:00
Nick Lewycky
61fa7b9861 Fix undefined behaviour reported by the new --enable-expensive-checks option. 
llvm-svn: 37829
 2007-07-01 03:06:30 +00:00
Owen Anderson
41515dcd4b Fix a bug in SmallPtrSet that was causing GVNPRE to enter an infinite loop. 
llvm-svn: 37697
 2007-06-22 00:11:18 +00:00
Chris Lattner
3ac68a90f2 Two changes: 
1. Make SmallPtrSet::erase faster in the small case by replacing a memmove
    with a pointer copy.
 2. Fix a bug where the null terminator at the end of the array in the small
    case was not copied

llvm-svn: 37696
 2007-06-21 23:23:32 +00:00
Nick Lewycky
e03bd9ddbb Fix edge case. 
llvm-svn: 37532
 2007-06-09 04:20:33 +00:00
Dale Johannesen
fe0fe14411 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285
 2007-05-22 17:14:46 +00:00
Reid Spencer
fe3c213178 Fix an assertion introduced by my last change to the toString method. We 
can't use getZExtValue() to extract the low order bits for each digit.
Instead, we need to access the low order word directly.

llvm-svn: 37242
 2007-05-19 00:29:55 +00:00
Reid Spencer
fe3fc94a44 Get rid of leading zeros in the output of toString. 
llvm-svn: 37175
 2007-05-17 19:23:02 +00:00
Reid Spencer
39e03f53ca For lshr by 0 bits, just return *this as a short cut. This also prevents 
undefined behavior when the width > 64 bits.

llvm-svn: 37153
 2007-05-17 06:26:29 +00:00
Reid Spencer
1ec1e07949 Fix a bug in the "fromString" method where radix 2,8 and 16 values were 
not being generated correctly because the shl operator does not mutate its
object but returns a new value. Also, make the distinction between radix
16 and the others more clear.

llvm-svn: 37111
 2007-05-16 19:18:22 +00:00
Reid Spencer
3dab764309 Make the results for the rotate functions correct when rotateAmt == 0. 
llvm-svn: 37026
 2007-05-14 00:15:28 +00:00
Reid Spencer
a17d02ad08 Add some things needed by the llvm-gcc version supporting bit accurate integer 
types:
1. Functions to compute div/rem at the same time.
2. Further assurance that an APInt with 0 bitwidth cannot be constructed.
3. Left and right rotate operations.
4. An exactLogBase2 function which requires an exact power of two or it
   returns -1.

llvm-svn: 37025
 2007-05-13 23:44:59 +00:00
Reid Spencer
8c2e0f85eb Fix shl to produce the correct result when the bitwidth is > 64 and the 
shift amount is 0. Previously this code would do a lshr by the bit width
which can lead to incorrect results.

llvm-svn: 37010
 2007-05-12 18:01:57 +00:00
Chris Lattner
b601311b07 fix a memory leak 
llvm-svn: 36981
 2007-05-11 00:43:26 +00:00
Jeff Cohen
2e8263c013 Unbreak VC++ build. 
llvm-svn: 36901
 2007-05-07 15:21:46 +00:00
Chris Lattner
112d26a164 Enhance MemoryBuffer to return error messages in strings if they occur. 
llvm-svn: 36899
 2007-05-06 23:32:36 +00:00
Chris Lattner
4dca43cc6d remove this file for now, we can bring it back from cvs if we need it in 
the future (and integrate it with membuffer, etc)

llvm-svn: 36876
 2007-05-06 19:10:47 +00:00
Chris Lattner
71eb8d5e89 remove libbzip2, it is dead 
llvm-svn: 36875
 2007-05-06 19:05:34 +00:00
Chris Lattner
5bd1b5b32d don't build bzip2 for now 
llvm-svn: 36871
 2007-05-06 09:31:32 +00:00
Chris Lattner
5f94a8492f disable this for now 
llvm-svn: 36870
 2007-05-06 09:31:06 +00:00
Chris Lattner
9fa29b4027 Fix MemoryBuffer::getFile to return null if it has an error opening the 
file instead of aborting.

llvm-svn: 36858
 2007-05-06 07:24:46 +00:00
Chris Lattner
49b1ec44eb This is a patch to fix a compile error in STLExtras.h, and 
a bug in GraphWriter.cpp.

Patch by Florian Brandner

llvm-svn: 36684
 2007-05-03 18:32:10 +00:00
Chris Lattner
d363044771 silence some annoying gcc 4.3 warnings 
llvm-svn: 36680
 2007-05-03 18:15:36 +00:00
Jeff Cohen
7cfc4b404f Fix MemoryBuffer breakage correctly. 
llvm-svn: 36561
 2007-04-29 14:43:31 +00:00
Jeff Cohen
349056458a Unbreak build. 
llvm-svn: 36559
 2007-04-29 14:21:44 +00:00
Chris Lattner
4749cca517 Add a new memorybuffer class, to unify all the file reading code in the system 
llvm-svn: 36553
 2007-04-29 06:58:52 +00:00
Zhou Sheng
8c150f133c Using APInt more efficiently. 
llvm-svn: 36475
 2007-04-26 16:42:07 +00:00
Jeff Cohen
5a502fb622 Fix PR1329. 
llvm-svn: 36016
 2007-04-14 21:50:21 +00:00
Reid Spencer
84c2475e77 We want the number of bits needed, not the power of 2. 
llvm-svn: 35977
 2007-04-14 00:00:10 +00:00
Reid Spencer
6e7854339e Implement a getBitsNeeded method to determine how many bits are needed to 
represent a string in binary form by an APInt.

llvm-svn: 35968
 2007-04-13 19:19:07 +00:00
Zhou Sheng
dedfc40044 Make the apint construction more effective. 
llvm-svn: 35960
 2007-04-13 05:57:32 +00:00
Chris Lattner
9564abbfb5 improve the patch for PR1318 to also support grouped options with custom 
handlers (like the pass list).  My previous fix only supported *new* command
line options, not additions to old ones.

This fixes test/Feature/load_module.ll

llvm-svn: 35935
 2007-04-12 00:36:29 +00:00
Chris Lattner
32f6730bb1 Fix PR1318 by reacting appropriately to a mutating option list. 
llvm-svn: 35905
 2007-04-11 15:35:18 +00:00
Reid Spencer
9b497be3c4 Fix an approximate calculation in an assertion not to give false negatives. 
llvm-svn: 35901
 2007-04-11 13:00:04 +00:00
Reid Spencer
875a2bc4db For PR1291: 
Change uses of sys::Path class to sys::PathWithStatus in those places where
the file status information is needed.

llvm-svn: 35743
 2007-04-07 18:53:16 +00:00
Nick Lewycky
ec51e934ef Add signExtend to ConstantRange, to complement zeroExtend and truncate. 
llvm-svn: 35733
 2007-04-07 15:41:33 +00:00
Chris Lattner
c1bce783e8 Fix a bug in my earlier commit which exposed positional options backwards. 
This fixes llvm-ar.

llvm-svn: 35727
 2007-04-07 05:38:53 +00:00
Chris Lattner
0160bf7114 rearchitect the registration mechanism used by the command line option stuff. 
This dramatically reduce the amount of memory allocated by the commandline stuff
at static init time, changing it to build local data structures when ParseCommandLineOptions
is called.  In a dummy empty program that links some llvm libraries, this reduces
the number of malloc'd bytes from 4864 to 3360 on entry to main.  Most of that
memory is now allocated by non-commandline related stuff.

llvm-svn: 35701
 2007-04-06 21:06:55 +00:00
Chris Lattner
d33f94f2d2 remove the dead removeArgument method, rename Options to OptionsMap. 
llvm-svn: 35690
 2007-04-05 21:58:17 +00:00
Chris Lattner
ed593d6789 stringmap memory managed with malloc now 
llvm-svn: 35666
 2007-04-04 17:24:28 +00:00
Chris Lattner
8a4ca643dd use calloc instead of new/memset, it is more efficient 
llvm-svn: 35644
 2007-04-04 00:44:31 +00:00
Chris Lattner
dbf6a79a71 Extend StringMap to support being initialized as completely empty. When 
initialized this way, they do not do a malloc to allocate their buckets.

llvm-svn: 35642
 2007-04-04 00:29:37 +00:00
Chris Lattner
59994ede6b greatly reduce hte default size of stringmap. 
llvm-svn: 35632
 2007-04-03 22:15:38 +00:00
Nick Lewycky
03f9c0ffc9 Implement union of wrapped sets. 
llvm-svn: 35534
 2007-04-01 03:47:44 +00:00
Reid Spencer
4269ae1274 For PR789: 
Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.

llvm-svn: 35476
 2007-03-29 19:05:44 +00:00
Reid Spencer
50b83584c4 For PR789: 
Updates for change in interface of getFileStatus method of sys::Path class.

llvm-svn: 35458
 2007-03-29 16:48:16 +00:00
Zhou Sheng
427b6bec97 Fix a bug in getAllOnesValue() which broke 
some test cases for bitwidth > 64.

llvm-svn: 35232
 2007-03-21 04:34:37 +00:00
Jeff Cohen
21c7fc9c1f Fix (and simplify) 48-bit byte swap. 
Get pos/neg infinity the correct way.

llvm-svn: 35223
 2007-03-20 20:42:36 +00:00
Reid Spencer
41d254c7f4 Fix coding standards violation. 
llvm-svn: 35189
 2007-03-19 21:19:02 +00:00
Reid Spencer
b7d0a60da1 Implement extension of sign bits for negative values in the uint64_t 
constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35180
 2007-03-19 20:37:47 +00:00
Reid Spencer
7be576b4b0 Revert the last patch as it violates the conditions of sext/zext. 
llvm-svn: 35068
 2007-03-12 18:37:25 +00:00
Zhou Sheng
0145067d85 For APInt::z/sext(width), if width == BitWidth, just return *this. 
llvm-svn: 35065
 2007-03-12 17:47:45 +00:00
Nick Lewycky
2af4a3ab17 Add getter methods for the extremes of a ConstantRange. 
llvm-svn: 35056
 2007-03-10 15:54:12 +00:00
Jeff Cohen
98c99a3a02 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Reid Spencer
3e3980a403 Fix ashr for bitwidths > 64. This is now validated up to 1024 bits. 
llvm-svn: 34852
 2007-03-02 22:39:11 +00:00
Reid Spencer
6d483da6c0 Use a better algorithm for rounding sqrt results. Change the FIXME about 
this to a NOTE: because pari/gp results start to get rounded incorrectly
after 192 bits of precision. APInt and pari/gp never differ by more than
1, but APInt is more accurate because it does not lose precision after 192
bits as does pari/gp.

llvm-svn: 34834
 2007-03-02 04:21:55 +00:00
Nick Lewycky
29f7380f34 Implement unionWith. 
llvm-svn: 34833
 2007-03-02 03:33:05 +00:00
Reid Spencer
39b817765b Add a FIXME 
llvm-svn: 34828
 2007-03-02 02:01:34 +00:00
Reid Spencer
eabc981a60 Fix a problem where shifting by 64-bits leads to incorrect results on PPC 
but not on X86 becuase shift by word size is "undefined".

llvm-svn: 34825
 2007-03-02 01:19:42 +00:00
Reid Spencer
f8f8413839 Combine two lines that can be. 
llvm-svn: 34818
 2007-03-01 23:30:25 +00:00
Reid Spencer
c94231581b Make the static table of results in sqrt const. 
llvm-svn: 34791
 2007-03-01 17:47:31 +00:00
Reid Spencer
6a95676875 Add methods for bit width modification: sextOrTrunc, zextOrTrunc. 
llvm-svn: 34789
 2007-03-01 17:15:32 +00:00
Reid Spencer
3f3487918c Remove the "isSigned" parameters from ConstantRange. It turns out they 
are not needed as the results are the same with or without it.

Patch by Nicholas Lewycky.

llvm-svn: 34782
 2007-03-01 07:54:15 +00:00
Reid Spencer
0d77fe7f06 Use a real table in sqrt to shorten and quicken the code. 
Thanks for the idea Chris.

llvm-svn: 34779
 2007-03-01 06:23:32 +00:00