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788 Commits

Author SHA1 Message Date
Wojciech Matyjewicz
eea926ec20 Fix PR2088. Use modulo linear equation solver to compute loop iteration 
count.

llvm-svn: 53810
 2008-07-20 15:55:14 +00:00
Dan Gohman
e76fd33ee5 Reapply 53476 and 53480, with a fix so that it properly updates 
the BB member to the current basic block after emitting
instructions.

llvm-svn: 53567
 2008-07-14 18:19:29 +00:00
Evan Cheng
ebf7ff4531 Back out 53476 and 53480 for now. Somehow they cause llc to miscompile 179.art. 
llvm-svn: 53502
 2008-07-12 01:38:51 +00:00
Dan Gohman
6ee2195ab1 Add support for putting NamedRegionTimers in TimerGroups, and 
use a timer group for the timers in SelectionDAGISel. Also,
Split scheduling out from emitting, to give each their own
timer.

llvm-svn: 53476
 2008-07-11 21:54:34 +00:00
Dan Gohman
d1342570f2 Use find instead of lower_bound. 
llvm-svn: 53474
 2008-07-11 20:58:19 +00:00
Dan Gohman
60e964b34c Add some basic Pool-allocation infrastructure. This adds a Recycler class, 
for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.

llvm-svn: 53210
 2008-07-07 22:58:06 +00:00
Owen Anderson
1530481dd3 Add a version of AddString that takes a const char* so we can avoid extraneous 
conversions to std::string.

llvm-svn: 52995
 2008-07-01 23:49:59 +00:00
Dan Gohman
a08868acb3 Append to the ActiveTimers std::vector before looking at the timer instead 
of after, so that any reallocation it does doesn't get counted for the pass
being timed.  This probably doesn't account for a timing discrepancy I was
looking into, but I'm fixing it anyway.

llvm-svn: 52693
 2008-06-24 22:07:07 +00:00
Wojciech Matyjewicz
1de28ac425 First step to fix PR2088. Implement routine to compute the 
multiplicative inverse of a given number. Modify udivrem to allow input and 
output pairs of arguments to overlap. Patch is based on the work by Chandler
Carruth.

llvm-svn: 52638
 2008-06-23 19:39:50 +00:00
Dan Gohman
e6da01721b Avoid creating a redundant zero APInt. 
llvm-svn: 52602
 2008-06-21 22:03:12 +00:00
Ted Kremenek
a9f1f1db52 Consistently set "Buckets[NumBuckets] = reinterpret_cast<void*>(-1)" throughout FoldingSet.cpp. 
llvm-svn: 52425
 2008-06-17 19:12:43 +00:00
Zhou Sheng
0d32cd97e1 As comments said, for negative value, the arithmetic 
over-shift-right should return -1. So here it should be signed-extended,
when bitwidth larger than 64.

test case: llvm/test/ExecutionEngine/2008-06-05-APInt-OverAShr.ll

llvm-svn: 51999
 2008-06-05 13:27:38 +00:00
Matthijs Kooijman
9fc9250ec0 Give a proper error message when a command line option is defined more than 
once (ie, at two different places in the source, not two times on the
commandline).

llvm-svn: 51771
 2008-05-30 13:26:11 +00:00
Bill Wendling
2ba98ca60f Remove more iostream header includes. Needed to implement a "FlushStream" 
function to flush a specified std::ostream.

llvm-svn: 51705
 2008-05-29 21:46:33 +00:00
Dan Gohman
92d5dff525 Tidy up whitespace in ConstantRange::print output. 
llvm-svn: 51606
 2008-05-27 20:29:07 +00:00
Dale Johannesen
809ad5df81 Don't assume underlying APInt type is limited 
to 64 bits.

llvm-svn: 51135
 2008-05-14 22:53:25 +00:00
Dale Johannesen
b9d2bc9303 Remove undefined behavior in hex string->APFloat 
conversion.  Try 0x1.0000a4p+0f.  Neil, please review.

llvm-svn: 51132
 2008-05-14 22:05:31 +00:00
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