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688 Commits

Author SHA1 Message Date
Ted Kremenek
6f30a0798f 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
4f26eb7270 Add support to FoldingSet for hashing APInt objects. 
llvm-svn: 46833
 2008-02-06 23:09:15 +00:00
Ted Kremenek
e288786356 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
726933a589 Fixed 80 col. violation. 
llvm-svn: 46709
 2008-02-04 17:14:20 +00:00
Dale Johannesen
8ef8f24c40 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
b456a15a5b 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
0f54a09163 Simplify the code and fix a typo. 
llvm-svn: 46458
 2008-01-28 20:02:51 +00:00
Lauro Ramos Venancio
99929d20e7 Fix fpcmp infinite loop when comparing "29-266" with "29-268". 
llvm-svn: 46455
 2008-01-28 18:23:23 +00:00
Ted Kremenek
4875d2d997 Added FoldingSet style 'profiling' support for APSInt. 
llvm-svn: 46189
 2008-01-19 04:31:12 +00:00
Ted Kremenek
5c75d54c5b Added FoldingSet style 'profiling' support for APInt. 
llvm-svn: 46188
 2008-01-19 04:23:33 +00:00
Ted Kremenek
c0259639ad 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
f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Chris Lattner
a087a8d2ce remove attribution from lib Makefiles. 
llvm-svn: 45415
 2007-12-29 20:09:26 +00:00
Anton Korobeynikov
ee6af40c95 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
0b1df1d3da 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
e5256754e7 proper #include order. 
llvm-svn: 44707
 2007-12-08 19:00:03 +00:00
Gordon Henriksen
4b41a6f529 Adding a StringPool data structure, which GC will use. 
llvm-svn: 44705
 2007-12-08 17:07:47 +00:00
Neil Booth
06f20ea4ba Prior commit updated wrong if, apologies. 
llvm-svn: 44614
 2007-12-05 13:06:04 +00:00
Neil Booth
3ab004bca6 Handle zero correctly. 
llvm-svn: 44613
 2007-12-05 13:01:24 +00:00
Dale Johannesen
9d43e3d841 Handle 0 correctly in string->APFloat conversion. 
llvm-svn: 44594
 2007-12-05 01:10:19 +00:00
Chris Lattner
893fe3bbd1 Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros. 
llvm-svn: 44296
 2007-11-23 22:42:31 +00:00
Chris Lattner
c2c4c7456c 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
44158478bb 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
06a10df562 Fix denormal check in float->APInt conversion. 
PR 1804.

llvm-svn: 44201
 2007-11-17 01:02:27 +00:00
Chris Lattner
581f006f5d 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
758d0fd736 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
ae077d232c Add back line whose removal somehow crept into prior patch 
llvm-svn: 43627
 2007-11-01 22:51:07 +00:00
Neil Booth
618d0fc377 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
fc69d322f2 Clarified operator precedence. 
Silenced VC++ warning.

llvm-svn: 43372
 2007-10-25 23:15:31 +00:00
Chris Lattner
1b88e3c2dd 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
9130551996 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
5fe658b21d Consolidate logic for creating NaNs. Silence compiler warning. 
llvm-svn: 42966
 2007-10-14 10:39:51 +00:00
Neil Booth
06077e7c3c 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
4ed401b898 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
c799fe9ed9 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
d502a82092 Remove duplicate comment. 
llvm-svn: 42913
 2007-10-12 16:05:57 +00:00
Neil Booth
b93d90e98c 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
e9dbe094aa Remove a field that was never used. 
llvm-svn: 42911
 2007-10-12 15:35:10 +00:00
Neil Booth
146fdb3eeb 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
7e74b17ad2 Don't attempt to mask no bits 
llvm-svn: 42909
 2007-10-12 15:31:31 +00:00
Dale Johannesen
007aa378ad 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
f5ea386698 Add new MemoryBuffer::getMemBufferCopy method. 
llvm-svn: 42815
 2007-10-09 21:46:38 +00:00
Dan Gohman
66966403ce 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
5c50f59690 Change a #include into a forward declaration 
llvm-svn: 42781
 2007-10-09 03:40:30 +00:00
Dan Gohman
2c6a821fd7 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
49c6aab7b8 Use APInt::tcExtract. It's cleaner, and works :) 
llvm-svn: 42746
 2007-10-08 14:39:42 +00:00
Neil Booth
b618216e56 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
03f58ab706 Add back convertFromSignExtendedInteger. 
llvm-svn: 42735
 2007-10-07 12:15:41 +00:00
Neil Booth
ba205229e7 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
6c1c8588ae 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