123a35a81c
Have raw_fd_ostream keep track of the position in the file to make tell() go faster by not requiring a flush().
...
llvm-svn: 60560
2008-12-04 22:51:11 +00:00
50343cd2fe
fix build on some machines. thanks buildbot
...
llvm-svn: 60175
2008-11-27 16:42:44 +00:00
d5c2a144e1
fix my previous commit r60064: compare strings instead of pointers
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llvm-svn: 60174
2008-11-27 16:37:02 +00:00
c6075401c2
Get rid of bogus "control may reach end of non-void function ‘...’ being
...
inlined" message.
llvm-svn: 60165
2008-11-27 08:00:12 +00:00
e076257b8c
Add 'tell' method to raw_fd_ostream that clients can use to query the current location in the file the stream is writing to.
...
llvm-svn: 60085
2008-11-26 03:33:13 +00:00
496b042e20
Revert r60042. IndVarSimplify should check if APFloat is PPCDoubleDouble first before trying to convert it to an integer.
...
llvm-svn: 60072
2008-11-26 01:11:57 +00:00
b472c9fac7
change AnnotationManager to use 'const char*' instead of std::string. this fixes the leakage of those strings and avoids the creation of such strings in static cosntructors (should result in a little improvement of startup time)
...
llvm-svn: 60064
2008-11-26 00:00:44 +00:00
2e5aeff676
convertToSignExtendedInteger should return opInvalidOp instead of asserting if sematics of float does not allow arithmetics.
...
llvm-svn: 60042
2008-11-25 19:00:29 +00:00
ed90e701f0
Add Binary flag to raw_fd_ostream constructor.
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Document raw_fd_ostream's treatment of "-".
llvm-svn: 59219
2008-11-13 05:01:07 +00:00
bde853911f
Overload AddInteger on int/long/long long instead of on int/int64_t,
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to avoid overload ambiguities. This fixes build errors introduced
by r58623.
llvm-svn: 58632
2008-11-03 19:40:18 +00:00
2bfc72e65e
fix PR2953, an off-by-one error handling formatted i/o.
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Thanks to Török Edwin for the awesome reduced testcase.
llvm-svn: 58199
2008-10-26 19:20:47 +00:00
3c6de496b0
Added raw_fd_ostream::close().
...
llvm-svn: 58052
2008-10-23 23:49:09 +00:00
e9de15b88a
Fix for PR2881: fix a small leak exposed by valgrind, using a ManagedStatic.
...
llvm-svn: 57984
2008-10-22 16:30:41 +00:00
1ca20df437
Clear raw_fd_ostream error string on success and explain behavior in
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documentation.
Add C++ header marker.
llvm-svn: 57923
2008-10-21 19:53:10 +00:00
9c4b7d5c4f
Fix command-line option printing to print two spaces where needed,
...
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.
llvm-svn: 57521
2008-10-14 20:25:08 +00:00
cc98e28f37
Change TAG_ names to DW_TAG for gcc (testsuite) compatibility.
...
llvm-svn: 57425
2008-10-12 21:23:01 +00:00
ba074c0fed
Change Dwarf comments starting with AT_ to DW_AT_ to
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match gcc. Helps with the testsuite.
llvm-svn: 57410
2008-10-12 06:20:47 +00:00
d57b7603f9
rearrange some code.
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llvm-svn: 57384
2008-10-11 22:07:19 +00:00
4f0bd68cfe
Add a "loses information" return value to APFloat::convert
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and APFloat::convertToInteger. Restore return value to
IEEE754. Adjust all users accordingly.
llvm-svn: 57329
2008-10-09 23:00:39 +00:00
54306fe499
Rename APFloat::convertToAPInt to bitcastToAPInt to
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make it clearer what the function does. No functional
change.
llvm-svn: 57325
2008-10-09 18:53:47 +00:00
7221af384d
Mark negative-zero-to-int conversion as Inexact,
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since -0.0 can't be represented as an int.
This prevents llvm from reducing -0.0 to a
load-and-convert of int 0. Fixes
ieee.exp/mzero[2356].c in gcc testsuite.
llvm-svn: 57224
2008-10-07 00:40:01 +00:00
6c6729f3a8
Be more precise about which conversions of NaNs
...
are Inexact. (These are not Inexact as defined
by IEEE754, but that seems like a reasonable way
to abstract what happens: information is lost.)
llvm-svn: 57218
2008-10-06 22:59:10 +00:00
6271b0a83c
Temporarily revert functionality change from my previous patch;
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it is too aggressive.
llvm-svn: 57203
2008-10-06 20:43:48 +00:00
fff2995532
Mark shortening NaN conversions as Inexact. PR 2856.
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Improve description of unsupported formats.
llvm-svn: 57185
2008-10-06 18:22:29 +00:00
a229b3c9a7
Initial support for the CMake build system.
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llvm-svn: 56419
2008-09-22 01:08:49 +00:00
0f7b5666a2
Updating VC++ project.
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Adding one include file and correct one declaration from class to struct in order to make llvm compile on VC2005.
llvm-svn: 55279
2008-08-24 11:56:40 +00:00
205af9643d
Add raw_stream adaptors that write into an std::string and SmallVector/SmallString.
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llvm-svn: 55265
2008-08-23 22:43:04 +00:00
0c19df4871
Switch the asmprinter (.ll) and all the stuff it requires over to
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use raw_ostream instead of std::ostream. Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).
Other interesting changes:
1) This makes Value::print be non-virtual.
2) AP[S]Int and ConstantRange can no longer print to ostream directly,
use raw_ostream instead.
3) This fixes a bug in raw_os_ostream where it didn't flush itself
when destroyed.
4) This adds a new SDNode::print method, instead of only allowing "dump".
A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream
versions.
This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.
llvm-svn: 55263
2008-08-23 22:23:09 +00:00
da42964999
add #include
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llvm-svn: 55252
2008-08-23 20:34:06 +00:00
22b52c984a
add a simple mechanism for formatted output. This gives raw_ostream's
...
all the power and risk of fprintf format strings. Use them like this:
OS << format("%10.4f", 42.0) << "\n" << format("%x", 42) << '\n';
llvm-svn: 55246
2008-08-23 19:23:10 +00:00
0e44e0d7a8
Add a clear() method to FoldingSet.
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llvm-svn: 55210
2008-08-23 00:42:16 +00:00
d564f29957
improve support for systems that need unistd.h to get STDOUT_FILENO.
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Patch contributed by Bjorn Reese!
llvm-svn: 55179
2008-08-22 15:45:00 +00:00
3ad8ac90b6
Fix write() when the string being written is larger than the buffer. This broke various ObjC testcases
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with very long symbol names.
llvm-svn: 55148
2008-08-21 22:39:33 +00:00
d2850538db
Move non-trivial methods out of line to avoid code-size bloat.
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llvm-svn: 55138
2008-08-21 20:58:52 +00:00
9371964f47
Use raw_ostream throughout the AsmPrinter.
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llvm-svn: 55092
2008-08-21 00:14:44 +00:00
1ac3e2545b
Move the fast-path (<=i64) cases of various APInt methods inline
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and the slow-path cases out of line. This speeds up instcombine
a bit in real world cases. Patch contributed by m-s.
llvm-svn: 55063
2008-08-20 17:02:31 +00:00
0f23237b0c
It's not necessary to check if a value is null before delete[].
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llvm-svn: 55053
2008-08-20 14:55:37 +00:00
b97ff82bd4
Get raw_ostream.cpp to compile on MSVC.
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llvm-svn: 54879
2008-08-17 09:25:21 +00:00
17f7165f84
Rework the routines that convert AP[S]Int into a string. Now, instead of
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returning an std::string by value, it fills in a SmallString/SmallVector
passed in. This significantly reduces string thrashing in some cases.
More specifically, this:
- Adds an operator<< and a print method for APInt that allows you to
directly send them to an ostream.
- Reimplements APInt::toString to be much simpler and more efficient
algorithmically in addition to not thrashing strings quite as much.
This speeds up llvm-dis on kc++ by 7%, and may also slightly speed up the
asmprinter. This also fixes a bug I introduced into the asmwriter in a
previous patch w.r.t. alias printing.
llvm-svn: 54873
2008-08-17 07:19:36 +00:00
8fcea67ae9
remove a dead APInt ctor.
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llvm-svn: 54869
2008-08-17 04:58:58 +00:00
d3723fc8a2
add support for a cout/cerr analog (outs()/errs()) as well as
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a simple adaptor class to give raw output capabilities to
something that wants to write to an ostream.
llvm-svn: 54865
2008-08-17 04:13:37 +00:00
d5bc0683fd
opening "-" automatically yields stdout.
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llvm-svn: 54863
2008-08-17 03:53:23 +00:00
3394262a33
rename OutputData to 'write' to match ostream.
...
llvm-svn: 54857
2008-08-17 01:46:05 +00:00
84b94f77c6
add a new raw_ostream class which is an extremely high performance ostream that
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can *only* output data (no seeking, reading, etc). This is adapted from the
clang "-E outputter", and is roughly 10% faster than stdio on darwin and 30%
(or more) faster than std::ostream.
llvm-svn: 54855
2008-08-17 01:35:29 +00:00
be5e69ed37
Avoid repeatedly reallocating the FoldingSetNodeID when searching
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through multiple nodes in a bucket.
llvm-svn: 54687
2008-08-12 17:40:22 +00:00
e955c481fd
Fix several const-correctness issues, resolving some -Wcast-qual warnings.
...
llvm-svn: 54349
2008-08-05 14:45:15 +00:00
804c95df52
Fold the useful features of alist and alist_node into ilist, and
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a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.
Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.
Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.
llvm-svn: 54146
2008-07-28 21:51:04 +00:00
f0d21cdd19
Fix PR2088. Use modulo linear equation solver to compute loop iteration
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count.
llvm-svn: 53810
2008-07-20 15:55:14 +00:00
adec96f438
Reapply 53476 and 53480, with a fix so that it properly updates
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the BB member to the current basic block after emitting
instructions.
llvm-svn: 53567
2008-07-14 18:19:29 +00:00
ef8412c822
Back out 53476 and 53480 for now. Somehow they cause llc to miscompile 179.art.
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llvm-svn: 53502
2008-07-12 01:38:51 +00:00
36a69373dc
Add support for putting NamedRegionTimers in TimerGroups, and
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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
3707f1daba
Use find instead of lower_bound.
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llvm-svn: 53474
2008-07-11 20:58:19 +00:00
e5932e5a3d
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
31936d6ab6
Add a version of AddString that takes a const char* so we can avoid extraneous
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conversions to std::string.
llvm-svn: 52995
2008-07-01 23:49:59 +00:00
5ceb8b676c
Append to the ActiveTimers std::vector before looking at the timer instead
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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
41b744dc51
First step to fix PR2088. Implement routine to compute the
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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
33204b7c20
Avoid creating a redundant zero APInt.
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llvm-svn: 52602
2008-06-21 22:03:12 +00:00
90ada832be
Consistently set "Buckets[NumBuckets] = reinterpret_cast<void*>(-1)" throughout FoldingSet.cpp.
...
llvm-svn: 52425
2008-06-17 19:12:43 +00:00
1247c07742
As comments said, for negative value, the arithmetic
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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
c9c67157d1
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
33e396d041
Remove more iostream header includes. Needed to implement a "FlushStream"
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function to flush a specified std::ostream.
llvm-svn: 51705
2008-05-29 21:46:33 +00:00
e3a6a18364
Tidy up whitespace in ConstantRange::print output.
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llvm-svn: 51606
2008-05-27 20:29:07 +00:00
fa48372a24
Don't assume underlying APInt type is limited
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to 64 bits.
llvm-svn: 51135
2008-05-14 22:53:25 +00:00
8d76cdb144
Remove undefined behavior in hex string->APFloat
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conversion. Try 0x1.0000a4p+0f. Neil, please review.
llvm-svn: 51132
2008-05-14 22:05:31 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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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
02e5933fa3
Make firstEightPowers const.
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llvm-svn: 50975
2008-05-12 16:38:14 +00:00
a8b7e78f54
Remove uses of llvm/System/IncludeFile.h that are no longer needed.
...
llvm-svn: 50695
2008-05-06 01:32:53 +00:00
86cb31862f
Fix more -Wshorten-64-to-32 warnings.
...
llvm-svn: 50659
2008-05-05 18:30:58 +00:00
82b9e96274
Suppress -Wshorten-64-to-32 warnings for 64-bit hosts.
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llvm-svn: 50590
2008-05-02 21:15:08 +00:00
659e5c4bc9
fcntl.h is pretty standard on unix (without the sys/)
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llvm-svn: 50475
2008-04-30 08:53:22 +00:00
f06226f506
Fix a pointer-arithmetic bug that caused 64-bit host pointer values to
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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
e51f22986b
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.
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llvm-svn: 50362
2008-04-28 17:58:07 +00:00
5653d3bc48
Add support for response files to the CommandLine library.
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llvm-svn: 50355
2008-04-28 16:44:25 +00:00
c107d0020d
Make these variables static.
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llvm-svn: 50196
2008-04-23 23:15:23 +00:00
64bbdb17f5
Check that APFloat::convert is not trying to target
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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
53d3241b52
Use gv's --spartan option, which trades away an extra row of UI buttons
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for more space for displaying the graph.
llvm-svn: 49730
2008-04-15 17:27:05 +00:00
f4bc782495
Make several symbols static.
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llvm-svn: 49496
2008-04-10 21:11:47 +00:00
fc9f25dab0
Fix compilation errors on MSVC. Patch by Argiris Kirtzidis!
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llvm-svn: 49055
2008-04-01 22:09:20 +00:00
6f2ffdb73f
Change the MemoryBuffer::getFile* methods to take just a pointer to the
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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
a542518315
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
bcfa564759
Remove the MappedFile::charBase member, rename base -> getBase() and
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make getBase() return a const-correct pointer.
llvm-svn: 49025
2008-04-01 03:40:53 +00:00
314a1414d0
Change DiffFilesWithTolerance to be written in terms of MemoryBuffer,
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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
62385ba3a0
Remove MappedFile support for mapping files for write and exec
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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
c60c67fc37
Add explicit keywords.
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llvm-svn: 48801
2008-03-25 22:06:05 +00:00
bdc24adaaf
A quick nm audit turned up several fixed tables and objects that were
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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
9a11a0174f
Add assert for non-hexadecimal radixes.
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llvm-svn: 48421
2008-03-16 20:05:52 +00:00
4e97e94809
Fix a typo. It's causing consumer-typeset to miscompile. Perhaps more.
...
llvm-svn: 48035
2008-03-07 22:39:49 +00:00
105c1d4106
Add support to APInt for shift and rotate operations with APInt
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instead of uint32_t for the shift/rotate count operand type.
llvm-svn: 47741
2008-02-29 01:40:47 +00:00
35723eb4f6
Add a method to APFloat to convert directly from APInt.
...
llvm-svn: 47738
2008-02-29 01:26:11 +00:00
63d2d1f554
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
360c86aed5
Add explicit keywords.
...
llvm-svn: 47382
2008-02-20 16:44:09 +00:00
f275a49f7f
Add 'sink' cmdline option. Patch by Mikhail Glushenkov!
...
llvm-svn: 47377
2008-02-20 12:38:07 +00:00
579f07135a
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
901540f118
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
d66c791904
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
c354ebddd1
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
8b4fa9dc0a
Add countTrailingOnes member functions to APInt.
...
llvm-svn: 47086
2008-02-13 21:11:05 +00:00
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
4f26eb7270
Add support to FoldingSet for hashing APInt objects.
...
llvm-svn: 46833
2008-02-06 23:09:15 +00:00
e288786356
Added "bucket_iterators" to FoldingSet. Bucket iterators allow iteration
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over all the nodes in a particular bucket.
llvm-svn: 46716
2008-02-04 21:11:17 +00:00
726933a589
Fixed 80 col. violation.
...
llvm-svn: 46709
2008-02-04 17:14:20 +00:00
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
b456a15a5b
Remove top-level const qualifiers from casts, avoiding associated
...
compiler warnings.
llvm-svn: 46509
2008-01-29 12:08:20 +00:00
0f54a09163
Simplify the code and fix a typo.
...
llvm-svn: 46458
2008-01-28 20:02:51 +00:00
99929d20e7
Fix fpcmp infinite loop when comparing "29-266" with "29-268".
...
llvm-svn: 46455
2008-01-28 18:23:23 +00:00
4875d2d997
Added FoldingSet style 'profiling' support for APSInt.
...
llvm-svn: 46189
2008-01-19 04:31:12 +00:00
5c75d54c5b
Added FoldingSet style 'profiling' support for APInt.
...
llvm-svn: 46188
2008-01-19 04:23:33 +00:00
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
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
a087a8d2ce
remove attribution from lib Makefiles.
...
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
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
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
e5256754e7
proper #include order.
...
llvm-svn: 44707
2007-12-08 19:00:03 +00:00
4b41a6f529
Adding a StringPool data structure, which GC will use.
...
llvm-svn: 44705
2007-12-08 17:07:47 +00:00
06f20ea4ba
Prior commit updated wrong if, apologies.
...
llvm-svn: 44614
2007-12-05 13:06:04 +00:00
3ab004bca6
Handle zero correctly.
...
llvm-svn: 44613
2007-12-05 13:01:24 +00:00
9d43e3d841
Handle 0 correctly in string->APFloat conversion.
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llvm-svn: 44594
2007-12-05 01:10:19 +00:00
893fe3bbd1
Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros.
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llvm-svn: 44296
2007-11-23 22:42:31 +00:00
c2c4c7456c
Fix APInt::countTrailingZeros to return BitWidth if the input is zero instead of returning some random large number.
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llvm-svn: 44294
2007-11-23 22:36:25 +00:00
44158478bb
Fix the Linker testcase regressions, by making MemoryBuffer::getFileOrSTDIN return
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a valid but empty buffer if stdin is empty.
llvm-svn: 44219
2007-11-18 18:52:28 +00:00
06a10df562
Fix denormal check in float->APInt conversion.
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PR 1804.
llvm-svn: 44201
2007-11-17 01:02:27 +00:00
581f006f5d
make smallptrset more const and type correct, which caught a few
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minor bugs.
llvm-svn: 43782
2007-11-06 22:12:43 +00:00
758d0fd736
Remove some unnecessary C-style statics.
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Restore an assertion that arithmetic can be performed on this format.
llvm-svn: 43638
2007-11-02 15:10:05 +00:00
ae077d232c
Add back line whose removal somehow crept into prior patch
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llvm-svn: 43627
2007-11-01 22:51:07 +00:00
618d0fc377
When converting to integer, do bit manipulations in the destination
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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
fc69d322f2
Clarified operator precedence.
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Silenced VC++ warning.
llvm-svn: 43372
2007-10-25 23:15:31 +00:00
1b88e3c2dd
This requires rtti info because tblgen uses commandline,
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and tblgen requires rtti.
llvm-svn: 43127
2007-10-18 15:57:29 +00:00
9130551996
Fast-track obviously over-large and over-small exponents during decimal->
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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
5fe658b21d
Consolidate logic for creating NaNs. Silence compiler warning.
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llvm-svn: 42966
2007-10-14 10:39:51 +00:00
06077e7c3c
Whether arithmetic is supported is a property of the semantics. Make it
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so, and clean up the checks by putting them in an inline function.
llvm-svn: 42965
2007-10-14 10:29:28 +00:00
4ed401b898
Separate out parsing of decimal number. Use this to only allocate
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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
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.
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llvm-svn: 42950
2007-10-13 03:34:08 +00:00
d502a82092
Remove duplicate comment.
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llvm-svn: 42913
2007-10-12 16:05:57 +00:00
b93d90e98c
Implement correctly-rounded decimal->binary conversion, i.e. conversion
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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
e9dbe094aa
Remove a field that was never used.
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llvm-svn: 42911
2007-10-12 15:35:10 +00:00
146fdb3eeb
If we're trying to be arbitrary precision, unsigned char clearly won't cut it. Needed for dec->bin conversions.
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llvm-svn: 42910
2007-10-12 15:33:27 +00:00
7e74b17ad2
Don't attempt to mask no bits
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llvm-svn: 42909
2007-10-12 15:31:31 +00:00
007aa378ad
Next PPC long double bits. First cut at constants.
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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
f5ea386698
Add new MemoryBuffer::getMemBufferCopy method.
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llvm-svn: 42815
2007-10-09 21:46:38 +00:00
66966403ce
Pass argc by value, not by reference, since it isn't modified.
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llvm-svn: 42788
2007-10-09 16:04:57 +00:00
5c50f59690
Change a #include into a forward declaration
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llvm-svn: 42781
2007-10-09 03:40:30 +00:00
2c6a821fd7
Move the space in overview output for commands out of each of the
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commands and into the common code.
llvm-svn: 42752
2007-10-08 15:45:12 +00:00
49c6aab7b8
Use APInt::tcExtract. It's cleaner, and works :)
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llvm-svn: 42746
2007-10-08 14:39:42 +00:00
b618216e56
Add a new function tcExtract for extracting a bignum from an
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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
03f58ab706
Add back convertFromSignExtendedInteger.
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llvm-svn: 42735
2007-10-07 12:15:41 +00:00
ba205229e7
Now that convertFromUnsignedParts has a sane, constant interface,
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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
6c1c8588ae
Reimplement convertFromUnsignedInteger so it is passed a const bignum.
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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
5f00973393
convertFromInteger, as originally written, expected sign-extended
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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
d3985924f4
combineLostFractions does not need to be a member function
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llvm-svn: 42729
2007-10-07 08:51:21 +00:00
32897f5eb0
Cleaner, more general exponent output.
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llvm-svn: 42690
2007-10-06 07:29:25 +00:00
Ted Kremenek