Commit Graph

810 Commits

Author SHA1 Message Date
Neil Booth
33d4c92e78 combineLostFractions does not need to be a member function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42729 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 08:51:21 +00:00
Neil Booth
92f7e8d925 Cleaner, more general exponent output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42690 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-06 07:29:25 +00:00
Chris Lattner
a11ef82207 silence warnings in no-assert build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42687 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-06 06:13:42 +00:00
Neil Booth
055c0b3a8f Fix and clarify some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42670 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-06 00:43:45 +00:00
Neil Booth
978661d053 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42669 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-06 00:24:48 +00:00
Neil Booth
a30b0ee959 Add APFloat -> hexadecimal string conversion, as per %a and %A in C99.
Useful for diagnostics and debugging.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42598 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 22:26:02 +00:00
Chris Lattner
116c3219df Add initial iterator support for folding set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42589 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 21:12:09 +00:00
Chris Lattner
9a7288b0c6 Simplify implementation of the FoldingSet circular list, a necessary step
to giving it iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42586 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 20:45:43 +00:00
Neil Booth
b7dea4cb36 Tweak RoundAwayFromZero the bit number below which is truncated, and make
it const.

Preparation for APFloat -> hexadecimal string conversion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42576 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 15:16:41 +00:00
Dale Johannesen
cce23a4c35 Simplify and fix signed int -> FP conversions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42483 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-30 18:17:01 +00:00
Neil Booth
4f88170be0 Whitespace and compiler warning cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42373 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-26 21:33:42 +00:00
Dale Johannesen
0edc47ad7b Make APFloat->int conversions deterministic even in
cases with undefined behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42328 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25 23:07:07 +00:00
Dale Johannesen
902ff94aff Fix long double<->shorter FP type conversions
of zero, infinity, and NaNs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42298 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25 17:25:00 +00:00
Neil Booth
c8db43ddaf Handle storage complications of float->float conversions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42220 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-22 02:56:19 +00:00
Dale Johannesen
910993e8dc 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-21 22:09:37 +00:00
Dale Johannesen
a72a5a095d Fix PR 1688. See comments there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42181 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-20 23:47:58 +00:00
Devang Patel
8feb1f4467 Do not hide APInt::dump() inside #ifndef NDEBUG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42068 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17 22:24:00 +00:00
Chris Lattner
2204906892 fix a gcc warning: comparison between signed and unsigned integer expressions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41972 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 22:57:00 +00:00
Dale Johannesen
9e3d3abd93 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41967 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 22:26:36 +00:00
Dan Gohman
f82e1e66ce And an FoldingSetImpl::NodeID::AddInteger overload for int64_t, to avoid
ambiguity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41960 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 20:48:42 +00:00
Dan Gohman
cb648f90a2 Remove spurious consts. This fixes warnings with compilers that
are strict about such things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41956 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 20:08:19 +00:00
Dale Johannesen
257500db04 Compensate for partCount change in Bogus definition
(could break hash table in ConstantFP)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41874 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-12 01:22:05 +00:00
Dale Johannesen
3f6eb7419d 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 18:32:33 +00:00
Evan Cheng
7dfda9e674 Smarter Reset(). Instead of deallocating all memory regions and reallocate the
first region, just deallocate all but the last region in the list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41782 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-08 00:02:17 +00:00
Evan Cheng
188b5224fd Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-05 21:41:34 +00:00
Dale Johannesen
58c2e4c5fd Fix mod so it actually works. Fix conversions to
native types to handle denormals correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41726 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-05 20:39:49 +00:00
Dale Johannesen
e15c2db993 Oops, should be part of 41664; won't work very well without this piece.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41665 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31 23:35:31 +00:00
Dale Johannesen
eaf089430e Enhance APFloat to retain bits of NaNs (fixes oggenc).
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31 04:03:46 +00:00
Dale Johannesen
f04afdbb48 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41587 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-30 00:23:21 +00:00
Dale Johannesen
12595d7b16 Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
This means backing out the preceding change to Constants.cpp, alas.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41378 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 22:09:56 +00:00
Dale Johannesen
d3b51fd170 Revised per review feedback from previous patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 05:08:11 +00:00
Chris Lattner
ada530b4f5 silence some warnings in an optimized build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 03:02:34 +00:00
Dale Johannesen
343e770983 Change internal representation of ConstantFP to use APFloat.
Interface to rest of the compiler unchanged, as yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41348 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 00:56:33 +00:00
Chris Lattner
9132a2b818 rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned()
Add an APSInt::toString() method.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41309 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23 05:15:32 +00:00
Chris Lattner
b39cdde41d initial checkin of Neil's APFloat work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41203 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20 22:49:32 +00:00
Chris Lattner
fe8e14a6c9 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!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41124 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 15:56:55 +00:00
Anton Korobeynikov
ebf0303810 Properly use const qualifiers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41111 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 21:12:30 +00:00
Reid Spencer
2372ccc111 Make getSTDIN return null if the standard input is empty, as the header file
documentation implies and as its uses depend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40939 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-08 20:01:58 +00:00
Reid Spencer
c69b0dd19d Escape some escapes that confuse doxygen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40850 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-05 19:33:11 +00:00
Chris Lattner
42e4bdf257 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40837 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-05 07:32:14 +00:00
Owen Anderson
e992a56ae9 Allow SmallPtrSet to hold pointers to const data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40556 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-27 18:07:02 +00:00
Owen Anderson
bf31b85ea2 Make the copy constructor of SmallPtrSet much faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40474 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 21:31:23 +00:00
Owen Anderson
71a1e57d18 Remember to free the heap allocated array if we're not going to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40043 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 06:45:33 +00:00
Owen Anderson
b54b315251 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().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40014 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-18 19:54:15 +00:00
Reid Spencer
845b31de0c Unbreak the build by putting calls to free into the implementation file and
having that implementation file #include <cstdlib>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39952 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-17 02:16:12 +00:00
Owen Anderson
1629a1fa87 Use realloc() to (potentially) resize the contents of SmallPtrSet in place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39926 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-16 21:27:44 +00:00
Nick Lewycky
28753f8df2 Clarify the language. Pointed out by Duncan Sands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39857 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-14 17:41:03 +00:00
Nick Lewycky
377b1190cb Add alternate ConstantRange intersection algorithm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39851 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-14 02:51:34 +00:00
Owen Anderson
69b5d12676 Make the assignment operator for SmallPtrSet much faster for normal cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38474 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09 22:27:20 +00:00
Owen Anderson
4d6f96d699 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38470 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09 20:59:01 +00:00
Owen Anderson
da8ebc6b43 Fix an error in the assignment operator that was causing an infinite loop in GVNPRE.cpp.
Patch by Chis Lattner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38467 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09 18:51:15 +00:00
Chris Lattner
91f0158d4d implement operator= for smallptrset
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38460 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09 16:54:03 +00:00
Gabor Greif
a99be51bf5 Here is the bulk of the sanitizing.
Almost all occurrences of "bytecode" in the sources have been eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37913 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05 17:07:56 +00:00
Nick Lewycky
ea332946d3 Fix undefined behaviour reported by the new --enable-expensive-checks option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37829 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-01 03:06:30 +00:00
Owen Anderson
6394e5e4fd Fix a bug in SmallPtrSet that was causing GVNPRE to enter an infinite loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37697 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-22 00:11:18 +00:00
Chris Lattner
61766cae0b 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37696 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-21 23:23:32 +00:00
Nick Lewycky
ae5eb7accf Fix edge case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37532 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-09 04:20:33 +00:00
Dale Johannesen
81da02b553 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37285 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 17:14:46 +00:00
Reid Spencer
20a4c23bcc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37242 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-19 00:29:55 +00:00
Reid Spencer
fb0709a180 Get rid of leading zeros in the output of toString.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37175 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 19:23:02 +00:00
Reid Spencer
02ae8b78ff For lshr by 0 bits, just return *this as a short cut. This also prevents
undefined behavior when the width > 64 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37153 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 06:26:29 +00:00
Reid Spencer
6551dcdd8a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37111 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 19:18:22 +00:00
Reid Spencer
69944e85aa Make the results for the rotate functions correct when rotateAmt == 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37026 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-14 00:15:28 +00:00
Reid Spencer
19dc32a2d4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37025 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-13 23:44:59 +00:00
Reid Spencer
92c7283500 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37010 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-12 18:01:57 +00:00
Chris Lattner
a24b04e9e5 fix a memory leak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36981 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 00:43:26 +00:00
Jeff Cohen
0fea8ebb4a Unbreak VC++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36901 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-07 15:21:46 +00:00
Chris Lattner
5499da8833 Enhance MemoryBuffer to return error messages in strings if they occur.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36899 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 23:32:36 +00:00
Chris Lattner
9e66233361 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36876 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 19:10:47 +00:00
Chris Lattner
d6f595946d remove libbzip2, it is dead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36875 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 19:05:34 +00:00
Chris Lattner
73a978a753 don't build bzip2 for now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36871 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 09:31:32 +00:00
Chris Lattner
dfa8d8c6ee disable this for now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36870 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 09:31:06 +00:00
Chris Lattner
82e791dc42 Fix MemoryBuffer::getFile to return null if it has an error opening the
file instead of aborting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 07:24:46 +00:00
Chris Lattner
82493289e0 This is a patch to fix a compile error in STLExtras.h, and
a bug in GraphWriter.cpp.

Patch by Florian Brandner


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36684 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-03 18:32:10 +00:00
Chris Lattner
a5ae15ecb7 silence some annoying gcc 4.3 warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36680 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-03 18:15:36 +00:00
Jeff Cohen
930c0fead9 Fix MemoryBuffer breakage correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36561 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-29 14:43:31 +00:00
Jeff Cohen
9bc406019e Unbreak build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36559 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-29 14:21:44 +00:00
Chris Lattner
333ffd4abf Add a new memorybuffer class, to unify all the file reading code in the system
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36553 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-29 06:58:52 +00:00
Zhou Sheng
c125c00e68 Using APInt more efficiently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36475 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-26 16:42:07 +00:00
Jeff Cohen
ac58a16f85 Fix PR1329.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36016 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 21:50:21 +00:00
Reid Spencer
0468ab3025 We want the number of bits needed, not the power of 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35977 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 00:00:10 +00:00
Reid Spencer
57ae4f5f01 Implement a getBitsNeeded method to determine how many bits are needed to
represent a string in binary form by an APInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35968 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 19:19:07 +00:00
Zhou Sheng
daacf22537 Make the apint construction more effective.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35960 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 05:57:32 +00:00
Chris Lattner
69d6f1358c 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35935 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-12 00:36:29 +00:00
Chris Lattner
159b0a4340 Fix PR1318 by reacting appropriately to a mutating option list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35905 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 15:35:18 +00:00
Reid Spencer
2cd43e402a Fix an approximate calculation in an assertion not to give false negatives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35901 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 13:00:04 +00:00
Reid Spencer
c74b461507 For PR1291:
Change uses of sys::Path class to sys::PathWithStatus in those places where
the file status information is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35743 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 18:53:16 +00:00
Nick Lewycky
e32157c609 Add signExtend to ConstantRange, to complement zeroExtend and truncate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35733 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 15:41:33 +00:00
Chris Lattner
ee2b32082e Fix a bug in my earlier commit which exposed positional options backwards.
This fixes llvm-ar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35727 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 05:38:53 +00:00
Chris Lattner
9878d6ae3a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35701 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-06 21:06:55 +00:00
Chris Lattner
af035f3460 remove the dead removeArgument method, rename Options to OptionsMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35690 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-05 21:58:17 +00:00
Chris Lattner
12ba806c5d stringmap memory managed with malloc now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35666 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 17:24:28 +00:00
Chris Lattner
d2f197da59 use calloc instead of new/memset, it is more efficient
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35644 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 00:44:31 +00:00
Chris Lattner
794a014809 Extend StringMap to support being initialized as completely empty. When
initialized this way, they do not do a malloc to allocate their buckets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35642 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 00:29:37 +00:00
Chris Lattner
ef4c916193 greatly reduce hte default size of stringmap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 22:15:38 +00:00
Nick Lewycky
9babd0e0f2 Implement union of wrapped sets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35534 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 03:47:44 +00:00
Reid Spencer
8475ec068c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35476 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-29 19:05:44 +00:00
Reid Spencer
5ba2b702c2 For PR789:
Updates for change in interface of getFileStatus method of sys::Path class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35458 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-29 16:48:16 +00:00
Zhou Sheng
6dbe233959 Fix a bug in getAllOnesValue() which broke
some test cases for bitwidth > 64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35232 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-21 04:34:37 +00:00
Jeff Cohen
09dfd8e19d Fix (and simplify) 48-bit byte swap.
Get pos/neg infinity the correct way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35223 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-20 20:42:36 +00:00
Reid Spencer
adf2a206ec Fix coding standards violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35189 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-19 21:19:02 +00:00
Reid Spencer
3a34137548 Implement extension of sign bits for negative values in the uint64_t
constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35180 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-19 20:37:47 +00:00
Reid Spencer
4fd8606791 Revert the last patch as it violates the conditions of sext/zext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35068 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-12 18:37:25 +00:00
Zhou Sheng
7d820f57e2 For APInt::z/sext(width), if width == BitWidth, just return *this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35065 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-12 17:47:45 +00:00
Nick Lewycky
3400e6af6b Add getter methods for the extremes of a ConstantRange.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35056 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-10 15:54:12 +00:00
Jeff Cohen
ca5183d445 Unbreak VC++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-05 00:00:42 +00:00
Reid Spencer
46f9c94bdd Fix ashr for bitwidths > 64. This is now validated up to 1024 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34852 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 22:39:11 +00:00
Reid Spencer
f09aef7698 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34834 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 04:21:55 +00:00
Nick Lewycky
c6a28fcf5d Implement unionWith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34833 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 03:33:05 +00:00
Reid Spencer
9bf94a4a9f Add a FIXME
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34828 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 02:01:34 +00:00
Reid Spencer
36184ed4cd 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".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34825 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 01:19:42 +00:00
Reid Spencer
295e40aa5c Combine two lines that can be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34818 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 23:30:25 +00:00
Reid Spencer
4e1e87f09c Make the static table of results in sqrt const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34791 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 17:47:31 +00:00
Reid Spencer
68e2300ad9 Add methods for bit width modification: sextOrTrunc, zextOrTrunc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34789 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 17:15:32 +00:00
Reid Spencer
a6e8a955d6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34782 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 07:54:15 +00:00
Reid Spencer
b5ca2cd509 Use a real table in sqrt to shorten and quicken the code.
Thanks for the idea Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34779 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 06:23:32 +00:00
Reid Spencer
af8fb19846 Add a square root function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34775 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 05:39:56 +00:00
Reid Spencer
bb626a6751 Move ConstantRange class to lib/Support from lib/Analysis and make its
interface not depend on Type or ICmpInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34761 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 22:02:48 +00:00
Reid Spencer
581b0d453a For PR1205:
Remove ConstantInt from ConstantRange interface and adjust its users to
compensate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34758 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 19:57:34 +00:00
Reid Spencer
dc5c159701 For PR1205:
First round of ConstantRange changes. This makes all CR constructors use
only APInt and not use ConstantInt. Clients are adjusted accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34756 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 18:57:32 +00:00
Reid Spencer
663e711dc2 For PR1205:
Convert ConstantRange class to use APInt internally as its value type for
the constant range, instead of ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34745 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 17:36:23 +00:00
Reid Spencer
94900774ad Make the trunc/sext/zext methods return APInt& so that these operations
can be chained together with other operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34743 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 17:34:32 +00:00
Reid Spencer
ff60576646 Fix a bug in RoundDoubleToAPInt where it would force the size to 64 bits
instead of honoring the client's requested bit width.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34712 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 01:30:08 +00:00
Reid Spencer
f5c0fd9e16 Join two lines that can be joined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34705 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 23:49:07 +00:00
Reid Spencer
681dcd14e9 Implement countLeadingOnes() and getMinSignedBits(). This helps to minimize
the bit width of negative numbers by computing the minimum bit width for a
negative value. E.g. 0x1800000000000000 could be just 0x8000000000000000


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34695 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 21:59:26 +00:00
Reid Spencer
66ed1099ff Improve APInt interface:
1. Add unsigned and signed versions of methods so a "bool" argument doesn't
   need to be passed in.
2. Make the various getMin/getMax functions all be inline since they are
   so simple.
3. Simplify sdiv and srem code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34680 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 20:24:31 +00:00
Reid Spencer
96d91372fd Conform to single person attribution in file comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34678 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 19:31:09 +00:00
Reid Spencer
1fa111e8d4 1. Fix three serious bugs in the comparison code.
2. Change RoundDoubleToAPInt to take a bit width parameter. Use that
   parameter to limit the bit width of the result.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34673 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 18:23:40 +00:00
Reid Spencer
b4d8ae5dfb Get rid of extraneous // in file comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34662 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 07:35:18 +00:00
Reid Spencer
30f44f3287 Simplify and document RoundDoubleToAPInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34648 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 01:28:10 +00:00
Reid Spencer
9ac44113a8 1. Make sure all delete operators of arrays use the array form of delete.
2. Rewrite operator=(const APInt& RHS) to allow the RHS to be a different
   bit width than the LHS. This makes it possible to use APInt as the key
   of a DenseMap, as needed for the IntConstants map in Constants.cpp
3. Fix operator=(uint64_t) to clear unused bits in case the client assigns
   a value that has more bits than the APInt allows.
4. Assert that bit widths are equal in operator==
5. Revise getHashValue() to put the bit width in the low order six bits.
   This should help to make i1 0, i2 0, ... i64 0 all distinct in the
   IntConstants DenseMap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34646 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 23:38:21 +00:00
Reid Spencer
794f4725b8 Implement the getHashValue method.
Fix toString use of getValue to use getZExtValue()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34642 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 21:02:27 +00:00
Reid Spencer
9d1ae8fabe Re-enable this. The header was committed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34634 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 08:10:54 +00:00
Chris Lattner
ab143beb93 another missing header :( :( :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 07:51:00 +00:00
Reid Spencer
47fbe9e00c 1. Remove redundant calls to clearUsedBits().
2. Fix countTrailingZeros to use a faster algorithm.
3. Simplify sext() slightly by using isNegative().
4. Implement ashr using word-at-a-time logic instead of bit-at-a-time
5. Rename locals named isNegative so they don't clash with method name.
6. Fix fromString to compute negated value correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34629 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 07:44:38 +00:00
Reid Spencer
ba81c2b871 Rewrite lshr to not do bit by bit copy but to copy and shift whole words.
This makes it much more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34618 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 01:19:48 +00:00
Reid Spencer
f30b1885ae Fix sext operation. Shifting by zero would leave an incorrect mask.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34617 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 23:54:00 +00:00
Reid Spencer
9eec241347 1. Fix the flip() method to correctly flip all words of the APInt.
2. Implement the trunc, sext, and zext operations.
3. Improve fromString to accept negative values as input.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34616 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 23:44:53 +00:00
Reid Spencer
5d0d05c9b8 1. Provide more detail in file comment.
2. Move comments for methods to .h file, delete them in .cpp file.
3. All places that were doing manual clear of high order bits now call the
   clearUnusedBits() method in order to not depend on undefined behavior
   of the >> operator when the number of bits shifted equals the word size.
4. Reduced # of loc by using the new result of clearUnusedBits() method.
5. Simplified logic (decreased indentation) in a few places.
6. Added code comments to larger functions that needed them.
7. Added FIXME notes about weak implementations of things (e.g. bit-by-bit
   shift right is sub-optimal).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34603 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 19:32:03 +00:00
Reid Spencer
31d16b039a Allow this to compile now that the header file is checked in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34581 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 07:30:14 +00:00
Chris Lattner
0f07e55312 this doesn't compile, disable it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34571 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 02:32:44 +00:00
Reid Spencer
24c4a8f548 Clean up lshr and ashr to coding standards.
Handle the single word cases for shiftAmt == BitWidth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34569 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 01:56:07 +00:00
Reid Spencer
438d71eea4 Whoops, last word with bits in large shift left wasn't correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34565 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 01:08:58 +00:00
Reid Spencer
8755380fff Fix the > 64 bits case for left shift.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34564 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 00:56:44 +00:00
Reid Spencer
1050ec5cc4 Fix the remainder shifting in KnuthDiv.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34562 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 20:38:01 +00:00
Reid Spencer
5bce8547f3 1. Fix a bug in fromString for the <= 64bits case
2. Fix shl when shiftAmount == BitWidth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34560 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 20:19:37 +00:00
Reid Spencer
610fad85d2 1. Fix last bug in KnuthDiv. All divide tests pass up to 1024 bits now.
2. Clean up comments, style, coding standards, etc.
3. Simplify a constructor.

Extended testing revealed some additional bugs in shifting. I'll fix these
tomorrow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34559 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 10:01:42 +00:00
Reid Spencer
9d6c919efe 1. Make internal functions take const arguments where they should, just
to be safe.
2. Make internal functions that return a carry/borrow return bool instead
   of uint64_t because the carry/borrow can only be in range [0,1].
3. Assert that the pointers to KnuthDiv are all different so that the
   result and operands can't overlap.
4. Add debug output to KnuthDiv function.
5. Fix a problem with KnuthDiv by separating the b's complement operation
   from the subtraction borrow operation. This fixes a wide range of
   division problems, but alas, not all of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34554 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 03:58:46 +00:00
Chris Lattner
34aae111ff remove folding set debug output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34549 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 01:41:48 +00:00
Chris Lattner
d675b8347d Avoid TBAA issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34539 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23 22:31:24 +00:00
Reid Spencer
9290463760 1. Fix a carry out problem in add if destination and x point to the same
memory (as done in fromString).
2. Implement Knuth divide more closely to what is recommended in his book.
3. Fix computation of the remainder for Knuth Divide (bad shifting).
4. Remove some cruft from the file


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34518 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23 01:57:13 +00:00
Reid Spencer
15aab8a723 When converting from 64 to 32-bits, use the actual number of words to
extract the value, not the number of words implied by the active bits.
This fixes numerous, but not all divide bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34484 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22 00:58:45 +00:00
Reid Spencer
ab2b2c827c Fix countLeadingZeros in the case that the bitwidth evenly divides the
word size. This fixes all reads of uninitialized data (buffer over read)
and makes APInt.cpp memory clean, per valgrind. The only remaining
problem is division in a few cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34483 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22 00:22:00 +00:00
Reid Spencer
e0cdd3349d Reorganize some code to make it clearer, avoid a few uninitialized memory
reads, and reduce the number of temporary APInt instances we construct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34467 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 08:21:52 +00:00
Reid Spencer
60c0a6a74b Fix the carry in addition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34465 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 05:44:56 +00:00
Reid Spencer
385f7547b9 1. Add a dump() method for faster debugging.
2. Change 0 initialization of union to larger component so all is zeroed.
3. Fix the borrow logic in subtraction so it works for > 128 bits.
4. Rewrite fromString to use a simpler but correct algorithm and also to
   not set the bit width contrary to the user's request.
5. Optimize toString a bit by making it only do one Knuth divide per
   iteration instead of two.

With these changes, all arithmetic passes (verified by pari/GP) up to
1024 bits except for certain division cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34463 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 03:55:44 +00:00
Reid Spencer
e549c4940c Fix countLeadingZeros to actually return the correct number.
Fix toString to correctly return "0" for zero valued APInts over 128 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34459 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 00:29:48 +00:00
Reid Spencer
54362ca095 Make long addition and subtraction work. Speed things up by using internal
functions more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34458 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 23:40:25 +00:00
Reid Spencer
61eb180a53 Clean up variable names in operator*.
Attempt #3 for getting a portable INFINITY value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34454 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 20:42:10 +00:00
Reid Spencer
580546a82b Use INFINITY macro from math.h instead of constructing hex floating point
constants (avoids warnings).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34452 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 18:29:12 +00:00
Reid Spencer
9c0696f153 First version that can process arith.cpp test case up to 1024 bits:
1. Ensure pVal is set to 0 in each constructor.
2. Fix roundToDouble to make correct calculations and not read beyond the
   end of allocated memory.
3. Implement Knuth's "classical algorithm" for division from scratch and
   eliminate buffer overflows and uninitialized mememory reads. Document
   it properly too.
4. Implement a wrapper function for KnuthDiv which handles the 64-bit to
   32-bit conversion and back. It also implement short division for the
   n == 1 case that Knuth's algorithm can't handle.
5. Simplify the logic of udiv and urem a little, make them exit early, and
   have them use the "divide" wrapper function to perform the division
   or remainder operation.
6. Move the toString function to the end of the file, closer to where
   the division functions are located.

Note: division is still broken for some > 64 bit values, but at least it
      doesn't crash any more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34449 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 08:51:03 +00:00
Chris Lattner
d283566319 Not all managedstatics need object pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34444 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 06:18:57 +00:00
Reid Spencer
f99a0ac0dc 1. Fix some indentation and variable names in the get{Min,Max}Value methods.
2. Implement toString for power-of-2 radix without using divide and always
   printing full words. This allows hex/binary to look at the bit
   respresentation of the APInt as well as avoid bugs in divide.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34396 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 22:29:05 +00:00
Reid Spencer
a58f05847c 1. Use APINT_WORD_SIZE instead of sizeof(uint64_t)
2. Teach slt about signedness.
3. Teach roundToDouble to properly sign extend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34391 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 20:09:41 +00:00
Reid Spencer
af0e956cef 1. Remove dead code (lshift function).
2. Consolidate memory allocation into just two inline functions.
3. Convert "unsigned" to uint32_t to gaurantee its size.
4. Eliminate magic constants and replace with symbolic equivalent.
5. Improve code documentation slightly.
6. Simplify the logical operator code because bitwidths must be the same.
7. Fix indentation per coding standards.
8. Use exit-early style to reduce indentation in several functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34389 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 18:38:44 +00:00
Reid Spencer
f2c521c58d Make add_1 exit early if carry is 0.
Fix line breaks and 80 cols violation.
Simplify operator^= since bitwidths must be the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34388 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 06:39:42 +00:00
Reid Spencer
443b570149 Implement signed output for toString.
Fix bugs in countLeadingZeros and countTrailingZeros.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34386 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 00:44:22 +00:00
Reid Spencer
c72f28042b Fix some bugs in division logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-17 22:38:07 +00:00
Reid Spencer
5e0a851ed3 Move static functions closer to their usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34363 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-17 03:16:00 +00:00
Reid Spencer
71bd08f9be Clean up the divide and remainder logic a bit (exit early). Use more
meaningful variable names. Add comments to document the flow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34362 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-17 02:07:07 +00:00
Reid Spencer
cd6f2bfc26 Fix bugs introduced by constructor parameter order change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34357 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-17 00:18:01 +00:00
Reid Spencer
e81d2dad2c Review changes:
1. Function style changes.
2. 80-col violations.
3. Better names for things.
4. Arrange constructors so they all take bit width first.
5. Add named signed and unsigned comparison functions and remove the
   corresponding operators.
6. Remove operator&& and operator|| but provide a getBoolValue function which
   converts to bool as comparison against 0. This allows the normal && and
   || operators to be used as if (X.getBoolValue() && Y.getBoolValue())

Note: this still doesn't function 100% yet. I'm working on the bugs now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-16 22:36:51 +00:00
Anton Korobeynikov
9ba8a76f8b Add possibility to set memory limit for binaries run via libSystem. This
is especially needed for bugpoint. This partly implements PR688


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34349 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-16 19:11:07 +00:00
Zhou Sheng
b04973edfa Fix some buges:
1. Make getMinValue() returns the right value.
2. Fix the ByteSwap() crash problem.
3. Make Postfix increment work correctly.
4. Fix some bugs in LogBase2, Hi/LoBits and UDiv.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34304 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 06:36:31 +00:00
Reid Spencer
879dfe1c9c Use brute-force algorithm for to_string. It doesn't have to be efficient
at this point, it just needs to work so we can test things reliably.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34262 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-14 02:52:25 +00:00
Reid Spencer
db3faa64ee Make some minor improvements to APInt:
1. Make all the operators use uppercase
2. Rename APIntRoundToDouble method just RoundToDouble, the APInt is
   redundant.
3. Turn the class on for compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34253 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-13 22:41:58 +00:00
Zhou Sheng
d93f00c35d 1. Make APInt::shl work correctly and more efficiently.
2. Add functions to support the numberical conversion between APInt and
   double/float.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34201 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 20:02:55 +00:00
Chris Lattner
44dcd01cb3 Add support for removing elements out of StringMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34185 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 20:58:00 +00:00
Chris Lattner
b5bb9f5b5c Replace the ugly FindValue method with STL-like find methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34183 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 19:49:41 +00:00
Chris Lattner
360cac8fef remove support for stringmap visitors now that iterators exist.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34180 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 08:22:15 +00:00
Chris Lattner
a86559ec42 add support for iterators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34179 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 08:20:35 +00:00
Nick Lewycky
3e051647c0 Fix comments to match names of functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34173 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 00:58:49 +00:00
Zhou Sheng
ff4304f824 Eliminates friend function declaration inside APInt, instead, adds public
methods as those global function's internal implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34083 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-09 07:48:24 +00:00
Chris Lattner
bb28a81ba3 Rename CStringMap -> StringMap, since it now supports nul characters in the
strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34064 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-08 19:20:57 +00:00
Chris Lattner
ee182422ff Allow cstringmap to contain strings with nul characters in them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34062 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-08 19:08:37 +00:00
Zhou Sheng
a05eaa658e Switched this file on accidently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34054 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-08 16:45:48 +00:00
Zhou Sheng
0b706b18bd As Chris and Reid suggested, remove "isSigned" field from APInt, instead,
add some signed/unsigned arithmetic operation functions into APInt.h to
handle the signed/unsigned issue. These functions will be defined inside a
namespace "APIntOps" which is inside llvm namespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34053 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-08 14:35:19 +00:00
Zhou Sheng
a3832fd46a As Chris suggested, fixed some problems. (This is the first part)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33989 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-07 06:14:53 +00:00
Chris Lattner
e237cf934f do not let the table fill up with tombstones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33973 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-07 01:11:25 +00:00
Zhou Sheng
353815dc19 As Reid suggested, fixed some problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33955 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-06 06:04:53 +00:00
Chris Lattner
6ad4c148cf Disable this for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33953 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-06 05:38:37 +00:00
Zhou Sheng
fd43dcfc57 Add a class APInt to represent arbitrary precision constant integral values.
It is a functional replacement for common case integer type like "unsigned",
"uint64_t", but also allows non-byte-width integer type and large integer
value types such as 3-bits, 15-bits, or more than 64-bits of precision. For
more details, see pr1043.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33951 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-06 03:00:16 +00:00
Chris Lattner
7ef856dfad Fix a bug in smallptrset::erase: in the small case, return true if the
element was in the set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33931 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-05 23:10:31 +00:00
Chris Lattner
e4116f8553 Encode small integers more densely in foldingset, avoiding overflowing the SmallVector as often.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33864 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-04 01:48:10 +00:00
Chris Lattner
0de4439ad1 improve comments, add an assertion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33750 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-01 05:33:21 +00:00
Devang Patel
aed293dfba Add PrintVersionMessage() that tools can use to print version number
without exiting program.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33737 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-01 01:43:37 +00:00
Reid Spencer
9e693eb499 Add some debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33718 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31 21:27:38 +00:00
Chris Lattner
b85210f508 minor cleanups. Fix off-by-one in accounting the number of nodes when the
table grows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33698 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31 06:04:41 +00:00
Chris Lattner
3cab071f6f reformat comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33675 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-30 23:16:22 +00:00
Chris Lattner
0b930852cf implement SmallPtrSet::erase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33581 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-27 07:59:10 +00:00