Neil Booth
7a7bc0f724
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42734 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 12:10:57 +00:00
Neil Booth
643ce59495
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42733 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 12:07:53 +00:00
Neil Booth
ccf596a53e
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42732 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 11:45:55 +00:00
Neil Booth
33d4c92e78
combineLostFractions does not need to be a member function
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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.
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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.
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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.
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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
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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.
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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.
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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
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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
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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.
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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.
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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
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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
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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.
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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
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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.
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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.
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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
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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
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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
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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
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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
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(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
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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
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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.
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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
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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.
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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).
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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.
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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.
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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.
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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.
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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.
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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()
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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.
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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
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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
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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
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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.
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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
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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.
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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.
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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.
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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
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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
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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.
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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.
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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.
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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.
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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
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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.
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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
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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.
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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.
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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.
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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:
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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.
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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
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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
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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.
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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
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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
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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.
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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
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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
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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
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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.
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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.
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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
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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
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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
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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
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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
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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
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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
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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.
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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.
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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
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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.
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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.
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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.
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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
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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.
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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
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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.
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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.
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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:
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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.
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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.
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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.
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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.
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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
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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
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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
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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.
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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.
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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:
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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:
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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
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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.
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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
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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.
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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
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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
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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.
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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.
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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.
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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
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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.
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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.
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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
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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:
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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:
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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:
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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
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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
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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.
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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
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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:
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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 :( :( :(
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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().
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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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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
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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.
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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