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771 Commits

Author SHA1 Message Date
Devang Patel
00064e1bab Do not hide APInt::dump() inside #ifndef NDEBUG. 
llvm-svn: 42068
 2007-09-17 22:24:00 +00:00
Chris Lattner
6395e5060d fix a gcc warning: comparison between signed and unsigned integer expressions 
llvm-svn: 41972
 2007-09-14 22:57:00 +00:00
Dale Johannesen
98d3a08d8f 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).

llvm-svn: 41967
 2007-09-14 22:26:36 +00:00
Dan Gohman
14cf78cde5 And an FoldingSetImpl::NodeID::AddInteger overload for int64_t, to avoid 
ambiguity.

llvm-svn: 41960
 2007-09-14 20:48:42 +00:00
Dan Gohman
58c468fb09 Remove spurious consts. This fixes warnings with compilers that 
are strict about such things.

llvm-svn: 41956
 2007-09-14 20:08:19 +00:00
Dale Johannesen
521988b604 Compensate for partCount change in Bogus definition 
(could break hash table in ConstantFP)

llvm-svn: 41874
 2007-09-12 01:22:05 +00:00
Dale Johannesen
245dceb06d 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).

llvm-svn: 41858
 2007-09-11 18:32:33 +00:00
Evan Cheng
ee8d9a0e81 Smarter Reset(). Instead of deallocating all memory regions and reallocate the 
first region, just deallocate all but the last region in the list.

llvm-svn: 41782
 2007-09-08 00:02:17 +00:00
Evan Cheng
3dba41bf37 Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor. 
llvm-svn: 41728
 2007-09-05 21:41:34 +00:00
Dale Johannesen
728687c423 Fix mod so it actually works. Fix conversions to 
native types to handle denormals correctly.

llvm-svn: 41726
 2007-09-05 20:39:49 +00:00
Dale Johannesen
689d17d282 Oops, should be part of 41664; won't work very well without this piece. 
llvm-svn: 41665
 2007-08-31 23:35:31 +00:00
Dale Johannesen
3cf889f75e Enhance APFloat to retain bits of NaNs (fixes oggenc). 
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.

llvm-svn: 41632
 2007-08-31 04:03:46 +00:00
Dale Johannesen
d246b2ca5c 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.

llvm-svn: 41587
 2007-08-30 00:23:21 +00:00
Dale Johannesen
bdea32d812 Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual. 
This means backing out the preceding change to Constants.cpp, alas.

llvm-svn: 41378
 2007-08-24 22:09:56 +00:00
Dale Johannesen
918c33c67a Revised per review feedback from previous patch. 
llvm-svn: 41353
 2007-08-24 05:08:11 +00:00
Chris Lattner
3da18eb22a silence some warnings in an optimized build. 
llvm-svn: 41352
 2007-08-24 03:02:34 +00:00
Dale Johannesen
a719a60609 Change internal representation of ConstantFP to use APFloat. 
Interface to rest of the compiler unchanged, as yet.

llvm-svn: 41348
 2007-08-24 00:56:33 +00:00
Chris Lattner
b0f158cfdf rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned() 
Add an APSInt::toString() method.

llvm-svn: 41309
 2007-08-23 05:15:32 +00:00
Chris Lattner
fe02c1f97f initial checkin of Neil's APFloat work. 
llvm-svn: 41203
 2007-08-20 22:49:32 +00:00
Chris Lattner
6b69568f85 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!

llvm-svn: 41124
 2007-08-16 15:56:55 +00:00
Anton Korobeynikov
b61c63ecd0 Properly use const qualifiers 
llvm-svn: 41111
 2007-08-15 21:12:30 +00:00
Reid Spencer
155533cf73 Make getSTDIN return null if the standard input is empty, as the header file 
documentation implies and as its uses depend.

llvm-svn: 40939
 2007-08-08 20:01:58 +00:00
Reid Spencer
f13bcdc4a4 Escape some escapes that confuse doxygen. 
llvm-svn: 40850
 2007-08-05 19:33:11 +00:00
Chris Lattner
44f7d3aa0b 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.

llvm-svn: 40837
 2007-08-05 07:32:14 +00:00
Owen Anderson
49f037ac29 Allow SmallPtrSet to hold pointers to const data. 
llvm-svn: 40556
 2007-07-27 18:07:02 +00:00
Owen Anderson
4c54024319 Make the copy constructor of SmallPtrSet much faster. 
llvm-svn: 40474
 2007-07-24 21:31:23 +00:00
Owen Anderson
ee99010782 Remember to free the heap allocated array if we're not going to use it. 
llvm-svn: 40043
 2007-07-19 06:45:33 +00:00
Owen Anderson
e21f270858 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().

llvm-svn: 40014
 2007-07-18 19:54:15 +00:00
Reid Spencer
5060fd0fa3 Unbreak the build by putting calls to free into the implementation file and 
having that implementation file #include <cstdlib>.

llvm-svn: 39952
 2007-07-17 02:16:12 +00:00
Owen Anderson
81990a3fc3 Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
llvm-svn: 39926
 2007-07-16 21:27:44 +00:00
Nick Lewycky
ddc2f9ba57 Clarify the language. Pointed out by Duncan Sands. 
llvm-svn: 39857
 2007-07-14 17:41:03 +00:00
Nick Lewycky
61b4a265ee Add alternate ConstantRange intersection algorithm. 
llvm-svn: 39851
 2007-07-14 02:51:34 +00:00
Owen Anderson
e33356b18e Make the assignment operator for SmallPtrSet much faster for normal cases. 
llvm-svn: 38474
 2007-07-09 22:27:20 +00:00
Owen Anderson
3364abbb36 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.

llvm-svn: 38470
 2007-07-09 20:59:01 +00:00
Owen Anderson
aee901745d Fix an error in the assignment operator that was causing an infinite loop in GVNPRE.cpp. 
Patch by Chis Lattner.

llvm-svn: 38467
 2007-07-09 18:51:15 +00:00
Chris Lattner
85049a470e implement operator= for smallptrset 
llvm-svn: 38460
 2007-07-09 16:54:03 +00:00
Gabor Greif
e16561cd5d Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
 2007-07-05 17:07:56 +00:00
Nick Lewycky
5105adfcd1 Fix undefined behaviour reported by the new --enable-expensive-checks option. 
llvm-svn: 37829
 2007-07-01 03:06:30 +00:00
Owen Anderson
6d7b6f1ab8 Fix a bug in SmallPtrSet that was causing GVNPRE to enter an infinite loop. 
llvm-svn: 37697
 2007-06-22 00:11:18 +00:00
Chris Lattner
836e8f3f39 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

llvm-svn: 37696
 2007-06-21 23:23:32 +00:00
Nick Lewycky
d18b16034a Fix edge case. 
llvm-svn: 37532
 2007-06-09 04:20:33 +00:00
Dale Johannesen
82810c8a13 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.

llvm-svn: 37285
 2007-05-22 17:14:46 +00:00
Reid Spencer
b6af1aae35 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.

llvm-svn: 37242
 2007-05-19 00:29:55 +00:00
Reid Spencer
5c138133b7 Get rid of leading zeros in the output of toString. 
llvm-svn: 37175
 2007-05-17 19:23:02 +00:00
Reid Spencer
fffdf10566 For lshr by 0 bits, just return *this as a short cut. This also prevents 
undefined behavior when the width > 64 bits.

llvm-svn: 37153
 2007-05-17 06:26:29 +00:00
Reid Spencer
a93c981f66 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.

llvm-svn: 37111
 2007-05-16 19:18:22 +00:00
Reid Spencer
98ed7db7ab Make the results for the rotate functions correct when rotateAmt == 0. 
llvm-svn: 37026
 2007-05-14 00:15:28 +00:00
Reid Spencer
4c50b52f63 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.

llvm-svn: 37025
 2007-05-13 23:44:59 +00:00
Reid Spencer
81ee020f64 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.

llvm-svn: 37010
 2007-05-12 18:01:57 +00:00
Chris Lattner
436370bac8 fix a memory leak 
llvm-svn: 36981
 2007-05-11 00:43:26 +00:00