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3ac68a90f2
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582 Commits

Author SHA1 Message Date
Chris Lattner
3ac68a90f2 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
e03bd9ddbb Fix edge case. 
llvm-svn: 37532
 2007-06-09 04:20:33 +00:00
Dale Johannesen
fe0fe14411 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
fe3c213178 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
fe3fc94a44 Get rid of leading zeros in the output of toString. 
llvm-svn: 37175
 2007-05-17 19:23:02 +00:00
Reid Spencer
39e03f53ca 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
1ec1e07949 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
3dab764309 Make the results for the rotate functions correct when rotateAmt == 0. 
llvm-svn: 37026
 2007-05-14 00:15:28 +00:00
Reid Spencer
a17d02ad08 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
8c2e0f85eb 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
b601311b07 fix a memory leak 
llvm-svn: 36981
 2007-05-11 00:43:26 +00:00
Jeff Cohen
2e8263c013 Unbreak VC++ build. 
llvm-svn: 36901
 2007-05-07 15:21:46 +00:00
Chris Lattner
112d26a164 Enhance MemoryBuffer to return error messages in strings if they occur. 
llvm-svn: 36899
 2007-05-06 23:32:36 +00:00
Chris Lattner
4dca43cc6d 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)

llvm-svn: 36876
 2007-05-06 19:10:47 +00:00
Chris Lattner
71eb8d5e89 remove libbzip2, it is dead 
llvm-svn: 36875
 2007-05-06 19:05:34 +00:00
Chris Lattner
5bd1b5b32d don't build bzip2 for now 
llvm-svn: 36871
 2007-05-06 09:31:32 +00:00
Chris Lattner
5f94a8492f disable this for now 
llvm-svn: 36870
 2007-05-06 09:31:06 +00:00
Chris Lattner
9fa29b4027 Fix MemoryBuffer::getFile to return null if it has an error opening the 
file instead of aborting.

llvm-svn: 36858
 2007-05-06 07:24:46 +00:00
Chris Lattner
49b1ec44eb This is a patch to fix a compile error in STLExtras.h, and 
a bug in GraphWriter.cpp.

Patch by Florian Brandner

llvm-svn: 36684
 2007-05-03 18:32:10 +00:00
Chris Lattner
d363044771 silence some annoying gcc 4.3 warnings 
llvm-svn: 36680
 2007-05-03 18:15:36 +00:00
Jeff Cohen
7cfc4b404f Fix MemoryBuffer breakage correctly. 
llvm-svn: 36561
 2007-04-29 14:43:31 +00:00
Jeff Cohen
349056458a Unbreak build. 
llvm-svn: 36559
 2007-04-29 14:21:44 +00:00
Chris Lattner
4749cca517 Add a new memorybuffer class, to unify all the file reading code in the system 
llvm-svn: 36553
 2007-04-29 06:58:52 +00:00
Zhou Sheng
8c150f133c Using APInt more efficiently. 
llvm-svn: 36475
 2007-04-26 16:42:07 +00:00
Jeff Cohen
5a502fb622 Fix PR1329. 
llvm-svn: 36016
 2007-04-14 21:50:21 +00:00
Reid Spencer
84c2475e77 We want the number of bits needed, not the power of 2. 
llvm-svn: 35977
 2007-04-14 00:00:10 +00:00
Reid Spencer
6e7854339e Implement a getBitsNeeded method to determine how many bits are needed to 
represent a string in binary form by an APInt.

llvm-svn: 35968
 2007-04-13 19:19:07 +00:00
Zhou Sheng
dedfc40044 Make the apint construction more effective. 
llvm-svn: 35960
 2007-04-13 05:57:32 +00:00
Chris Lattner
9564abbfb5 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

llvm-svn: 35935
 2007-04-12 00:36:29 +00:00
Chris Lattner
32f6730bb1 Fix PR1318 by reacting appropriately to a mutating option list. 
llvm-svn: 35905
 2007-04-11 15:35:18 +00:00
Reid Spencer
9b497be3c4 Fix an approximate calculation in an assertion not to give false negatives. 
llvm-svn: 35901
 2007-04-11 13:00:04 +00:00
Reid Spencer
875a2bc4db For PR1291: 
Change uses of sys::Path class to sys::PathWithStatus in those places where
the file status information is needed.

llvm-svn: 35743
 2007-04-07 18:53:16 +00:00
Nick Lewycky
ec51e934ef Add signExtend to ConstantRange, to complement zeroExtend and truncate. 
llvm-svn: 35733
 2007-04-07 15:41:33 +00:00
Chris Lattner
c1bce783e8 Fix a bug in my earlier commit which exposed positional options backwards. 
This fixes llvm-ar.

llvm-svn: 35727
 2007-04-07 05:38:53 +00:00
Chris Lattner
0160bf7114 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.

llvm-svn: 35701
 2007-04-06 21:06:55 +00:00
Chris Lattner
d33f94f2d2 remove the dead removeArgument method, rename Options to OptionsMap. 
llvm-svn: 35690
 2007-04-05 21:58:17 +00:00
Chris Lattner
ed593d6789 stringmap memory managed with malloc now 
llvm-svn: 35666
 2007-04-04 17:24:28 +00:00
Chris Lattner
8a4ca643dd use calloc instead of new/memset, it is more efficient 
llvm-svn: 35644
 2007-04-04 00:44:31 +00:00
Chris Lattner
dbf6a79a71 Extend StringMap to support being initialized as completely empty. When 
initialized this way, they do not do a malloc to allocate their buckets.

llvm-svn: 35642
 2007-04-04 00:29:37 +00:00
Chris Lattner
59994ede6b greatly reduce hte default size of stringmap. 
llvm-svn: 35632
 2007-04-03 22:15:38 +00:00
Nick Lewycky
03f9c0ffc9 Implement union of wrapped sets. 
llvm-svn: 35534
 2007-04-01 03:47:44 +00:00
Reid Spencer
4269ae1274 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.

llvm-svn: 35476
 2007-03-29 19:05:44 +00:00
Reid Spencer
50b83584c4 For PR789: 
Updates for change in interface of getFileStatus method of sys::Path class.

llvm-svn: 35458
 2007-03-29 16:48:16 +00:00
Zhou Sheng
427b6bec97 Fix a bug in getAllOnesValue() which broke 
some test cases for bitwidth > 64.

llvm-svn: 35232
 2007-03-21 04:34:37 +00:00
Jeff Cohen
21c7fc9c1f Fix (and simplify) 48-bit byte swap. 
Get pos/neg infinity the correct way.

llvm-svn: 35223
 2007-03-20 20:42:36 +00:00
Reid Spencer
41d254c7f4 Fix coding standards violation. 
llvm-svn: 35189
 2007-03-19 21:19:02 +00:00
Reid Spencer
b7d0a60da1 Implement extension of sign bits for negative values in the uint64_t 
constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35180
 2007-03-19 20:37:47 +00:00
Reid Spencer
7be576b4b0 Revert the last patch as it violates the conditions of sext/zext. 
llvm-svn: 35068
 2007-03-12 18:37:25 +00:00
Zhou Sheng
0145067d85 For APInt::z/sext(width), if width == BitWidth, just return *this. 
llvm-svn: 35065
 2007-03-12 17:47:45 +00:00
Nick Lewycky
2af4a3ab17 Add getter methods for the extremes of a ConstantRange. 
llvm-svn: 35056
 2007-03-10 15:54:12 +00:00