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34 Commits

Author SHA1 Message Date
Douglas Gregor
2eb65e292c Fix BitstreamReader's GetCurrentBitNo to return the correct bit number, and stop JumpToBit from covering up its mistakes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68648 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-08 22:26:47 +00:00
Chris Lattner
ae7dd8004e Add an API for the bitstream reader to read blobs and return 
them by reference, instead of packing each byte into a
smallvector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68486 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 02:56:46 +00:00
Chris Lattner
123f384879 allow clients to look up abbrev id's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 22:43:46 +00:00
Chris Lattner
dcd006bf7b add a new Blob encoding abbreviation for bitcode files that emits 
elements in a form that is efficient for the reader to just get a
pointer in memory and start reading.  APIs to do efficient reading
and writing are still todo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68465 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 21:50:39 +00:00
Chris Lattner
30910bf1c9 split ReadAbbreviatedLiteral out of ReadAbbreviatedField. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 21:37:10 +00:00
Chris Lattner
86bc23d5c1 reduce indentation with early-out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68462 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 21:34:58 +00:00
Dan Gohman
de551f91d8 Use CHAR_BIT instead of hard-coding 8 in several places where it 
is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 18:45:54 +00:00
Misha Brukman
d3ff4a188e Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 23:04:06 +00:00
Evan Cheng
34cd4a484e Fix more -Wshorten-64-to-32 warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 18:30:58 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Ted Kremenek
2a2a496aac Fixed potential bug where CurWord is not zeroed out in JumpToBit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-30 22:39:46 +00:00
Ted Kremenek
13faf5c13c Made Deserializer a friend class of BitstreamReader. 
Moved some of the logic in BitstreamReader::ExitBlock into a utility function
BitstreamReader::PopBlockScope. The latter is a private method. It will also
be called by Deserializer to manipulate the current "block scope."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43972 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-10 02:00:38 +00:00
Hartmut Kaiser
4d40b50743 Silenced a VC++ warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43276 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 00:06:31 +00:00
Chris Lattner
9850b57587 we aren't at the end of stream until we've consumed all the bytes AND all 
the bits in those bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36861 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 08:12:09 +00:00
Jeff Cohen
85a57910bd Make code more 64-bit aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36833 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 03:24:19 +00:00
Jeff Cohen
332376bc60 Unbreak VC++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36831 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 03:12:47 +00:00
Chris Lattner
048d0bd4c0 Fix a subtle bug that prevented round-tripping 470.lbm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36825 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 01:43:38 +00:00
Chris Lattner
02a13b5c50 minor bugfix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36777 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 07:20:34 +00:00
Chris Lattner
28e4c4c9b3 add a 6-bit encoding type for strings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36770 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 01:15:42 +00:00
Chris Lattner
e17b658c79 Implement support for globally associating abbrevs with block IDs, which 
relieves us from having to emit the abbrevs into each instance of the block.
This shrinks kc.bit from 3368K to 3333K, but will be a more significant win
once instructions are abbreviated.

The VST went from:

  Block ID #14 (VALUE_SYMTAB):
      Num Instances: 2345
         Total Size: 1.29508e+07b/1.61885e+06B/404713W
       Average Size: 5522.73b/690.342B/172.585W
          % of file: 48.0645
  Tot/Avg SubBlocks: 0/0
    Tot/Avg Abbrevs: 7035/3
    Tot/Avg Records: 120924/51.5667
      % Abbrev Recs: 100

to:

  Block ID #14 (VALUE_SYMTAB):
      Num Instances: 2345
         Total Size: 1.26713e+07b/1.58391e+06B/395978W
       Average Size: 5403.53b/675.442B/168.86W
          % of file: 47.5198
  Tot/Avg SubBlocks: 0/0
    Tot/Avg Abbrevs: 0/0
    Tot/Avg Records: 120924/51.5667
      % Abbrev Recs: 100

because we didn't emit the same 3 abbrevs 2345 times :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36767 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 00:17:00 +00:00
Chris Lattner
3c074f61ed add support for array abbreviations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36754 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-04 20:33:47 +00:00
Chris Lattner
a727d5502c minor cleanups. Add provisions for a new standard BLOCKINFO_BLOCK 
block type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-04 18:25:49 +00:00
Chris Lattner
299b2d2070 refcount BitCodeAbbrev objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-04 17:35:19 +00:00
Chris Lattner
2bbb703e4f several bitfixes to JumpToBit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36616 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 05:51:32 +00:00
Chris Lattner
90a5c7dbc1 add JumpToBit, an explicit init method, and a default ctor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36613 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 04:59:06 +00:00
Chris Lattner
8d89f1fbb6 add some helpers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36580 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-29 21:49:05 +00:00
Chris Lattner
a2d0ad4fe2 compute this value correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36575 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-29 19:49:58 +00:00
Chris Lattner
bd40a6d3ee add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36571 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-29 19:17:32 +00:00
Chris Lattner
107d80956d make this file self-contained 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36555 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-29 08:05:07 +00:00
Chris Lattner
aea2012433 implement reading of abbrevs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36366 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-23 18:57:58 +00:00
Chris Lattner
36d5e7d31b first part of implementation of abbrevs. The writer isn't fully there yet and the 
reader doesn't handle them at all yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36363 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-23 16:04:05 +00:00
Reid Spencer
7aaa4a5c09 Terminate with newline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36345 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-22 16:31:22 +00:00
Jeff Cohen
a0c96a068c Teach Visual Studio about Bitcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-22 15:00:52 +00:00
Chris Lattner
b35ca9db9c Define the content-independent interfaces to read/write bitcode files and 
the high-level interface to read/write LLVM IR bitcode files.

This is a work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36329 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-22 06:22:05 +00:00