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48635 Commits

Author SHA1 Message Date
Nick Lewycky 707663eda8 Disallow the construction of SCEVs with could-not-compute operands. Catch CNCs 
returned by BinomialCoefficient and don't try to operate with them. This
replaces the previous fix for PR2857.

llvm-svn: 57431
 2008-10-13 03:58:02 +00:00
Mikhail Glushenkov d3ec89e733 Add whitespace before a parenthesis. 
llvm-svn: 57430
 2008-10-13 02:46:01 +00:00
Mikhail Glushenkov 024f7cf859 Add a note on llvmc2 plugins + remove some trailing whitespace (my Emacs does this automatically). 
llvm-svn: 57429
 2008-10-13 02:08:34 +00:00
Chris Lattner c52af45304 calls can be supported. 
llvm-svn: 57428
 2008-10-13 01:59:13 +00:00
Chris Lattner e3df07e417 more notes 
llvm-svn: 57427
 2008-10-12 22:57:58 +00:00
Dale Johannesen cc98e28f37 Change TAG_ names to DW_TAG for gcc (testsuite) compatibility. 
llvm-svn: 57425
 2008-10-12 21:23:01 +00:00
Owen Anderson fe1f3d6e08 Fix a bug in live-in detection that caused lost-copy problems to show up. 
llvm-svn: 57424
 2008-10-12 20:39:30 +00:00
Chris Lattner c4d68546e3 add some more notes 
llvm-svn: 57423
 2008-10-12 19:47:48 +00:00
Chris Lattner 2824ba52c3 this was to be removed after 2.4 branched. 
llvm-svn: 57422
 2008-10-12 18:57:09 +00:00
Argyrios Kyrtzidis 9103317346 More const-ness goodness. 
llvm-svn: 57420
 2008-10-12 18:45:56 +00:00
Dale Johannesen bb5d04fc82 Remove "long" variants so these will pass on a 64-bit host. 
llvm-svn: 57418
 2008-10-12 18:40:49 +00:00
Argyrios Kyrtzidis 01622642d3 Improve the const-ness of a few methods. 
No functionality change.

llvm-svn: 57417
 2008-10-12 18:40:01 +00:00
Chris Lattner 6396952f37 add some notes 
llvm-svn: 57416
 2008-10-12 18:30:33 +00:00
Argyrios Kyrtzidis 3768ad6d58 Implement more efficient Decl <-> DeclContext conversions. 
When the static type on the Decl side is a subclass of DeclContext the compiler will use a "inlinable" static_cast, instead of always using an out-of-line function call.

Note, though, that the isa<> check still uses an out-of-line function call.

llvm-svn: 57415
 2008-10-12 16:14:48 +00:00
Anton Korobeynikov 46a9c01fff Update size of inst correctly with segment override. 
llvm-svn: 57414
 2008-10-12 10:30:11 +00:00
Owen Anderson de9812de43 Add special-case code to allow null-guards on calls to malloc. 
llvm-svn: 57413
 2008-10-12 08:10:46 +00:00
Owen Anderson f2699bb57d Make Escape Analysis work for any pointer. 
llvm-svn: 57412
 2008-10-12 07:33:29 +00:00
Owen Anderson 71cf4c440c Add EscapeAnalysis. 
llvm-svn: 57411
 2008-10-12 06:49:21 +00:00
Dale Johannesen ba074c0fed Change Dwarf comments starting with AT_ to DW_AT_ to 
match gcc.  Helps with the testsuite.

llvm-svn: 57410
 2008-10-12 06:20:47 +00:00
Chris Lattner f6a3bda65e make the -rewrite-test a bit more interesting: it now 
wraps comments in <i> tags.  Extend rewrite tokens to support
this minimal functionality.

llvm-svn: 57409
 2008-10-12 06:09:52 +00:00
Owen Anderson 198966dbef Fix crashes and infinite loops. 
llvm-svn: 57408
 2008-10-12 06:03:38 +00:00
Chris Lattner b6aa53b7de start implementing a token rewriter. At this point, it just reads in a file 
and lets a client iterate over it. 

llvm-svn: 57407
 2008-10-12 05:44:03 +00:00
Chris Lattner 1782da2f84 Add a new -rewrite-test option, which is basically a 
playground to experiment with some new rewriter approaches. For now
it is probably the most complex version of 'cat' ever invented.

llvm-svn: 57406
 2008-10-12 05:29:20 +00:00
Chris Lattner fc7d4a3bd2 Add a new -dump-raw-tokens option, which allows us to see raw tokens. 
Rename -dumptokens to -dump-tokens.

llvm-svn: 57405
 2008-10-12 05:03:36 +00:00
Chris Lattner b11c3233d8 Change FormTokenWithChars to take the token kind to form, since all clients 
were setting a kind and then forming it.  This is just a minor API cleanup, 
no functionality change.

llvm-svn: 57404
 2008-10-12 04:51:35 +00:00
Chris Lattner 99e7d23455 When in keep whitespace mode, make sure to return block comments that are 
unterminated.

llvm-svn: 57403
 2008-10-12 04:19:49 +00:00
Chris Lattner e01e758e11 Change SkipBlockComment and SkipBCPLComment to return true when in 
keep comment mode, instead of returning false.  This matches SkipWhitespace.

llvm-svn: 57402
 2008-10-12 04:15:42 +00:00
Chris Lattner 4d96344c19 Add a new mode to the lexer which enables it to return all characters, 
even whitespace, as tokens from the file.  This is enabled with
L->SetKeepWhitespaceMode(true) on a raw lexer.  In this mode, you too
can use clang as a really complex version of 'cat' with code like this:

  Lexer RawLex(SourceLocation::getFileLoc(SM.getMainFileID(), 0),
               PP.getLangOptions(), File.first, File.second);
  
  RawLex.SetKeepWhitespaceMode(true);
  
  Token RawTok;
  RawLex.LexFromRawLexer(RawTok);
  while (RawTok.isNot(tok::eof)) {
    std::cout << PP.getSpelling(RawTok);
    RawLex.LexFromRawLexer(RawTok);
  }

This will emit exactly the input file, with no canonicalization or other
translation.  Realistic clients actually do something with the tokens of
course :)

llvm-svn: 57401
 2008-10-12 04:05:48 +00:00
Owen Anderson 36b48de43c Duncan convinced me that it's not possible to transform control-based escapes into 
data-based ones.  Just be conservative when analyzing control-based escapes.

llvm-svn: 57400
 2008-10-12 03:59:45 +00:00
Chris Lattner 924efdf623 Stop the preprocessor from poking the lexer's private parts. 
llvm-svn: 57399
 2008-10-12 03:31:33 +00:00
Chris Lattner 097a8b8777 Fix a couple more places that poke KeepCommentMode unnecesarily. 
llvm-svn: 57398
 2008-10-12 03:27:19 +00:00
Chris Lattner 8637abd333 add a new inKeepCommentMode() accessor to abstract the KeepCommentMode 
ivar.

llvm-svn: 57397
 2008-10-12 03:22:02 +00:00
Chris Lattner e3f863a388 fix misleading comment. 
llvm-svn: 57396
 2008-10-12 01:34:51 +00:00
Chris Lattner 7c2e9809b1 Simplify raw mode lexing by treating an unterminate /**/ comment the 
same we we do an unterminated string or character literal.  This makes
it so we can guarantee that the lexer never calls into the 
preprocessor (which would be suicide for a raw lexer).

llvm-svn: 57395
 2008-10-12 01:31:51 +00:00
Chris Lattner 6b0c5ad096 add a comment. 
llvm-svn: 57394
 2008-10-12 01:23:27 +00:00
Chris Lattner 50c9050037 Change how raw lexers are handled: instead of creating them and then 
using LexRawToken, create one and use LexFromRawLexer.  This avoids
twiddling the RawLexer flag around and simplifies some code (even 
speeding raw lexing up a tiny bit).

This change also improves the token paster to use a Lexer on the stack
instead of new/deleting it. 

llvm-svn: 57393
 2008-10-12 01:15:46 +00:00
Chris Lattner 5d3e26a4f6 silence release-assert warnings. 
llvm-svn: 57392
 2008-10-12 00:31:50 +00:00
Chris Lattner 79ef843533 silence some release-assert warnings. 
llvm-svn: 57391
 2008-10-12 00:28:42 +00:00
Chris Lattner e05f534628 silence a bunch of warnings in a release-assert build. 
llvm-svn: 57390
 2008-10-12 00:26:57 +00:00
Chris Lattner 87e97ea7b8 improve a comment. 
llvm-svn: 57389
 2008-10-12 00:23:07 +00:00
Chris Lattner c46186e890 fix typo 
llvm-svn: 57388
 2008-10-11 23:59:03 +00:00
Chris Lattner da435910e8 Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changes 
a couple other cases for clarity, but shouldn't affect correctness.

Patch by Eli Friedman!

llvm-svn: 57387
 2008-10-11 22:55:00 +00:00
Chris Lattner f94e1bc53a update win32 project file, patch provided by OvermindDL1 on llvmdev. 
llvm-svn: 57386
 2008-10-11 22:14:59 +00:00
Chris Lattner 2753955fc0 Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as 
parameters instead of raw Constants.  This prevents the constants from
being selected by the isel pass, fixing PR2735.

llvm-svn: 57385
 2008-10-11 22:08:30 +00:00
Chris Lattner d57b7603f9 rearrange some code. 
llvm-svn: 57384
 2008-10-11 22:07:19 +00:00
Chris Lattner bea568f612 random cleanup 
llvm-svn: 57383
 2008-10-11 22:06:50 +00:00
Daniel Dunbar a4a0813fb4 Add API changes which affected me to release notes: 
- DbgStopPointInst
 - Attributes (needs filling in)

llvm-svn: 57382
 2008-10-11 21:26:56 +00:00
Duncan Sands 23ee981e8e Fix comment typo. 
llvm-svn: 57381
 2008-10-11 19:34:24 +00:00
Anton Korobeynikov 2589777f3f Add ability to override segment (mostly for code emitter purposes). 
llvm-svn: 57380
 2008-10-11 19:09:15 +00:00
Daniel Dunbar 2a5754521d Add GCC 4.1.2 from Debian to known bad GCC list. 
llvm-svn: 57379
 2008-10-11 18:40:33 +00:00