3ff2e69713
clang -E should not print tokens from the predefines buffer.
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llvm-svn: 42838
2007-10-10 20:45:16 +00:00
1f1b0dbc28
Make a significant change to invert the control flow handling
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predefined macros. Previously, these were handled by the driver,
now they are handled by the preprocessor.
Some fallout of this:
1. Instead of preprocessing two buffers (the predefines, then the
main source file) we now start preprocessing the main source
file and inject the predefines as a "psuedo #include" from the
main source file.
2. #1 allows us to nuke the Lexer::IsMainFile flag and simplify
Preprocessor::isInPrimaryFile.
3. The driver doesn't have to know about standard #defines, the
preprocessor knows, which is nice for people wanting to define
their own drivers.
4. This allows us to put normal tokens in the predefine buffer,
for example a definition for __builtin_va_list that is
target-specific, and a typedef for id in objc.
llvm-svn: 42818
2007-10-09 22:10:18 +00:00
3c69f12cbc
convert driver over to use Token::is/isNot APIs. fwew, all done.
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llvm-svn: 42800
2007-10-09 18:03:42 +00:00
cd1e8d2c9d
Add #ifdefs to make the source portable to windows. Patch contributed
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by Hartmut Kaiser!
llvm-svn: 41684
2007-09-03 18:24:56 +00:00
1af0e0116a
avoid std::string yet again.
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llvm-svn: 40462
2007-07-24 06:59:01 +00:00
4c4a245475
Use a smallstring instead of an std::string in FileChanged to avoid some malloc traffic.
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This speeds up -E on xalancbmk by 2.4%
llvm-svn: 40461
2007-07-24 06:57:14 +00:00
d63c8a5963
Fix two paste-avoidance bugs I introduced last night. Patch
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by Neil Booth. This fixes Preprocessor/output_paste_avoid.c
llvm-svn: 40454
2007-07-23 23:21:34 +00:00
5cdfebbf10
avoid creating std::strings in MoveToLine
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llvm-svn: 40424
2007-07-23 06:31:11 +00:00
93c4ea75ec
In OutputString, avoid calling memcpy for really tiny strings.
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This speeds up -E on 447.dealII by 5.8%
llvm-svn: 40423
2007-07-23 06:23:07 +00:00
0af9823e4d
Avoid calling getSpelling at all for identifiers, which are
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trivial to handle and very very common. This speeds up -E on
447.dealII by 2.5%
llvm-svn: 40422
2007-07-23 06:14:36 +00:00
4418ce1091
change the concatenation avoidance algorithm to be partially table-driven
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and avoid computing the spelling of tokens when not needed. This speeds
up -E on 447.dealII by 2.2%
llvm-svn: 40421
2007-07-23 06:09:34 +00:00
e4c566c604
If a token doesn't need cleaning, we can get its first character
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without having to get the whole token. This speeds up -E on
447.dealII by 1.8%
llvm-svn: 40420
2007-07-23 05:18:42 +00:00
5f075827bf
A minor tweak to -E output, speeding up -E 1.5% on 447.dealII
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llvm-svn: 40419
2007-07-23 05:14:05 +00:00
7dd7a1d310
no need to avoid pasting >* It can't form ->*, because we know the previous
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token was not -> and if the token before it was -, the - and > would avoid pasting.
llvm-svn: 40409
2007-07-22 22:33:25 +00:00
9c691703ce
remove redundant test
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llvm-svn: 40386
2007-07-22 06:40:36 +00:00
9b7962495f
avoid a small bit of string traffic by not storing the ""'s around a string in CurFilename
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llvm-svn: 40385
2007-07-22 06:38:50 +00:00
146762e7a4
At one point there were going to be lexer and parser tokens.
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Since that point is now long gone, we should rename LexerToken to
Token, as it is the only kind of token we have.
llvm-svn: 40105
2007-07-20 16:59:19 +00:00
dc5c055fd1
Reimplement SourceLocation. Instead of having a
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fileid/offset pair, it now contains a bit discriminating between
mapped locations and file locations. This separates the tables for
macros and files in SourceManager, and allows better separation of
concepts in the rest of the compiler. This allows us to have *many*
macro instantiations before running out of 'addressing space'.
This is also more efficient, because testing whether something is a
macro expansion is now a bit test instead of a table lookup (which
also used to require having a srcmgr around, now it doesn't).
This is fully functional, but there are several refinements and
optimizations left.
llvm-svn: 40103
2007-07-20 16:37:10 +00:00
23b7eb677d
Finally bite the bullet and make the major change: split the clang namespace
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out of the llvm namespace. This makes the clang namespace be a sibling of
llvm instead of being a child.
The good thing about this is that it makes many things unambiguous. The
bad things is that many things in the llvm namespace (notably data structures
like smallvector) now require an llvm:: qualifier. IMO, libsystem and libsupport
should be split out of llvm into their own namespace in the future, which will fix
this issue.
llvm-svn: 39659
2007-06-15 23:05:46 +00:00
2ea9dd7fc0
ProcessInputFile no longer mutates LangInfo.
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llvm-svn: 39210
2006-11-21 06:18:11 +00:00
b352e3edb5
Change KeepComments/KeepMacroComments modes to be facets of the preprocessor
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state, not aspects of the language standard being parsed.
llvm-svn: 39209
2006-11-21 06:17:10 +00:00
96327eaa52
first step refactoring driver so that it can process multiple input files
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at once.
llvm-svn: 39207
2006-11-21 05:52:55 +00:00
87f267ef4e
eliminate global variables now that PPCallbacks can have state
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llvm-svn: 39205
2006-11-21 05:02:33 +00:00
b8d6d5a81d
Formalize preprocessor callbacks together into a PPCallbacks structure, instead
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of having a loose collection of function pointers. This also allows clients to
maintain state, and reduces the size of the Preprocessor.h interface.
llvm-svn: 39203
2006-11-21 04:09:30 +00:00
9916c5ca7e
Remove GNU C++ min/max operator extension support, they have been removed
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from gcc mainline.
llvm-svn: 39067
2006-10-27 05:24:37 +00:00
9f547a4fdd
Fix regression in my last commit
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llvm-svn: 39013
2006-10-18 06:06:41 +00:00
8fd6ee1f2f
silence warning
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llvm-svn: 39009
2006-10-18 04:02:50 +00:00
4beb0381ed
Trigraphs are not enabled in -fpreprocessed mode.
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llvm-svn: 38796
2006-07-29 17:50:10 +00:00
cd028fc1f6
Fix -E mode to enter the main file *after* -E mode configures the preprocessor.
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llvm-svn: 38784
2006-07-29 06:35:08 +00:00
457fc15bc5
Implement comment saving mode: the -C and -CC options.
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llvm-svn: 38783
2006-07-29 06:30:25 +00:00
331ad778b0
Implement paste avoidance, implementing Preprocessor/output_paste_avoid.c
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llvm-svn: 38767
2006-07-28 06:56:01 +00:00
ecc39e9325
Change Lexer::Stringify to not add ""'s around the string.
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llvm-svn: 38708
2006-07-15 05:23:31 +00:00
67c3848e4e
Cleanup some obsolete comments.
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llvm-svn: 38673
2006-07-04 23:24:26 +00:00
ef9eae1c44
Change the Preprocessor::getSpelling interface to let it be zero-copy in
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the common case.
llvm-svn: 38671
2006-07-04 22:33:12 +00:00
f46be6cb02
Switch to using unix "write" when available, instead of stdio. This speeds up
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-E -P mode by 10% (i.e. takes away almost all i/o time).
llvm-svn: 38669
2006-07-04 22:19:33 +00:00
728b4dc26a
improve comments
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llvm-svn: 38668
2006-07-04 21:28:37 +00:00
ff3f5f4b77
fix compile error
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llvm-svn: 38667
2006-07-04 21:25:59 +00:00
03cbe1fc02
Minor code cleanup
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llvm-svn: 38666
2006-07-04 21:24:33 +00:00
3338ba87d5
Make -P mode faster and closer to GCC output by not emitting newlines at all.
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This allows the SourceManager to not compute line number information for each buffer.
llvm-svn: 38665
2006-07-04 21:19:39 +00:00
73b6a2f62d
Match GCC behavior better in -P mode.
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llvm-svn: 38663
2006-07-04 19:40:52 +00:00
deb3701c23
Switch from using iostreams to using stdio for -E mode output. This speeds
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up clang -E iostream by 30%.
llvm-svn: 38660
2006-07-04 19:24:06 +00:00
5de858cbdd
minor cleanup
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llvm-svn: 38659
2006-07-04 19:04:44 +00:00
09e3cdf9ef
Split the -E mode printer out to a separate .cpp file.
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llvm-svn: 38658
2006-07-04 19:04:05 +00:00
Chris Lattner