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107 Commits

Author SHA1 Message Date
Douglas Gregor
02690ba643 Don't emit end-of-file diagnostics like "unterminated conditional" or 
"unterminated string" when we're performing code completion.

llvm-svn: 110933
 2010-08-12 17:04:55 +00:00
Ted Kremenek
2bd41d1e30 Add PTHLexer::LexEndOfFile() to emit diagnostics at end-of-file similar to those by Lexer::LexEndOfFile(). 
llvm-svn: 109486
 2010-07-27 02:59:02 +00:00
Kovarththanan Rajaratnam
661a309933 Switch over IdentifierInfoLookup to StringRef 
llvm-svn: 98337
 2010-03-12 08:23:34 +00:00
Benjamin Kramer
337e3a5fea Remove remaining VISIBILITY_HIDDEN from anonymous namespaces. 
llvm-svn: 90044
 2009-11-28 19:45:26 +00:00
Kovarththanan Rajaratnam
930de0aeaf Cleanup llvm/Support/Compiler.h include in header files 
llvm-svn: 90040
 2009-11-28 16:08:10 +00:00
Daniel Dunbar
1a54e3fbb9 Switch PTHManager to using diagnostics for most errors. 
Also, always give errors on a token-cache PTH failure.

llvm-svn: 86939
 2009-11-12 02:53:48 +00:00
Daniel Dunbar
93097b3906 Add Diagnostic::Report method for reporting diagnostics without a location. 
llvm-svn: 86760
 2009-11-10 23:55:23 +00:00
Daniel Dunbar
2c422dc9ca Move clients to use IdentifierInfo::getNameStart() instead of getName() 
llvm-svn: 84436
 2009-10-18 20:26:12 +00:00
Daniel Dunbar
f8502d50f7 Switch to llvm::HashString. 
llvm-svn: 84375
 2009-10-17 23:52:28 +00:00
Douglas Gregor
d2eb58abac Add support for a chain of stat caches in the FileManager, rather than 
only supporting a single stat cache. The immediate benefit of this
change is that we can now generate a PCH/AST file when including
another PCH file; in the future, the chain of stat caches will likely
be useful with multiple levels of PCH files.

llvm-svn: 84263
 2009-10-16 18:18:30 +00:00
Mike Stump
11289f4280 Remove tabs, and whitespace cleanups. 
llvm-svn: 81346
 2009-09-09 15:08:12 +00:00
Benjamin Kramer
89b422c118 Replace cerr with errs(). 
llvm-svn: 79854
 2009-08-23 12:08:50 +00:00
Douglas Gregor
52289d3343 Move the on-disk hash table code into its own header. No functionality change. 
llvm-svn: 69580
 2009-04-20 07:08:21 +00:00
Ted Kremenek
dc637a0be9 PTHManager::Create(): 
- Make the Diagnostic::Level for PTH errors to be specified by the caller

clang (driver):
- Set the PTHManager diagnostic level to "Diagnostic::Error" for -include-pth
  (a hard error) and Diagnostic::Warning for -token-cache (we can still
  proceed).

llvm-svn: 67462
 2009-03-22 06:42:39 +00:00
Ted Kremenek
f97c47ca15 Add back warning about a PTH file not containing any identifiers, but don't make 
it a hard error.

llvm-svn: 67424
 2009-03-21 00:25:09 +00:00
Ted Kremenek
b12f24116d Allow PTH files with no identifiers. 
llvm-svn: 67423
 2009-03-21 00:15:11 +00:00
Ted Kremenek
80e239abc0 PTHManager::Create() now creates a PTHManager even if the PTH file contains no 
cached tokens. This is for use with -include-pth.

llvm-svn: 67385
 2009-03-20 17:54:25 +00:00
Ted Kremenek
f9ccd5cdc2 Add PTHManager::getOriginalSourceFile(), a method that returns the name of the 
original source file (if any) that was used to generate the PTH cache.

llvm-svn: 67343
 2009-03-19 22:19:30 +00:00
Ted Kremenek
29b8697393 Move PTHStatCache within the anonymous namespace. 
llvm-svn: 65348
 2009-02-23 23:27:54 +00:00
Ted Kremenek
e76eb060c7 Fix another PTH warning that should not be a note. 
llvm-svn: 65072
 2009-02-19 22:14:49 +00:00
Ted Kremenek
36b005db45 Make PTH warnings actual warnings instead of 'notes'. 
llvm-svn: 65071
 2009-02-19 22:13:40 +00:00
Ted Kremenek
2fd18ec43a PTH: Cache directory and negative 'stat' calls. This gives us a 1% performance improvement on Cocoa.h (fsyntax-only+PTH). 
llvm-svn: 64490
 2009-02-13 22:07:44 +00:00
Ted Kremenek
29942a349c Add some boilerplate to the PTH file to prepare for the caching of stats for directories (and negative stats too). 
llvm-svn: 64477
 2009-02-13 19:13:46 +00:00
Eli Friedman
159a7cbc36 Fix gcc warning: gcc correctly notes that const-qualifying the return 
type doesn't do anything.

llvm-svn: 64424
 2009-02-13 01:02:29 +00:00
Daniel Dunbar
ad027c7781 Fix assertion when input is an empty string. 
llvm-svn: 64397
 2009-02-12 19:31:53 +00:00
Ted Kremenek
b4c85ccaaa Re-enable PTH stat caching. All tests pass now. 
llvm-svn: 64356
 2009-02-12 03:45:39 +00:00
Ted Kremenek
c6a2a37222 Fix bad reading of bytes in ReadUnalignedLE64() (copy-paste error). 
llvm-svn: 64355
 2009-02-12 03:39:55 +00:00
Ted Kremenek
3280145da4 Temporarily disable PTH stat caching as it appears to be failing on some machines. 
llvm-svn: 64354
 2009-02-12 03:36:54 +00:00
Ted Kremenek
a5c2c27ebd PTH: Cache stat information for files in the PTH file. Hook up FileManager 
to use this stat information in the PTH file using a 'StatSysCallCache' object.

Performance impact (Cocoa.h, PTH):
- number of stat calls reduces from 1230 to 425
- fsyntax-only: time improves by 4.2% 

We can reduce the number of stat calls to almost zero by caching negative stat
calls and directory stat calls in the PTH file as well.

llvm-svn: 64353
 2009-02-12 03:26:59 +00:00
Ted Kremenek
4c1d41f2b1 PTH: Have meta data be at the beginning of the PTH file, not the end. 
llvm-svn: 64338
 2009-02-11 23:34:32 +00:00
Ted Kremenek
e5554deb45 PTH: Replace string identifier to persistent ID lookup with a hashtable. This is 
actually *slightly* slower than the binary search. Since this is algorithmically
better, further performance tuning should be able to make this faster.

llvm-svn: 64326
 2009-02-11 21:29:16 +00:00
Ted Kremenek
8527e3a727 PTH: Don't emit the PTH offset of the IdentifierInfo string data as that data is 
referenced by other tables.

llvm-svn: 64304
 2009-02-11 16:06:55 +00:00
Ted Kremenek
86423a9993 PTH: Replace ad hoc 'file name' -> 'PTH data' lookup table in the PTH file with an on-disk chained hash table. This data structure is implemented using templates, and will be used to replace similar data structures. This change leads to no visibile performance impact on Cocoa.h, but now we only pay a price for the table on order with the number of files accessed and not the number in the PTH file. 
llvm-svn: 64245
 2009-02-10 22:16:22 +00:00
Ted Kremenek
62224c1d7f Add more PTH diagnostics for invalid PTH files, etc. 
llvm-svn: 63232
 2009-01-28 21:02:43 +00:00
Ted Kremenek
3b0589e4b4 Enhance PTHManager::Create() to take an optional Diagnostic* argument that can be used to report issues such as a missing PTH file. 
llvm-svn: 63231
 2009-01-28 20:49:33 +00:00
Ted Kremenek
8d178f4357 PTH: Use Token::setLiteralData() to directly store a pointer to cached spelling data in the PTH file. This removes a ton of code for looking up spellings using sourcelocations in the PTH file. This simplifies both PTH-generation and reading. 
Performance impact for -fsyntax-only on Cocoa.h (with Cocoa.h in the PTH file):
- PTH generation time improves by 5%
- PTH reading improves by 0.3%.

llvm-svn: 63072
 2009-01-27 00:01:05 +00:00
Ted Kremenek
327d00cd45 Silence warning. 
llvm-svn: 63054
 2009-01-26 22:16:12 +00:00
Ted Kremenek
978b5becea Add version number checking to PTH files. 
llvm-svn: 63047
 2009-01-26 21:50:21 +00:00
Ted Kremenek
eb8c8fbd63 Embed the offset of the PTH table inside the prologue of the PTH file. This will help improve gradual versioning of PTH files instead of relying that the PTH table is at a fixed offset. 
llvm-svn: 63045
 2009-01-26 21:43:14 +00:00
Chris Lattner
4fa23625ab Check in the long promised SourceLocation rewrite. This lays the 
ground work for implementing #line, and fixes the "out of macro ID's" 
problem.

There is nothing particularly tricky about the code, other than the
very performance sensitive SourceManager::getFileID() method.

llvm-svn: 62978
 2009-01-26 00:43:02 +00:00
Chris Lattner
1f6c7fe6a8 This is a follow-up to r62675: 
Refactor how the preprocessor changes a token from being an tok::identifier to a 
keyword (e.g. tok::kw_for).  Instead of doing this in HandleIdentifier, hoist this
common case out into the caller, so that every keyword doesn't have to go through
HandleIdentifier.  This drops time in HandleIdentifier from 1.25ms to .62ms, and
speeds up clang -Eonly with PTH by about 1%.

llvm-svn: 62855
 2009-01-23 18:35:48 +00:00
Chris Lattner
f8ccb4f9e3 Update comment. 
llvm-svn: 62819
 2009-01-23 00:13:28 +00:00
Chris Lattner
34eab390b9 remove my gross #ifdef's, using portable abstractions now that the 32-bit 
load is always aligned.

I verified that the bswap doesn't occur in the assembly code on x86.

llvm-svn: 62815
 2009-01-22 23:50:07 +00:00
Chris Lattner
fec5470f03 remove Read8/Read24, which are dead. Rename Read16/Read32 to be more 
descriptive.

llvm-svn: 62775
 2009-01-22 19:48:26 +00:00
Ted Kremenek
ae54f2f590 Fix <rdar://problem/6512717> by correctly reading the right offset in the token data in PTHLexer::getSourceLocation(). 
llvm-svn: 62725
 2009-01-21 22:41:38 +00:00
Chris Lattner
3029b35faa merge two checks for identifiers in the pth loop into one. 
llvm-svn: 62677
 2009-01-21 07:50:06 +00:00
Chris Lattner
ad89ec013f Add a bit to IdentifierInfo that acts as a simple predicate which 
tells us whether Preprocessor::HandleIdentifier needs to be called.
Because this method is only rarely needed, this saves a call and a
bunch of random checks.  This drops the time in HandleIdentifier 
from 3.52ms to .98ms on cocoa.h on my machine.

llvm-svn: 62675
 2009-01-21 07:43:11 +00:00
Ted Kremenek
8d6c828728 Don't crash on empty PTH files. This fixes <rdar://problem/6512714>. 
llvm-svn: 62673
 2009-01-21 07:34:28 +00:00
Chris Lattner
c950296006 really we only need on Read24! 
llvm-svn: 62672
 2009-01-21 07:28:57 +00:00
Chris Lattner
47def9787e revert my previous patch, it assumed endianness. 
llvm-svn: 62671
 2009-01-21 07:21:56 +00:00