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2010-08-17Lex: Add #pragma clang __debug {llvm_fatal_error, llvm_unreachable}, for testingDaniel Dunbar
those crash paths. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111311 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Implement #pragma push_macro, patch by Francois Pichet!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12Don't emit end-of-file diagnostics like "unterminated conditional" orDouglas Gregor
"unterminated string" when we're performing code completion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110933 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Random temporary string cleanup.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09Use precompiled preambles for in-process code completion.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-08Revert r110440, the fix for PR4897. Chris claims to have a better way.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110544 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Push location through the MacroUndefined PPCallback and use it to print ↵Benjamin Kramer
#undefs in -dD mode. (PR7818) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110523 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Fix the #include search path when reading from stdin, from Jon Simons!Douglas Gregor
Fixes PR4897. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31After a lengthy design discussion, add support for "ownership attributes" ↵Ted Kremenek
for malloc/free checking. Patch by Andrew McGregor! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Transcribe clattner email to SVN.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Change #pragma crash to segv, instead of abort.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28Preprocessor: Add support for '#pragma clang __debug crash' and '#pragma clangDaniel Dunbar
__debug overflow_stack'. - For testing crash reporting stuff... you'd think I could just use some C++ code but Doug keeps fixing stuff! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109587 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Record macros in dependent PCHs. Also add various info tables to dependent ↵Sebastian Redl
PCHs; tests for this to follow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Add PTHLexer::LexEndOfFile() to emit diagnostics at end-of-file similar to ↵Ted Kremenek
those by Lexer::LexEndOfFile(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Introduce basic support for loading a precompiled preamble whileDouglas Gregor
reparsing an ASTUnit. When saving a preamble, create a buffer larger than the actual file we're working with but fill everything from the end of the preamble to the end of the file with spaces (so the lexer will quickly skip them). When we load the file, create a buffer of the same size, filling it with the file and then spaces. Then, instruct the lexer to start lexing after the preamble, therefore continuing the parse from the spot where the preamble left off. It's now possible to perform a simple preamble build + parse (+ reparse) with ASTUnit. However, one has to disable a bunch of checking in the PCH reader to do so. That part isn't committed; it will likely be handled with some other kind of flag (e.g., -fno-validate-pch). As part of this, fix some issues with null termination of the memory buffers created for the preamble; we were trying to explicitly NULL-terminate them, even though they were also getting implicitly NULL terminated, leading to excess warnings about NULL characters in source files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Fix namespace polution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Improve performance during cursor traversal when a region of interestDouglas Gregor
is present. Rather than using clang_getCursorExtent(), which requires us to lex the token at the ending position to determine its length. Then, we'd be comparing [a, b) source ranges that cover the characters in the range rather than the normal behavior for Clang's source ranges, which covers the tokens in the range. However, relexing causes us to read the source file (which may come from a precompiled header), which is rather unfortunate and affects performance. In the new scheme, we only use Clang-style source ranges that cover the tokens in the range. At the entry points where this matters (clang_annotateTokens, clang_getCursor), we make sure to move source locations to the start of the token. Addresses most of <rdar://problem/8049381>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109134 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Introduce a new lexer function to compute the "preamble" of a file,Douglas Gregor
which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Complain when string literals are too long for the active languageDouglas Gregor
standard's minimum requirements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-18BUILD_ARCHIVE is the default for libraries, no need to set it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17Add another terrible VC++ compatibility hack: allow users toChris Lattner
allow invalid token pastes (when in -fms-extensions mode) with -Wno-invalid-token-paste git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13Modify the pragma handlers to accept and use StringRefs instead of ↵Argyrios Kyrtzidis
IdentifierInfos. When loading the PCH, IdentifierInfos that are associated with pragmas cause declarations that use these identifiers to be deserialized (e.g. the "clang" pragma causes the "clang" namespace to be loaded). We can avoid this if we just use StringRefs for the pragmas. As a bonus, since we don't have to create and pass IdentifierInfos, the pragma interfaces get a bit more simplified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12Remove the check for repeated tok::eofs, we are not supposed to go past eof ↵Argyrios Kyrtzidis
so this code is totally unnecessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12If we are past tok::eof and in caching lex mode, avoid caching repeated ↵Argyrios Kyrtzidis
tok::eofs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108175 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12we do in fact have to cache the EOF token returned by the preprocessor.Chris Lattner
In the case of backtracking, the cached token lexer will be the only lexer on the stack, without this the token stack will be empty and EOF won't be returned. This fixes PR7072. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07fix PR4499, patch by Kyle Dean!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Implement support for #pragma message, patch by Michael Spencer!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24More clang support for darwin tls. Add a __has_feature macro andEric Christopher
target specific preprocessor define as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106715 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-15Remove a dead argument to ProcessUCNEscape.Chris Lattner
Fix string concatenation to treat escapes in concatenated strings that are wide because of other string chunks to process the escapes as wide themselves. Before we would warn about and miscompile the attached testcase. This fixes rdar://8040728 - miscompile + warning: hex escape sequence out of range git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Preprocessor: Ignore unknown pragmas in -E -dM and -Eonly modes.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Fix memory leak in Preprocessor where MacroInfo objects in the MICache ↵Ted Kremenek
wouldn't have their associated SmallVectors get deallocated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105658 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Makefiles: Set Clang CPP compiler flags in a single location, instead of ↵Daniel Dunbar
scattered throughout the project Makefiles. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105638 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Makefile: Switch Clang Makefiles to always include the top-level Clang Makefile.Daniel Dunbar
- This eliminates most dependencies on how Clang is installed relative to LLVM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30simpler fix for rdar://8044135 - escaped newlines have alreadyChris Lattner
been processed, so they don't have to be tip-toed around. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105182 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Improve our handling of NULL after an escaping '\' in a stringDouglas Gregor
literal. Fixes <rdar://problem/8044135>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105181 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Fix a miscompile of wchar pascal strings.Fariborz Jahanian
(radar 8020384) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Tell the string literal parser when it's not permitted to emitDouglas Gregor
diagnostics. That would be while we're parsing string literals for the sole purpose of producing a diagnostic about them. Fixes <rdar://problem/8026030>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Improve code completion in failure cases in two ways:Douglas Gregor
1) Suppress diagnostics as soon as we form the code-completion token, so we don't get any error/warning spew from the early end-of-file. 2) If we consume a code-completion token when we weren't expecting one, go into a code-completion recovery path that produces the best results it can based on the context that the parser is in. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-17robustify the conflict marker stuff. Don't add 7 twice, which wouldChris Lattner
make it miss (invalid) things like: <<<<<<< >>>>>>> and crash if <<<<<<< was at the end of the line. When we find a >>>>>>> that is not at the end of the line, make sure to reset Pos so we don't crash on something like: <<<<<<< >>>>>>> This isn't worth making testcases for, since each would require a new file. rdar://7987078 - signal 11 compiling "<<<<<<<<<<" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16when code completing inside a C-style block comment, don't emit errors aboutChris Lattner
a missing */ since we truncated the file. This fixes rdar://7948776 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Add '__has_feature' support for weak ObjC classes.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102588 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Sort '__has_feature' cases. No functionality change.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102587 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20push some source location information down through the compiler,Chris Lattner
into ContentCache::getBuffer. This allows it to produce diagnostics on the broken #include line instead of without a location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19add a PPCallback handler for a skipped #include, patch byChris Lattner
Zhanyong Wan! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16emit warn_char_constant_too_large at most once per literal, fixing PR6852Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101580 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Improve line marker directive locations, patch by Jordy RoseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14make the token paste avoidance logic turn "..." into ".. ." instead of ". . ."Chris Lattner
when avoiding paste. Patch by David Peixotto! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12fix a minor bug I noticed while work with Jordy's patch for PR6101,Chris Lattner
in an input file like this: # 42 int x; we were emitting: # <something> int x; (with a space before the int) because we weren't clearing the leading whitespace flag properly after the \n from the directive was handled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Match MemoryBuffer API changes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-31Reinstate my CodeModificationHint -> FixItHint renaming patch, withoutDouglas Gregor
the C-only "optimization". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100022 91177308-0d34-0410-b5e6-96231b3b80d8
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