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path: root/clang/lib/Basic/SourceManager.cpp
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2013-01-12Fix -Wunused-comparison for comparisons in arguments to function-like macros.Matt Beaumont-Gay1-2/+9
Previously, -Wunused-comparison ignored comparisons in both macro bodies and macro arguments, but we would still emit a -Wunused-value warning for either. Now we correctly emit -Wunused-comparison for expressions in macro arguments. Also, add isMacroBodyExpansion to SourceManager, to go along with isMacroArgExpansion. llvm-svn: 172279
2012-12-16Don't use SourceLineCache in getColumnNumber if LastLineNoResult is past the ↵Craig Topper1-1/+2
end of the cache. Fixes PR14570. llvm-svn: 170281
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth1-5/+5
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. llvm-svn: 169237
2012-11-14Add -cc1 option -fno-diagnostics-use-presumed-location, a handy mode forRichard Smith1-2/+3
working with preprocessed testcases. This causes source locations in diagnostics to point at the spelling location instead of the presumed location, while still keeping the semantic effects of the line directives (entering and leaving system-header mode, primarily). llvm-svn: 168004
2012-10-20When associating file ranges of macro arguments with theirArgyrios Kyrtzidis1-37/+82
macro expansion ranges, make sure to check all the FileID entries that are contained in the spelling range of the expansion for the macro argument. Fixes rdar://12537982 llvm-svn: 166359
2012-10-19Teach getColumnNumber to use the line cache to get the start of the line if ↵Craig Topper1-0/+11
its on the same line as the last call to getLineNumber. Prevents needing to scan backwards for the new line. Fixes PR14106. llvm-svn: 166265
2012-10-12Silence dead store warning. It is conceptually possible we willTed Kremenek1-0/+1
add more code that references SourceFile, so removing the dead store doesn't seem appropriate for the long term. llvm-svn: 165837
2012-09-06Dont cast away const needlessly. Found by gcc48 -Wcast-qual.Roman Divacky1-1/+1
llvm-svn: 163325
2012-07-11Introduce a flag in SourceManager to treat non-system source filesArgyrios Kyrtzidis1-3/+11
as "volatile", meaning there's a high enough chance that they may change while we are trying to use them. This flag is only enabled by libclang. Currently "volatile" source files will be stat'ed immediately before opening them, because the file size stat info may not be accurate since when we got it (e.g. from the PCH). This avoids crashes when trying to reference mmap'ed memory from a file whose size is not what we expect. Note that there's still a window for a racing issue to occur but the window for it should be way smaller than before. We can consider later on to avoid mmap completely on such files. rdar://11612916 llvm-svn: 160074
2012-07-02Documentation cleanup: Delete a duplicated/malformed doc comment.James Dennett1-2/+0
llvm-svn: 159628
2012-06-19Revert predefined decl tracking.Meador Inge1-1/+0
r158085 added some logic to track predefined declarations. The main reason we had predefined declarations in the input was because the __builtin_va_list declarations were injected into the preprocessor input. As of r158592 we explicitly build the __builtin_va_list declarations. Therefore the predefined decl tracking is no longer needed. llvm-svn: 158732
2012-06-19Fix the location of the fixit for -Wnewline-eof.Jordan Rose1-2/+3
It turns out SourceManager treating the "one-past-the-end" location as invalid, but then failing to set the invalid flag properly. llvm-svn: 158699
2012-06-17Documentation cleanup: escaped # characters in Doxygen comments.James Dennett1-3/+3
llvm-svn: 158614
2012-06-15Documentation cleanup: escape # in a Doxygen comment.James Dennett1-1/+1
llvm-svn: 158549
2012-06-08Switch LineTableInfo to use FileID instead of int for file references,Douglas Gregor1-8/+8
from Tom Honermann! llvm-svn: 158211
2012-06-06Add pedantic warning -Wempty-translation-unit (C11 6.9p1).Jordan Rose1-0/+1
In standard C since C89, a 'translation-unit' is syntactically defined to have at least one "external-declaration", which is either a decl or a function definition. In Clang the latter gives us a declaration as well. The tricky bit about this warning is that our predefines can contain external declarations (__builtin_va_list and the 128-bit integer types). Therefore our AST parser now makes sure we have at least one declaration that doesn't come from the predefines buffer. Also, remove bogus warning about empty source files. This doesn't catch source files that only contain comments, and never fired anyway because of our predefines. PR12665 and <rdar://problem/9165548> llvm-svn: 158085
2012-05-03[PCH] When validating that the files coming from PCH did not change, alsoArgyrios Kyrtzidis1-14/+37
validate that we didn't override the contents of any of such files. If this is detected, emit a diagnostic error and recover gracefully by using the contents of the original file that the PCH was built from. Part of rdar://11305263 llvm-svn: 156107
2012-04-06SourceManager: Vectorize ComputeLineNumbers for SSE2.Benjamin Kramer1-2/+39
This method is very hot, it is called when emitting diagnostics, in -E mode and for many #pragma handlers. It scans through the whole source file to count newlines, records and caches them in a vector. The speedup from vectorization isn't very large, as we fall back to bytewise scanning when we hit a newline. There might be a way to avoid leaving the sse loop but everything I tried didn't work out because a call to push_back clobbers xmm registers. About 2% speedup on average on "clang -E > /dev/null" of all .cpp files in clang's lib/Sema. llvm-svn: 154204
2012-02-20[PCH] Recover gracefully if the ASTReader detects that a file is differentArgyrios Kyrtzidis1-1/+34
from the one stored in the PCH/AST, while trying to load a SLocEntry. We verify that all files of the PCH did not change before loading it but this is not enough because: - The AST may have been 1) kept around, 2) to do queries on it. - We may have 1) verified the PCH and 2) started parsing. Between 1) and 2) files may change and we are going to have crashes because the rest of clang cannot deal with the ASTReader failing to read a SLocEntry. Handle this by recovering gracefully in such a case, by initializing the SLocEntry with the info from the PCH/AST as well as reporting failure by the ASTReader. rdar://10888929 llvm-svn: 151004
2011-12-21Fix bugs in SourceManager::computeMacroArgsCache() and add a unit test for it.Argyrios Kyrtzidis1-5/+22
llvm-svn: 147057
2011-12-21For SourceManager::isBeforeInTranslationUnit(), have it consider macro arg ↵Argyrios Kyrtzidis1-1/+1
expanded token locations as coming before the closing ')' of a function macro expansion. Include a unit test for SourceManager. llvm-svn: 147056
2011-12-19SourceManager: use getBufferSize()Dylan Noblesmith1-4/+5
Forming an out of bounds pointer to check if it's out of bounds was undefined behavior. llvm-svn: 146861
2011-12-15In SourceManager::~SourceManager do a sanity check to make sure weArgyrios Kyrtzidis1-4/+8
don't try to destruct a null ContentCache. rdar://10567159 llvm-svn: 146707
2011-12-10In ContentCache::replaceBuffer, add sanity check to make sure that we do not ↵Argyrios Kyrtzidis1-1/+5
free a buffer and then continue using it. rdar://10359140. llvm-svn: 146308
2011-12-10Add a sanity check in SourceManager::getColumnNumber, make sureArgyrios Kyrtzidis1-1/+8
we don't try to access beyond the buffer. llvm-svn: 146305
2011-11-16Implement (de-)serialization of the buffer contents for an overriddenDouglas Gregor1-0/+1
file in the source manager. This allows us to properly create and use modules described by module map files without umbrella headers (or with incompletely umbrella headers). More generally, we can actually build a PCH file that makes use of file -> buffer remappings, which could be useful in libclang in the future. llvm-svn: 144830
2011-10-25Use assert(0) instead of duplicating the check, suggestion by Anna.Argyrios Kyrtzidis1-3/+3
llvm-svn: 142886
2011-10-12Introduce SourceManager::getFileLoc which returns a file locationArgyrios Kyrtzidis1-0/+10
taking into account macro arguments. llvm-svn: 141771
2011-10-03Make sure SourceManager::getFileIDLoaded doesn't hang in release build ↵Argyrios Kyrtzidis1-0/+4
because of invalid passed parameter. rdar://10210140 llvm-svn: 141048
2011-09-27Break SourceManager::translateFileLineCol into translateFile, no ↵Argyrios Kyrtzidis1-5/+16
functionality change. llvm-svn: 140610
2011-09-26Associate the macro arguments location map with a FileID insteadArgyrios Kyrtzidis1-17/+17
of a ContentCache, since multiple FileIDs can have the same ContentCache but the expanded macro arguments locations will be different. llvm-svn: 140521
2011-09-25Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie1-4/+4
llvm-svn: 140478
2011-09-20In SourceManager::translateLineCol, handle the case where we are pointingArgyrios Kyrtzidis1-4/+9
directly at the end of the source file. llvm-svn: 140192
2011-09-19[libclang] When getting a source location from a file:line:col tripletArgyrios Kyrtzidis1-4/+8
check whether the requested location points inside the precompiled preamble, in which case the returned source location will be a "loaded" one. llvm-svn: 140060
2011-09-19Break SourceManager::translateFileLineCol into translateLineCol that returns theArgyrios Kyrtzidis1-7/+22
source location of line:col of a specific FileID. llvm-svn: 140059
2011-09-19Rename SourceLocation::getFileLocWithOffset -> getLocWithOffset.Argyrios Kyrtzidis1-8/+8
It already works (and is useful with) macro locs as well. llvm-svn: 140057
2011-09-19For SourceManager::isBeforeInTranslationUnit, a location pointingArgyrios Kyrtzidis1-1/+1
inside a macro argument should be regarded as coming before the location of the expanded tokens. llvm-svn: 140053
2011-08-23Remove one SourceManager::isInFileID overload and use isOffsetInFileID for ↵Argyrios Kyrtzidis1-24/+0
the other. llvm-svn: 138381
2011-08-23Amend r138129 (reduction of SLocEntries) which introduced performance ↵Argyrios Kyrtzidis1-1/+2
regression due to increased calls to SourceManager::getFileID. (rdar://9992664) Use a slightly different approach that is more efficient both in terms of speed (no extra getFileID calls) and in SLocEntries reduction. Comparing pre-r138129 and this patch we get: For compiling SemaExpr.cpp reduction of SLocEntries by 26%. For the boost enum library: -SLocEntries -34% (note that this was -5% for r138129) -Memory consumption -50% -PCH size -31% Reduced SLocEntries also benefit the hot function SourceManager::getFileID, evident by the reduced "FileID scans". llvm-svn: 138380
2011-08-23Move a couple of SourceManager functions out-of-line; no functionality change.Argyrios Kyrtzidis1-0/+43
llvm-svn: 138375
2011-08-21Boost the efficiency of SourceManager::getMacroArgExpandedLocation.Argyrios Kyrtzidis1-39/+101
Currently getMacroArgExpandedLocation is very inefficient and for the case of a location pointing at the main file it will end up checking almost all of the SLocEntries. Make it faster: -Use a map of macro argument chunks to their expanded source location. The map is for a single source file, it's stored in the file's ContentCache and lazily computed, like the source lines cache. -In SLocEntry's FileInfo add an 'unsigned NumCreatedFIDs' field that keeps track of the number of FileIDs (files and macros) that were created during preprocessing of that particular file SLocEntry. This is useful when computing the macro argument map in skipping included files while scanning for macro arg FileIDs that lexed from a specific source file. Due to padding, the new field does not increase the size of SLocEntry. llvm-svn: 138225
2011-08-19Refactor common functionality into SourceManager::getFileIDSize, no ↵Argyrios Kyrtzidis1-14/+1
functionality change. llvm-svn: 138127
2011-08-17Introduce SourceManager::getMacroArgExpandedLocation function.Argyrios Kyrtzidis1-6/+75
If we pass it a source location that points inside a function macro argument, the returned location will be the macro location in which the argument was expanded. If a macro argument is used multiple times, the expanded location will be at the first expansion of the argument. e.g. MY_MACRO(foo); ^ Passing a file location pointing at 'foo', will yield a macro location where 'foo' was expanded into. Make SourceManager::getLocation call getMacroArgExpandedLocation as well. llvm-svn: 137794
2011-08-17Make SourceManager::isBeforeInTranslationUnit handle macro locations correctly.Argyrios Kyrtzidis1-7/+3
llvm-svn: 137793
2011-07-27Change SourceManager::getDataStructureSizes() to use llvm::capacity_in_bytes().Ted Kremenek1-7/+8
llvm-svn: 136236
2011-07-26clang_getCXTUResourceUsage: Report memory used by data structures in ↵Ted Kremenek1-0/+8
SourceManager. llvm-svn: 136189
2011-07-26Clean up as many of the comments in Basic I can find to talk in terms ofChandler Carruth1-28/+25
'expansion' rather than 'instantiation' for macro source locations. llvm-svn: 136058
2011-07-26Migrate 'Instantiation' data and API bits of SLocEntry to 'Expansion'Chandler Carruth1-17/+15
etc. With this I think essentially all of the SourceManager APIs are converted. Comments and random other bits of cleanup should be all thats left. llvm-svn: 136057
2011-07-26Convert InstantiationInfo and much of the related code to ExpansionInfoChandler Carruth1-17/+17
and various other 'expansion' based terms. I've tried to reformat where appropriate and catch as many references in comments but I'm going to do several more passes. Also I've tried to expand parameter names to be more clear where appropriate. llvm-svn: 136056
2011-07-26Rename create(MacroArg)InstantiationLoc to create(MacroArg)ExpansionLoc.Chandler Carruth1-18/+20
llvm-svn: 136054
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