when we are running an AST consumer and when we are just running the
preprocessor or parser alone.
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Also, inline InitializeLanguageStandard into InitializeLangOptions; this code
needs to be refactored but the current division doesn't make any sense.
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the front-end (as far as the preprocessor goes), follow the usual logic of
inserting the (original include path) name into the predefines buffer. This
pushes the responsibility for handling this to PCH instead of the front-end. In
PCH this requires being a little more clever when we diff the predefines
buffers.
Neither of these solutions are particularly great, I think what we eventually
should do is something like gcc where we insert a special marker to indicate the
PCH file, but then run the preprocessor as usual. This would be clearer and
would allow us to drop the overly clever predefines handling.
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anything that ends with ++ or ++-FOO (e.g., c++, clang++, clang++-1.1) as being
a "C++ compiler".
This allows easy testing of the C++ compiler by 'ln -s clang clang++', or by 'cp
clang clang++'.
Based on patch by Roman Divacky.
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- This is conceptually better since the only thing we want this option to do is
preserve the internal module as constructed by IRgen, before running any
passes.
- This also fixes bugs in -disable-llvm-optzns handling with regards to debug
info.
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when looking for a name within a given DeclContext. Now enumerators
will show up in code-completion results.
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- free(NULL) is a nop anyway.
- if someone thinks calling clang_disposeString twice should be legal
please change the method to take a pointer.
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This abstraction will help us manage string memory for complex names that cross the C++/C boundary (e.g. ObjC methods, selectors). This patch also uses it in clang_getTranslationUnitSpelling (which I'm not sure is necessary). Will investigate later...since the extra malloc() can't hurt (for now).
Patch by John Thompson.
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- Provide an actual test for code-completion via CIndex.
- Actually print optional strings in c-index-test
- Export clang_getCompletionChunkCompletionString from CIndex
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- Introduce more code-completion string "chunk" kinds that describe
symbols, the actual text that the user is expected to type, etc.
- Make the generation of macro results optional, since it can be
slow
- Make code-completion accessible through the C API, marshalling the
code-completion results through a temporary file (ick) to maintain
process separation.
The last doesn't have tests yet.
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of coverage of this from the analyzer.
If this bothers you, I can add it back in a mode where non-source diagnostics go
to stderr and only source diagnostics use -html-diags, but I don't think anyone
uses this.
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Localize the optimization to ResolveLocationInAST(). The last valid AST location is now stored with ASTUnit. There still isn't optimal, however it's an improvement (with a much cleaner API). Having the client manage an "hint" is error prone and complex.
I wanted to land the major changes before finishing up the optimizations.
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- 4 new functions (clang_getCursorSourceFile, clang_getDeclSourceFile, clang_getFileName, clang_getFileTime).
- Should remove clang_getDeclSource() and clang_getCursorSource(). For now, just put 'deprecate' comment in header.
- Also changed CXX style comment to C style (to eliminate warning).
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(1) Allow the source file to be specified in the actual command line arguments by allowing the
caller to set 'source_filename' to NULL.
(2) Automatically strip off the arguments '-emit-ast', '-fsyntax-only', and '-c'.
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- Remove clang_wantOnlyLocalDeclarations().
- Remove 'displayDiagnostics' arguments to clang_createTranslationUnitFromSourceFile() and clang_createTranslationUnit().
- Have clang_createTranslationUnitFromSourceFile() strip the '-o <outfile>' command line arguments if they exist. Document this semantic in the header. Also verify we have a valid ASTUnit before telling it to 'unlinkTemporaryFile()'.
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clang_createTranslationUnit() and clang_createTranslationUnitFromSourceFile(). The user can now
specify if the diagnostics from Clang are printed to stderr or are silenced completely. We can
obviously evolve this API to be more general in the future.
Note: Added a FIXME since I wasn't certain what was the best way to redirect to something analogous
to '/dev/null' on Windows.
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alternate DiagnosticClients. To match this API, ASTUnit::LoadFromPCHFile() now takes a corresponding
DiagnosticClient* argument as well. The DiagnosticClient object is destroyed when the ASTUnit object
is destroyed.
The CIndex library now uses this API to create a 'IgnoreDiagnosticsClient' that simply silences
diagnostics when using the clang_createTranslationUnitFromSourceFile() function. This fixes
<rdar://problem/7312058>. This API can change in the future as we add more flexibility for clients.
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Removing this shared data should enable clang_createTranslationUnit/clang_createTranslationUnitFromSourceFile to be run from multiple threads (related to <rdar://problem/7303432>).
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its own BumpPtrAllocator to allocate ASTs.
Change clang_createTranslationUnit (CIndex) to pass 'UseBumpPtrAllocator = true' to
ASTUnit::LoadFromPCHFile().
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substantive change is that clang_getCursorSource() now returns the
file in which a macro was instantiated when the cursor points into a
macro instantiation, rather than crashing.
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header or not via a new "PCHLevel" field in Decl. We currently use
this information to help CIndex filter out declarations that came from
a precompiled header (rather than from an AST file). Further down the
road, it can be used to help implement multi-level precompiled
headers.
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Added clang_createTranslationUnitFromSourceFile().
Changed clang_createIndex() to lookup the location of clang (using dladdr).
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Fix clang_getCursorDecl to do the right thing for expr refs
Fixup test file to accommodate new output (which includes the line/column for the referenced decl)
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-code-completion-at=filename:line:column
which performs code completion at the specified location by truncating
the file at that position and enabling code completion. This approach
makes it possible to run multiple tests from a single test file, and
gives a more natural command-line interface.
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- Currently this requires us to fake an input file.
- This allows Sema to be keep all the logic for how to pull decls out of the external AST source and how to handle things like tentative definitions.
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essence, code completion is triggered by a magic "code completion"
token produced by the lexer [*], which the parser recognizes at
certain points in the grammar. The parser then calls into the Action
object with the appropriate CodeCompletionXXX action.
Sema implements the CodeCompletionXXX callbacks by performing minimal
translation, then forwarding them to a CodeCompletionConsumer
subclass, which uses the results of semantic analysis to provide
code-completion results. At present, only a single, "printing" code
completion consumer is available, for regression testing and
debugging. However, the design is meant to permit other
code-completion consumers.
This initial commit contains two code-completion actions: one for
member access, e.g., "x." or "p->", and one for
nested-name-specifiers, e.g., "std::". More code-completion actions
will follow, along with improved gathering of code-completion results
for the various contexts.
[*] In the current -code-completion-dump testing/debugging mode, the
file is truncated at the completion point and EOF is translated into
"code completion".
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- Doesn't actually work yet because only module level asm's get correctly marked as externally visible in the PCH.
- Other things like 'clang-cc foo.ast -ast-dump' now work, as well.
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GC. Currently, new API will be generated under
clang-cc's -fobjc-newgc-api flag which will eventually
become the default. WIP.
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-mmacosx-version-min to work on llvm::Triple. Simplify
it to use x-'0' to parse single digit integer strings.
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Implement clang_getCursor() - wired up to Argiris's work.
Implement callbacks for CXCursor_ObjCProtocolRef.
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- Traverse category methods, add a "class ref" and make the little test harness a bit more flexible.
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Fixes PR4704 problems
Addresses Eli's patch feedback re: ugly cast code
Updates all postfix operators to remove ParenListExprs. While this is awful,
no better solution (say, in the parser) is obvious to me. Better solutions
welcome.
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1. Passing something that isn't a string used to cause:
"argument to annotate attribute was not a string literal"
make it say "section attribute" instead.
2. Fix the location of the above message to point to the
bad argument instead of the section token.
3. Implement rdar://4341926, by diagnosing invalid section
specifiers in the frontend rather than letting them slip all
the way to the assembler (a QoI win).
An example of #3 is that we used to produce something like this:
/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Expected comma after segment-name
/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Rest of line ignored. 1st junk character valued 46 (.).
Daniel improved clang to use llvm_report_error, so now we got:
$ clang t.c -c
fatal error: error in backend: Global variable 'x' has an invalid section specifier 'sadf': mach-o section specifier
requires a segment and section separated by a comma.
with no loc info. Now we get:
$ clang t.c -fsyntax-only
t.c:4:30: error: argument to 'section' attribute is not valid for this target: mach-o section specifier requires a segment
and section separated by a comma
int x __attribute__((section("sadf")));
^
which is nice :)
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For example,
--
ddunbar@giles:Frontend$ clang -c backend-errors.c
fatal error: error in backend: Global variable 'a' has an invalid section specifier
'I AM, not, legal': mach-o section specifier uses an unknown section type.
--
compare to:
--
ddunbar@giles:Frontend$ gcc -c backend-errors.c
/var/folders/DQ/DQ8GT3++HESEzT1obWBynE+++TI/-Tmp-//cc45w2pq.s:2:Expected comma after segment-name
/var/folders/DQ/DQ8GT3++HESEzT1obWBynE+++TI/-Tmp-//cc45w2pq.s:2:Rest of line ignored. 1st junk character valued 77 (M).
--
Yay!
I am not tied to my wording choice, we could also go with "uncoverable error"
for the prefix, or just leave it off entirely.
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--- Reverse-merging r78535 into '.':
D test/Sema/altivec-init.c
U include/clang/Basic/DiagnosticSemaKinds.td
U include/clang/AST/Expr.h
U include/clang/AST/StmtNodes.def
U include/clang/Parse/Parser.h
U include/clang/Parse/Action.h
U tools/clang-cc/clang-cc.cpp
U lib/Frontend/PrintParserCallbacks.cpp
U lib/CodeGen/CGExprScalar.cpp
U lib/Sema/SemaInit.cpp
U lib/Sema/Sema.h
U lib/Sema/SemaExpr.cpp
U lib/Sema/SemaTemplateInstantiateExpr.cpp
U lib/AST/StmtProfile.cpp
U lib/AST/Expr.cpp
U lib/AST/StmtPrinter.cpp
U lib/Parse/ParseExpr.cpp
U lib/Parse/ParseExprCXX.cpp
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In addition to being defined by the AltiVec PIM, this is also the vector
initializer syntax used by OpenCL, so that vector literals are compatible
with macro arguments.
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-Accept an ObjC method and find all message expressions that this method may respond to.
-Accept an ObjC message expression and find all methods that may respond to it.
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Entity can now refer to declarations that are not visible outside the translation unit.
It is a wrapper of a pointer union, it's either a Decl* for declarations that don't
"cross" translation units, or an EntityImpl* which is associated with the specific "visible" Decl.
Included is a test case for handling fields across translation units.
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with a particular system root directory and can be used with a different
system root directory when the headers it depends on have been installed.
Relocatable precompiled headers rewrite the file names of the headers used
when generating the PCH file into the corresponding file names of the
headers available when using the PCH file.
Addresses <rdar://problem/7001604>.
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ASTLocation is a much better name for its intended purpose which to represent a "point" into the AST.
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'index-test' is now able to provide additional info for a Decl, through multiple AST files:
-Find declarations
-Find definitions
-Find references
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declaration in the AST.
The new ASTContext::getCommentForDecl function searches for a comment
that is attached to the given declaration, and returns that comment,
which may be composed of several comment blocks.
Comments are always available in an AST. However, to avoid harming
performance, we don't actually parse the comments. Rather, we keep the
source ranges of all of the comments within a large, sorted vector,
then lazily extract comments via a binary search in that vector only
when needed (which never occurs in a "normal" compile).
Comments are written to a precompiled header/AST file as a blob of
source ranges. That blob is only lazily loaded when one requests a
comment for a declaration (this never occurs in a "normal" compile).
The indexer testbed now supports comment extraction. When the
-point-at location points to a declaration with a Doxygen-style
comment, the indexer testbed prints the associated comment
block(s). See test/Index/comments.c for an example.
Some notes:
- We don't actually attempt to parse the comment blocks themselves,
beyond identifying them as Doxygen comment blocks to associate them
with a declaration.
- We won't find comment blocks that aren't adjacent to the
declaration, because we start our search based on the location of
the declaration.
- We don't go through the necessary hops to find, for example,
whether some redeclaration of a declaration has comments when our
current declaration does not. Similarly, we don't attempt to
associate a \param Foo marker in a function body comment with the
parameter named Foo (although that is certainly possible).
- Verification of my "no performance impact" claims is still "to be
done".
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- The Compilation is just a helper class, it shouldn't have that amount of
logic in it.
- No functionality change.
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This is simple enough, but then I thought it would be nice to make PrintingPolicy
get a LangOptions so that various things can key off "bool" and "C++" independently.
This spiraled out of control. There are many fixme's, but I think things are slightly
better than they were before.
One thing that can be improved: CFG should probably have an ASTContext pointer in it,
which would simplify its clients.
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function attributes. There are predefined macros that are defined when stack
protectors are used: __SSP__=1 with -fstack-protector and __SSP_ALL__=2 with
-fstack-protector-all.
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This tool will be the test bed for indexing related operations. It basically reads PCH files passed by the command line and performs various operations.
Currently it can accept a file:line:column which resolves to a declaration/statement and displays some information about them.
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InitializeAllAsmPrinters LLVM headers. Also includes some minor fixes
for the CMake-based build with Xcode.
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registered when PCH wasn't being used. We should always install (in BuiltinInfo)
information about target-specific builtins, but we shouldn't register any builtin
identifier infos. This fixes the build of apps that use PCH and target specific
builtins together.
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preprocessor and initialize it early in clang-cc. This
ensures that __has_builtin works in all modes, not just
when ASTContext is around.
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- Avoids running any LLVM optimizations, even at -O2, etc., while still keeping
any language changes these optimizations imply.
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walks through DeclContexts properly, and prints more of the
information available in the AST. The functionality is still available
via -ast-print, -ast-dump, etc., and also via the new member functions
Decl::dump() and Decl::print().
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compiled with -fobjc-sender-dependent-dispatch. This is used in AOP, COP, implementing object
planes, and a few other things.
Patch by David Chisnall.
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clang-cc.cpp.
With this commit, all of the clang-cc command-line options are defined
in clang-cc.cpp.
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Start moving things around in the direction of refactoring the
command-line options out of AnalysisConsumer.cpp.
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to clang-cc.cpp. Also, rename CreateDependencyFileGen to
AttachDependencyFileGen, and make it take a raw_ostream rather than
opening a file itself.
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(with -E), we turn the PCH include into an implicit include of the
file from which the PCH file was generated.
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- Apologies for the extremely gross code duplication, I want to get
this working and then decide how to get this information out of the
back end.
- This replaces -m[no-]sse4[12] by -m[no-]sse4, it appears gcc
doesn't distinguish them?
- -msse, etc. now properly disable/enable related features.
- Don't always define __SSE3__...
- The main missing functionality bit here is that we don't initialize
the features based on the CPU for all -march options.
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- This is a WIP...
- This adds -march= handling to the driver, and fixes the defaulting
of -mcpu on Darwin (which was using the wrong test).
Instead of handling -m{sse, ...} in the driver, pass them to clang-cc as
-target-feature [+-]name
In clang-cc, communicate with the (clang) target to discover the legal
features of a target, and the features which are enabled based on
-mcpu. This is currently hardcoded just enough to not be a feature
regression, we need to get this information from the backend's
TableGen information somehow.
This is used to construct the full list of features which are being
used, which is in turn used to initialize the predefines.
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- This implements gcc style Objective-C interface layout (I
think). Currently it is always off, there is no functionality
change unless this is passed.
For the curious, the deal is that gcc lays out the fields of a
subclass as if they were part of the superclass. That is, the
subclass fields immediately follow the super class fields instead
of being padded to the alignment of the superclass structure.
- Currently gcc uses the tight layout in 32-bit and 64-bit modes, and
llvm-gcc uses it in 32-bit only, for reasons which aren't clear
yet. We probably want to switch to matching gcc, once this makes it
through testing... my hope is that we can also fix llvm-gcc in
order to maintain compatibility between the compilers.
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- This is somewhat cleaner and also fixes PR4063 for real, I had the
order wrong so we were just creating an empty dependency file.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70687 91177308-0d34-0410-b5e6-96231b3b80d8
word-wrapping by default in Emacs; yay!). Thanks, Daniel.
Use LLVM's System layer rather than calling isatty() directly.
Fix a thinko in printing the indentation string that was causing some
weird output.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70654 91177308-0d34-0410-b5e6-96231b3b80d8
Also, put a line of whitespace between the diagnostic and the source
code/caret line when the start of the actual source code text lines up
(or nearly lines up) with the most recent line of the diagnostic. For
example, here it's okay for the last line of the diagnostic to be
(vertically) next to the source line, because there is horizontal
whitespace to separate them:
decl-expr-ambiguity.cpp:12:16: error: function-style cast to a builtin
type can only take one argument
typeof(int)(a,5)<<a;
However, here is a case where we need the vertical separation (since
there is no horizontal separation):
message-length.c:10:46: warning: incompatible pointer types initializing 'void
(int, float, char, float)', expected 'int (*)(int, float, short,
float)'
int (*fp1)(int, float, short, float) = f;
This is part one of <rdar://problem/6711348>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70578 91177308-0d34-0410-b5e6-96231b3b80d8
PCH file and the predefines buffer used when including the PCH
file. We (explicitly) detect conflicting macro definitions (rejecting
the PCH file) and about missing macro definitions (they'll be
automatically pulled from the PCH file anyway).
We're missing some checking to make sure that new macro definitions
won't have any impact on the PCH file itself (e.g., #define'ing an
identifier that the PCH file used).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70316 91177308-0d34-0410-b5e6-96231b3b80d8