evaluator into constant initializer handling / IRGen. The practical consequence
of this is that the bitcast now lives in the constant's definition, rather than
in its uses.
The code in the constant expression evaluator was producing vectors of the wrong
type and size (and possibly of the wrong value for a big-endian int-to-vector
bitcast). We were getting away with this only because we don't yet support
constant-folding of any expressions which inspect vector values.
llvm-svn: 145981
- Exposes a CXType_Vector type kind for vector types.
- Adds generalized versions of the clang_getArrayElementType and clang_getArraySize functions, named clang_getElementType and clang_getNumElements, which work on array, vector, or complex types.
- Adds additional functions for querying function types. clang_isFunctionTypeVariadic returns true if a function type is variadic. clang_getFunctionCallingConv returns an enumeration value indicating the calling convention of the function type. clang_getNumArgTypes returns the number of static argument types, and clang_getArgType gets the type of an argument.
- Adds a clang_getTypedefDeclUnderlyingType function to get the underlying type from a TypedefDecl cursor.
- Adds a clang_getEnumDeclIntegerType function to get the integer type from an EnumDecl cursor.
- Adds clang_getEnumConstantDeclValue and clang_getEnumConstantDeclUnsignedValue functions to get the value of an EnumConstantDecl as a signed or unsigned long long, respectively.
- Exposes a CXCursor_AsmLabelAttr cursor kind for __asm__("label") attributes.
- Alters clang_getCursorSpelling to return the label value for AsmLabelAttr-kind cursors.
llvm-svn: 145972
most specific (sub)module based on the actual file we find, rather
than always importing the top-level module. This means
that #include'ing <Foo/Blah.h> should give us the submodule Foo.Blah.
llvm-svn: 145942
frameworks). A submodule can now be labeled as a "framework", and
header search will look into the appropriate Headers/PrivateHeaders
subdirectories for named headers.
llvm-svn: 145941
explicit submodules or umbrella headers from submodules. Instead,
build the entire module at once, and let the name-hiding mechanisms
hide the contents of explicit submodules at load time.
llvm-svn: 145940
The test includes a FIXME for a related case involving calls; it's a bit more complicated to fix because the RValue class doesn't keep track of alignment.
<rdar://problem/10463337>
llvm-svn: 145862
methods) to bool. E.g.
void foo() {}
if (f) { ... // <- Warns here.
}
Only applies to non-weak functions, and does not apply if the function address
is taken explicitly with the addr-of operator.
llvm-svn: 145849
class.
We are going into the direction of handling SymbolData and other SymExpr
uniformly, so it makes less sense to keep two different SVal classes.
For example, the checkers would have to take an extra step to reason
about each type separately.
The classes have the same members, we were just using the SVal kind
field for easy differentiation in 3 switch statements. The switch
statements look more ugly now, but we can make the code more readable in
other ways, for example, moving some code into separate functions.
llvm-svn: 145833
ExprEngine.
Teach SimpleConstraintManager::assumeSymRel() to propagate constraints
to symbolic expressions.
+ One extra warning (real bug) is now generated due to enhanced
assumeSymRel().
llvm-svn: 145832
ConstraintManager::canReasonAbout() from the ExprEngine.
ExprEngine should not care if the constraint solver can reason about
something or not. The solver should be able to handle all the SymExprs.
To do this, the solver should be able to keep track of not only the
SymbolData but of all SymExprs. This is why we change SymbolRef to be an
alias of SymExpr*. When encountering an expression it cannot simplify,
the solver should just add the constraints to it.
llvm-svn: 145831
to re-export anything that it imports. This opt-in feature makes a
module behave more like a header, because it can be used to re-export
the transitive closure of a (sub)module's dependencies.
llvm-svn: 145811
Basically typo correction will try to offer a correction instead of looking into type dependent base classes.
I found this problem while parsing Microsoft ATL code with clang.
llvm-svn: 145772
when deserialized, fixing random crashes in libclang.
Also simplifies how OpaqueValueExprs are [de]serialized.
The reader/writer automatically retains pointer equality of sub-statements (when a
statement node is referenced in multiple nodes), so no need to manually handle it.
llvm-svn: 145752
"main" files that import modules. When loading any of these kinds of
AST files, we make the modules that were imported visible into the
translation unit that loaded the PCH file or preamble.
llvm-svn: 145737
precompiled header. Previously, we were trying to gather predefines
buffers from all kinds of AST files (which doesn't make sense) and
were performing some validation when AST files were loaded as main
files.
With these tweaks, using PCH files that import modules no longer fails
immediately (due to mismatched predefines buffers). However, module
visibility is lost, so this feature does not yet work.
llvm-svn: 145709
For example, the warning for printf("%zu", 42.0);
changes from "conversion specifies type 'unsigned long'" to "conversion
specifies type 'size_t' (aka 'unsigned long')"
llvm-svn: 145697
only the macro definitions from visible (sub)modules will actually be
visible. This provides the same behavior for macros that r145640
provided for declarations.
llvm-svn: 145683
within module maps, which will (eventually) be used to re-export a
module from another module. There are still some pieces missing,
however.
llvm-svn: 145665
mutable member and a constant initializer. We'd previously promoted such
variables to global constants, resulting in nasal demons if the mutable member
was modified.
This is only a temporary fix. The subtle interplay between isConstantInitializer
and CGExprConstant is very bug-prone; there are some other issues in this area
which I will be addressing in subsequent, more major reworking of this code.
llvm-svn: 145654
(sub)module, all of the names may be hidden, just the macro names may
be exposed (for example, after the preprocessor has seen the import of
the module but the parser has not), or all of the names may be
exposed. Importing a module makes its names, and the names in any of
its non-explicit submodules, visible to name lookup (transitively).
This commit only introduces the notion of name visible and marks
modules and submodules as visible when they are imported. The actual
name-hiding logic in the AST reader will follow (along with test cases).
llvm-svn: 145586
We trigger an error if free is called after a possibly failed allocation. Do not trigger the error if we know that the buffer is not null.
llvm-svn: 145584
We are getting name of the called function or it's declaration in a few checkers. Refactor them to use the helper function in the CheckerContext.
llvm-svn: 145576
force the unknown any type to "id" so that the message send can be
completed without requiring a case. Fixes <rdar://problem/10506646>.
llvm-svn: 145552
a standard global/local scheme, so that submodule definitions will
eventually be able to refer to submodules in other top-level
modules. We'll need this functionality soonish.
llvm-svn: 145549
explicit template specializations (which represent actual functions somebody wrote).
Along the way, refactor some other code which similarly cares about whether or
not they are looking at a template instantiation.
llvm-svn: 145547
declaration tickles a bug in the way we handle visibility pragmas.
The improvement to error recovery for template function definitions declared
with the 'typedef' specifier in r145372 is unrelated and not reverted here.
llvm-svn: 145541
library, since modules cut across all of the libraries. Rename
serialization::Module to serialization::ModuleFile to side-step the
annoying naming conflict. Prune a bunch of ModuleMap.h includes that
are no longer needed (most files only needed the Module type).
llvm-svn: 145538
we may end up having added more pending stuff to do, so go in a loop until everything
is cleared out.
This fixes the error in rdar://10278815 which has a certain David Lynch-esque quality..
error: unknown type name 'BOOL'; did you mean 'BOOL'?
llvm-svn: 145536
it to GNU assembler. In addition, change function getMipsArchFromCPU() so that
it can be reused in ConstructJob().
Patch by Simon Atanasyan.
llvm-svn: 145509
callback client to suggest an alternative search path and after we
complain when the included file can't be found. The former can't be
tested in isolation, the latter doesn't actually matter (because we
won't make a module suggestion if no header is available). However,
the flow is better this way.
llvm-svn: 145502
submodules. This information will eventually be used for name hiding
when dealing with submodules. For now, we only use it to ensure that
the module "key" returned when loading a module will always be a
module (rather than occasionally being a FileEntry).
llvm-svn: 145497
really bad way to go about this, but I'm not sure there's a better
choice without substantial changes to TreeTransform --- most
notably, preserving implicit semantic nodes instead of discarding
and rebuilding them.
llvm-svn: 145480
check whether the named submodules themselves are actually
valid, and drill down to the named submodule (although we don't do
anything with it yet). Perform typo correction on the submodule names
when possible.
llvm-svn: 145477
The new metadata are method @encode strings with additional data.
1. Each Objective-C object is marked with its class name and protocol names.
The same is done for property @encode already.
2. Each block object is marked with its function prototype's @encoding. For
example, a method parameter that is a block object that itself returns void
and takes an int would look like:
@?<v@?i>
These new method @encode strings are stored in a single array pointed to by structs protocol_t and objc_protocol_ext.
Patch provided by Greg Parker!
llvm-svn: 145469
clang/lib/Driver/Driver.cpp: Don't pass through negative exit status, or parent would be confused.
llvm::sys::Program::Wait(): Suppose 0x8000XXXX and 0xC000XXXX as abnormal exit code and pass it as negative value.
Win32 Exception Handler: Exit with ExceptionCode on an unhandle exception.
llvm-svn: 145389
declaration at namespace scope is followed by a semicolon and an open-brace
(or in C++, a 'try', ':' or '='), then the error is probably a function
definition with a spurious ';', rather than a mysterious '{'.
llvm-svn: 145372
of a macro in a file).
As a bonus, also make searching for declarations more efficient by ignoring
preprocessing entities when we know that we are looking for a declaration.
Fixes rdar://10427411.
llvm-svn: 145369
the release notes despite their awesomeness. If we had a thorough
discussion of the performance of Clang in 2.9 vs. 3.0, the first would
be more relevant, but we don't. The serialization stuff hopefully isn't
terribly visible to end users.
Objections to these omissions are of course welcome. =]
llvm-svn: 145336
attribute. This prevents the stack slot allocator from coming along and using a
stack which it thinks is available but isn't.
<rdar://problem/10492556>
llvm-svn: 145332
return the module itself (in the module map) rather than returning the
umbrella header used to build the module. While doing this, make sure
that we're inferring modules for frameworks to build that module.
llvm-svn: 145310
accurate than my original notes were based on IRC conversations. Windows
folks, please edit as needed to make this closer to the truth if I've
still got it wrong.
llvm-svn: 145309
add a bit to that section about the many bug-finding warnings that Clang
has grown since 2.9 as this is one of the more visible new additions.
llvm-svn: 145307
stub for OpenCL work. I can't really dig enough out of the commit log
messages other than to tell that a lot of work went into this in the 2.9
-> 3.0 timeframe. I'll let the folks touching it decide if it merits
a spot in the release notes and provide the appropriate details if so.
llvm-svn: 145291
easier. Move the CUDA bits and the C1X/C++11 atomics stuff there. We
haven't exposed a __has_feature for the atomic builtins, so none of this
is available yet...
llvm-svn: 145288
The performance improvement was committed after the 3.0 branch.
Constructors/destructors are handled by the CFG, but we do not do anything
special for them in the analyzer yet.
Since we do not have an open source release qualification for the analyzer,
we are not investing into creating the proper release notes for it.
llvm-svn: 145281
when computing the exception specification of a copy or move constructor,
ignore non-static data member initializers. Fixes PR11418 /
<rdar://problem/10478642>.
llvm-svn: 145269
consider the _<width> variants as well, which we'll see if we're
performing the type checking in a template instantiation where the
call expression itself was originally not type-dependent. Fixes
PR11411.
llvm-svn: 145248
worth noting in the release notes. These remain raw notes. I'll be
re-writing them into nice prose first thing tomorrow, with help from
others. A couple of notes for any reading the commits:
If you don't see something that should be mentioned, feel free to add
a note (or even a nicely written section) about it! I haven't really
done the static analyzer justice here as I don't really know what the
significant changes are other than mile-high stuff like watching it grow
C++ support and a more robust CFG. I also worry I've missed important
stuff in the Objective-C world.
If you see something that isn't worth mentioning, just delete it. I know
there are several things like this. I plan to prune the list down as
I flesh things out.
If you're name or email is on a bullet, I'll likely be sending you an
email asking for any input on that subject. For many of these I can fill
in something generic, and I'll just want you to give it a once-over.
However, if you have time, feel free to just write the blurb yourself
and drop it in, or drop it in an email to me.
Finally, *WOW* has a lot happened in Clang... I shouldn't have dreaded
(and put off) this so much, it was kind of awesome to go back and watch
the evolution. Anyways, these should be in a reasonable draft state
early tomorrow.
llvm-svn: 145247
Specify that these files should be installed to the optional internal
install location as specified by configure's --with-internal-prefix.
If that option is not used, they'll be installed to the default prefix
as before.
llvm-svn: 145235
these more detailed notes from the primary LLVM release notes for Clang.
This gives us a nice place to flesh out in plenty of detail the major
changes that have happened in Clang land since 2.9.
I've outlined a very rough structure based on the LLVM release notes
structure and what seems like useful divisions in the Clang landscape
(e.g., language-specific stuff is relevant to a narrower audience).
I'll be first converting my brain-dump-ish notes from the commit logs,
and then cleaning here. Suggestions on structure welcome. Typo
corrections, spelling fixes (oh how I'll need them), all welcome; just
commit away.
llvm-svn: 145233
generic pushDestroy function.
This would reduce the number of useful declarations in
CGTemporaries.cpp to one. Since CodeGenFunction::EmitCXXTemporary
does not deserve its own file, move it to CGCleanup.cpp and delete
CGTemporaries.cpp.
llvm-svn: 145202
* Enabling sse enables mmx.
* Disabling (-mno-mmx) mmx, doesn't disable sse (we got this right already).
* The order in not important. -msse -mno-mmx is the same as -mno-mmx -msse.
llvm-svn: 145194
This supports single-element initializer lists for references according to DR1288, as well as creating temporaries and binding to them for other initializer lists.
llvm-svn: 145186
Basically we have to look into the parent *lexical* DeclContext for friend functions at class scope. That's because calling GetParent() return the namespace or file DeclContext.
This fixes all remaining cases of "Unqualified lookup into dependent bases of class templates" when parsing MFC code with clang.
llvm-svn: 145127
pointer mismatch. Cases covered are: initialization, assignment, and function
arguments. Additional text will give the extra information about the nature
of the mismatch: different classes for member functions, wrong number of
parameters, different parameter type, different return type, and function
qualifier mismatch.
llvm-svn: 145114
inside an objc container that "contains" other file-level declarations.
When getting the array of file-level declarations that overlap with a file region,
we failed to report that the region overlaps with an objc container, if
the container had other file-level declarations declared lexically inside it.
Fix this by marking such declarations as "isTopLevelDeclInObjCContainer" in the AST
and handling them appropriately.
llvm-svn: 145109
Original behaviour of defining wchar_t as signed int has been kept for apcs-gnu as I don't have any spec for this to validate against.
llvm-svn: 145102
semantics and defaults as the corresponding g++ arguments. The historical g++
argument -ftemplate-depth-N is kept for compatibility, but modern g++ versions
no longer document that option.
Add -cc1 argument -fconstexpr-depth N to implement the corresponding
functionality.
The -ftemplate-depth=N part of this fixes PR9890.
llvm-svn: 145045
output files that are valid regardless of whether the compilation
succeeded or failed (but not if we crash). Add depfiles to the
failure result file list.
llvm-svn: 145018
- With the current implementation of sys::Program this always printed "2".
- The command execution code will output the right number anyway (including the signal name).
llvm-svn: 144993
Douglas Gregor