Chad Rosier [Mon, 15 Oct 2012 19:56:10 +0000 (19:56 +0000)]
[ms-inline asm] Rework the front-end to use the API introduced in r165946.
-The front-end now builds a single assembly string and feeds it to the
AsmParser. The front-end iterates on a per statement basis by calling the
ParseStatement() function. Please note, the calling of ParseStatement() and
and any notion of MCAsmParsedOperands will be sunk into the MC layer in the
near future. I plan to expose more basic APIs such as getClobbers, etc.
-The enumeration of the AsmString expressions have been reworked to use SMLocs
rather than assembly Pieces, which were being parsed in the front-end.
-The test case, t8(), was modified due to r129223. I'll have to find a way to
work around things such as these.
Sorry for the large commit, but breaking this in multiple smaller commits proved
too irritating.
structured document comment: patch to provide comment for overriding function
template when comment is comming from overridden declaration.
// rdar://12378793
[asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. clang part: for FunctionPass we need to run asan at a different point, otherwise it will run before inlining
Douglas Gregor [Mon, 15 Oct 2012 06:28:11 +0000 (06:28 +0000)]
Introduce the notion of excluded headers into the module map
description. Previously, one could emulate this behavior by placing
the header in an always-unavailable submodule, but Argyrios guilted me
into expressing this idea properly.
Bill Wendling [Mon, 15 Oct 2012 04:47:45 +0000 (04:47 +0000)]
Attributes Rewrite
Convert the uses of the Attributes class over to the new format. The
Attributes::get method call now takes an LLVM context so that the attributes
object can be uniquified and stored.
Benjamin Kramer [Sun, 14 Oct 2012 19:21:21 +0000 (19:21 +0000)]
Delete temporary output files when an error occurs during PCH reading.
This reduces the spam make test leaves behind in /tmp. The assert isn't
particularly useful because it's not run with -disable-free (the default when
using the clang driver) but should cover all -cc1 tests.
Jordan Rose [Sat, 13 Oct 2012 05:05:20 +0000 (05:05 +0000)]
[analyzer] Remove the "direct bindings only" Environment lookup.
This was only used by OSAtomicChecker and makes it more
difficult to update values for expressions that the environment
may look through instead (it's not the same as IgnoreParens).
With this gone, we can have bindExpr bind to the inner
expression that getSVal will find.
I believe the removed assert in CheckerManager says it best:
InlineCall is a special hacky callback to allow intrusive
evaluation of the call (which simulates inlining). It is
currently only used by OSAtomicChecker and should go away
at some point.
OSAtomicChecker has gone away; inlineCall can now go away as well!
Richard Smith [Fri, 12 Oct 2012 22:57:06 +0000 (22:57 +0000)]
-fcatch-undefined-behavior: Trap undefined behavior due to conversions to or
from a floating-point type where the source value is not in the range of
representable values of the destination type.
Ted Kremenek [Fri, 12 Oct 2012 22:56:42 +0000 (22:56 +0000)]
Silence static analyzer issue by documenting that in this context
that a DeclRefExpr can never return a null decl. We possibly should
hoist this into getDecl() itself.
Ted Kremenek [Fri, 12 Oct 2012 22:56:33 +0000 (22:56 +0000)]
Silence dead store warning. It is conceptually possible we will
add more code that references SourceFile, so removing the dead store
doesn't seem appropriate for the long term.
Douglas Gregor [Fri, 12 Oct 2012 21:15:50 +0000 (21:15 +0000)]
Sanitize the names of modules determined based on the names of headers
or directories, to make sure that they are identifiers that are not
keywords in any dialect. Fixes <rdar://problem/12489495>.
David Blaikie [Fri, 12 Oct 2012 20:00:44 +0000 (20:00 +0000)]
Fix typo correction of one qualified name to another.
When suggesting "foo::bar" as a correction for "fob::bar" we mistakenly
replaced only "bar" with "foo::bar" producing "fob::foo::bar" which was broken.
This corrects that replacement in as many places as I could find & provides
test cases for all those cases I could find a test case for. There are a couple
that don't seem to be reachable (one looks entirely dead, the other just
doesn't seem to ever get called with a namespace to namespace change).
Review by Richard Smith ( http://llvm-reviews.chandlerc.com/D57 ).
Bill Schmidt [Fri, 12 Oct 2012 19:26:17 +0000 (19:26 +0000)]
This patch addresses PR13948.
For 64-bit PowerPC SVR4, an aggregate containing only one
floating-point field (float, double, or long double) must be passed in
a register as though just that field were present. This patch
addresses the issue during Clang code generation by specifying in the
ABIArgInfo for the argument that the underlying type is passed
directly in a register. The included test case verifies flat and
nested structs for the three data types.
Sean Silva [Thu, 11 Oct 2012 23:31:18 +0000 (23:31 +0000)]
Add missing classof().
Somewhat troublingly, without this implemented, the check inside
isa_impl<> would silently use the parent's `classof()` when determining
whether it was okay to downcast from the parent to the child!
Bug analysis:
A build failure after removing the parent's `classof()` initially
alerted me to the bug, after which a little bit of thinking and reading
of the code identified the root cause.
The compiler could be made to prevent this bug from happening if there
were a way to ensure that in the code
that `To::classof` is actually inside the class `To`, and not in a base
class. I am not aware of a way to check this in C++. If there is a means
to perform that check, please bring it up on the list and this will be
fixed.
There is a high likelihood that there are other instances of this same
bug in the codebase.
David Blaikie [Thu, 11 Oct 2012 22:55:07 +0000 (22:55 +0000)]
Provide a fixit when taking the address of an unqualified member function.
This only applies if the type has a name. (we could potentially do something
crazy with decltype in C++11 to qualify members of unnamed types but that
seems excessive)
It might be nice to also suggest a fixit for "&this->i", "&foo->i",
and "&foo.i" but those expressions produce 'bound' member functions that have
a different AST representation & make error recovery a little trickier. Left
as future work.
Douglas Gregor [Thu, 11 Oct 2012 21:07:39 +0000 (21:07 +0000)]
Diagnose the expansion of ambiguous macro definitions. This can happen
only with modules, when two disjoint modules #define the same
identifier to different token sequences.
[libclang] Make sure the index_data.main_filename field is initialized
in c-index-test. index_enteredMainFile is not invoked when indexing a
module file.
Jordan Rose [Thu, 11 Oct 2012 16:10:19 +0000 (16:10 +0000)]
-Warc-repeated-use-of-weak: Don't warn on a single read followed by writes.
This is a "safe" pattern, or at least one that cannot be helped by using
a strong local variable. However, if the single read is within a loop,
it should /always/ be treated as potentially dangerous.
Jordan Rose [Thu, 11 Oct 2012 16:06:21 +0000 (16:06 +0000)]
-Warc-repeated-use-of-weak: Check messages to property accessors as well.
Previously, [foo weakProp] was not being treated the same as foo.weakProp.
Now, for every explicit message send, we check if it's a property access,
and if so, if the property is weak. Then for every assignment of a
message, we have to do the same thing again.
This is a potentially expensive increase because determining whether a
method is a property accessor requires searching through the methods it
overrides. However, without it -Warc-repeated-use-of-weak will miss cases
from people who prefer not to use dot syntax. If this turns out to be
too expensive, we can try caching the result somewhere, or even lose
precision by not checking superclass methods. The warning is off-by-default,
though.
[libclang] Improve AST serialization done by ASTUnit::Save().
The ASTUnit needs to initialize an ASTWriter at the beginning of
parsing to fully handle serialization of a translation unit that
imports modules. Do this by introducing an option to enable it, which
corresponds to CXTranslationUnit_ForSerialization on the C API side.
Douglas Gregor [Thu, 11 Oct 2012 00:51:27 +0000 (00:51 +0000)]
Remove the ASTDeserializationListener's MacroVisible() callback, which
is no longer necessary, as well as the little bit of infrastructure in
the AST writer that used it.
Douglas Gregor [Thu, 11 Oct 2012 00:46:49 +0000 (00:46 +0000)]
Deserialize macro history when we deserialize an identifier that has
macro history.
When deserializing macro history, we arrange history such that the
macros that have definitions (that haven't been #undef'd) and are
visible come at the beginning of the list, which is what the
preprocessor and other clients of Preprocessor::getMacroInfo()
expect. If additional macro definitions become visible later, they'll
be moved toward the front of the list. Note that it's possible to have
ambiguities, but we don't diagnose them yet.
There is a partially-implemented design decision here that, if a
particular identifier has been defined or #undef'd within the
translation unit, that definition (or #undef) hides any macro
definitions that come from imported modules. There's still a little
work to do to ensure that the right #undef'ing happens.
Additionally, we'll need to scope the update records for #undefs, so
they only kick in when the submodule containing that update record
becomes visible.
objective-C IRgen: When sending a method to 'super'
in a category class method, don't read 'isa' pointer. Instead,
save the desired OBJC_METACLASS_$_ClassName in
__DATA,__objc_superrefs and read that without reading any
isa pointers. // rdar://12459358
projects / clang / log