- lib/Driver/Driver.cpp, tools/driver/driver.cpp: Exit status should not be propagated, although clang driver should catch exceptions.
- test/Driver/crash-report.c: Add REQUIRES:shell for now.
FIXME: setenv should work also on Lit.InternalShellRunner.
- test/Driver/crash-report.c: Remove XFAIL.
Thanks to Chad, To point out the issue.
llvm-svn: 160343
* Treat compound assignment as a use, at Jordy's request.
* Always add compound assignments into the CFG, so we can correctly diagnose the use in 'return x += 1;'
llvm-svn: 160334
use out of TransferFunctions, and compute it in advance rather than on-the-fly.
This allows us to handle compound assignments with DeclRefExprs on the RHS
correctly, and also makes it trivial to treat const& function parameters as not
initializing the argument. The patch also makes both of those changes.
llvm-svn: 160330
when using Python < 2.7.0. This is the case on Snow Leopard, where the tools are always
installed in /Developer. This isn't a proper fix for really figuring out where Xcode
is installed, but should work to fix an obvious problem on Snow Leopard.
llvm-svn: 160321
This code is very sensitive to the difference between "columns" as printed
and "bytes" (SourceManager columns). All variables are now named explicitly
and our assumptions are (hopefully) documented as both comment and assertion.
Whether parseable fixits should use byte offsets or Unicode character counts
is pending discussion on the mailing list; currently the implementation uses
bytes (and has no problems on lines containing multibyte characters).
This has been added to the user manual.
<rdar://problem/11877454>
llvm-svn: 160319
CmpRuns can be used for static analyzer bug report comparison. However,
we want to make sure external users do not rely on the way bugs are
represented (plist files). Make sure that we have a user
friendly/documented API for CmpRuns script.
llvm-svn: 160314
as an array of its base class TemplateArgument. Switch the const
TemplateArgument* parameters of InstantiatingTemplate's constructors to
ArrayRef<TemplateArgument> to prevent this from happening again in the future.
llvm-svn: 160245
being a property of a canonical type to being a property of the fully-sugared
type. This should only make a difference in the case where an alias template
ignores one of its parameters, and that parameter is an unexpanded parameter
pack.
llvm-svn: 160244
struct __attribute__((visibility("hidden"))) zed {
};
struct __attribute__((visibility("hidden"))) zed;
Which is a bit silly and got a lot noisier now that we correctly handle
visibility pragmas. This patch fixes that and also has some extra quality
improvements:
* We now produce an error instead of a warning for
struct __attribute__((visibility("hidden"))) zed {
};
struct __attribute__((visibility("default"))) zed;
* The "after definition" warning now points to the new attribute that is
ignored instead of pointing to the declaration.
llvm-svn: 160227
instead push the terminator for the branch down into the basic blocks of the subexpressions of '&&' and '||'
respectively. This eliminates some artifical control-flow from the CFG and results in a more
compact CFG.
Note that this patch only alters the branches 'while', 'if' and 'for'. This was complex enough for
one patch. The remaining branches (e.g., do...while) can be handled in a separate patch, but they
weren't immediately tackled because they were less important.
It is possible that this patch introduces some subtle bugs, particularly w.r.t. to destructor placement.
I've tried to audit these changes, but it is also known that the destructor logic needs some refinement
in the area of '||' and '&&' regardless (i.e., their are known bugs).
llvm-svn: 160218
AVX). Currently, if no aligned attribute is specified the alignment of a vector is
inferred from its size. Thus, very large vectors will be over-aligned with no
benefit. Target owners should set this target max.
llvm-svn: 160209
uninitialized variable use, walk back over branches where we've reached all the
non-null successors, not just cases where we've reached all successors.
llvm-svn: 160206
intrinsics with target-indepdent intrinsics. The first instruction(s) to be
handled are the vector versions of count leading zeros (ctlz).
The changes here are to clang so that it generates a target independent
vector ctlz when it sees an ARM dependent vector ctlz. The changes in llvm
are to match the target independent vector ctlz and in VMCore/AutoUpgrade.cpp
to update any existing bc files containing ARM dependent vector ctlzs with
target-independent ctlzs. There are also changes to an existing test case in
llvm for ARM vector count instructions and a new test for the bitcode upgrade.
<rdar://problem/11831778>
There is deliberately no test for the change to clang, as so far as I know, no
consensus has been reached regarding how to test neon instructions in clang;
q.v. <rdar://problem/8762292>
llvm-svn: 160201
to the same signature. Fix a bug in the type printer which would cause this
diagnostic to print wonderful types like 'const const int *'.
llvm-svn: 160161
Summary: Provide more information on usage in -help
Test Plan: ran once
Reviewers: klimek, chandlerc, djasper
Reviewed By: klimek
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D5
llvm-svn: 160132
One adds matchers for the various parts of a for loop (initializer, condition,
increment), as well as extending the hasBody matcher to work for while and
do-while loops. The second patch adds an isInteger matcher for types.
The third patch fixes a bug in allOf, where a few of the name chages
(AllOf --> allOf) had been missed.
All matchers come with unit tests.
Patches by Sam Panzer!
llvm-svn: 160115
If a non-unicode locale is used, the unicode character is escaped and any
byte that is in the escaped representation but not the semicolon will
become whitespace.
llvm-svn: 160113
Previously we were using the static type of the base object to inline
methods, whether virtual or non-virtual. Now, we try to see if the base
object has a known type, and if so ask for its implementation of the method.
llvm-svn: 160094
diagnostics implemented -- see testcases.
I created a new TableGen file for comment diagnostics,
DiagnosticCommentKinds.td, because comment diagnostics don't logically
fit into AST diagnostics file. But I don't feel strongly about it.
This also implements support for self-closing HTML tags in comment
lexer and parser (for example, <br />).
In order to issue precise diagnostics CommentSema needs to know the
declaration the comment is attached to. There is no easy way to find a decl by
comment, so we match comments and decls in lockstep: after parsing one
declgroup we check if we have any new, not yet attached comments. If we do --
then we do the usual comment-finding process.
It is interesting that this automatically handles trailing comments.
We pick up not only comments that precede the declaration, but also
comments that *follow* the declaration -- thanks to the lookahead in
the lexer: after parsing the declgroup we've consumed the semicolon
and looked ahead through comments.
Added -Wdocumentation-html flag for semantic HTML errors to allow the user to
disable only HTML warnings (but not HTML parse errors, which we emit as
warnings in -Wdocumentation).
llvm-svn: 160078
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
Filed PR13334 for the cases that cause the compiler to crash, and
PR13335 for the cases where we should be recovering more gracefully.
llvm-svn: 160070
This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler,
which then only reads the -verify directives that are actually in live
blocks of code. It also makes it simpler to handle -verify directives that
appear in header files, though we still have to manually reparse some files
depending on how they are generated.
This requires some test changes. In particular, all PCH tests now have their
-verify directives outside the "header" portion of the file, using the @line
syntax added in r159978. Other tests have been modified mostly to make it
clear what is being tested, and to prevent polluting the expected output with
the directives themselves.
Patch by Andy Gibbs! (with slight modifications)
The new Frontend/verify-* tests exercise the functionality of this commit,
as well as r159978, r159979, and r160053 (Andy's other -verify enhancements).
llvm-svn: 160068
Previously we'd halt at the fatal error as expected, but not actually emit
any -verify-related diagnostics. This lets us catch cases that emit a
/different/ fatal error from the one we expected.
This is implemented by adding a "force emit" mode to DiagnosticBuilder, which
will cause diagnostics to immediately be emitted regardless of current
suppression. Needless to say this should probably be used /very/ sparingly.
Patch by Andy Gibbs! Tests for all of Andy's -verify patches coming soon.
llvm-svn: 160053
Summary: How to guide for setting up clang tooling for llvm repo.
Test Plan: this is untested
Reviewers: klimek, djasper
Reviewed By: klimek
Differential Revision: http://llvm-reviews.chandlerc.com/D3
llvm-svn: 160047
there's something going on there. Remove the unconditional line entry
and only add one if we're emitting cleanups (any other statements
would be handled normally).
Fixes rdar://9199234
llvm-svn: 160033
This is probably not so useful yet because it is not path-sensitive, though
it does try to show inlining with indentation.
This also adds a dump() method to CallEvent, which should be useful for
debugging.
llvm-svn: 160030
C++ method calls and C function calls both appear as CallExprs in the AST.
This was causing crashes for an object that had a 'free' method.
<rdar://problem/11822244>
llvm-svn: 160029
Also contains a number of tweaks to inlining that are necessary
for constructors and destructors. (I have this enabled on a private
branch, but it is very much unstable.)
llvm-svn: 160023
In order to accomplish this, we now build the callee's stack frame
as part of the CallEnter node, rather than the subsequent BlockEdge node.
This should not have any effect on perceived behavior or diagnostics.
This makes it safe to re-enable inlining of member overloaded operators.
llvm-svn: 160022
While this work is still fairly tentative (destructors are still left out of
the CFG by default), we now handle destructors in the same way as any other
calls, instead of just automatically trying to inline them.
llvm-svn: 160020
These are currently unused, but are intended to be used in lieu of PreStmt
and PostStmt when the call is implicit (e.g. an automatic object destructor).
This also modifies the Data1 field of ProgramPoints to allow storing any
pointer-sized value, as opposed to only aligned pointers. This is necessary
to store SourceLocations.
There is currently no BugReporter support for these; they should be skipped
over in any diagnostic output.
This commit also tags checkers that currently rely on function calls only
occurring at StmtPoints.
llvm-svn: 160019
Implement UniqueFileContainer::erase(), camelCase, add comment on future optimizations of the cache versus de-optimizations of invalidations.
llvm-svn: 159997
from a source file and changes clang-check to make use of this.
This makes clang-check just work on in-tree builds, and allows
easy setup via a symlink per source directory to make clang-check
work without any extra configuration.
llvm-svn: 159990
*errors* with fixits on them by following the recovery advised by the
fixit, but if it is a fixit on a warning, then obviously the AST
should be for the code as-written.
llvm-svn: 159980
void f(); // expected-note 0+ {{previous declaration is here}}
void g(); // expected-note 0-1 {{previous declaration is here}}
The old "+" syntax is still an alias for "1+", and single numbers still work.
Patch by Andy Gibbs!
llvm-svn: 159979
// expected-warning@10 {{some text}}
The line number may be absolute (as above), or relative to the current
line by prefixing the number with either '+' or '-'.
Patch by Andy Gibbs!
llvm-svn: 159978
Lots of tests are using an explicit target triple w/o first checking that the
target is actually available. Add a REQUIRES clause to a bunch of them. This should
hopefully unbreak bots which don't configure w/ all targets enabled.
llvm-svn: 159949
Previously it was possible to get an infinite-loop-on-invalid with a namespace
decl within @interface. Since 'namespace' is normally a safe place to retry
top-level parsing, we just didn't consume the token.
This adds a flag that tracks whether we have temporarily left Objective-C
scope to parse a C-like declaration, and uses that to better recover from
parse problems by stopping at possible method declarations and at @end. To
fix the original problem, we do /not/ stop at 'namespace' when in an
Objective-C @interface or @protocol context (but still do in @implementation).
llvm-svn: 159941
This was a regression introduced during the CallEvent changes; a call to
FunctionDecl::hasBody was also being used to replace the decl found by
lookup with the actual definition. To keep from making this mistake again
(particularly if/when we start inlining Objective-C methods), this commit
adds a "getDefinition()" method to CallEvent, which should do the right
thing under any circumstances.
llvm-svn: 159940
Chris pointed out that while the comparison is certainly problematic
and does not have well-defined behavior, it isn't any worse than some
of the other abuses that we merely warn about and doesn't need to make
the compilation fail.
Revert the release notes change (r159766) now that this is just a new warning.
llvm-svn: 159939
* When substituting a reference to a non-type template parameter pack where the
corresponding argument is a pack expansion, transform into an expression
which contains an unexpanded parameter pack rather than into an expression
which contains a pack expansion. This causes the SubstNonTypeTemplateParmExpr
to be inside the PackExpansionExpr, rather than outside, so the expression
still looks like a pack expansion and can be deduced.
* Teach MarkUsedTemplateParameters that we can deduce a reference to a template
parameter if it's wrapped in a SubstNonTypeTemplateParmExpr (such nodes are
added during alias template substitution).
llvm-svn: 159922
expression, skip over any SubstNonTypeTemplateParmExprs which alias templates
may have inserted before checking for a DeclRefExpr referring to a non-type
template parameter declaration.
llvm-svn: 159909
-ftemplate-depth limit. There are various ways to get an infinite (or merely
huge) stack of substitutions with no intervening instantiations. This is also
consistent with gcc's behavior.
llvm-svn: 159907
multidimensional array of class type. Also, preserve zero-initialization when
evaluating an initializer list for an array, in case the initializers refer to
later elements (which have preceding zero-initialization).
llvm-svn: 159904
which will appear in the vtable as used, not just those ones which were
declared within the class itself. Fixes an issue reported as comment#3 in
PR12763 -- we sometimes assert in codegen if we try to emit a reference to a
function declaration which we've not marked as referenced. This also matches
gcc's observed behavior.
llvm-svn: 159895
in the ABI arrangement, and leave a hook behind so that we can easily
tweak CCs on platforms that use different CCs by default for C++
instance methods.
llvm-svn: 159894
- Split pedantic driver flag test into separate test file, and XFAIL on cygwin,mingw32
- Fix bug in tablegen logic where a missing '{' caused errors to be included in -Wpedantic.
llvm-svn: 159892
I suspect FileCheck might match assertion failure, even if clang/test/Misc/warning-flags.c passed the test.
> 0. Program arguments: bin/./clang -### -pedantic -Wpedantic clang/test/Driver/warning-options.cpp
llvm-svn: 159886
This patch introduces some magic in tablegen to create a "Pedantic" diagnostic
group which automagically includes all warnings that are extensions. This
allows a user to suppress specific warnings traditionally under -pedantic used
an ordinary warning flag. This also allows users to use #pragma to silence
specific -pedantic warnings, or promote them to errors, within blocks of text
(just like any other warning).
-Wpedantic is NOT an alias for -pedantic. Instead, it provides another way
to (a) activate -pedantic warnings and (b) disable them. Where they differ
is that -pedantic changes the behavior of the preprocessor slightly, whereas
-Wpedantic does not (it just turns on the warnings).
The magic in the tablegen diagnostic emitter has to do with computing the minimal
set of diagnostic groups and diagnostics that should go into -Wpedantic, as those
diagnostics that already members of groups that themselves are (transitively) members
of -Wpedantic do not need to be included in the Pedantic group directly. I went
back and forth on whether or not to magically generate this group, and the invariant
was that we always wanted extension warnings to be included in -Wpedantic "some how",
but the bookkeeping would be very onerous to manage by hand.
-no-pedantic (and --no-pedantic) is included for completeness, and matches many of the
same kind of flags the compiler already supports. It does what it says: cancels out
-pedantic. One discrepancy is that if one specifies --no-pedantic and -Weverything or
-Wpedantic the pedantic warnings are still enabled (essentially the -W flags win). We
can debate the correct behavior here.
Along the way, this patch nukes some code in TextDiagnosticPrinter.cpp and CXStoredDiagnostic.cpp
that determine whether to include the "-pedantic" flag in the warning output. This is
no longer needed, as all extensions now have a -W flag.
This patch also significantly reduces the number of warnings not under flags from 229
to 158 (all extension warnings). That's a 31% reduction.
llvm-svn: 159875
This allows SourceLocations to be stored in generic "data" fields
that are typed as "const void *" and are also used to point to
const objects.
Really we should probably be returning a const pointer from
getPtrEncoding as well, but in some places we want to store
SourceLocations in the same generic "data" field as proper
pointers to /mutable/ objects. Oh well.
llvm-svn: 159868
We use LazyCompoundVals to avoid copying the contents of structs and arrays
around in the store, and when we need to pass a struct around that already
has a LazyCompoundVal we just use the original one. However, it's possible
that the first field of a struct may have a LazyCompoundVal of its own, and
we currently can't distinguish a LazyCompoundVal for the first element of a
struct from a LazyCompoundVal for the entire struct. In this case we should
just drop the optimization and make a new LazyCompoundVal that encompasses
the old one.
PR13264 / <rdar://problem/11802440>
llvm-svn: 159866
currently we take address of std::vector's contents only after we finished
adding all comments (so no reallocation can happen), this will change in
future.
llvm-svn: 159845
This flag sets the 'fp-contract' mode, which controls the formation of fused
floating point operations. Available modes are:
- Fast: Form fused operations anywhere.
- On: Form fused operations where allowed by FP_CONTRACT. This is the default
mode.
- Off: Don't form fused operations (in future this may be relaxed to forming
fused operations where it can be proved that the result won't be
affected).
Currently clang doesn't support the FP_CONTRACT pragma, so the 'On' and 'Off'
modes are equivalent.
llvm-svn: 159794
very simple semantic analysis that just builds the AST; minor changes for lexer
to pick up source locations I didn't think about before.
Comments AST is modelled along the ideas of HTML AST: block and inline content.
* Block content is a paragraph or a command that has a paragraph as an argument
or verbatim command.
* Inline content is placed within some block. Inline content includes plain
text, inline commands and HTML as tag soup.
llvm-svn: 159790
that the migrator handles) but return their instances as 'id', resulting
in the compiler resolving 'objectForKey:' as the method from NSDictionary.
When checking if we can convert to subscripting syntax, check whether
the receiver is a result of a class method from a hardcoded list of
such classes. In such a case return the specific class as the interface
of the receiver.
llvm-svn: 159788
(apart from NSDictionary/NSArray) that implement objectForKey:/objectAtIndex/etc.
and the subscripting methods as well.
Part of rdar://11734969
llvm-svn: 159783
duplicates attributes on the declaration. Also eliminates a false negative in
ReleasableMutexLock. Fixing this bug required some refactoring.
llvm-svn: 159780
of out-of-line c++ method definition which happens
to be inside an objc class implementation
until I can figure out how to do it. This is to fix
a broken project.
llvm-svn: 159772
This may turn out to be a controversial change, due to string literals being
uniqued at link time, but Apple's docs only say "The compiler makes such
object constants unique on a per-module basis..."[1] without actually saying
what a "module" is. (It's not a clang module.) Furthermore, this uniqueness
guarantee often can't be guaranteed once the string has been passed through
framework code.
If this does turn out very controversial, we could downgrade this to a
DefaultError warning for strings, and leave it as a true Error for other
kinds of literals.
(<rdar://problem/11300873>)
[1]: https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Strings/Articles/CreatingStrings.html
llvm-svn: 159766
used with classes that generate ASTConsumers; this allows decoupling
the ASTConsumer generation from the Frontend library (like, for example,
the MatchFinder in the upcoming ASTMatcher patch).
llvm-svn: 159760
actually perform value initialization rather than trying to fake it with a call
to the default constructor. Fixes various bugs related to the previously-missing
zero-initialization in this case.
I've also moved this and the other list initialization 'special case' from
TryConstructorInitialization into TryListInitialization where they belong.
llvm-svn: 159733
This required moving the ctors for IntegerLiteral and FloatingLiteral out of
line which shouldn't change anything as they are usually called through Create
methods that are already out of line.
ASTContext::Deallocate has been a nop for a long time, drop it from ASTVector
and make it independent from ASTContext.h
Pass the StorageAllocator directly to AccessedEntity so it doesn't need to
have a definition of ASTContext around.
llvm-svn: 159718
Our current inlining support (specifically RegionStore::enterStackFrame)
doesn't know that calls to overloaded operators may be calls to non-static
member functions, and that in these cases the first argument should be
treated as 'this'. This caused incorrect results and sometimes crashes.
The long-term fix will be to rewrite RegionStore::enterStackFrame to use
CallEvent and its subclasses, but for now we can just disable these
problematic calls by classifying them under a new CallEvent,
CXXMemberOperatorCall.
llvm-svn: 159692
By default on OS X 10.8, we don't link with a crt1.o file and the linker
knows to use _main as the entry point. But, when compiling with -pg, we
need to link with the gcrt1.o file, and the linker needs to be told to use
the "start" symbol as the entry point. The -no_new_main linker option does
that last part. <rdar://problem/11491405>
llvm-svn: 159683
values:
- Return integer vectors in integer registers.
- Pass vector arguments in integer registers.
- Set an upper bound for argument alignment. The largest alignment is 8-byte
for O32 and 16-byte for N32/64.
llvm-svn: 159676
initializer.
I really feel like Clang should warn about this, but I can't describe
a good reason. GCC will warn on this in some cases under
-Wsequence-point, but it actually seems like a false positive for that
warning....
llvm-svn: 159631
if we want to ignore a result, the Dest will be null. Otherwise,
we must copy into it. This means we need to ensure a slot when
loading from a volatile l-value.
With all that in place, fix a bug with chained assignments into
__block variables of aggregate type where we were losing insight into
the actual source of the value during the second assignment.
llvm-svn: 159630
given a cursor pointing to a C++ method call or an ObjC message,
returns non-zero if the method/message is "dynamic", meaning:
For a C++ method: the call is virtual.
For an ObjC message: the receiver is an object instance, not 'super' or a
specific class.
rdar://11779185
llvm-svn: 159627
c-functions declared in implementation should have their
parsing delayed until the end so, they can access forward
declared private methods. // rdar://10387088
llvm-svn: 159626
* Primarily, added \brief to most of include/clang/Basic, instead of prefixing
the comments with "DeclaredName - ";
* Made some brief summaries significantly briefer;
* Fixed up some erroneous uses of \see and \arg;
* Fixed up some extraneous backslashes in \code...\endcode blocks;
* Fixed up some typos/spelling errors.
llvm-svn: 159616
This adds validation that the
* repro source is only rewrite-includes processed, not fully preprocessed.
* repro script contains macro definitions (-DFOO=BAR).
Based on suggestions/help by Matt Beaumont-Gay.
llvm-svn: 159605
...and instead add an accessor. We're not using this today, but it's something
that should probably stay in the source for potential clients, and it doesn't
cost a lot. (ObjCPropertyAccess is only created on the stack, and right now
there's only ever one alive at a time.)
This reverts r159581 / commit 8e674e1da34a131faa7d43dc3fcbd6e49120edbe.
llvm-svn: 159595
Clang unit tests. It's not clear why we support this mode in builds
where LLVM is available (LLVM itself does not), but at least this makes
us support it correctly.
This also fixes a long-standing bug where we would pass the unit test
param flag to lit in the standalone build even though the standalone
build *never* has the unittests built and ready for testing.
llvm-svn: 159594
Now that we're only using -frewrite-includes rather than full preprocessing
when producing repro source files, we should also include command line macro
definitions in the repro script.
I don't have a test case for this because I'm not sure if/how I can open the
crash report file when the name is only known by scraping the crash report
output. Suggestions welcome if anyone thinks it'd be helpful.
llvm-svn: 159592
In C, enum constants have the type of the enum's underlying integer type,
rather than the type of the enum. (This is not true in C++.) Thus, when a
block's return type is inferred from an enum constant, it is incompatible
with expressions that return the enum type.
In r158899, I told block returns to pretend that enum constants have enum
type, like in C++. Doug Gregor pointed out that this can break existing code.
Now, we don't check the types of return statements until the end of the block.
This lets us go back and add implicit casts in blocks with mixed enum
constants and enum-typed expressions.
<rdar://problem/11662489> (again)
llvm-svn: 159591
template instantiation. I wasn't able to reproduce this down to
anything small enough to put in our test suite, but it's "obviously"
okay to set the invalid bit earlier and precludes a
known-broken-but-not-marked-broken class from being used elsewhere.
llvm-svn: 159584
standalone section of the Clang CMake files.
This will likely make the lit runs in Clang much more suitable to IDEs
such as Xcode and MSVC when operating in a standalone mode.
llvm-svn: 159582
we are encountering some scalability issues with memory usage. The
appropriate long term fix is to make the analysis more scalable, but
this will at least prevent the analyzer swapping when
analyzing very large functions.
llvm-svn: 159578
in the call graph had been inlined but for whatever reason we did not inline some
of its callees.
Also, fix a related traversal bug where we meant to do a BFS of the callgraph but
instead were doing a DFS.
llvm-svn: 159577
the standalone mode. We've changed scoping and sequencing of variables
being defined and that cause this to start to be unset breaking some
cmake users. Thanks to Jordan Rose for the report.
The fix also makes the condition on the preceding line much more
sensible. =D
llvm-svn: 159576
The preObjCMessage and postObjCMessage callbacks now take an ObjCMethodCall
argument, which can represent an explicit message send (ObjCMessageSend) or an
implicit message generated by a property access (ObjCPropertyAccess).
llvm-svn: 159559
Previously, the CallEvent subclass ObjCMessageInvocation was just a wrapper
around the existing ObjCMessage abstraction (over message sends and property
accesses). Now, we have abstract CallEvent ObjCMethodCall with subclasses
ObjCMessageSend and ObjCPropertyAccess.
In addition to removing yet another wrapper object, this should make it easy
to add a ObjCSubscriptAccess call event soon.
llvm-svn: 159558
This involved refactoring some common pointer-escapes code onto CallEvent,
then having MallocChecker use those callbacks for whether or not to consider
a pointer's /ownership/ as escaping. This still needs to be pinned down, and
probably we want to make the new argumentsMayEscape() function a little more
discerning (content invalidation vs. ownership/metadata invalidation), but
this is a good improvement.
As a bonus, also remove CallOrObjCMessage from the source completely.
llvm-svn: 159557
Both of these got uglier rather than cleaner because we don't have preCall and
postCall yet; properly wrapping a CallExpr in a CallEvent requires doing a bit
of deconstruction on the callee. Even when we have preCall and postCall we may
want to expose the current CallEvent to pre/postStmt<CallExpr>.
llvm-svn: 159556
This ended allowing quite a bit of cleanup, and some minor changes.
- CallEvent makes it easy to use hasNonZeroCallbackArg more aggressively, which
we check in order to avoid false positives with callbacks that might release
the object.
- In order to support this for functions which consume their arguments, there
are two new ArgEffects: DecRefAndStopTracking and DecRefMsgAndStopTracking.
These act just like StopTracking, except that if the object only had a
return count of +1 it's now considered released instead (so we still get
use-after-free messages).
- On the plus side, we no longer have to special-case
+[NSObject performSelector:withObject:afterDelay:] and friends.
- The use of IdentifierInfos in the method summary cache is now hidden; only
the ObjCInterfaceDecl gets passed around most of the time.
- Since we cache all "simple" summaries and check every function call, there is
no real benefit to having NULL stand in for default summaries anymore.
- Whitespace, unused methods, etc.
Even more simplification to come when we get check::postCall and can unify all
these other post* checks.
llvm-svn: 159555
This is intended to replace CallOrObjCMessage, and is eventually intended to be
used for anything that cares more about /what/ is being called than /how/ it's
being called. For example, inlining destructors should be the same as inlining
blocks, and checking __attribute__((nonnull)) should apply to the allocator
calls generated by operator new.
llvm-svn: 159554
coming from an AST file are registered for serialization.
A static data member instantiation of in a chained PCH could be missed
when serializing decls; the result was that when emitting the visible decls
map of its DeclContext, we would use a DeclID that was not actually emitted,
leading to crashes or hangs.
Fix this by making sure such decls are always registered for serialization.
Also introduce extra sanity checks to make sure we don't register new
declarations or types after we have serialized the types/decls block.
rdar://11728990
llvm-svn: 159550
attached to a declaration in the completion string.
Since extracting comments isn't free, a new code completion option is
introduced.
A new code completion option that enables including brief comments
into CodeCompletionString should be a, err, code completion option.
But because ASTUnit caches global declarations during parsing before
even completion consumer is created, the option is duplicated as a
translation unit option (in both libclang and ASTUnit, like the option
to cache code completion results).
llvm-svn: 159539
\file and \brief markup and appear in Doxygen's summaries (and eventually at
http://clang.llvm.org/doxygen/files.html). Fixed up another couple of minor
glitches in the docs at the same time.
llvm-svn: 159517
For some targets a structure named __va_list_tag is built to help define
the __builtin_va_list type. However, __va_list_tag was not being treated as a
predefined type thus causing problems when serializing the AST. This commit
fixes that oversight by adding the necessary support to treat __va_list_tag
as a predefined type.
llvm-svn: 159508
This behaves like the existing GNU __alignof and C++11 alignof keywords;
most of the patch is simply adding the third token spelling to various places.
llvm-svn: 159494
lit testsuites. This sinks all management of the aggregate lit runs into
the LLVM CMake files, making Clang only responsible for declaring its
own testsuite. In the process we fix numerous "bugs" where the proper
method of invoking lit has changed over time, and the old system
encoded several broken artifacts of this in ABIs and compatibility
tests.
It also switches to 'check-clang' for the canonical name of the test
suite, although 'clang-test' remains as an alias.
The situation when Clang is being built in standalone mode is little
changed. It replicates just enough of the lit setup to cope with the
oddities of being run outside of an LLVM build.
llvm-svn: 159483
In future changes we should:
* use __builtin_trap rather than derefing 'random' volatile pointers.
* avoid dumping temporary files into /tmp when running tests, instead
preferring a location that is properly cleaned up by lit.
Review by Chandler Carruth.
llvm-svn: 159469
is selected. This will allow more flexibility when converting diagnostics to
use template type diffing.
Also updated the internal manual and test cases for correctly keeping the bold
attribute and for tree printing.
llvm-svn: 159463
The solution is a bit inefficient: it creates N checkers, one for each check, and
each check does a dispatch on the function name. This is redundant, but we can fix
this once we have the proper ability to enable/disable subchecks.
Fixes <rdar://problem/11780180>.
llvm-svn: 159459
Update the two function overloads
void TemplateSpecializationType::PrintTemplateArgumentList(raw_ostream &OS,....
to behave like
std::string TemplateSpecializationType::PrintTemplateArgumentList(const TemplateArgument *Args,...
hence making sure that clang consistently adds a space between two '>' at the end of nested template arguments.
llvm-svn: 159412
Corrected type for index of _mm256_mask_i32gather_pd
from 256-bit to 128-bit
Corrected types for src|dst|mask of _mm256_mask_i64gather_ps
from 256-bit to 128-bit
Support the following intrinsics:
_mm_mask_i32gather_epi64, _mm256_mask_i32gather_epi64,
_mm_mask_i64gather_epi64, _mm256_mask_i64gather_epi64,
_mm_mask_i32gather_epi32, _mm256_mask_i32gather_epi32,
_mm_mask_i64gather_epi32, _mm256_mask_i64gather_epi32
llvm-svn: 159403
type traits that assignment to/construction of a lifetime-qualified
object under ARC is *not* trivial. Fixes <rdar://problem/11738725>.
llvm-svn: 159401
Previously:
...the comment said DFS...
...the WorkList being instantiated said BFS...
...and the implementation was actually DFS...
...due to an unintentional change in 2010...
...and everything kept working anyway.
This fixes our std::deque implementation of BFS, but switches back to a
SmallVector-based implementation of DFS.
We should probably still investigate the ramifications of DFS vs. BFS,
especially for large functions (and especially when we hit our block path
limit), since this might completely change our memory use. It can also mask
some bugs and reveal others depending on when we halt analysis. But at least
we will not have this kind of little mistake creep in again.
llvm-svn: 159397
Daniel Jasper