Eli Friedman [Tue, 23 Oct 2012 20:19:32 +0000 (20:19 +0000)]
Add a new warning -Wmissing-variable-declarations, to warn about variables
defined without a previous declaration. This is similar to
-Wmissing-prototypes, but for variables instead of functions.
Richard Smith [Tue, 23 Oct 2012 19:56:01 +0000 (19:56 +0000)]
When rebuilding a DependentScopeDeclRefExpr, perform a lookup into the scope
even if it's dependent, in case it now names a member of the current instantiation.
Douglas Gregor [Tue, 23 Oct 2012 06:18:24 +0000 (06:18 +0000)]
If the precompiled header named by "-include" is actually a directory,
check each of the files within that directory to determine if any of
them is an AST file that matches the language and target options. If
so, the first matching AST file is loaded. This fixes a longstanding
discrepency with GCC's precompiled header implementation.
Richard Smith [Tue, 23 Oct 2012 00:32:41 +0000 (00:32 +0000)]
Ugly ugly hack for libstdc++-4.6 and libstdc++-4.7 compatibility. These
libraries have an incorrect definition of std::common_type (inherited from a
bug in the standard -- see LWG issue 2141), whereby they produce reference
types when they should not.
If we instantiate a typedef named std::common_type<...>::type, which is defined
in a system header as decltype(... ? ... : ...), and the decltype produces a
reference type, convert it to the non-reference type. (This doesn't affect any
LWG2141-conforming implementation of common_type, such as libc++'s, because the
default implementation of common_type<...>::type isn't supposed to produce a
reference type.)
This is horrible. I'm really sorry. :( Better ideas appreciated!
Douglas Gregor [Mon, 22 Oct 2012 23:59:45 +0000 (23:59 +0000)]
Handle implicitly-included PCH files the same way as
implicitly-included PTH files during initialization, delaying the
mapping down to the "original source file" until after later in the
initialization process.
Douglas Gregor [Mon, 22 Oct 2012 23:51:00 +0000 (23:51 +0000)]
Allow clients of the AST reader to specify what kinds of AST load
failures they know how to tolerate, e.g., out-of-date input files or
configuration/version mismatches. Suppress the corresponding
diagnostics if the client can handle it.
Douglas Gregor [Mon, 22 Oct 2012 22:50:17 +0000 (22:50 +0000)]
Distinguish the various kinds of AST file loading failures:
file corruption, compiler version mismatch, target/language
configuration mismatch, out-of-date AST file. No functionality change
yet.
Each option has a set of prefixes. When matching an argument such as
-funroll-loops. First the leading - is removed as it is a prefix. Then
a lower_bound search for "funroll-loops" is done against the option table by
option name. From there each option prefix + option name combination is tested
against the argument.
This allows us to support Microsoft style options where both / and - are valid
prefixes. It also simplifies the cases we already have where options come in
both - and -- forms. Almost every option for gnu-ld happens to have this form.
Douglas Gregor [Mon, 22 Oct 2012 18:42:04 +0000 (18:42 +0000)]
Eliminate the redundancy between source-file information in the source
manager block and input-file information in the control block. The
source manager entries now point back into the control block. Input
files are now lazily deserialized (if validation is disabled). Reduces
Cocoa's PCH by the ~70k I added when I introduced the redundancy in
r166251.
Richard Smith [Sun, 21 Oct 2012 23:00:34 +0000 (23:00 +0000)]
PR14141 (part of DR1351): An implicitly-deduced "any" exception specification
produces an exception of 'noexcept(false)' and is thus compatible with an
explicit exception specification of 'noexcept(false)'.
Simon Atanasyan [Sun, 21 Oct 2012 11:44:57 +0000 (11:44 +0000)]
Add support of MIPS n32 ABI to the Clang driver. The fix builds correct library/object files paths and passes appropriate command line options to the linker if user provides -mabi=n32 option.
Richard Smith [Sun, 21 Oct 2012 03:28:35 +0000 (03:28 +0000)]
Unrevert r166268, reverted in r166272, with a fix for the issue which Nick
found: if an overloaded operator& is present before a template definition,
the expression &T::foo is represented as a CXXOperatorCallExpr, not as a
UnaryOperator, so we didn't notice that it's permitted to reference a non-static
data member of an unrelated class.
While investigating this, I discovered another problem in this area: we are
treating template default arguments as unevaluated contexts during substitution,
resulting in performing incorrect checks for uses of non-static data members in
C++11. That is not fixed by this patch (I'll look into this soon; it's related
to the failure to correctly instantiate constexpr function templates), but was
resulting in this bug not firing in C++11 mode (except with -Wc++98-compat).
Original message:
PR14124: When performing template instantiation of a qualified-id outside of a
class, diagnose if the qualified-id instantiates to a non-static class member.
Lang Hames [Sun, 21 Oct 2012 01:10:01 +0000 (01:10 +0000)]
When used in a compound expression FP_CONTRACT should proceed all explicit
declarations and statements. Emit an error if the FP_CONTRACT is used
later in a compound statement.
Richard Smith [Sat, 20 Oct 2012 08:26:51 +0000 (08:26 +0000)]
Rework implementation of DR1492: Apply the resolution to operator delete too,
since it also has an implicit exception specification. Downgrade the error to
an extwarn, since at least for operator delete, system headers like to declare
it as 'noexcept' whereas the implicit definition does not have an explicit
exception specification. Move the exception specification for user-declared
'operator delete' functions from the type-as-written into the type, to reflect
reality and to allow us to detect whether there was an implicit exception spec
or not.
Nico Weber [Sat, 20 Oct 2012 06:18:14 +0000 (06:18 +0000)]
Accept -Wno-arc-abi without warning for a while.
Xcode 4.5 passes -Wno-arc-abi to clang, which makes a clang newer than
r163917 warn that it doesn't understand -Wno-arc-abi. I asked if adding
this is ok at
http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20121015/066433.html
and nobody objected.
Adding this makes life a bit easier for the chromium project. If you think
this is a burden on for clang, shout, and I'll revert this.
Jordan Rose [Sat, 20 Oct 2012 02:32:51 +0000 (02:32 +0000)]
[analyzer] Assume 'new' never returns NULL if it could throw an exception.
This is actually required by the C++ standard in
[basic.stc.dynamic.allocation]p3:
If an allocation function declared with a non-throwing
exception-specification fails to allocate storage, it shall return a
null pointer. Any other allocation function that fails to allocate
storage shall indicate failure only by throwing an exception of a type
that would match a handler of type std::bad_alloc.
We don't bother checking for the specific exception type, but just go off
the operator new prototype. This should help with a certain class of lazy
initalization false positives.
When associating file ranges of macro arguments with their
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.
Daniel Dunbar [Fri, 19 Oct 2012 20:10:10 +0000 (20:10 +0000)]
IRgen: Initialize TargetLoweringInfo with a triple.
- We create two TargetLoweringInfo instances for different pass managers, and
they weren't consistent (the one for codegen didn't have the right info). I'm
not sure this mattered anywhere in practice.
Jordan Rose [Fri, 19 Oct 2012 16:05:26 +0000 (16:05 +0000)]
Allow objc_requires_super to be used to check class methods as well.
Also, unify ObjCShouldCallSuperDealloc and ObjCShouldCallSuperFinalize.
The two have identical behavior and will never be active at the same time.
There's one last simplification now, which is that if we see a call to
[super foo] and we are currently in a method named 'foo', we will
/unconditionally/ clear the ObjCShouldCallSuper flag, rather than check
first to see if we're in a method where calling super is required. There's
no reason to pay the extra lookup price here.
Andy Gibbs [Fri, 19 Oct 2012 12:49:32 +0000 (12:49 +0000)]
Change VerifyDiagnosticConsumer so that it *must* contain at least one "expected-*" directive. As a result, for test-cases that are not expected to generate any diagnostics, an additional directive "expected-no-diagnostics" has been implemented which can then be included in such test-cases. This new directive may not be used in conjunction with any other "expected-*" directive.
This change was initially proposed as a solution to the problem highlighted by check-in r164677, i.e. that -verify will not cause a test-case failure where the compile command does not actually reference the file.
Andy Gibbs [Fri, 19 Oct 2012 12:44:48 +0000 (12:44 +0000)]
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive.
Andy Gibbs [Fri, 19 Oct 2012 12:36:49 +0000 (12:36 +0000)]
Fix directive parsing in VerifyDiagnosticConsumer so that it ensures that "expected" is at the start of the word and will no longer accept typos such as "junkexpected-*" as a valid "expected-*" directive. A very few test-cases had to be amended to adhere to the new rule.
Richard Smith [Fri, 19 Oct 2012 06:32:17 +0000 (06:32 +0000)]
PR14124: When performing template instantiation of a qualified-id outside of a
class, diagnose if the qualified-id instantiates to a non-static class member.
Rafael Espindola [Fri, 19 Oct 2012 05:04:37 +0000 (05:04 +0000)]
Fix handling of the regparm attribute in the presence of classes with copy
constructors.
When I first moved regparm support to TargetInfo.cpp I tried to isolate it
in classifyArgumentTypeWithReg, but it is actually a lot easier to flip the
code around and check for regparm at the end of the decision tree.
Without this refactoring classifyArgumentTypeWithReg would have to duplicate
the logic about when to use non-byval indirect arguments.
Craig Topper [Fri, 19 Oct 2012 04:40:38 +0000 (04:40 +0000)]
Teach getColumnNumber to use the line cache to get the start of the line if its on the same line as the last call to getLineNumber. Prevents needing to scan backwards for the new line. Fixes PR14106.
Douglas Gregor [Fri, 19 Oct 2012 00:38:02 +0000 (00:38 +0000)]
Move the set of files to be validated in an AST file into the control
block, so the input files are validated early on, before we've
committed to loading the AST file. This (accidentally) fixed a but
wherein the main file used to generate the AST file would *not* be
validated by the existing validation logic.
At the moment, this leads to some duplication of filenames between the
source manager block and input-file blocks, as well as validation
logic. This will be handled via an upcoming patch.
Eric Christopher [Thu, 18 Oct 2012 21:52:18 +0000 (21:52 +0000)]
Add a new option for and disable column number information as there
are no known current users of column info. Robustify and fix up
a few tests in the process. Reduces the size of debug information
by a small amount.
[doc parsing] use getParamName to access parameter
for current(rewritten) comment and getParamNameAsWritten
to access param name coming with \param marker.
Eli Friedman [Thu, 18 Oct 2012 20:14:08 +0000 (20:14 +0000)]
Fix Objective-C implicit property synthesis for C++ classes so we use valid
source locations in places where it is necessary for diagnostics. By itself,
this causes assertions, so while I'm here, also fix property synthesis
for properties of C++ class type so we use so we properly set up a scope
and mark variable declarations.
Chad Rosier [Thu, 18 Oct 2012 19:39:37 +0000 (19:39 +0000)]
[ms-inline asm] Have the LookupInlineAsmIdentifier() callback function return a
*NamedDecl. In turn, build the expressions after we're finished parsing the
asm. This avoids a crasher if the lookup fails.
projects / clang / log