Adrian Prantl [Thu, 9 May 2013 23:16:27 +0000 (23:16 +0000)]
Debug Info: Fix a problem that resulted in missing DW_AT_specifications
for C++ constructors.
If the DIType for a class was generated by
CGDebugInfo::createContextChain(), the cache contains only a
limited DIType wihtout any declarations. Since EmitFunctionStart()
needs to find the canonical declaration for each method, we
construct the complete type before emitting any method.
David Blaikie [Thu, 9 May 2013 22:43:45 +0000 (22:43 +0000)]
Debug Info: include address-of ('&') operator and qualified names in template argument lists
This fixes several (7 out of 16) cases of PR14492 in the GDB 7.5 test
suite. It seems GDB was bailing out whenever it had even the slightest
problem with the template argument list (& I assume it didn't like
seeing template value parameters that were just simple names - perhaps
assuming that lone names must be types, not values)
David Blaikie [Thu, 9 May 2013 21:32:04 +0000 (21:32 +0000)]
DebugInfo: Simply & constrain test(s) for PR9600/PR9608
Both these tests were ultimately fixed by the check for
"isIncompleteType" & neither test case was really reduced to a minimal
form. On doing so it becomes apparent that the problem wasn't specific
to templates at all, so I've moved the test case to a more appropriate
test file and added FileCheck verification to it (to show the forward
declaration of the array element type as well as the array alignment and
size being 0 since it cannot be computed). That's about as far down this
rabbithole as I'm willing to go today, so the rest of the un-FileChecked
tests in test/CodeGenCXX/debug-info.cpp will have to go another day
without actually testing anything other than the fact that they don't
crash.
& improve the actually interesting test case in
test/CodeGenCXX/debug-info-templates.cpp which was my original goal (in
preparation for expanding it/fixing some related bugs in non-type
template parameters)
David Blaikie [Thu, 9 May 2013 20:48:12 +0000 (20:48 +0000)]
Debug Info: Remove unnecessary check for dependent array types
This was added, untested (though the relevant crash was tested), in
r128725/PR9600. Removing it doesn't cause failures & nothing I can
imagine could cause this check to ever return 'true' (we should never be
dealing with dependent types here). The subsequent change to check
"isIncompleteType" (r128855/PR9608) makes a lot more sense.
Ben Langmuir [Thu, 9 May 2013 19:17:11 +0000 (19:17 +0000)]
CodeGen for CapturedStmts
EmitCapturedStmt creates a captured struct containing all of the captured
variables, and then emits a call to the outlined function. This is similar in
principle to EmitBlockLiteral.
GenerateCapturedFunction actually produces the outlined function. It is based
on GenerateBlockFunction, but is much simpler. The function type is determined
by the parameters that are in the CapturedDecl.
Some changes have been added to this patch that were reviewed as part of the
serialization patch and moving the parameters to the captured decl.
[doc parsing]: So, in this patch, single character
'commands' will not go through typo fixit logic,
preserving the old behavior (no typo, no diagnostics).
// rdar://12381408
Richard Smith [Thu, 9 May 2013 07:14:00 +0000 (07:14 +0000)]
Implement C++1y constant initializer rules: in a constant initializer for an
object x, x's subobjects can be constructed by constexpr constructor even if
they are of non-literal type, and can be read and written even though they're
not members of a constexpr object or temporary.
Nico Weber [Wed, 8 May 2013 23:47:40 +0000 (23:47 +0000)]
Objective-C: Correctly encode 'retain' and 'copy' for readonly properties.
clang would omit 'C' for 'copy' properties and '&' for 'retain' properties if
the property was also 'readonly'. Fix this, which makes clang match gcc4.2's
behavior.
[modules] When building a module, make sure we don't serialize out HeaderFileInfo for headers not belonging to the module.
After r180934 we may initiate module map parsing for modules not related to the module what we are building,
make sure we ignore the header file info of headers from such modules.
documentation parsing. Patch to do typo correction for
documentation commands. Patch was reviewed, along with
great suggestions for improvement, by Doug.
// rdar://12381408
Daniel Jasper [Wed, 8 May 2013 14:12:04 +0000 (14:12 +0000)]
Improve line breaking in binary expressions.
If the LHS of a binary expression is broken, clang-format should also
break after the operator as otherwise:
- The RHS can be easy to miss
- It can look as if clang-format doesn't understand operator precedence
Reid Kleckner [Wed, 8 May 2013 13:44:39 +0000 (13:44 +0000)]
Forward #pragma comment(lib/linker) through as flags metadata
Summary:
Most of this change is wiring the pragma all the way through from the
lexer, parser, and sema to codegen. I considered adding a Decl AST node
for this, but it seemed too heavyweight.
Mach-O already uses a metadata flag called "Linker Options" to do this
kind of auto-linking. This change follows that pattern.
LLVM knows how to forward the "Linker Options" metadata into the COFF
.drectve section where these flags belong. ELF support is not
implemented, but possible.
This is related to auto-linking, which is http://llvm.org/PR13016.
The reason for the change is that:
a) we are not sure which is better
b) it is a really rare edge case
c) it simplifies the code
d) it currently causes problems with memoization
David Blaikie [Wed, 8 May 2013 06:01:46 +0000 (06:01 +0000)]
Debug Info: Using declarations/DW_TAG_imported_declaration of variables, types, and functions.
Basic support is implemented here - it still doesn't account for
declared-but-not-defined variables or functions. It cannot handle out of
order (declared, 'using', then defined) cases for variables, but can
handle that for functions (& can handle declared, 'using'd, and not
defined at all cases for types).
Nick Lewycky [Tue, 7 May 2013 22:14:37 +0000 (22:14 +0000)]
When typo correction produces an overloaded result when looking up a member,
return all the overloads instead of just picking the first possible declaration.
This removes an invalid note (and on occasion other invalid diagnostics) and
also makes clang's parsing recovery behave as if the text from its fixit were
applied.
Richard Trieu [Tue, 7 May 2013 21:36:24 +0000 (21:36 +0000)]
Fix crash on invalid in template type diffing.
This is a fix for PR15895, where Clang will crash when trying to print a
template diff and the template uses an address of operator. This resulted
from expecting a DeclRefExpr when the Expr could have also been
UnaryOperator->DeclRefExpr.
Richard Smith [Tue, 7 May 2013 19:32:56 +0000 (19:32 +0000)]
C++1y: Update __cplusplus to temporary value 201305L to allow detection of provisional C++1y support.
Add __has_feature and __has_extension checks for C++1y features (based on the provisional names from
the C++ features study group), and update documentation to match.
Summary:
Added parseConfiguration method, which reads FormatStyle from YAML
string. This supports all FormatStyle fields and an additional BasedOnStyle
field, which can be used to specify base style.
Daniel Jasper [Tue, 7 May 2013 09:25:29 +0000 (09:25 +0000)]
Fix clang-format emacs integration in last line.
Emacs seems to have a line that is just past the last character of the
buffers content. This needs to be handled specially so that clang-format
is not called with an invalid -offset.
Richard Smith [Tue, 7 May 2013 02:55:48 +0000 (02:55 +0000)]
C++ status:
- fix paper links to point to isocpp.org, where most of the papers are already up
- update "SVN" features to "Clang 3.3" to distinguish them from features which we
complete after the branch
- document use of -std=c++1y to enable c++1y support
John McCall [Mon, 6 May 2013 21:39:12 +0000 (21:39 +0000)]
Grab-bag of bit-field fixes:
- References to ObjC bit-field ivars are bit-field lvalues;
fixes rdar://13794269, which got me started down this.
- Introduce Expr::refersToBitField, switch a couple users to
it where semantically important, and comment the difference
between this and the existing API.
- Discourage Expr::getBitField by making it a bit longer and
less general-sounding.
- Lock down on const_casts of bit-field gl-values until we
hear back from the committee as to whether they're allowed.
The one user has been changed to use getLValue on the compound literal
expression and then use the normal bindLoc to assign a value. No need
to special case this in the StoreManager.
Jordan Rose [Mon, 6 May 2013 16:48:20 +0000 (16:48 +0000)]
[analyzer] Handle CXXTemporaryObjectExprs in compound literals.
This occurs because in C++11 the compound literal syntax can trigger a
constructor call via list-initialization. That is, "Point{x, y}" and
"(Point){x, y}" end up being equivalent. If this occurs, the inner
CXXConstructExpr will have already handled the object construction; the
CompoundLiteralExpr just needs to propagate that value forwards.
Note the two CXXBindTemporaryExprs. The InitListExpr is really part of the
CompoundLiteralExpr, not an object in its own right. By introducing a new
entity initialization kind in Sema specifically for compound literals, we
avoid the treatment of the inner InitListExpr as a temporary.
Ulrich Weigand [Mon, 6 May 2013 16:26:41 +0000 (16:26 +0000)]
Add SystemZ support
This patch then adds all the usual platform-specific pieces for SystemZ:
driver support, basic target info, register names and constraints,
ABI info and vararg support. It also adds new tests to verify pre-defined
macros and inline asm, and updates a test for the minimum alignment change.
This version of the patch incorporates feedback from reviews by
Eric Christopher and John McCall. Thanks to all reviewers!
Ulrich Weigand [Mon, 6 May 2013 16:23:57 +0000 (16:23 +0000)]
Allow targets to define minimum alignment for global variables
This patch adds a new common code feature that allows platform code to
request minimum alignment of global symbols. The background for this is
that on SystemZ, the most efficient way to load addresses of global symbol
is the LOAD ADDRESS RELATIVE LONG (LARL) instruction. This instruction
provides PC-relative addressing, but only to *even* addresses. For this
reason, existing compilers will guarantee that global symbols are always
aligned to at least 2. [ Since symbols would otherwise already use a
default alignment based on their type, this will usually only affect global
objects of character type or character arrays. ] GCC also allows creating
symbols without that extra alignment by using explicit "aligned" attributes
(which then need to be used on both definition and each use of the symbol).
To enable support for this with Clang, this patch adds a
TargetInfo::MinGlobalAlign variable that provides a global minimum for the
alignment of every global object (unless overridden via explicit alignment
attribute), and adds code to respect this setting. Within this patch, no
platform actually sets the value to anything but the default 1, resulting
in no change in behaviour on any existing target.
This version of the patch incorporates feedback from reviews by
Eric Christopher and John McCall. Thanks to all reviewers!
projects / clang / log