Samuel Benzaquen [Mon, 17 Nov 2014 14:55:49 +0000 (14:55 +0000)]
Remove VariadicOperatorMatcherInterface as it is redundant with logic from DynTypedMatcher.
Summary:
The generic variadic matcher is faster (one less virtual function call
per match) and doesn't require template instantiations which reduces
compile time and binary size.
Registry.cpp.o generates ~14% less symbols and compiles ~7.5% faster.
The change also speeds up our clang-tidy benchmark by ~2%.
Alexey Samsonov [Sun, 16 Nov 2014 20:53:53 +0000 (20:53 +0000)]
[Sanitizer] Parse and produce all sanitizer-relevant arguments in SanitizerArgs.
In particular, make SanitizerArgs responsible for parsing
and passing down to frontend -fsanitize-recover and
-fsanitize-undefined-trap-on-error flags.
Simplify parsing -f(no-)sanitize= flags parsing: get rid of
too complex filterUnsupportedKinds function.
This patch fixes couple of bugs for predefined expression
used inside blocks. It fixes a crash in naming code
for __func__ etc. when used in a block declared globally.
It also brings back old naming convention for
predefined expression which was broken. rdar://18961148
Aaron Ballman [Fri, 14 Nov 2014 22:34:56 +0000 (22:34 +0000)]
[c++1z] Support [[deprecated]] attributes on namespaces. Note that it only applies to situations where the namespace is mentioned. Thus, use on anonymous namespaces is diagnosed.
Summary:
Ok, here is somewhat addition to D6217 aiming to preserve old darwin behavior wrt the typedefed types. The actual change to SemaChecking turned out to be pretty gross, in particular:
1. We need to extract the typedef'ed type for proper diagnostics
2. We need to walk over paren expressions as well
Bill Schmidt [Fri, 14 Nov 2014 13:10:13 +0000 (13:10 +0000)]
[PowerPC] Enable vec_perm for long long and double vector types for VSX
VSX makes the "vector long long" and "vector double" types available.
This patch enables the vec_perm interface for these types. The same
builtin is generated regardless of the specified type, so no
additional work or testing is needed in the back end. Tests are added
to ensure this builtin is generated by the front end.
Bill Schmidt [Fri, 14 Nov 2014 12:10:51 +0000 (12:10 +0000)]
[PowerPC] Add VSX builtins for vec_div
This patch adds builtin support for xvdivdp and xvdivsp, along with a
new test case. The builtins are accessed using vec_div in altivec.h.
Builtins are listed (mostly) alphabetically there, so inserting these
changed the line numbers for deprecation warnings tested in
test/Headers/altivec-intrin.c.
Alexey Bataev [Fri, 14 Nov 2014 04:08:45 +0000 (04:08 +0000)]
[OPENMP] Temporary fix for processing of global variables in loops.
Currently there is a bug in processing of global variables used as loop control variables in 'omp for/simd' constructs: these globals must be captured as private variables, but currently they are nor. This is a temporary bug fix for this problem until the correct solution is prepared. If a global var used as lcv without explicit mark as a private/linear/lastprivate the error message is emitted.
Alexey Samsonov [Fri, 14 Nov 2014 02:59:20 +0000 (02:59 +0000)]
[Sanitizer] Refactor SanitizerArgs parsing in Driver.
Remove flag parsing details from the public header.
Use SanitizerSet to represent the set of enabled sanitizers.
Cleanup the implementation: update the comments to
reflect reality, remove dead code.
Reid Kleckner [Fri, 14 Nov 2014 02:01:10 +0000 (02:01 +0000)]
Remove -fseh-exceptions in favor of checking the triple
This option was misleading because it looked like it enabled the
language feature of SEH (__try / __except), when this option was really
controlling which EH personality function to use. Mingw only supports
SEH and SjLj EH on x86_64, so we can simply do away with this flag.
Richard Smith [Fri, 14 Nov 2014 00:37:55 +0000 (00:37 +0000)]
PR21565 Add an egregious hack to support broken libstdc++ headers that declare
a member named 'swap' and then expect unqualified lookup for the name 'swap' in
its exception specification to find anything else.
Without delay-parsed exception specifications, this was ill-formed (NDR) by
[basic.scope.class]p1, rule 2. With delay-parsed exception specifications, the
call to 'swap' unambiguously finds the function being declared, which then
fails because the arguments don't work for that function.
Alexey Samsonov [Fri, 14 Nov 2014 00:16:26 +0000 (00:16 +0000)]
[Profile] Always build profile runtime library with -fPIC.
This change removes libclang_rt.profile-pic-<arch>.a version of
profile runtime. Instead, it's sufficient to always build
libclang_rt.profile-<arch>.a with -fPIC, as it can be linked into
both executables and shared objects.
Objective-C. Fixes a regression caused by implementation
of new warning for deprecated method call for receiver
of type 'id'. This addresses rdar://18960378 where
unintended warnings being issued.
Richard Smith [Thu, 13 Nov 2014 20:01:57 +0000 (20:01 +0000)]
PR21437, final part of DR1330: delay-parsing of exception-specifications. This
is a re-commit of Doug's r154844 (modernized and updated to fit into current
Clang).
Nico Weber [Thu, 13 Nov 2014 16:25:37 +0000 (16:25 +0000)]
clang-format: Format extern "C" blocks like namespace blocks.
namespace blocks act as if KeepEmptyLinesAtTheStartOfBlocks is always true,
and aren't collapsed to a single line even if they would fit. Do the same
for extern "C" blocks.
Before,
extern "C" {
void ExternCFunction();
}
was collapsed into `extern "C" { void ExternCFunction(); }`. Now it stays like
it was.
Fixes http://crbug.com/432640 and part of PR21419.
Support non-owned DiagnosticConsumer in SetupSerializedDiagnostics
This fixes an assertion when running clang-tidy on a file having
--serialize-diagnostics in compiler options. Committing a regression test
for clang-tidy separately.
Hans Wennborg [Thu, 13 Nov 2014 00:35:23 +0000 (00:35 +0000)]
CMake: Set HOST_LINK_VERSION on Darwin (PR21268)
The Autoconf build already does this, but it was never ported to
CMake. The host linker version affects the flags that Clang pass
to the linker, notably whether it passes -demangle or not.
Richard Smith [Wed, 12 Nov 2014 23:38:38 +0000 (23:38 +0000)]
PR19372: Keep checking template arguments after we see an argument pack
expansion into a parameter pack; we know that we're still filling in that
parameter's arguments. Previously, if we hit this case for an alias template,
we'd try to substitute using non-canonical template arguments.
Summary:
Consider the following nifty 1 liner: (0 ? csqrtl(2.0f) : sqrtl(2.0f)). One can easily obtain such code from e.g. tgmath. Right now it produces an assertion because we fail to do the promotion real => _Complex real.
The case was properly handled previously (old handleOtherComplexFloatConversion routine), but was forgotten in the current version. This seems to be about fallout from r219557
Bill Schmidt [Wed, 12 Nov 2014 04:19:56 +0000 (04:19 +0000)]
[PowerPC] Add vec_vsx_ld and vec_vsx_st intrinsics
This patch enables the vec_vsx_ld and vec_vsx_st intrinsics for
PowerPC, which provide programmer access to the lxvd2x, lxvw4x,
stxvd2x, and stxvw4x instructions.
New code in altivec.h defines these in terms of new builtins, which
are themselves defined in BuiltinsPPC.def. The builtins are converted
to LLVM intrinsics in CGBuiltin.cpp. Additional code is added to
builtins-ppc-vsx.c to verify the correct generation of the intrinsics.
Note that I moved the other VSX builtins so all VSX builtins will be
alphabetical in their own section in BuiltinsPPC.def.
Richard Smith [Wed, 12 Nov 2014 02:00:47 +0000 (02:00 +0000)]
Instantiate exception specifications when instantiating function types (other
than the type of a function declaration). We previously didn't instantiate
these at all! This also covers the pathological case where the only mention of
a parameter pack is within the exception specification; this gives us a second
way (other than alias templates) to reach the horrible state where a type
contains an unexpanded pack, but its canonical type does not.
This is a re-commit of r219977:
r219977 was reverted in r220038 because it hit a wrong-code bug in GCC 4.7.2.
(That's gcc.gnu.org/PR56135, and affects any implicit lambda-capture of
'this' within a template.)
r219977 was a re-commit of r217995, r218011, and r218053:
r217995 was reverted in r218058 because it hit a rejects-valid bug in MSVC.
(Incorrect overload resolution in the presence of using-declarations.)
It was re-committed in r219977 with a workaround for the MSVC rejects-valid.
r218011 was a workaround for an MSVC parser bug. (Incorrect desugaring of
unbraced range-based for loop).
Richard Smith [Wed, 12 Nov 2014 01:43:45 +0000 (01:43 +0000)]
PR21536: Fix a corner case where we'd get confused by a pack expanding into the
penultimate parameter of a template parameter list, where the last parameter is
itself a pack, and build a bogus empty final pack argument.
Richard Smith [Wed, 12 Nov 2014 01:24:00 +0000 (01:24 +0000)]
Fix this code to follow the coding style regarding anonymous namespaces and
static functions. Make a bunch of file-local functions static. Remove one
unused static function revealed by this.
Kaelyn Takata [Tue, 11 Nov 2014 23:26:56 +0000 (23:26 +0000)]
Create two helpers for running the typo-correction tree transform.
One takes an Expr* and the other is a simple wrapper that takes an
ExprResult instead, and handles checking whether the ExprResult is
invalid.
Additionally, allow an optional callback that is run on the full result
of the tree transform, for filtering potential corrections based on the
characteristics of the resulting expression once all of the typos have
been replaced.
Summary:
This change makes the asan-coverge (formerly -mllvm -asan-coverge)
accessible via a clang flag.
Companion patch to LLVM is http://reviews.llvm.org/D6152
Alexey Samsonov [Tue, 11 Nov 2014 22:03:54 +0000 (22:03 +0000)]
Bundle conditions checked by UBSan with sanitizer kinds they implement.
Summary:
This change makes CodeGenFunction::EmitCheck() take several
conditions that needs to be checked (all of them need to be true),
together with sanitizer kinds these checks are for. This would allow
to split one call into UBSan runtime into several calls in case
different sanitizer kinds would have different recoverability
settings.
Tests should be fixed accordingly, I'm working on it.
David Blaikie [Tue, 11 Nov 2014 20:44:45 +0000 (20:44 +0000)]
PR16091 continued: Debug Info for member functions with undeduced return types.
So DWARF5 specs out auto deduced return types as DW_TAG_unspecified_type
with DW_AT_name "auto", and GCC implements this somewhat, but it
presents a few problems to do this with Clang.
GCC's implementation only applies to member functions where the auto
return type isn't deduced immediately (ie: member functions of templates
or member functions defined out of line). In the common case of an
inline deduced return type function, GCC emits the DW_AT_type as the
deduced return type.
Currently GDB doesn't seem to behave too well with this debug info - it
treats the return type as 'void', even though the definition of the
function has the correctly deduced return type (I guess it sees the
return type the declaration has, doesn't understand it, and assumes
void). This means the function's ABI might be broken (non-trivial return
types, etc), etc.
Clang, on the other hand doesn't track this particular case of a
deducable return type that is deduced immediately versus one that is
deduced 'later'. So if we implement the DWARF5 representation, all
deducible return type functions would get adverse GDB behavior
(including deduced return type lambda functions, inline deduced return
type functions, etc).
Also, we can't just do this for auto types that are not deduced -
because Clang marks even the declaration's return type as deduced (&
provides the underlying type) once a definition is seen that allows the
deduction. So we have to ignore even deduced types - but we can't do
that for auto variables (because this representation only applies to
function declarations - variables and function definitions need the real
type so the function can be called, etc) so we'd need to add an extra
flag to the type unwrapping/creation code to indicate when we want to
see through deduced types and when we don't. It's also not as simple as
just checking at the top level when building a function type (for one
thing, we reuse the function type building for building function pointer
types which might also have 'auto' in them - but be the type of a
variable instead) because the auto might be arbitrarily deeply nested
("auto &", "auto (*)()", etc...)
So, with all that said, let's do the simple thing that works in existing
debuggers for now and treat these functions the same way we do function
templates and implicit special members: omit them from the member list,
since they can't be correctly called anyway (without knowing the return
type the ABI isn't know and a function call could put the arguments in
the wrong place) so they're not much use to the user.
At some point in the future, when GDB understands the DWARF5
representation better it might be worth plumbing through the extra type
builder handling to avoid looking through AutoType for some callers,
etc...
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