Use "strict" instead of "nopartial". Also make strictly not-introduced
share the same diagnostics as Obsolete and Unavailable.
rdar://23791325
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261512 91177308-0d34-0410-b5e6-96231b3b80d8
In passing also fix a semi-related bug that allows access to variable templates through member access notation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261506 91177308-0d34-0410-b5e6-96231b3b80d8
Makes scan-build successfully accept non-existing output directories provided via "-o" option. The directory is created in this case. This behavior is conforming to the old perl scan-build implementation.
(http://reviews.llvm.org/D17091)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261480 91177308-0d34-0410-b5e6-96231b3b80d8
If a header map file is corrupt, the strings in the string table may not
be null-terminated. The logic here previously relied on `MemoryBuffer`
always being null-terminated, but this isn't actually guaranteed by the
class AFAICT. Moreover, we're seeing a lot of crash traces at calls to
`strlen()` inside of `lookupFilename()`, so something is going wrong
there.
Instead, use `strnlen()` to get the length, and check for corruption.
Also remove code paths that could call `StringRef(nullptr)`. r261459
made these rather obvious (although they'd been there all along).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261461 91177308-0d34-0410-b5e6-96231b3b80d8
This way it's easy to change HeaderMapImpl::getString() to return a
StringRef.
There's a slight change here, because I used `errs()` instead of
`dbgs()`. But `dbgs()` is more appropriate for a dump method.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261456 91177308-0d34-0410-b5e6-96231b3b80d8
Add a simple test for `HeaderMap::lookupFileName()`. I'm planning to
add better error checking in a moment, and I'll add more tests like this
then.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261455 91177308-0d34-0410-b5e6-96231b3b80d8
Check up front whether the header map buffer has space for all of its
declared buckets.
There was already a check in `getBucket()`, but it had UB (comparing
pointers that were outside of objects in the error path) and was
insufficient (only checking for a single byte of the relevant bucket).
I fixed the check, moved it to `checkHeader()`, and left a fixed version
behind as an assertion.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261449 91177308-0d34-0410-b5e6-96231b3b80d8
If the number of buckets is not a power of two, immediately recognize
the header map as corrupt, rather than waiting for the first lookup. I
converted the later check to an assert.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261448 91177308-0d34-0410-b5e6-96231b3b80d8
Split the implementation of `HeaderMap` into `HeaderMapImpl` so that we
can write unit tests that don't depend on the `FileManager`, and then
write a few tests that cover the types of corrupt header maps already
detected.
This also moves type and constant definitions from HeaderMap.cpp to
HeaderMapTypes.h so that the test can access them.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261446 91177308-0d34-0410-b5e6-96231b3b80d8
`std::unique_ptr<MemoryBuffer>` already deletes these, so there's no
reason for the boiler-plate in HeaderMap.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261442 91177308-0d34-0410-b5e6-96231b3b80d8
The -EHc flag implicitly adds a nothrow attribute to any extern "C"
function when exceptions are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261425 91177308-0d34-0410-b5e6-96231b3b80d8
It can happen that when we only have 1 more register left in the regsave
area we need to store a value bigger than 1 register and therefore we
go to the overflow area. In this case we have to leave the last slot
in the regsave area unused and keep using overflow area. Do this
by storing a limit value to the used register counter in the overflow block.
Issue diagnosed by and solution tested by Mark Millard!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261422 91177308-0d34-0410-b5e6-96231b3b80d8
OpenMP 4.5 allows to privatize non-static data members of current class
in non-static member functions. Patch adds initial support for data
members.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261412 91177308-0d34-0410-b5e6-96231b3b80d8
option. Previously these options could both be used to specify that you were
compiling the implementation file of a module, with a different set of minor
bugs in each case.
This change removes -fmodule-implementation-of, and instead tracks a flag to
determine whether we're currently building a module. -fmodule-name now behaves
the same way that -fmodule-implementation-of previously did.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261372 91177308-0d34-0410-b5e6-96231b3b80d8
For templates, fields can have incomplete types:
template <class T>
struct A2 {
struct B;
B b;
};
Don't try to touch the DefinitionData of those fields.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261301 91177308-0d34-0410-b5e6-96231b3b80d8
C++11 requires const objects to have a user-provided constructor, even for
classes without any fields. DR 253 relaxes this to say "If the implicit default
constructor initializes all subobjects, no initializer should be required."
clang is currently the only compiler that implements this C++11 rule, and e.g.
libstdc++ relies on something like DR 253 to compile in newer versions. This
change makes it possible to build code that says `const vector<int> v;' again
when using libstdc++5.2 and _GLIBCXX_DEBUG
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60284).
Fixes PR23381.
http://reviews.llvm.org/D16552
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261297 91177308-0d34-0410-b5e6-96231b3b80d8
Add a checker callback that is called when the analyzer starts analyzing a
function either at the top level or when inlined. This will be used by a
follow-on patch making the DeallocChecker path sensitive.
Differential Revision: http://reviews.llvm.org/D17418
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261293 91177308-0d34-0410-b5e6-96231b3b80d8
ClangConfig requires LLVMConfig, so add find_package call in
ClangConfig so find_package(clang REQUIRED CONFIG) will just work. This
makes it easier for cmake based projects to use clang, e.g., tools using
ClangTooling.
Patch by Don Hinton
Differential Revision: http://reviews.llvm.org/D13622
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261290 91177308-0d34-0410-b5e6-96231b3b80d8
-Wcomma will detect and warn on most uses of the builtin comma operator. It
currently whitelists the first and third statements of the for-loop. For other
cases, the warning can be silenced by casting the first operand of the comma
operator to void.
Differential Revision: http://reviews.llvm.org/D3976
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261278 91177308-0d34-0410-b5e6-96231b3b80d8
The code in TypeLocBuilder::pushImpl wasn't correctly handling the case
where an element that has an 8-byte alignment was being pushed.
I plan to follow up with a patch to remove redundancies and simplify the
function.
rdar://problem/23838912
Differential Revision: http://reviews.llvm.org/D16843
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261260 91177308-0d34-0410-b5e6-96231b3b80d8
Using Backend_EmitLL attemps to create a file with an empty filename.
This is problematic in certain environments: an empty filename may be
illegal, or the default output path may not be writable (in the case
where an empty filename would otherwise have some non-failing
semantics). This patch switches to use Backend_EmitMCNull, which
allows CodeGen to run, but does not attempt to create or write an
output file.
Differential Revision: http://reviews.llvm.org/D17405
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261252 91177308-0d34-0410-b5e6-96231b3b80d8
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