construction and destruction.
PassRegistrationListener is intended for use as a generic listener.
In some cases, PassRegistrationListener-derived classes were being
created, and automatically registered and de-registered in static
constructors and destructors. Since ManagedStatics are destroyed
prior to program shutdown, this leads to errors where an attempt is
made to access a ManagedStatic that has already been destroyed.
Reviewed by: rnk, dblaikie
Differential Revision: http://reviews.llvm.org/D4106
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210724 91177308-0d34-0410-b5e6-96231b3b80d8
This destructor is run as part of static program termination, and
so all ManagedStatics (including this lock) will have been
destroyed by llvm_shutdown. Furthermore, if there is actually
a race condition during static program termination, then we are
just hiding a bug somewhere else, because other threads should
not be running at this point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210717 91177308-0d34-0410-b5e6-96231b3b80d8
This will allow inlining get_magic, which should in turn fix one of the mingw
build problems after the switch to std::error_code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210712 91177308-0d34-0410-b5e6-96231b3b80d8
We weren't doing this before, so all instruction using the *Helper
classes were considered for any ALU slot.
This fixes a hang in the builtin-char-clz-1.0.generated.cl piglit test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210703 91177308-0d34-0410-b5e6-96231b3b80d8
Previously we would always print the offset as decimal, regardless of
the formatting requested. Now we use the formatImm() helper so the value
is printed as the client (LLDB in the motivating example) requested.
Before:
ldr.w r8, [sp, #180] @ always
After:
ldr.w r8, [sp, #0xb4] @ when printing hex immediates
ldr.w r8, [sp, #0180] @ when printing decimal immediates
rdar://17237103
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210701 91177308-0d34-0410-b5e6-96231b3b80d8
This is the same problem fixed in r210664 for more types.
The test passes without this fix. For some reason
I'm only hitting this when creating selects lowered
to v2i32 selects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210692 91177308-0d34-0410-b5e6-96231b3b80d8
The idea of this patch is to turn llvm/Support/system_error.h into a
transitional header that just brings in the erorr_code api to the llvm
namespace. I will remove it shortly afterwards.
The cases where the general idea needed some tweaking:
* std::errc is a namespace in msvc, so we cannot use "using std::errc". I could
add an #ifdef, but there were not that many uses, so I just added std:: to
them in this patch.
* Template specialization had to be moved to the std namespace in this
patch set already.
* The msvc implementation of default_error_condition doesn't seem to
provide the same transformations as we need. Not too surprising since
the standard doesn't actually say what "equivalent" means. I fixed the
problem by keeping our old mapping and using it at error_code
construction time.
Despite these shortcomings I think this is still a good thing. Some reasons:
* The different implementations of system_error might improve over time.
* It removes 925 lines of code from llvm already.
* It removes 6313 bytes from the text segment of the clang binary when
it is built with gcc and 2816 bytes when building with clang and
libstdc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210687 91177308-0d34-0410-b5e6-96231b3b80d8
The manual lists them as *_RTN_U32, not *_U32_RTN, which is more
consistent with how every other sized instruction is named.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210674 91177308-0d34-0410-b5e6-96231b3b80d8
There seem to be only 2 places that produce these,
and it's kind of tricky to hit them.
Also fixes failure to bitcast between i64 and v2f32,
although this for some reason wasn't actually broken in the
simple bitcast testcase, but did in the scalar_to_vector one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210664 91177308-0d34-0410-b5e6-96231b3b80d8
This patch moves part of the logic implemented by the target specific
combine rules added at r210477 to a separate helper function.
This should make easier to add more rules for matching AVX/AVX2 horizontal
adds/subs.
This patch also fixes a problem caused by a wrong check performed on indices
of extract_vector_elt dag nodes in input to the scalar adds/subs.
New tests have been added to verify that we correctly check indices of
extract_vector_elt dag nodes when selecting a horizontal operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210644 91177308-0d34-0410-b5e6-96231b3b80d8
Pass initialization requires to initialize TargetMachine for back-end
specific passes. This commit creates a new macro INITIALIZE_TM_PASS to
simplify this kind of initialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210641 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is to improve global merge pass and support global symbol merge.
The global symbol merge is not enabled by default. For aarch64, we need some
more back-end fix to make it really benifit ADRP CSE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210640 91177308-0d34-0410-b5e6-96231b3b80d8
Some c++ libraries (libstdc++ at least) don't seem to map to the generic
category in in the system_category's default_error_condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210635 91177308-0d34-0410-b5e6-96231b3b80d8
Most Windows platforms use auxiliary data for unwinding. This information is
stored in the .pdata section. The encoding format for the data differs between
architectures and Windows variants. Windows MIPS and Alpha use identical
formats; Alpha64 is the same with different widths. Windows x86_64 and Itanium
share the representation. All Windows CE entries are identical irrespective of
the architecture. ARMv7 (Windows [NT] on ARM) has its own format.
This enumeration will become the differentiator once the windows EH emission
infrastructure is generalised, allowing us to emit the necessary unwinding
information for Windows on ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210634 91177308-0d34-0410-b5e6-96231b3b80d8
MSVC doesn't seem to provide any is_error_code_enum enumeration for the
windows errors.
Fortunately very few places in llvm have to handle raw windows errors, so
we can just construct the corresponding error_code directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210631 91177308-0d34-0410-b5e6-96231b3b80d8
Extract these from some of my other patches, since this
is the only thing really making them dependent on each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210627 91177308-0d34-0410-b5e6-96231b3b80d8
DwarfException served as a base class for exception handling directive emission.
However, this is also used by other exception models (e.g. Win64EH). Rename
this class to EHStreamer and split it out of DwarfException.h. NFC.
Use the opportunity to fix up some of the documentation comments to match
current LLVM style. Also rename some functions to conform better with current
LLVM coding style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210622 91177308-0d34-0410-b5e6-96231b3b80d8
