Given the work we are doing on ThinLTO, we will never need to support
module groups and working sets in GCC's implementation of LIPO. These
are currently dead code, and will continue to be so.
llvm-svn: 249351
The CATCHRET operand did not match the MachineFunction's CFG. This
mismatch happened because FrameLowering created a new MachineBasicBlock
and updated the CFG but forgot to update the CATCHRET operand.
Let's make sure this doesn't happen again by strengthing the funclet
membership analysis: it can now reason about the membership of all basic
blocks, not just those inside of funclets.
llvm-svn: 249344
that change turns out to not be reasonable: mutating the AST of a parsed
template during instantiation is not a sound thing to do, does not work across
chained PCH / modules builds, and is in any case a special-case workaround to a
more general problem that should be solved centrally.
llvm-svn: 249342
Summary:
On OS X libc++ needs to reexport libc++abi's symbols in order for them to be provided. We explicitly list the symbols to reexport it libcxx/lib/libc++abi2.exp. This patch adds the symbols required by std::bad_array_length which have been missing for some time.
However there is a problem. std::bad_array_length was add to libc++abi in September of 2013 by commit r190479, about a year after everything else. Therefore I think older OS X version have libc++abi versions without std::bad_array_length. On those systems
libc++ won't build with this change because we will try and export undefined symbols.
The workaround I would write to support older systems depends on the amount of people who would need it. If only a small number of developers are affected it might be sufficient to provide a CMake switch like `LIBCPP_LIBCPPABI_HAS_BAD_ARRAY_LENGTH` which is
ON by default and can be disabled by those who need it. Otherwise I think we should try to automatically detect if the symbols are present in `/usr/lib/libc++abi.dylib` and configure accordingly. I would prefer the first solution because writing CMake sucks.
Reviewers: mclow.lists, aprantl
Subscribers: aprantl, cfe-commits
Differential Revision: http://reviews.llvm.org/D13445
llvm-svn: 249339
This patch add support for leak sanitizer for aarch64. Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).
llvm-svn: 249337
Summary:
We are currently only using these aliases for VOPC instructions,
but this helper will make it easier to use them everywhere.
These aliases allow for the automatic matching of instructions
with forced 32-bit encoding. Eventually, we should be able to remove
the custom C++ logic we have for this in the assembler.
Reviewers: arsenm
Subscribers: arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D13396
llvm-svn: 249330
include/clang/CodeGenABITypes.h is in meant to be included by external
users, but using a unique_ptr on the private CodeGenModule introduces a
dependency on the type definition that prevents such a use.
NFC
llvm-svn: 249328
Otherwise, the map will observe changes as long as MergeFunctions is alive. This
is bad because follow-up passes could replace-all-uses-with on the key of an
entry in the map. The value handle callback of ValueMap however asserts that the
key type matches.
rdar://22971893
llvm-svn: 249327
We were previously codegen'ing memcpy as regular load/store operations and
hoping that the register allocator would allocate registers in ascending order
so that we could apply an LDM/STM combine after register allocation. According
to the commit that first introduced this code (r37179), we planned to teach the
register allocator to allocate the registers in ascending order. This never got
implemented, and up to now we've been stuck with very poor codegen.
A much simpler approach for achieving better codegen is to create MEMCPY pseudo
instructions, attach scratch virtual registers to them and then, post register
allocation, expand the MEMCPYs into LDM/STM pairs using the scratch registers.
The register allocator will have picked arbitrary registers which we sort when
expanding the MEMCPY. This approach also avoids the need to repeatedly calculate
offsets which ultimately ought to be eliminated pre-RA in order to decrease
register pressure.
Fixes PR9199 and PR23768.
[This is based on Peter Collingbourne's r238473 which was reverted.]
Differential Revision: http://reviews.llvm.org/D13239
Change-Id: I727543c2e94136e0f80b8e22d5642d7b9ee5b458
Author: Peter Collingbourne <peter@pcc.me.uk>
llvm-svn: 249322
For RealFileSystem this is getcwd()/chdir(), the synthetic file systems can
make up one for themselves. OverlayFileSystem now synchronizes the working
directories when a new FS is added to the overlay or the overlay working
directory is set. This allows purely artificial file systems that have zero
ties to the underlying disks.
Differential Revision: http://reviews.llvm.org/D13430
llvm-svn: 249316
This is a simple file system tree of memory buffers that can be filled by a
client. In conjunction with an OverlayFS it can be used to make virtual
files accessible right next to physical files. This can be used as a
replacement for the virtual file handling in FileManager and which I intend
to remove eventually.
llvm-svn: 249315
"msr pan, #imm", while only 1-bit immediate values should be valid.
Changed encoding and decoding for msr pstate instructions.
Differential Revision: http://reviews.llvm.org/D13011
llvm-svn: 249313
Summary:
An instruction like "(d)la $5, symbol+8" previously would have crashed the
assembler as it contains an expression. This is now fixed.
A few tests cases have also been changed to reflect these changes, however
these should only be syntax changes. Some new test cases have also been
added.
Patch by Scott Egerton.
Reviewers: vkalintiris, dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12760
llvm-svn: 249311
Summary: Add the second template argument to the unique_ptr mock, and update the matcher so that it only matches against cases where the second argument is the default.
Reviewers: klimek
Subscribers: alexfh, cfe-commits
Differential Revision: http://reviews.llvm.org/D13433
llvm-svn: 249305
Marshall Clow