computeMapping.
Computing the cost of a mapping takes some time.
Since in Fast mode, the cost is irrelevant, just spare some cycles by not
computing it.
In Greedy mode, we need to choose the best cost, that means that when
the local cost gets more expensive than the best cost, we can stop
computing the repairing and cost for the current mapping.
llvm-svn: 270245
This adds direct support for computing offsets from the thread pointer
for both variants. Of the architectures we support, variant 1 is used
only by aarch64 (but that doesn't seem to be documented anywhere.)
llvm-svn: 270243
The `FreeBSDTargetInfo` class has always set the `__FreeBSD_cc_version`
predefined macro to a rather static value, calculated from the major OS
version.
In the FreeBSD base system, we will start incrementing the value of this
macro whenever we make any signifant change to clang, so we need a way
to configure the macro's value at build time.
Use `FREEBSD_CC_VERSION` for this, which we can define in the FreeBSD
build system using either the `-D` command line option, or an include
file. Stock builds will keep the earlier value.
Differential Revision: http://reviews.llvm.org/D20037
llvm-svn: 270240
This adds support for handling unknown load commands, and a bogus_load_command tests.
Unknown or unsupported load commands can be specified in YAML by their hex value.
llvm-svn: 270239
The previous choice of the insertion points for repairing was
straightfoward but may introduce some basic block or edge splitting. In
some situation this is something we can avoid.
For instance, when repairing a phi argument, instead of placing the
repairing on the related incoming edge, we may move it to the previous
block, before the terminators. This is only possible when the argument
is not defined by one of the terminator.
llvm-svn: 270232
This patch is a first step towards a more extendible method of matching combined target shuffle masks.
Initially this just pulls out the existing basic mask matches and adds support for some 256/512 bit equivalents. Future patterns will require a number of features to be added but I wanted to keep this patch simple.
I hope we can avoid duplication between shuffle lowering and combining and share more complex pattern match functions in future commits.
Differential Revision: http://reviews.llvm.org/D19198
llvm-svn: 270230
This is matching what trunk gcc is accepting. Also adds a missing ssse3
case. PR27779. The amount of duplication here is annoying, maybe it
should be factored into a separate .def file?
llvm-svn: 270224
The CL causes a build breakage on platforms where sizeof(double) == sizeof(long double)
and it incorrectly assumes that sizeof(double) and sizeof(long double) is the same
on the host and the target.
llvm-svn: 270214
The various _l locale extension functions originate from very
different places. Some come from POSIX, some are BSD extensions,
and some are shared BSD and GLIBC extensions. This patch tries to
group the local extension reimplementations by source. This should
make it easier to make libcxx work with POSIX compliant C libraries
that lack these extensions.
The fallback locale functions are also useful on their own for other
lightweight platforms. Putting these fallback implementations in
support/xlocale should enable code sharing.
I have no access to a newlib system or an android system to build
and test with. I _do_ have access to a system without any of the _l
locale extensions though, and I was able to ensure that the new
__posix_l_fallback.h and __strtonum_fallback.h didn't have any massive
problems.
http://reviews.llvm.org/D17416
llvm-svn: 270213
This refactors the logic in X86 to avoid code duplication. It also
splits it in two steps: it first decides if a symbol is local to the DSO
and then uses that information to decide how to access it.
The first part is implemented by shouldAssumeDSOLocal. It is not in any
way specific to X86. In a followup patch I intend to move it to
somewhere common and reused it in other backends.
llvm-svn: 270209
Patch by Nitesh Jain.
Summary: Currently floating point regsiters has eEncodingUint encoding. Hence register write '1.25' will failed. This patch add eEncodingIEEE754 encoding for floating point registers( - ). This patch will fix test_fp_register_write in TestRegisters.py
Reviewers: clayborg, sagar
Subscribers: mohit.bhakkad, jaydeep, bhushan, sdardis, lldb-commits
Differential: D18853
llvm-svn: 270208
Summary:
This change automatically sorts ES6 imports and exports into four groups:
absolute imports, parent imports, relative imports, and then exports. Exports
are sorted in the same order, but not grouped further.
To keep JS import sorting out of Format.cpp, this required extracting the
TokenAnalyzer infrastructure to separate header and implementation files.
Reviewers: djasper
Subscribers: cfe-commits, klimek
Differential Revision: http://reviews.llvm.org/D20198
llvm-svn: 270203
In the android-arm ndk there is a duplicated typedef in link.h
and in unwind.h causing build erros. This CL introduces a HACK
to prevent LLVM from finding unwind.h to fix the issue.
llvm-svn: 270201
Quentin Colombet