Allows Clang to use LLVM's fixes-x18 option
This patch allows clang to have llvm reserve the x18
platform register on AArch64. FreeBSD will use this in the kernel for
per-cpu data but has no need to reserve this register in userland so
will need this flag to reserve it.
This uses llvm r226664 to allow this register to be reserved.
Patch by Andrew Turner.
Requested by: andrew
triple ids
This only allows testing and does not change the defaults for mips/mips64.
They still build/use gcc by default.
Differential Revision: https://reviews.freebsd.org/D1190
Reviewed by: dim
PR20228: don't retain a pointer to a vector element after the
container has been resized.
This fixes a possible crash when compiling certain parts of libc++'s
type_traits header.
Implement vaarg lowering for ppc32. Lowering of scalars and
aggregates is supported. Complex numbers are not.
This adds va_args support for PowerPC (32 bit) to clang.
Debug info: fix a crash when emitting IndirectFieldDecls, which were
previously not handled at all.
rdar://problem/16348575
MFC after: 1 week
Sponsored by: DARPA, AFRL
Debug info: fix a crasher when when emitting debug info for
not-yet-completed templated types. getTypeSize() needs a complete type.
rdar://problem/15931354
PR: 193347
MFC after: 3 days
Sponsored by: DARPA, AFRL
Fix a bug in xmmintrin.h.
The last step of _mm_cvtps_pi16 should use _mm_packs_pi32, which is a function
that reads two __m64 values and packs four 32-bit values into four 16-bit
values.
<rdar://problem/16873717>
MFC after: 3 days
Implement a new -fstandalone-debug option. rdar://problem/15685848
It controls everything that -flimit-debug-info used to, plus the
vtable type optimization. The old -fno-limit-debug-info option is now an
alias to -fstandalone-debug and vice versa.
Standalone is the default on Darwin until dtrace is updated to work with
non-standalone debug info (rdar://problem/15758808).
Note: I kept the LimitedDebugInfo name in CodeGenOptions::DebugInfoKind
because NoStandaloneDebugInfo sounded even more confusing.
Debug info: Generate debug info for variadic functions.
Paired commit with LLVM.
rdar://problem/13690847
This merege includes changes to use the Clang 3.4 API (revisions
199686 and 200082) in lib/CodeGen/CGDebugInfo.cpp:
getParamType -> getArgType
getNumParams -> getNumArgs
getReturnType -> getResultType
Sponsored by: DARPA, AFRL
all FreeBSD versions, not just 10.x and earlier. Apparently too many
people seem to have trouble with post-1993 formats.
Also remove the related notes about messing with kernel configuration
files from UPDATING, which are now superfluous.
Requested by: many
MFC after: 3 days
in clang's InitHeaderSearch.cpp. This has been superseded by David
Chisnall's commit in r255321.
Moreover, if libc++ is used, the libstdc++ include directories should
not be in the search path at all. These directories are now only used
if you pass -stdlib=libstdc++.
MFC after: 3 days
X-MFC-With: r261991
Don't produce an alias between destructors with different calling conventions.
Fixes pr19007.
(Please note that is an LLVM PR identifier, not a FreeBSD one.)
This should fix Firefox and/or libxul crashes (due to problems with
regparm/stdcall calling conventions) on i386.
Reported by: multiple users on freebsd-current
PR: bin/187103
MFC after: 1 week
Give sparcv9 the ability to set the target cpu. Change it from
accepting -march which doesnt exist on sparc gcc to -mcpu. While here
adjust a few tests to not write an unused temporary file.
Implement getDwarfEHStackPointer() and initDwarfEHRegSizeTable() for sparcv9.
Enables the libgcc-specific undocumented __builtin_dwarf_sp_column() and
__builtin_init_dwarf_reg_size_table() builtins to be compiled for
sparc64.
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.
The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.
Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>
MFC after: 1 month
Allow transformation of VariableArray to ConstantArray.
In the following code:
struct A { static const int sz; };
template<class T> void f() { T arr[A::sz]; }
the array 'arr' is represented as a variable size array in the template.
If 'A::sz' gets value below in the translation unit, the array in
instantiation can turn into constant size array.
This change fixes PR18633.
Differential Revision: http://llvm-reviews.chandlerc.com/D2688
This fixes "Assertion failed: (T::isKind(*this)), function castAs"
errors, which can occur when building the security/quantis port.
Reported by: ale
MFC after: 3 days
CodeGen: Don't emit linkage on thunks that aren't emitted because they're
vararg.
This can happen when we're trying to emit a thunk with available_externally
linkage with optimization enabled but bail because it doesn't make sense for
vararg functions.
[LLVM] PR18098.
This should fix clang "Broken module found, compilation aborted" errors when
building the qt4-based dvbcut port.
Reported by: se
MFC after: 3 days
Move the body of GCCInstallationDetector ctor into an init() function
and call it from its only user. The linux toolchain. This saves quite
a lot of directory searching on other platforms.
See http://docs.freebsd.org/cgi/mid.cgi?51E6FAF5.3080802 for the
original discussion. With this fix, the search for gcc installations is
completely eliminated on FreeBSD.
Reported by: Kurt Lidl <lidl@pix.net>
MFC after: 3 days
Add ms_abi and sysv_abi attribute handling.
Based on a patch by Benno Rice!
This will help to develop EFI support.
Approved by: re (kib)
Verified by: benno
MFC after: 1 week
To enable them, set WITH_GCC and WITH_GNUCXX in src.conf.
Make clang default to using libc++ on FreeBSD 10.
Bumped __FreeBSD_version for the change.
GCC is still enabled on PC98, because the PC98 bootloader requires GCC to build
(or, at least, hard-codes the use of gcc into its build).
Thanks to everyone who helped make the ports tree ready for this (and bapt
for coordinating them all). Also to imp for reviewing this and working on the
forward-porting of the changes in our gcc so that we're getting to a much
better place with regard to external toolchains.
Sorry to all of the people who helped who I forgot to mention by name.
Reviewed by: bapt, imp, dim, ...
Fix handling of braced-init-list as reference initializer within
aggregate initialization. Previously we would incorrectly require an
extra set of braces around such initializers.
Pull in r188718 from upstream clang trunk:
Handle init lists and _Atomic fields.
Fixes PR16931.
These fixes are needed for the atomic_flag type to work correctly in our
stdatomic.h.
Requested by: theraven
PR16727: don't try to evaluate a potentially value-dependent
expression when checking for missing parens in &&/|| expressions.
This fixes an assertion encountered when building the lang/sdcc port.
Reported by: kwm
This patch implements __get_cpuid_max() as an inline and __cpuid()
and __cpuid_count() as macros to be compatible with GCC's cpuid.h.
It also adds bit_<foo> constants for the various feature bits as
described in version 039 (May 2011) of Intel's SDM Volume 2 in the
description of the CPUID instruction. The list of bit_<foo>
constants is a bit exhaustive (GCC doesn't do near this many). More
bits could be added from a newer version of SDM if desired.
Patch by John Baldwin!
This should fix several ports which depend on this functionality being
available.
MFC after: 1 week
Allow clang to build __clear_cache on ARM.
__clear_cache is special. It needs no signature, but is a real function in
compiler_rt or libgcc.
Patch by Andrew Turner.
This allows us to build the __clear_cache function in compiler-rt.
Emit native implementations of atomic operations on FreeBSD/armv6.
Just like on Linux, FreeBSD/armv6 assumes the system supports
ldrex/strex unconditionally. It is also used by the kernel. We can
therefore enable support for it, like we do on Linux.
While there, change one of the unit tests to explicitly test against
armv5 instead of armv7, as it actually tests whether libcalls are
emitted.
Add support for optimized (non-generic) atomic libcalls.
For integer types of sizes 1, 2, 4 and 8, libcompiler-rt (and libgcc)
provide atomic functions that pass parameters by value and return
results directly.
libgcc and libcompiler-rt only provide optimized libcalls for
__atomic_fetch_*, as generic libcalls on non-integer types would make
little sense. This means that we can finally make __atomic_fetch_*
work
on architectures for which we don't provide these operations as
builtins
(e.g. ARM).
This should fix the dreaded "cannot compile this atomic library call
yet" error that would pop up once every while.
This should make it possible for me to get C11 atomics working on all of
our platforms.
upcoming 3.3 release (branching and freezing expected in a few weeks).
Preliminary release notes can be found at the usual location:
<http://llvm.org/docs/ReleaseNotes.html>
An MFC is planned once the actual 3.3 release is finished.
Refactor the x86 CPU name logic in the driver and pass -march and -mcpu
flag information down from the Clang driver into the Gold linker plugin
for LTO. This allows specifying -march on the linker commandline and
should hopefully have it pass all the way through to the LTO optimizer.
Fixes PR14697.
Pull in r175919 from upstream clang trunk:
Driver: Pass down the -march setting down to -cc1as on x86 too.
The assembler historically didn't make use of any target features, but this has
changed when support for old CPUs that don't support long nops was added.
This should fix the long nops that still occurred in crt*.o, and
possibly other object files, if the system was compiled for a CPU that
does not support those, such as Geode.
Note that gcc on i386 also does not pass through any -march, -mcpu or
-mtune setting to gas, but this has not caused any trouble yet, because
gas defaults to i386.
Reported by: lev
MFC after: 1 week
Dont use/link ARCMT, StaticAnalyzer and Rewriter to clang when the user
specifies not to. Dont build ASTMatchers with Rewriter disabled and
StaticAnalyzer when it's disabled.
Without all those three, the clang binary shrinks (x86_64) from ~36MB
to ~32MB (unstripped).
To disable these clang components, and get a smaller clang binary built
and installed, set WITHOUT_CLANG_FULL in src.conf(5). During the
initial stages of buildworld, those extra components are already
disabled automatically, to save some build time.
MFC after: 1 week
Add a new warning -Wmissing-variable-declarations, to warn about variables
defined without a previous declaration. This is similar to
-Wmissing-prototypes, but for variables instead of functions.
