libgcc_{eh,s}: restore __*_frame_info symbols post llvm18
The upstream llvm commit 5eb44df1b64d made the addition of these GCC
compatability symbols dependent on build configuration rather than
hardcoded for amd64, i386, and powerpc. Reenable them.
Reviewed by: dim
Differential Revision: https://reviews.freebsd.org/D44877
(cherry picked from commit 0b9e3585805e83718c3ebdab923aca51597193cd)
Revert commit 925a11a5f221 from llvm-project (by Nikolas Klauser):
[libc++] Simplify is_convertible
GCC 13 has added __is_convertible(), so we don't need to keep the fallback implementation around.
Reviewed By: #libc, Mordante
Spies: Mordante, libcxx-commits
Differential Revision: https://reviews.llvm.org/D157939
This should allow buildworld with gcc 12 to work again.
PR: 276104
MFC after: 1 month
(cherry picked from commit 2365f012951e5f0333cf31c690f668299c86b30e)
Merge commit 37b7207651b4 from llvm-project (by zhongyunde at huawei.com):
[SimplifyCFG] Fix crash when there is unreachable large index (#88616)
The large case index out of scope is dead code, but it is still be
created for TableContents in SwitchLookupTable::SwitchLookupTable,
so make sure the table size after growing should not get smaller.
Fix https://github.com/llvm/llvm-project/issues/88607
This should fix "Assertion failed: (idx < size()), function operator[]"
when building the science/dynare port.
PR: 276104, 278320
Reported by: yuri
MFC after: 1 month
(cherry picked from commit 514c98ba14a0f590891844d1a6bec0ac4de54489)
libcompiler_rt Makefile.inc: update _Float16/__bf16 checks
Clang supports __bf16 for riscv from version 18.0 onwards, so update the
checks for it. While here, rewrite the checks so they are hopefully more
readable, and also handle gcc a little better.
In addition, define COMPILER_RT_HAS_FLOAT16 and COMPILER_RT_HAS_BFLOAT16
when these features should be available, since there are some parts in
compiler-rt that check for these defines.
PR: 276104
MFC after: 1 month
(cherry picked from commit f276adc148433d009d198c2ebccdd3303377e237)
tau32-ddk.c: suppress warning about ignored attributes
This driver is heavily obfuscated, and causes a -Werror warning with
clang 18 now:
sys/dev/ce/tau32-ddk.c:358:10: error: 'const' attribute on function returning 'void'; attribute ignored [-Werror,-Wignored-attributes]
358 | ((const))nvqbt(void){__asm __volatile("repe; nop; repe; nop;"
| ^
Supress the warning since the driver can never be fixed. Direct commit
to stable/13, since the driver has been removed in 14.x and later.
PR: 276104
Merge commit 55c466da2f2f from llvm-project (by Benjamin Kramer):
[X86][AVX512BF16] Add a few missing insert/extract patterns
These are really the same as the f16 (and i16) instructions, but we need
them for any type that can occur.
Merge commit 2e4e04c59043 from llvm-project (by Phoebe Wang):
[X86][BF16] Do not lower to VCVTNEPS2BF16 without AVX512VL (#86395)
Fixes: #86305
These should fix "fatal error: error in backend: Cannot select: t71:
v32bf16 = insert_subvector t67, t64, Constant:i32<16>" when building the
misc/ncnn port.
PR: 278305
Reported by: yuri
[3 lines not shown]
sanitizers: mark __elf_aux_vector as weak, to allow linking without libsys
After libsys was introduced, linking sanitized programs started failing
with:
# c++ -fsanitize=address main.cc
ld: error: undefined symbol: __elf_aux_vector
>>> referenced by sanitizer_linux_libcdep.cpp:950 (/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp:950)
>>> sanitizer_linux_libcdep.o:(__sanitizer::ReExec()) in archive /usr/lib/clang/17/lib/freebsd/libclang_rt.asan-x86_64.a
c++: error: linker command failed with exit code 1 (use -v to see invocation)
Mark __elf_aux_vector as weak in the internal sanitizer declaration, so
the linker will accept it at link time. The dynamic linker will then
take care of the symbol at run time.
Suggestion by: brooks
PR: 276104, 277393
MFC after: 1 month
(cherry picked from commit 8b181c2fbaa8c6b32e5510ef6e3a6d364ff4710e)
libcompiler_rt Makefile.inc: include bsd.compiler.mk to fix build
Apparently libgcc_s has always included libcompiler_rt's Makefile.inc
without first including bsd.compiler.mk, even though Makefile.inc used
COMPILER_TYPE already. It looks like we were just lucky that the
expression was not malformed.
PR: 276104
Reported by: Herbert J. Skuhra <herbert at gojira.at>
MFC after: 1 month
(cherry picked from commit 4c983a2886877a855ac3a2836b15d80356fbb8d4)
Fix arm64 build after llvm 18.1.3 upgrade
Apparently clang 18 has become more strict about using floating point
registers in inline assembly when -mgeneral-regs-only is used. This
causes sys/arm64/arm64/vfp.c to fail to compile, with "error:
instruction requires: fp-armv8", and "error: expected readable system
register".
To fix it, similar to other files compiled for arm64, disable
-mgeneral-regs-only for this particular file.
PR: 276104
MFC after: 1 month
(cherry picked from commit f4d93b67611f6f8b19db7bac6b0973b2ef0cfcb6)
Fix arm64 build after llvm 18.1.3 upgrade (take 2)
Instead of compiling the whole sys/arm64/arm64/vfp.c file without
-mgeneral-regs-only, which might have unwanted side effects, add
".arch_extension fp" / ".arch_extension nofp" pairs to the inline
assembly.
PR: 276104
Suggested by: andrew
MFC after: 1 month
(cherry picked from commit 61e482f2fcd53bbc7fd3d4cc8b7df79d5d57d75c)
libcompiler_rt Makefile.inc: don't build bfloat16 support for gcc < 13
Older versions of gcc produce "error: unknown type name '__bf16'".
PR: 276104
MFC after: 1 month
(cherry picked from commit 2e226748a961329471f5b51483318b94c8735f34)
