[ExpandIRInsts] Fix sitofp/uitofp to float producing garbage instead of inf (#200291)
[ExpandIRInsts] Fix sitofp/uitofp producing garbage instead of inf
s/uitofp of an integer larger than the max finite floating-point value
should produce inf. This can't happen with e.g. an int32 -> float32
conversion, but can happen for e.g. int256 -> float32.
Before this change we'd produce garbage.
Fixes #189054.
Co-Authored-By: Claude Opus 4.8 <noreply at anthropic.com>
netlink: Check permissions for interface flag changes
Reviewed by: pouria, melifaro
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D57332
netlink: Use early exit pattern in _nl_modify_ifp_generic
No functional change.
Reviewed by: pouria, melifaro
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D57349
tools/test/stress2/misc: Fix and enable new tests
The previously committed versions of these tests failed to prevent
duplicate file names in the list of files to process, leading to
missing files when a "mv" commando tried to operate on a file that
had already been renamed.
The test for filenames containing UTF-16 surrogate pairs stays
disabled, since the required kernel changes have not been committed,
yet.
Work around unterminated-string-initialization warnings in acpidb
ACPICA 20250807 fixes these warnings by adding nonstring attributes, but
since ACPICA in stable/14 has not been updated for quite some time,
suppress the warning for clang >= 21 instead. Direct commit to
stable/14, since stable/15 and main already have ACPICA 20250807.
[lldb][Darwin] Correct jGetLoadedDynamicLibrariesInfos typeo & fallback (#200515)
Jonas caught that I had a typeo in checking for the
`sizeof_mh_and_loadcmds` key in the `jGetLoadedDynamicLibrariesInfos`
response from debugserver in DyanmicLoaderDarwin. Fix that.
Also I originally picked a fallback value for the mach header + load
commands as a guess. I've sinced looked at a large UI app's binaries and
based on the size of their actual mh+load commands, picked a default
that will read all the data needed in the majority of cases.
rdar://178283767
Merge commit b0d2b57f7e47 from llvm git (by Phoebe Wang):
[Headers][X86] Remove more duplicated typedefs (#153820)
They are defined in mmintrin.h
This fixes a -Werror warning in openzfs, which compiles for C99, and C99
does not allow for typedef redefinitions.
PR: 292067
MFC after: 1 month
(cherry picked from commit 20450c2e792084f06974cff9d2338e2d0406883f)
Merge commit c1d26c3c2510 from llvm git (by Nikolas Klauser):
[libc++] Fix iostream size ABI break (#185839)
In #124103 we changed the size of various iostream objects, which turns
out to be ABI breaking when compiling non-PIE code.
This ABI break is safe to fix, since for any programs allocating more
memory for the iostream objects, the remaining bytes are simply unused
now.
Fixes #185724
This fixes the ABI break that causes programs that use the standard
streams to terminate in various interesting ways, usually by throwing an
unexpected std::bad_cast exception.
PR: 292067
MFC after: 1 month
[2 lines not shown]
bsd.sys.mk: also suppress clang -Wc++1[47]-extensions warnings for >= 19
This is a direct commit to stable/14, which does not yet default to
C++17 for most in-tree programs. In some cases, this would trigger
-Wc++1[47]-extensions warnings with libc++ 21.
Merge commit 787ba2426148 from llvm git (by Matheus Izvekov):
[clang] create local instantiation scope for matching template template parameters (#183219)
This fixes a bug where a partial substitution from the enclosing scope
is used to prepopulate an unrelated template argument deduction.
Fixes #181166
This fixes an expected error when building the devel/catch port.
PR: 292067
MFC after: 1 month
(cherry picked from commit 5ac874516b27474ab5b3d195544c72fb04b4b86e)
Merge commit 871038759afb from llvm git (by Marco Elver):
Thread Safety Analysis: Fix pointer handling of variables with deprecated attributes (#148974)
de10e44b6fe7 ("Thread Safety Analysis: Support warning on
passing/returning pointers to guarded variables") added checks for
passing pointer to guarded variables. While new features do not
necessarily need to support the deprecated attributes (`guarded_var`,
and `pt_guarded_var`), we need to ensure that such features do not cause
the compiler to crash.
As such, code such as this:
struct {
int v __attribute__((guarded_var));
} p;
int *g() {
return &p.v; // handleNoMutexHeld() with POK_ReturnPointer
[26 lines not shown]
Merge commit d803c61aca0d from llvm git (by Corentin Jabot):
[Clang] Fix a regression introduced by #147046 (#150893)
Static functions have an implicit object argument during deduction.
This fixes an assertion while compiling the devel/corrade port.
PR: 292067
MFC after: 1 month
(cherry picked from commit 1dfe63e4f75fa2a8c94aaf4aefaf48d164bc90db)
Merge commit 924f773f5e26 from llvm git (by Younan Zhang):
[Clang] Don't diagnose missing members when looking at the instantiating class template (#180725)
The perfect matching patch revealed another bug where recursive
instantiations could lead to the escape of SFINAE errors, as shown in
the issue.
Fixes https://github.com/llvm/llvm-project/issues/179118
This fixes compile errors in the www/qt5-webengine port.
PR: 292067
MFC after: 1 month
(cherry picked from commit 3fd796204fe6aa2e8a2b70bb9ea95f7497247fa3)
libcxx-compat: fix llvmorg-21-init-18351-gfcc09b6f0267:
[libc++] Fix std::make_exception_ptr interaction with ObjC (#135386)
Clang treats throwing/catching ObjC types differently from C++ types,
and omitting the `throw` in `std::make_exception_ptr` breaks ObjC
invariants about how types are thrown/caught.
Fixes #135089
Co-authored-by: Louis Dionne <ldionne.2 at gmail.com>
Only use lambdas when in !defined(_LIBCPP_CXX03_LANG), so this will
compile with clang 18 and lower, in C++03 mode and earlier.
PR: 292067
MFC after: 1 month
(cherry picked from commit 987ac31018cba9f1763ad3acfb68b933f58a4c52)
libcxx-compat: revert llvmorg-19-init-5639-ga10aa4485e83:
[libc++] Simplify the implementation of remove_reference (#85207)
GCC 13 introduced the type trait `__remove_reference`. We can simplify
the implementation of `remove_reference` a bit by using it.
This is part of making libc++ 21 build with clang 18.
PR: 292067
MFC after: 1 month
(cherry picked from commit a114ece3e6158f49088b0704b4afef07040d83f3)
libcxx-compat: revert llvmorg-21-init-15984-g650b451d0065:
[libc++] Simplify the implementation of pointer_traits a bit (#142260)
This is part of making libc++ 21 build with clang 18.
PR: 292067
MFC after: 1 month
(cherry picked from commit bb6713d38cc0d988378394f599d81d3a83dbaf03)
llvm-libc-macros: work around gcc defining LDBL_MANT_DIG as 53 on i386
Otherwise, gcc will not be able to compile parts of libc++ 21 in -m32
mode, resulting in errors similar to:
In file included from /usr/src/contrib/llvm-project/libc/shared/str_to_float.h:13,
from /usr/src/contrib/llvm-project/libcxx/src/include/from_chars_floating_point.h:14,
from /usr/src/contrib/llvm-project/libcxx/src/charconv.cpp:12:
/usr/src/contrib/llvm-project/libc/src/__support/str_to_float.h: In function 'void __llvm_libc::internal::set_implicit_bit(__llvm_libc::fputil::FPBits<T>&) [with T = long double]':
/usr/src/contrib/llvm-project/libc/src/__support/str_to_float.h:77:10: error: 'struct __llvm_libc::fputil::FPBits<long double>' has no member named 'set_implicit_bit'
77 | result.set_implicit_bit(result.get_biased_exponent() != 0);
| ^~~~~~~~~~~~~~~~
PR: 292067
MFC after: 1 month
(cherry picked from commit 718e5874be0306ea302fd2b8e1d97fc79682abbe)
libcxx-compat: revert llvmorg-21-init-17684-gae9990ed9651:
[libc++] Remove dead code from <type_traits> (#143854)
Since we've upgraded to GCC 15 now, we can remove a bunch of dead code
from `<type_traits>`.
This is part of making libc++ 21 build with GCC 14.
PR: 292067
MFC after: 1 month
(cherry picked from commit f7bcd8d8c9336b97569265e5ad36b73b30357beb)
libcxx-compat: revert llvmorg-21-init-10154-ge43e8ec7afbd:
[libc++] Remove dead implementation of is_nothrow_convertible and merge the remaining code into is_convertible.h (#137717)
We can use the `__is_nothrow_convertible` builtin unconditionally now,
which makes the implementation very simple, so there isn't much of a
need to keep a separate header around.
This is part of making libc++ 21 build with clang 18.
PR: 292067
MFC after: 1 month
(cherry picked from commit 035396ceda495f456ca570fb715b04a7fc3b25c2)
libcxx-compat: revert llvmorg-21-init-9130-g9e3982d9ae81:
[libc++] Replace __libcpp_{ctz, clz} with __builtin_{ctzg, clzg} (#133920)
`__libcpp_{ctz, clz}` were previously used as fallbacks for `__builtin_{ctzg, clzg}` to ensure compatibility with older compilers (Clang 18 and earlier), as `__builtin_{ctzg, clzg}` became available in Clang 19. Now that support for Clang 18 has been officially dropped in #130142, we can now safely replace all instances of `__libcpp_{ctz, clz}` with `__count{l,r}_zero` (which internally call `__builtin_{ctzg, clzg}` and eliminate the fallback logic.
Closes #131179.
This is part of making libc++ 21 build with clang 18.
PR: 292067
MFC after: 1 month
(cherry picked from commit 821fc643b3cad922e5438760eed9cad0d6d9b3b0)
Merge commit 598f21e9fcf7 from llvm git (by zhijian lin):
[PowerPC] need to set CallFrameSize for the pass PPCReduceCRLogicals when insert a new block (#151017)
In the [ [CodeGen] Store call frame size in
MachineBasicBlock](https://reviews.llvm.org/D156113), it mentions When a
basic block has been split in the middle of a call sequence. the call
frame size may not be zero, it need to set the setCallFrameSize for the
new MachineBasicBlock. but in the function `splitMBB(BlockSplitInfo
&BSI)` in the llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp , it do
not setCallFrameSzie for the new MachineBasicBlock `NewMBB`, we will
setCallFrameSzie in the patch.
the patch fix the crash mention in
https://github.com/llvm/llvm-project/pull/144594#issuecomment-2993736654
This fixes "error in backend: Found 1 machine code errors" while
crypto/openssh/packet.c for PowerPC64.
[4 lines not shown]
libcxx-compat: fix llvmorg-21-init-12415-g3a86e0bd29f3:
[libc++] Optimize std::getline (#121346)
```
-----------------------------------------------
Benchmark old new
-----------------------------------------------
BM_getline_string 318 ns 32.4 ns
```
Move the __bump_stream() lamda in <istream> to a separate function, so
this will compile with clang 18 and lower, in C++03 mode and earlier.
PR: 292067
MFC after: 1 month
(cherry picked from commit 17f1a5e638f845e171ab4e3db2a07bf8c6ac3388)
