[SPIRV]Implementing PopCount for 16 and 64 bits (#191283)
`OpBitCount` only supports 32bit types. So this patch modifies the
codegen to follow a similar pattern as `firstbithigh` and `firstbitlow`.
On 8 and 16 bits, the parameters are zero-extended to 32 bits. With 64
bits it is bitcasting into 2xi32 types. The logic is adapted to larger
component counts as well.
Fix: https://github.com/llvm/llvm-project/issues/142677
---------
Co-authored-by: Joao Saffran <jderezende at microsoft.com>
Make GSYM 64 bit safe and add a new version 2 of the GSYM files (#190353)
# Motivation
GSYM files are approaching the need for 64 bit offsets in the GSYM
files. We also want to add more global data to GSYM files. Right now the
GSYM file format is:
```
Header
AddressOffsets
AddressInfoOffsets
FileTable
StringTable
FunctionInfos
```
The location of the `AddressOffsets`, `AddressInfoOffsets` and
`FileTable` are always immediately following the Header. The
`StringTable` is pointed to by the header and the header uses 32 bit
integers for the string table file offset and file size. The
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[LSR][IndVarSimplify] Update assertion message (#192168)
rewriteLoopExitValues is called by both LSR and IndVarSimplify. Update
the assertion message to match this reality rather than only mentioning
IndVarSimplify.
Merge tag 'linux_kselftest-next-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
- cpu-hotplug: fix to check if cpu hotplug is supported to avoid
test failures when cpu hotplug isn't supported.
- frace: fix to relevant comparisons and path checks in the helper so
it handles those patterns without spurious shell warnings.
- runner.sh: add ktrap support
- tracing: fix to make --logdir option work again
- tracing: fix to check awk supports non POSIX strtonum()
- mqueue: fix incorrectly named settings file to make sure the test
used the correct timeout value
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[runtimes] Aggregate per-target runtime checks in top-level check-${runtime_name} (#191743)
When a per-target runtime build exports a
check-${runtime_name}-${target} proxy, make the top-level
check-${runtime_name} target depend on it, creating
check-${runtime_name} on demand (it may not exist).
This applies regardless of whether the runtime comes from the default
LLVM_ENABLE_RUNTIMES set or from a target-specific
RUNTIMES_<target>_LLVM_ENABLE_RUNTIMES override.
This allows a single `check-${runtime_name}` command to trigger all
per-target tests for that runtime.
Merge tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit tool updates from Shuah Khan:
- terminate kernel under test on SIGINT when it catches SIGINT to make
sure the TTY isn't messed up and terminate the running kernel
- recommend --raw_output=all when KTAP header isn't found in the kernel
output, it's useful to re-run the test with --raw_output=all to find
out the reasons why the test didn't complete.
- skip stty when stdin is not a tty to avoid writing noise to stderr.
- show suites when user runs --list_suites option instead of entire
list of tests to make the output user friendly and concise.
* tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: Terminate kernel under test on SIGINT
kunit: tool: skip stty when stdin is not a tty
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[lldb] Fix deadlock when scripted frame providers load on private state thread (#191913)
Frame providers are an overlay on top of the parent reality (the
unwinder stack). The private state thread (PST) manages the stop of that
parent reality, so the correct view for PST logic IS the parent --
providers should only be applied once the process has settled and
clients query the stopped state.
When a scripted breakpoint's `was_hit` callback calls
`EvaluateExpression` on the PST, `RunThreadPlan` spawns an override PST
(Thread B) and reassigns `m_current_private_state_thread_sp` to it. Two
threads then need to see parent frames:
- Thread B (override PST): processes stop events via
`HandlePrivateEvent` -> `ShouldStop` -> `GetStackFrameList`. If it loads
a provider, the provider's Python code can acquire locks held by Thread
A, causing a deadlock.
- Thread A (original PST): processes events inline via
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[BOLT] Fix DW_FORM_implicit_const values lost during DWARF5 rewriting
Summary:
Fix two bugs in DIEBuilder that caused DW_FORM_implicit_const values to
be zeroed out when rewriting DWARF5 debug sections (--update-debug-sections).
1. In constructDIEFast(), DWARFFormValue was constructed with just the
form code, leaving the value at 0. For DW_FORM_implicit_const,
extractValue() is a no-op since the value is expected to be pre-set.
Fix: use AttrSpec.getFormValue() which initializes the value from the
abbreviation table.
2. In assignAbbrev(), AddAttribute(Attr.getAttribute(), Attr.getForm())
used the two-argument overload which discards the implicit_const
value. Fix: use AddAttribute(Attr) to copy the full DIEAbbrevData.
Fixes https://github.com/llvm/llvm-project/issues/192084
[AMDGPU] Add object linking support for LDS and named barrier lowering in the middle end (#191645)
This is the first patch in a series introducing object linking support
for AMDGPU.
This PR adds the `-amdgpu-enable-object-linking` flag to enable object
linking in the backend. It also updates the `AMDGPULowerModuleLDSPass`
and `AMDGPULowerExecSync` passes to support lowering LDS and named
barrier globals when object linking is enabled.
Merge tag 'modules-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull module updates from Sami Tolvanen:
"Kernel symbol flags:
- Replace the separate *_gpl symbol sections (__ksymtab_gpl and
__kcrctab_gpl) with a unified symbol table and a new __kflagstab
section.
This section stores symbol flags, such as the GPL-only flag, as an
8-bit bitset for each exported symbol. This is a cleanup that
simplifies symbol lookup in the module loader by avoiding table
fragmentation and will allow a cleaner way to add more flags later
if needed.
Module signature UAPI:
- Move struct module_signature to the UAPI headers to allow reuse by
tools outside the kernel proper, such as kmod and
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[RISCV][GISel] Use a single FEQ for fcmp ord/uno x, x (#192022)
When both operands of an ORD/UNO compare are the same register,
the double-FEQ + AND sequence is redundant: a single FEQ x, x
gives the same result. Addresses the FIXME in selectFCmp.
Merge tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc
Pull nolibc updates from Thomas Weißschuh:
- Many new features and optimizations to printf()
- Rename non-standard symbols to avoid collisions with application code
- Support for byteswap.h, endian.h, err.h and asprintf()
- 64-bit dev_t
- Smaller cleanups and fixes to the code and build system
* tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (61 commits)
selftests/nolibc: use gcc 15
tools/nolibc: support UBSAN on gcc
tools/nolibc: create __nolibc_no_sanitize_ubsan
selftests/nolibc: don't skip tests for unimplemented syscalls anymore
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Merge tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- powerpc support for huge pfnmaps
- Cleanups to use masked user access
- Rework pnv_ioda_pick_m64_pe() to use better bitmap API
- Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC
- Backup region offset update to eflcorehdr
- Fixes for wii/ps3 platform
- Implement JIT support for private stack in powerpc
- Implement JIT support for fsession in powerpc64 trampoline
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Merge tag 'm68knommu-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu update from Greg Ungerer:
- fix task info flags handling for 68000 nommu
* tag 'm68knommu-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: Fix task info flags handling for 68000
