[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.
[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
[LV][VPlan] Print VPlan after construction and initial optimizations. NFC (#187443)
This patch add a helper pass `printOptimizedVPlan` to print the plan at
the end of the VPlan construction and optimize pipeline.
This patch enables the opportunity that we can further clamp and attach
VF range after `VPlanTransforms::optimize` and not changing the test
printing (#172799).
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The biggest changes are MPAM enablement in drivers/resctrl and new PMU
support under drivers/perf.
On the core side, FEAT_LSUI lets futex atomic operations with EL0
permissions, avoiding PAN toggling.
The rest is mostly TLB invalidation refactoring, further generic entry
work, sysreg updates and a few fixes.
Core features:
- Add support for FEAT_LSUI, allowing futex atomic operations without
toggling Privileged Access Never (PAN)
- Further refactor the arm64 exception handling code towards the
generic entry infrastructure
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[CMake] Pass ZLIB_LIBRARY_* to runtimes bootstrap (#191555)
Runtimes external project (compiler-rt / combined runtimes) reconfigures
with an initial cache that did not propagate `ZLIB_LIBRARY_RELEASE`.
CMake 4.x `FindZLIB` may leave `ZLIB_LIBRARY` unset while finding
headers, leading to:
```
-- Could NOT find ZLIB (missing: ZLIB_LIBRARY) (found version "...")
```
and later when loading LLVM exports from the main build:
```
The link interface of target "LLVMSupport" contains: ZLIB::ZLIB
but the target was not found.
```
This was found by building the Windows installer with:
```
llvm\utils\release\build_llvm_release.bat --x64 --version 23.0.0 --skip-checkout --local-python
```
[flang][CodeGen] Fix address space mismatch for CUF globals in AddrOfOpConversion (#190408)
AddrOfOpConversion in CodeGen.cpp only handled `LLVM::GlobalOp` when
determining the address space for `llvm.mlir.addressof`. When the global
was still a `fir::GlobalOp` (not yet converted), it fell back to address
space 0, breaking CUF constant globals (addr_space 4) and AMDGPU targets
(global addr_space 1).
This extends the upstream fix (#192111, which only covered Constant) to
also handle Shared and Managed CUF data attributes, and returns
`std::nullopt` instead of 0 for non-CUF globals so the target's default
address space is preserved.
[lldb][debugserver] Fix lldb testsuite routine parsing logs (#192157)
I changed how lldb and debugserver fetch binaries when attaching to a
process (only fetching the addresses of binaries, not the detailed
information) but a utility function was parsing the log file and
expected the detailed information in the initial response. Updated it to
expect detailed information in the initial response, or in the
subsequent query when the first response is addresses-only.
HBSD: Bump ports-mgmt/pkg to 2.7.1
This also resolves the merge conflict in ports-mgmt/pkg/distinfo.
Signed-off-by: Shawn Webb <shawn.webb at hardenedbsd.org>
[CIR] Implement array-to-incomplete-array cast (#192138)
This is a noop cast that is allowed in some situations in C++20, and is
validated with one of the test suites. This patch adds a very defensive
NYI diagnostic to replace the other one, plus implements the array decay
case.
Merge tag 'ras_core_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Add new AMD MCA bank names and types to the MCA code, preceded by a
clean up of the relevant places to have them more developer-friendly
(read: sort them alphanumerically and clean up comments) such that
adding new banks is easy
* tag 'ras_core_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce, EDAC/mce_amd: Add new SMCA bank types
x86/mce, EDAC/mce_amd: Update CS bank type naming
x86/mce, EDAC/mce_amd: Reorder SMCA bank type enums
Merge tag 'edac_updates_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- amd64_edac: Add support for AMD Zen 3 (family 19h, models 40h–4fh)
- i10nm: Add GNR error information decoder support as an alternative to
the firmware decoder
- versalnet: Restructure the init/teardown logic for correct and more
readable error handling. Also, fix two memory leaks and a resource
leak
- Convert several internal structs to use bounded flex arrays, enabling
the kernel's runtime checker to catch out-of-bounds memory accesses
- Mark various sysfs attribute tables read-only, preventing accidental
modification at runtime
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[lld][llvm-objcopy] Enable Xbox subsystem for PE images. (#191779)
This patch enables selecting the Xbox subsystem (IMAGE_SUBSYSTEM_XBOX)
for PE images. Certain existing tools used in the Xbox homebrew scene
expect images to use the Xbox subsystem, so it's nice to be able to set
this within the LLVM toolchain instead of invoking yet another tool or
manually patching the binaries.
[flang] Recognize generic allocations in Flang LICM. (#191923)
Instead of matching particular operations like `fir.alloca`
we can use `MemoryEffectOpInterface` to figure out if a location
is a new allocation.
[analyzer] Fix alignment of entries in -analyzer-help (#190570)
Fix a formatting bug in `AnalyzerOptions::printFormattedEntry` (used by
`clang -cc1 -print-analyzer-options`), which led to misalignment of a
checker description.
This commit ensures that `printFormattedEntry` inserts a newline in the
corner case when the length of the name of a checker is exactly equal to
`EntryWidth`. (In this situation the old code inserted a space between
the name and the description, so this description was not aligned with
the other descriptions.)
Additionally this commit also fixes the corner case where the pad before
the checker name (specified by `InitialPad`) is 0. Before the fix, due
to `llvm::raw_formatted_ostream::PadToColumn` logic, `InitialPad = 0`
still added one space character as padding before the checker name.
Fortunately `InitialPad = 0` was never used in the program, so this bug
was not visible to the user.
These changes are both tested by the freshly added unit tests.
Merge tag 'x86_sev_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Change the SEV host code handling of when SNP gets enabled in order
to allow the machine to claim SNP-related resources only when SNP
guests are really going to be launched. The user requests this by
loading the ccp module and thus it controls when SNP initialization
is done
So export an API which module code can call and do the necessary SNP
setup only when really needed
- Drop an unnecessary write-back and invalidate operation that was
being performed too early, since the ccp driver already issues its
own at the correct point in the initialization sequence
- Drop the hotplug callbacks for enabling SNP on newly onlined CPUs,
which were both architecturally unsound (the firmware rejects
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