LLVM/project b47a631libc/fuzzing/__support CMakeLists.txt, libc/src/__support freestore.h block.h

[libc] Implement dual freestore rotation for baremetal heap (#209811)

Implement dual FreeStore rotation in FreeListHeap under
LIBC_COPT_BAREMETAL_HEAP_ENABLE_FREESTORE_ROTATION option for baremetal
targets.

- Allocations pull from active store; free() quarantines blocks into
non-active store (1 - active).
- On allocation failure in active store, rotate() flips active index and
migrates/coalesces quarantined blocks into the new active store.
- Added 2-bit prev_free tracking in BlockRef metadata to distinguish
freestore indices.
- Added unit smoke tests and updated fuzzer for dual freestore rotation.

Assisted-by: Gemini and Claude based automation tool (human-in-the-loop)

---------

Co-authored-by: Yifan Zhu <yfzhu at google.com>
Co-authored-by: Claude Fable 5.1 <noreply at anthropic.com>
DeltaFile
+108-39libc/src/__support/freelist_heap.h
+117-4libc/test/src/__support/freelist_heap_test.cpp
+48-15libc/src/__support/block.h
+38-4libc/src/__support/freestore.h
+18-0libc/test/src/__support/CMakeLists.txt
+14-0libc/fuzzing/__support/CMakeLists.txt
+343-626 files not shown
+373-6212 files

FreeBSD/ports 7673e97textproc/md4c Makefile distinfo

textproc/md4c: Update 0.5.3 => 0.6.0

Changelog:
https://github.com/mity/md4c/blob/v0.6.0/CHANGELOG.md

PR:             298778
Sponsored by:   UNIS Labs (vvd, commit patch)
MFH:            2026Q3

(cherry picked from commit 4f7ef7d80fb16336273a2a09850fa4dbc5ff97ae)
DeltaFile
+3-3textproc/md4c/distinfo
+2-2textproc/md4c/Makefile
+5-52 files

FreeBSD/ports 4f7ef7dtextproc/md4c Makefile distinfo

textproc/md4c: Update 0.5.3 => 0.6.0

Changelog:
https://github.com/mity/md4c/blob/v0.6.0/CHANGELOG.md

PR:             298778
Sponsored by:   UNIS Labs (vvd, commit patch)
MFH:            2026Q3
DeltaFile
+3-3textproc/md4c/distinfo
+2-2textproc/md4c/Makefile
+5-52 files

LLVM/project ffeffcelldb/include/lldb/Target Process.h Target.h, lldb/include/lldb/Utility DataExtractor.h ConstString.h

[lldb] Consistently use "null-terminated" across LLDB (NFC) (#224801)

It appears that both spellings are correct, but "null terminator" is far
more common, while "NUL terminator" is technically precise regarding the
ASCII character name. Most common in LLDB was "NULL terminated" which is
the worst of both worlds. This rallies around "null-terminated".

- Adjective -> null-terminated
- Verb -> null-terminate
- Nouns left unhyphenated but lowercased: null terminator, null
termination
DeltaFile
+8-8lldb/unittests/Utility/DataEncoderTest.cpp
+8-8lldb/include/lldb/Utility/ConstString.h
+7-7lldb/include/lldb/Utility/DataExtractor.h
+6-7lldb/include/lldb/Target/Target.h
+6-6lldb/include/lldb/Target/Process.h
+5-5lldb/source/Utility/Stream.cpp
+40-4153 files not shown
+121-12359 files

LLVM/project 1f01cb4llvm/lib/Transforms/Vectorize SLPVectorizer.cpp, llvm/test/Transforms/SLPVectorizer/X86 narrowed-reduction-leaves-known-bits.ll

[SLP]Fix crash in bool bitmask reduction match after tree vectorization

The known bits of the narrowed reduction leaves were computed after the
tree vectorization, which drops the operands of the vectorized scalars,
so the analysis dereferenced null operands. Match the bitmask form before
the vectorization and pass the result to the emission.

Fixes #225538

Reviewers: 

Pull Request: https://github.com/llvm/llvm-project/pull/225568
DeltaFile
+60-0llvm/test/Transforms/SLPVectorizer/X86/narrowed-reduction-leaves-known-bits.ll
+10-4llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+70-42 files

LLVM/project 182181cmlir/include/mlir/IR BuiltinTypeInterfaces.td

[mlir][NFC] Improve `ShapedTypeInterface` documentation (#225282)

Document that each dimension size must be not larger than "signed int64
max".

Related discussion:
https://discourse.llvm.org/t/rfc-vector-should-vector-transfer-read-transfer-write-indices-be-treated-as-unsigned-non-negative/91869/6
DeltaFile
+6-5mlir/include/mlir/IR/BuiltinTypeInterfaces.td
+6-51 files

LLVM/project febece3mlir/lib/Dialect/MemRef/IR MemRefOps.cpp, mlir/test/Dialect/MemRef invalid.mlir

[mlir][memref] Reject empty collapse_shape and expand_shape reassociation groups (#225348)

`memref.collapse_shape` and `memref.expand_shape` both accept an empty
reassociation group, which is not a valid reassociation: every group
must be a
non-empty, contiguous segment of dimensions.

* `memref.collapse_shape` with an empty group aborts the compiler for a
  non-identity source layout. `CollapseShapeOp::verify` forwards the
reassociation to `computeCollapsedLayoutMap`, which calls
`ArrayRef::back()`
  on each group and asserts on the empty one:

      mlir-opt: llvm/include/llvm/ADT/ArrayRef.h:151:
      const T& llvm::ArrayRef<T>::back() const [with T = long int]:
      Assertion `!empty()' failed.

  With an identity source layout the op is instead silently accepted.


    [18 lines not shown]
DeltaFile
+31-0mlir/test/Dialect/MemRef/invalid.mlir
+17-0mlir/lib/Dialect/MemRef/IR/MemRefOps.cpp
+48-02 files

LLVM/project 82ea1d2llvm/test/CodeGen/X86 no-split-size.ll 2008-04-16-ReMatBug.ll, llvm/test/CodeGen/X86/AMX amx-spill-merge.ll

[RegAlloc] [X86] Enable callee saved register optimization for x86 (#220090)

Enable callee saved register optimization implemented in
RAGreedy::tryAssignCSRFirstTime() for x86. It can replace save/restore
instructions in prologue/epilogue with register spill/reload in cold
blocks or register splits.

Spec cpu 2006 int result with fdo on skylake.
```
regalloc-csr-cost-scale                                 0     30

400.perlbench                                          42.0  42.7   
401.bzip2                                              25.5  26.3   
403.gcc                                                42.1  41.4   
429.mcf                                                45.0  44.4   
456.hmmer                                              38.2  38.2   
458.sjeng                                              32.3  32.0   
462.libquantum                                         68.0  68.9   
471.omnetpp                                            26.9  27.3   

    [5 lines not shown]
DeltaFile
+68-68llvm/test/CodeGen/X86/fptoui-sat-scalar.ll
+61-72llvm/test/CodeGen/X86/speculative-load-hardening.ll
+48-42llvm/test/CodeGen/X86/fptosi-sat-scalar.ll
+39-31llvm/test/CodeGen/X86/2008-04-16-ReMatBug.ll
+29-38llvm/test/CodeGen/X86/no-split-size.ll
+34-32llvm/test/CodeGen/X86/AMX/amx-spill-merge.ll
+279-28322 files not shown
+512-51928 files

LLVM/project 71122e7llvm/lib/CodeGen/SelectionDAG SelectionDAGDumper.cpp

[SelectionDAG] Add ISD::ARITH_FENCE to SelectionDAGDumper. (#225485)

We seem to have no consistency on CamelCase or snake_case in node
naming. I've gone with CamelCase to match the nearby nodes, but happy to
change.
DeltaFile
+1-0llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
+1-01 files

LLVM/project 838c705clang/docs ReleaseNotes.md, clang/lib/AST ExprConstant.cpp

[clang] Return early if a value dependent recovery init appeared in constant evaluation context in legacy constant evaluator (#225027)

A recovery default member initializer can be value-dependent even when
the expression referring to the variable is not. Clang should return
early to avoid crash.

This fix the issue found in
https://github.com/llvm/llvm-project/issues/185874#issuecomment-4058045596.

---------

Signed-off-by: yronglin <yronglin777 at gmail.com>
DeltaFile
+25-2clang/test/SemaCXX/recovery-expr-type.cpp
+15-7clang/lib/AST/ExprConstant.cpp
+3-0clang/docs/ReleaseNotes.md
+43-93 files

Illumos/gate 444f2eausr/src/test/header-tests/cfg c-symbols-env.cfg, usr/src/test/header-tests/cfg/c-symbols wchar_h.cfg

18447 header-tests ALL environment omits XPG3 and XPG4
Reviewed by: Robert Mustacchi <rm at fingolfin.org>
Reviewed by: Toomas Soome <tsoome at me.com>
Approved by: Dan McDonald <danmcd at oxidecomputer.com>
DeltaFile
+5-1usr/src/test/header-tests/cfg/c-symbols-env.cfg
+3-1usr/src/test/header-tests/cfg/c-symbols/wchar_h.cfg
+8-22 files

Illumos/gate ace296ausr/src/test/header-tests/cfg/c-symbols sys_timeb_h.cfg

18392 Fill in header-tests sys_timeb.h config
Reviewed by: Robert Mustacchi <rm at fingolfin.org>
Reviewed by: Toomas Soome <tsoome at me.com>
Approved by: Dan McDonald <danmcd at oxidecomputer.com>
DeltaFile
+10-4usr/src/test/header-tests/cfg/c-symbols/sys_timeb_h.cfg
+10-41 files

Illumos/gate 1fbbc3cusr/src/test/header-tests/cfg/c-symbols strings_h.cfg

18389 Fill in header-tests strings.h config
Reviewed by: Robert Mustacchi <rm at fingolfin.org>
Reviewed by: Toomas Soome <tsoome at me.com>
Approved by: Dan McDonald <danmcd at oxidecomputer.com>
DeltaFile
+36-4usr/src/test/header-tests/cfg/c-symbols/strings_h.cfg
+36-41 files

Illumos/gate 76e1647usr/src/test/header-tests/cfg c-symbols-env.cfg

18445 header test missing SUSv5 in some environments
Reviewed by: Robert Mustacchi <rm at fingolfin.org>
Reviewed by: Toomas Soome <tsoome at me.com>
Approved by: Dan McDonald <danmcd at oxidecomputer.com>
DeltaFile
+1-1usr/src/test/header-tests/cfg/c-symbols-env.cfg
+1-11 files

LLVM/project a3cba3cbolt/lib/Core DebugNames.cpp

Close a loose end for synthesized debug (anonymous namespace) strings that happen to be already in the main CU debug_str section.
DeltaFile
+4-7bolt/lib/Core/DebugNames.cpp
+4-71 files

LLVM/project c2b3813orc-rt/include/orc-rt/support bit.h

[orc-rt] Simplify bit.h countl_zero and bit_width (#225547)

The old countl_zero algorithm wasn't recognized / optimized by clang on
arm64 or x86-64. Switch to a simpler loop that clang recognizes and
rewrite bit_width in terms of countl_zero. NFCI.
DeltaFile
+8-19orc-rt/include/orc-rt/support/bit.h
+8-191 files

LLVM/project 1adcce1clang/lib/Driver/ToolChains CommonArgs.cpp, clang/test/Driver sanitize-trap-loop.c

[Driver] Link ubsan_loop_detect with --whole-archive (#225498)

`addSanitizerRuntimes` places sanitizer archives before user object
files on the linker command line.

Because `ubsan_loop_detect` was in `NonWholeStaticRuntimes` without `-u`
symbols, single-pass linkers like GNU `ld.bfd` discarded
`libclang_rt.ubsan_loop_detect.a` before seeing references to
`__ubsan_install_trap_loop_detection` or `__ubsan_is_trap_loop`. Move
`ubsan_loop_detect` to `StaticRuntimes` so it is linked with
`--whole-archive`.
DeltaFile
+1-1clang/test/Driver/sanitize-trap-loop.c
+1-1clang/lib/Driver/ToolChains/CommonArgs.cpp
+2-22 files

FreeBSD/ports 5ee9fc7devel/oci-cli Makefile distinfo

devel/oci-cli: Update 3.93.0 => 3.94.0

Changelog:
https://github.com/oracle/oci-cli/releases/tag/v3.94.0

PR:             298757
Sponsored by:   UNIS Labs (vvd, commit patch)
DeltaFile
+3-3devel/oci-cli/distinfo
+2-2devel/oci-cli/Makefile
+5-52 files

FreeBSD/ports 4801d1fdevel/py-oci Makefile distinfo

devel/py-oci: Update 2.186.0 => 2.187.0

Changelog:
https://github.com/oracle/oci-python-sdk/releases/tag/v2.187.0

PR:             298757
Sponsored by:   UNIS Labs (vvd, commit patch)
DeltaFile
+3-3devel/py-oci/distinfo
+1-1devel/py-oci/Makefile
+4-42 files

LLVM/project e02ef74llvm/lib/Target/RISCV RISCVISelLowering.cpp

fixup! Typo
DeltaFile
+1-1llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+1-11 files

LLVM/project 429bc4eclang/lib/CIR/CodeGen CIRGenCleanup.cpp CIRGenExprScalar.cpp, clang/test/CIR/CodeGen cleanup-conditional.cpp dtors.cpp

[CIR] Use cleanup active flag with logical operators (#225554)

When temporary expressions are created within a logical binary
operation, we need to use a "cleanup active" flag to guard any cleanups
that are created in the right-hand side of the expression because the
expression may short-circuit and not evaluate the RHS. Failure to do so
had been leading to destructors being called for objects that had never
been constructed.

This fix introduces a regression in destructor call ordering when both
sides of a logical operation create temporaries that require cleanup.
This is a known ordering bug that preceeded this PR but was incidentally
avoided by the previous incorrect handling. The orderig bug will be
fixed in a follow-up change.

Assisted-by: Cursor / various models
DeltaFile
+107-105clang/test/CIR/CodeGen/dtors.cpp
+86-0clang/test/CIR/CodeGen/cleanup-conditional.cpp
+8-2clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
+8-0clang/lib/CIR/CodeGen/CIRGenCleanup.cpp
+209-1074 files

LLVM/project 0ff5abdclang/lib/CIR/Lowering/DirectToLLVM LowerToLLVM.cpp, clang/test/CIR/Lowering not.cir

[CIR] Fix 'cir.not' lowering behavior for >64 bit size (#225541)

We were only inverting the lower 64 bits because we used the
int64_t/uint64_t overload, which only filled in 64 bits. This patch
replaces that with a 'getAllOnes' of the right size.
DeltaFile
+33-0clang/test/CIR/Lowering/not.cir
+3-1clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
+36-12 files

LLVM/project 4c320dcclang/lib/CIR/Lowering/DirectToLLVM LowerToLLVM.cpp, clang/test/CIR/CodeGen nobuiltin-replaceable-allocation.cpp

[CIR] Lower nobuiltin attribute (#225545)

This causes a problem in tests for global allocation functions, but we
are not currently lowering the 'nobuiltin' attribute to LLVM-IR. This
patch adds the lowering.
DeltaFile
+25-0clang/test/CIR/CodeGen/nobuiltin-replaceable-allocation.cpp
+3-1clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
+28-12 files

LLVM/project c0be35fclang/lib/CIR/CodeGen CIRGenFunction.cpp CIRGenExpr.cpp, clang/test/CIR/CodeGen lambda-explicit-obj.cpp

[CIR] Fix lambda explicit object parameters (#225518)

We seem to have diverged significantly from classic compiler here,
likely because the incubator missed these changes. The result was the
exmaple given in the test would crash because the 'this' argument wasn't
set right.

This patch copy/pastes/lightly modifies classic codegen to get these
lambdas done correctly.
DeltaFile
+92-0clang/test/CIR/CodeGen/lambda-explicit-obj.cpp
+31-7clang/lib/CIR/CodeGen/CIRGenExpr.cpp
+11-14clang/lib/CIR/CodeGen/CIRGenFunction.cpp
+134-213 files

LLVM/project 2382abcclang/lib/CIR/Dialect/Transforms LoweringPrepare.cpp, clang/lib/CIR/Lowering LoweringHelpers.cpp

[CIR] Implement lowering for BitInt that needs to be an array (#225470)

On bitint types that are not powers of 2, we have to represent them as
an array. This patch modifies 'convertTypeForMemory' to do that.
However, that ends up causing a couple of problems, that this also ends
up fixing:

First: constant init needs to also lower to this type/get that correct,
  so this introduces 'getBitIntStorageAttr' to manage that

Second: The 'copy' op lowering was getting its layout from the lowered
type, which is no longer correct. Since this is suposed to be the same
as what we get from CIR, this is jsut switched to use that instead.

Third: this ran into an issue with cir.copy in LoweringPrepare where we
didn't properly copy the alignment over. The result was our copy
operation didn't get alignment correct. This patch fixes that too.

Fourth: Load/Store/VecMaskedLoad all had to change how they got the type

    [10 lines not shown]
DeltaFile
+145-0clang/test/CIR/CodeGen/bitint-wide.c
+0-65clang/test/CIR/CodeGen/bitint-split-storage-nyi.c
+45-4clang/lib/CIR/Lowering/LoweringHelpers.cpp
+27-20clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
+28-0clang/test/CIR/CodeGen/global-const-alignment.cpp
+13-3clang/lib/CIR/Dialect/Transforms/LoweringPrepare.cpp
+258-926 files not shown
+280-10112 files

NetBSD/pkgsrc VZVWsIVlang/ocaml ocaml.mk

   lang/ocam/ocaml.mk: Limit findlib bl3 to build phase

   This is used to find libraries; it's more or less pkg-config for
   ocaml.  There's no logical basis for it to be used at runtime by any
   ocaml package that uses it to build.
VersionDeltaFile
1.5+3-2lang/ocaml/ocaml.mk
+3-21 files

HardenedBSD/src 9bf66edlib/libbsdconf bsdconf.3 bsdconf_stmt.c, share/misc bsd-family-tree

Merge remote-tracking branch 'rad/hardened/current/master' into hardened/current/cross-dso-cfi
DeltaFile
+39-420lib/libbsdconf/bsdconf.c
+133-0lib/libbsdconf/bsdconf_stmt.c
+44-18lib/libbsdconf/bsdconf.3
+23-20share/misc/bsd-family-tree
+23-0usr.sbin/sysconf/tests/sysconf_test.sh
+0-16usr.sbin/sysconf/sysconf_scan.c
+262-47415 files not shown
+315-50421 files

HardenedBSD/src ddd28e3lib/libbsdconf bsdconf.3 bsdconf_stmt.c, share/misc bsd-family-tree

Merge remote-tracking branch 'rad/hardened/current/master' into hardened/current/pledge
DeltaFile
+39-420lib/libbsdconf/bsdconf.c
+133-0lib/libbsdconf/bsdconf_stmt.c
+44-18lib/libbsdconf/bsdconf.3
+23-20share/misc/bsd-family-tree
+23-0usr.sbin/sysconf/tests/sysconf_test.sh
+0-16usr.sbin/sysconf/sysconf_scan.c
+262-47415 files not shown
+315-50421 files

HardenedBSD/src bca3c76lib/libbsdconf bsdconf.3 bsdconf_stmt.c, share/misc bsd-family-tree

Merge branch 'freebsd/current/main' into hardened/current/master
DeltaFile
+39-420lib/libbsdconf/bsdconf.c
+133-0lib/libbsdconf/bsdconf_stmt.c
+44-18lib/libbsdconf/bsdconf.3
+23-20share/misc/bsd-family-tree
+23-0usr.sbin/sysconf/tests/sysconf_test.sh
+0-16usr.sbin/sysconf/sysconf_scan.c
+262-47415 files not shown
+315-50421 files

HardenedBSD/ports a8e33cadeskutils/qmd/files package-lock-better-sqlite3.json package-lock.json, misc/github-copilot-cli-legacy Makefile

Merge branch 'freebsd/main' into hardenedbsd/main
DeltaFile
+227-1,584deskutils/qmd/files/package-lock.json
+1,314-0sysutils/beats95/files/patch-go-sysinfo
+0-564misc/github-copilot-cli-legacy/files/package-lock-sharp.json
+0-455misc/github-copilot-cli-legacy/files/package-lock-keytar.json
+11-442deskutils/qmd/files/package-lock-better-sqlite3.json
+0-241misc/github-copilot-cli-legacy/Makefile
+1,552-3,286223 files not shown
+4,581-4,700229 files