ci(macos): the shipped arm64 binary was compiled by an LLVM whose loop vectorizer ignores the no-alias promise, at a minimum macOS nothing pinned by joyful-ii-V-I · Pull Request #246 · redhat-et/ripwire

joyful-ii-V-I · 2026-09-16T17:47:42Z

The defect

The macos-arm64 release asset and every macOS CI leg were built with Xcode 16.2 on macos-14. That Xcode's AppleClang 16 is LLVM 17. LLVM 17's loop vectorizer never reads __builtin_assume_separate_storage: llvm/llvm-project#64666, fixed by #76770 in LLVM 18. CI showed this on PR #200, where noaliascheck arm 6 stayed at plain on macos-14. So a VERIFY_NO_ALIAS_BUF promise in the shipped macOS binary removed scalar reloads, but every vectorized loop kept its runtime overlap check and its scalar fallback. The ASSUME survey counted 27 loops that become check-free on Apple clang 21. None of them could become check-free in the binary users download.

Two further problems:

No deployment target on the arm64 leg. ci(release): Intel macOS binaries end with 0.6.1; the installer says so instead of failing on a missing asset #240's report says the pin and the otool minos check only ever applied to the x64 leg. clang takes the lower of the runner's macOS and the SDK default. That gave 14.0 on macos-14, but a plain runner move would give 26.x and drop macOS 14 and 15 users without a word.
macos-14 is deprecated. [macOS] macOS 14 Sonoma retirement: GitHub Actions and ADO arm64 on November 2; ADO Intel on November 23 actions/runner-images#13518 schedules brownouts on eight October dates and retirement on 2026-11-02. On those dates every macOS job in both workflows fails.

The change

release.yml, macos-arm64:
- Runs on macos-26 with developer_dir Xcode 26.6.
- deployment_target: "14.0", exported as MACOSX_DEPLOYMENT_TARGET before the PGO build and read back off build/ripwire with otool after PGO staging and before Package. ci(release): Intel macOS binaries end with 0.6.1; the installer says so instead of failing on a missing asset #240 removed those two steps with the x64 leg; they come back for this leg.
- Both steps run on every macOS leg and fail loudly instead of skipping. A leg with no deployment_target fails at the export, and the read-back is an exact string compare, so a missing or doubled LC_BUILD_VERSION also fails.
- A new step records xcodebuild -version, c++ --version and the paths of clang++ and llvm-profdata. It fails if DEVELOPER_DIR is empty (an empty value would turn the "$DEVELOPER_DIR"/* prefix test into /*) or if either tool resolves outside it. Training, merge and optimize then use one LLVM, with no .profraw version skew.
ci.yml, TESTED == SHIPPED:
- The eight release gate shards and the asan macOS leg run on macos-26 with DEVELOPER_DIR Xcode 26.6 and MACOSX_DEPLOYMENT_TARGET 14.0.
- asan's ASAN_OPTIONS condition moved too; otherwise the macOS leg would have got detect_leaks=1.
- The job env's matrix.os == 'macos-26' && … || '' falls back to empty on any other label. So the build matrix's front-end step and the asan macOS configure now fail when DEVELOPER_DIR or MACOSX_DEPLOYMENT_TARGET is empty, or when CMakeCache.txt's CMAKE_OSX_DEPLOYMENT_TARGET is not the exported value.
- The Release/plain split, the four-shard layout and the plain-leg skiplist are unchanged.
Comments that described the current toolchain as Xcode 16.2 / macos-14 now say "through 0.6.1": CMakeLists.txt, cmake/PortableFlags.cmake, CONTRIBUTING.md, the header of test/portablebuildcheck.sh, and one optremarkscheck skip message. Comments that cite a historical CI run on macos-14 are left as they were.

Evidence for Xcode 26.6 on macos-26

The image. images/macos/macos-26-arm64-Readme.md at image 20260907.0351.1 lists Xcode 26.6 (default), build 17F113, and "Clang/LLVM 21.0.0". It also carries Xcode 26.0.1 through 26.5. toolset-26.json has "default": "26.6" with 26.6+17F113. macos-26 is the arm64 label; macos-14's image still lists Xcode 16.2 (16C5032a) as non-default, with 15.4 the default.
The same build is on the dev machine. /Applications/Xcode.app is 26.6 build 17F113, and xcrun clang++ --version reports Apple clang 21.0.0 (clang-2100.1.1.101). So every local measurement below ran on the exact compiler the runner image ships.
The loop vectorizer reads the hint with no extra flags. The probe is a d[i] += 3*s[i] loop over two uint32_t*, built with -O2 -mcpu=apple-m1 -mmacosx-version-min=14.0 and counted with objdump:

build without the promise with __builtin_assume_separate_storage

default 64 57

-mllvm -basic-aa-separate-storage=false 64 64

Under -mllvm -vectorize-memory-check-threshold=0, the plain loop reports AnalysisAliasing/CantReorderMemOps (it needs a runtime check) and the promised loop reports Passed/Vectorized.
test/noaliascheck.sh on this compiler: CONSUMED_DEFAULT (default: 0, =true: 0, =false: 1), LOOP_CONSUMED (axpyBuiltin 61 vs plain 65), and arm 6/8 control with the analysis off axpyBuiltin is 65. It printed ALL PASS. On the new macOS legs arm 6 becomes a hard assertion instead of a LOOP_NOT_CONSUMED WARN.

The minimum macOS: 14.0, read off v0.6.1

gh release download v0.6.1 --pattern 'ripwire-0.6.1-macos-arm64.tar.gz*' fetched the tarball (7,941,688 bytes) and shasum -c passed. The binary was read, never executed. otool -l on ripwire-0.6.1-macos-arm64/ripwire shows LC_BUILD_VERSION, platform 1, minos 14.0, sdk 15.2. README's "Prebuilt macOS floor" row already says macOS 14 or later.

<print> at that target with Xcode 26.6: xcrun --sdk macosx clang++ -std=c++23 -mmacosx-version-min=14.0 compiles and runs a TU that #errors without __cpp_lib_print and calls std::print/std::println. It reads minos 14.0 sdk 26.5. The control at -mmacosx-version-min=13.0 hits the #error, so the macro really is gated on the target.

Release leg, emulated locally on the same Xcode build

DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer (26.6, 17F113) and MACOSX_DEPLOYMENT_TARGET=14.0, then scripts/pgobuild.sh --cmake-extra -DCMAKE_BUILD_TYPE=Release. It finished rc=0 in 185 s: one .profraw was merged by xcrun --find llvm-profdata, which sits in the same XcodeDefault.xctoolchain/usr/bin as clang++. build_pgo/CMakeCache.txt shows CMAKE_OSX_DEPLOYMENT_TARGET=14.0, RIPWIRE_LTO=ON, RIPWIRE_PGO=use, RIPWIRE_CXX_HAS_BASIC_AA_SEPARATE_STORAGE=1 and RIPWIRE_LD64_HAS_BASIC_AA_SEPARATE_STORAGE=1.

The release post-steps, run on build_pgo/ripwire:

PGO determinism diff: identical.
ripwire 0.6.1 (Release, AppleClang 21.0.0.21000101, emit=std::print, …).
otool: minos 14.0, sdk 26.5.
Smoke xmllint --noout: clean.
Output byte-identical to the plain build/ripwire on test/fixture, on the repo map, and on --for="resolve references into the call graph".

The three new step scripts were extracted from release.yml and run with bash -e, each against good and bad inputs:

pin: writes MACOSX_DEPLOYMENT_TARGET=14.0 to $GITHUB_ENV. An empty deployment_target gives rc=1, naming the leg.
record: rc=0 with both tool paths under the Xcode. An empty DEVELOPER_DIR gives rc=1.
minos on build_pgo/ripwire: rc=0 at 14.0. It gives rc=1 against 15.0, against a missing binary (minos ''), and against 14.

Gate: test/portablebuildcheck.sh #2i (sixteen rows, text-level, any host)

The arm checks the following. The first seven are verdict rows about the release leg:

the release leg's exact runner, Xcode and quoted "14.0"
a MACOSX_DEPLOYMENT_TARGET export before the first configure that refuses an empty target
one deployment-target source: no -DCMAKE_OSX_DEPLOYMENT_TARGET, -mmacosx-version-min or second MACOSX_DEPLOYMENT_TARGET anywhere in the leg or in the build job's env and steps
the exact, fail-closed otool minos compare between PGO staging and Package
the toolchain record step ahead of the first build: empty-DEVELOPER_DIR refusal, pwd -P, outside-prefix exit 1
DEVELOPER_DIR wired from matrix.developer_dir
every one of those steps runs on the leg: if: absent or runner.os == 'macOS', never matrix.deployment_target

In ci.yml it checks:

every macOS runner label, matrix.os == 'macos-*' condition, Xcode path and MACOSX_DEPLOYMENT_TARGET line equals the release's
the build/ and asan/ CMakeCache.txt pin guards both exist

Three built-in controls must each be refused by exactly their own row: no minos step, ASAN_OPTIONS back on macos-14, and a step-level -DCMAKE_OSX_DEPLOYMENT_TARGET=15.0 on pgobuild. Each way a control can break is its own named FAIL.

Red on ci(release): Intel macOS binaries end with 0.6.1; the installer says so instead of failing on a missing asset #240's head 6fcae7bc (git archive + this gate): 14 FAIL, 2 PASS.
Green: 16 PASS (35 in the gate), under both an unset locale and LC_ALL=en_US.UTF-8.
Ad hoc mutations, each red on exactly one row:
- the export if: matrix.deployment_target
- the record step deleted, or moved after PGO
- the empty-target guard deleted
- minos neutered to = '99.0', or reverted to the regex grep
- a step env MACOSX_DEPLOYMENT_TARGET: "15.0"
- -mmacosx-version-min=15.0
- an inline MACOSX_DEPLOYMENT_TARGET=15.0 scripts/pgobuild.sh
- pwd -P removed
- the empty-DEVELOPER_DIR guard deleted
- either ci.yml cache guard deleted
- plus the earlier ones: unquoted 14.0, "15.0", Xcode 16.2, a CI shard on macos-15, a CI Xcode path

The first CI run's red, and the sort-locale sweep

Run 35130688947 (d7541a6) failed one row on both macos-26 shards: scroundtripcheck (B) cppqualfix: composed ids differ. The ids were right; the gate harness was the problem.

Cause: the gate sorted its expected list with /usr/bin/sort and cmp'd it with Python sorted(). macOS 26's sort, under the runner's en_US.UTF-8, collates case-insensitively (qual.cpp::a::… before qual.cpp::Box::…).
Reproduced with the unchanged gate: LC_ALL=C ALL PASS; LC_ALL=en_US.UTF-8 gives the CI row, 1,5d0 < qual.cpp::a::scopedTmpl ….

The same class, swept across every sort, comm, join, uniq and ls call in test/, test/lib/, scripts/ and bench/: 296 unpinned sites classified. 27 sites in 20 files compare an order with a different one: Python sorted(), a literal, a pinned hash, ripwire's byte-sorted output, or git status. All 27 now run under LC_ALL=C (7133a68 lists them).

Only scroundtripcheck fails today. The pre-fix columnarcheck and mcpforparitycheck pass in both locales, so those are latent.
Every fixed gate is ALL PASS under both LC_ALL=C and LC_ALL=en_US.UTF-8.

Gates run (local, Apple clang 21.0.0 = Xcode 26.6 17F113; plain build, `MACOSX_DEPLOYMENT_TARGET=14.0`)

The branch merged main at a55b118 (#240, #237, #239); none of those changed a file this PR touches. It was rebuilt --clean-first after the merge and relinked at every later commit: ripwire 0.6.1 (dev, AppleClang 21.0.0.21000101, emit=std::print, built_from=7b35b96fc), minos 14.0.

portablebuildcheck    rc=0 pass=35 fail=0  ALL PASS   (#2i: 16 rows; unset locale and en_US.UTF-8)
scroundtripcheck      rc=0 pass=24 fail=0  ALL PASS   (LC_ALL=C and LC_ALL=en_US.UTF-8)
releaseinstallcheck   rc=0 pass=55 fail=0  ALL PASS
versioncheck          rc=0 pass=12 fail=0  ALL PASS   (at the head commit)
manifestcheck         rc=0 pass=16 fail=0
gateexitcheck         rc=0 pass=22 fail=0 skip=1 (arm E, ground truth not requested)  ALL PASS
headbinstagecheck     rc=0 pass=26 fail=0  ALL PASS   (parses ci.yml's staging step)
pargatescheck         rc=0 pass=64 fail=0  ALL PASS   (reads ci.yml's --budget-scale)
optremarkscheck       rc=0 pass=30 fail=0  ALL PASS
noaliascheck          rc=0 pass=38 fail=0  ALL PASS  CONSUMED_DEFAULT / LOOP_CONSUMED
qschemetripcheck      rc=0 pass=5  ALL PASS   (main's #237 pin, on the merged tree)
docdemotecheck        rc=0 pass=20  ALL PASS
deckcheck             rc=0  ALL PASS
readmedriftcheck      rc=0 pass=46  ALL PASS
commentcoherencecheck rc=0 pass=8   ALL PASS
ripwirepubliccheck    rc=0 pass=15  ALL PASS
gatecount_build.py --check  rc=0 (loop names 618; no gate added)
limits_build.py --check     rc=0
det diff test/fixture: identical; xmllint --noout: clean
--quality-delta=$(git merge-base origin/main HEAD)..HEAD   (a55b118e..HEAD)
                            regressions="3" minor="3" acked="2" gating="0"

actionlint, with shellcheck over every run: block, reports 0 errors on release.yml and ci.yml. main had 3 (property "cmake_extra" is not defined), left by #240, which removed the only leg that set cmake_extra but kept the two expressions that read it. Commit d7541a66 removes both; they evaluated to the empty string on every remaining leg, so the configure and pgobuild.sh commands each leg runs are unchanged.

Two quality-delta rows gated, both verbosity rows for the release guards: release.yml's build job (138 to 196 lines) and its jobs key (218 to 276). Both are acked through the binary (--ack-only=gating), and each ledger row was rewritten in place with its prior reason kept. Three minor verbosity rows on ci.yml's job keys stay visible.

The full suite was not run locally. CI carries it, and the macOS legs are what this PR changes.

Risks worth watching on the first CI run

Runner pool. macos-26 is the same free arm64 pool class as macos-14, and 0.6.1's macos-x64 release leg already ran there. The starvation trap still applies: nine macOS jobs per run, and a TIMEOUT on a macOS shard is read against xmlwellformed's runner-speed probe, not taken as a code signal.
Rosetta arms. strkerncheck probes Rosetta 2 for AVX2. On macos-14 it read rosetta_no_avx2 and ran the x86-64 baseline slice. macOS 26's Rosetta runs the x86-64-v3 slice, as the dev machine and the 0.6.1 x64 leg did, so the macOS CI legs now execute the v3 slice under translation. That path was never exercised on a macos-14 runner.
The release leg itself first runs at the next tag. Its PGO and minos steps were emulated locally on the same Xcode build, above.

Pins moved: none.

🤖 Generated with Claude Code

…p vectorizer ignores the no-alias promise, at a minimum macOS nothing pinned The macos-arm64 release leg and every macOS CI leg built with Xcode 16.2 on macos-14. Its AppleClang 16 is LLVM 17, whose loop vectorizer never reads __builtin_assume_separate_storage (llvm/llvm-project#64666, fixed in LLVM 18 by #76770; CI showed noaliascheck arm 6 at plain on PR #200). A VERIFY_NO_ALIAS_BUF promise therefore kept every vectorized loop's runtime overlap check in the binary users download. The leg also never pinned a deployment target: clang took the runner's macOS, 14.0 on macos-14, and a runner move alone would have shipped 26.x. And macos-14 is deprecated, with October brownouts and retirement on 2026-11-02 (actions/runner-images#13518). The fix: - release.yml macos-arm64: macos-26 with Xcode 26.6 (17F113, Apple clang 21.0.0, the image default); deployment_target "14.0" is exported as MACOSX_DEPLOYMENT_TARGET before the PGO build and read back off build/ripwire with otool after PGO staging, before Package. A new step records xcodebuild, c++ and llvm-profdata and fails if llvm-profdata is not under DEVELOPER_DIR, so the profile is written, merged and consumed by one LLVM. - ci.yml: the eight gate shards and the asan macOS leg run macos-26, DEVELOPER_DIR Xcode 26.6 and MACOSX_DEPLOYMENT_TARGET 14.0 -- the toolchain the release ships. asan's ASAN_OPTIONS condition moved with them (left on macos-14 it hands the macOS leg detect_leaks=1). Plain/Release split, four shards and the plain skiplist unchanged. - Comments naming Xcode 16.2 / macos-14 as the current toolchain now say "through 0.6.1" (CMakeLists.txt, PortableFlags.cmake, CONTRIBUTING.md, portablebuildcheck.sh, one optremarkscheck skip message). Evidence, measured on the dev machine's Xcode 26.6 build 17F113 (the same build the macos-26 image lists): - Minimum macOS: v0.6.1's published ripwire-0.6.1-macos-arm64 (sha256 verified, read not executed): otool LC_BUILD_VERSION minos 14.0, sdk 15.2. - Loop vectorizer, no extra flag (-O2 -mcpu=apple-m1 -mmacosx-version-min=14.0, objdump): d[i] += 3*s[i] over two uint32_t* is 64 instructions plain, 57 with the builtin, 64 again with -mllvm -basic-aa-separate-storage=false. Under -vectorize-memory-check-threshold=0 the plain loop reports AnalysisAliasing/CantReorderMemOps and the promised one Passed/Vectorized. noaliascheck: CONSUMED_DEFAULT, LOOP_CONSUMED (axpyBuiltin 61 vs plain 65), ALL PASS. - <print> at 14.0: a TU that #errors without __cpp_lib_print compiles and runs at -mmacosx-version-min=14.0 (minos 14.0, sdk 26.5); the 13.0 control hits the #error. - Release emulation: scripts/pgobuild.sh --cmake-extra -DCMAKE_BUILD_TYPE=Release at MACOSX_DEPLOYMENT_TARGET=14.0, rc=0 in 185 s; PGO determinism diff identical, emit=std::print, minos 14.0, xmllint clean, output byte-identical to the plain build on test/fixture, the repo map and a --for query. Gate first: test/portablebuildcheck.sh #2i, twelve rows (text-level, any host) -- the leg's exact runner, Xcode and quoted "14.0"; the export before the first configure with no -D override; the otool step between staging and Package; DEVELOPER_DIR wiring; and ci.yml's macOS runner labels, matrix.os conditions, Xcode paths and deployment targets equal to the release's. Two controls mutate a copy (release.yml without the minos step; ci.yml's ASAN_OPTIONS back on macos-14), cmp it, and require a refusal by name. Red on 6fcae7b (gate added, workflows unchanged): 11 FAIL, 1 PASS. ALL PASS after (31 rows in the gate). Ten further ad hoc mutations each reddened their own row. Also green locally: releaseinstallcheck 55, versioncheck 12, manifestcheck 16, gateexitcheck 22 (skip=1, arm E), headbinstagecheck 26, pargatescheck 64, optremarkscheck 30, noaliascheck, docdemotecheck, deckcheck, readmedriftcheck, commentcoherencecheck, ripwirepubliccheck; gatecount_build --check and limits_build --check; det diff and xmllint on test/fixture. actionlint's three cmake_extra findings are pre-existing on 6fcae7b; this change adds none. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…t-target pin, its minos read-back and the toolchain record --quality-delta=6fcae7bc..35f2a1b gated on one row: verbosity of release.yml's `build` job, 138 -> 175 lines. The growth is the change itself: the MACOSX_DEPLOYMENT_TARGET export, the otool minos read-back and the Xcode/llvm-profdata record step, each with the rationale comment house style asks for. The first two are the steps the macos-x64 leg carried through 0.6.1. Acked through the binary with --ack-only=gating: exactly one +ack row, keyed to that finding. The four minor verbosity rows (ci.yml jobs/release/asan, release.yml jobs) stay unacked and visible. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…hanged Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…instead of failing it Review of 35f2a1b against the fail-loudly rule found four places where a missing pin degraded silently: - release.yml's export and minos steps ran `if: matrix.deployment_target`, so a macOS leg without the key skipped both and shipped at the runner's macOS. Both now run on every macOS leg; the export step FAILS on an empty deployment_target. - The minos read-back used `grep -E "minos 14.0"`, where the dot matches any byte. It is now an exact string compare of otool's minos against the pin, which also fails on a missing or doubled LC_BUILD_VERSION. - The toolchain record step matched llvm-profdata's path against "$DEVELOPER_DIR"/*, which an EMPTY DEVELOPER_DIR turns into "/*" -- any absolute path passed. An empty DEVELOPER_DIR now fails, and clang++ is held to the same prefix as llvm-profdata. xcrun failing to find either tool is a named error. - ci.yml's `matrix.os == 'macos-26' && ... || ''` falls back to an empty DEVELOPER_DIR and deployment target on any other label. The build matrix's front-end step and the asan macOS configure now fail when either is empty or CMakeCache.txt's CMAKE_OSX_DEPLOYMENT_TARGET is not the exported value. portablebuildcheck #2i accepts `runner.os == 'macOS'` as a firing condition and matches the exact-compare minos step. Its two controls now report each way they can fail by name: a mutation writer that crashed, a copy that was not written, a copy that did not change, a verdict that never finished, and a verdict whose FAILs are not exactly the one targeted row. Before, a crashed writer or verdict read as "was NOT refused". Each branch was exercised against a stub verdict: two FAILs, a crash, the wrong row, a missing copy, and the good case. Red on 6fcae7b (git archive + this gate): 11 FAIL, 1 PASS, unchanged. ALL PASS here. The minos step's `if:` set to Linux and the export step's `if:` set to Linux each redden their own row. actionlint (with shellcheck) reports only the three cmake_extra findings pre-existing on 6fcae7b. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…ail-loudly guards f3fd03c's guards grew release.yml's `build` job from the acked 175 lines to 192: the empty-pin refusal in the export step, the exact-compare minos read-back, and the clang++/llvm-profdata prefix loop. The growth passed the acked size, so --quality-delta=a55b118e..HEAD gated again on that one finding. Re-acked through the binary with --ack-only=gating. The ledger row for key a92c1b3a424113ab is rewritten in place (175 -> 192, with a new reason that keeps the prior one); no row is added or removed. The four minor verbosity rows on the ci.yml and release.yml job keys stay unacked and visible. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…efore the fail-loudly guards f3fd03c made the release record step refuse an empty DEVELOPER_DIR and hold clang++ as well as llvm-profdata to the pinned Xcode, and made every macOS leg fail, never skip, when its pin is missing. The entry said only that llvm-profdata was checked. It now says what the checks do. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

coderabbitai · 2026-09-16T17:47:58Z

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The pull request moves macOS CI and release legs to macos-26 with Xcode 26.6 and a 14.0 deployment target. It adds workflow checks for toolchain, CMake, and binary settings, expands portable-build validation, and updates related documentation.

Changes

macOS toolchain migration

Layer / File(s)	Summary
CI runner and cache validation `.github/workflows/ci.yml`	macOS release and ASAN legs use macos-26, Xcode 26.6, and `MACOSX_DEPLOYMENT_TARGET=14.0`. The workflows validate the deployment target in CMake cache files.
Release toolchain and binary validation `.github/workflows/release.yml`	The macOS arm64 release leg exports the deployment target, validates Xcode tools, removes `cmake_extra` passthroughs, and checks the packaged binary `minos` value.
Portable gate and documentation updates `test/portablebuildcheck.sh`, `.ripwire_quality_acks`, `CHANGELOG.md`, `CMakeLists.txt`, `CONTRIBUTING.md`, `cmake/PortableFlags.cmake`, `test/optremarkscheck.sh`	The portable-build gate validates the workflow contract and mutation controls. Related acknowledgments, changelog text, comments, and skip messages describe the updated toolchain.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Bug fix

Suggested reviewers: quaterniondrift

Merge Risk: 🔵 Low · up to d7541

A future conflicting CMake deployment-target option could pass the portability gate, weakening protection for the macOS 14 compatibility promise. Add step-level scanning and a mutation before merging.

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…g defines, so actionlint reported three errors on main #240 removed macos-x64, the only release leg that set cmake_extra. It kept the non-PGO configure's `${{ matrix.cmake_extra || '' }}` tail and the PGO step's conditional `${{ matrix.cmake_extra && format('--cmake-extra {0}', matrix.cmake_extra) || '' }}`. With no leg defining the key, actionlint reads both as undefined properties: `property "cmake_extra" is not defined`, three times, at release.yml's two command lines. Both expressions evaluated to the empty string on every remaining leg. Removing them leaves the commands the legs actually ran: `cmake -S . -B build -DCMAKE_BUILD_TYPE=Release` on linux-x64/linux-arm64 and `scripts/pgobuild.sh --cmake-extra -DCMAKE_BUILD_TYPE=Release` on macos-arm64. pgobuild.sh's own repeatable --cmake-extra option is untouched; a leg that needs extra configure flags can pass them there again. actionlint (with shellcheck over the run: blocks): release.yml 3 errors -> 0, ci.yml 0. portablebuildcheck and releaseinstallcheck ALL PASS. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

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In `@test/portablebuildcheck.sh`:
- Line 319: Update the deployment-target override check around the override
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and add a regression mutation covering a conflicting
-DCMAKE_OSX_DEPLOYMENT_TARGET configure option so check `#2i` detects it instead
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.github/workflows/ci.yml
.github/workflows/release.yml
.ripwire_quality_acks
CHANGELOG.md
CMakeLists.txt
CONTRIBUTING.md
cmake/PortableFlags.cmake
test/optremarkscheck.sh
test/portablebuildcheck.sh

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… locale, and 27 gate sites compared its order with byte order On #246's first run (35130688947, head d7541a6) scroundtripcheck (B) went red on both macos-26 shards: "cppqualfix: composed ids differ from the pre-change id= set". The ids were right. The gate sorted its expected list with /usr/bin/sort and cmp'd it against Python sorted(). macOS 26's sort (2.3-Apple) under the runner's en_US.UTF-8 collates case-insensitively, putting qual.cpp::a::twoSeg before qual.cpp::Box::get. macOS 14's sort and the Linux legs use byte order. The local tool shell has no LANG, so the gate passed here. Reproduced with the unchanged gate on the d7541a6 binary: LC_ALL=C ALL PASS, LC_ALL=en_US.UTF-8 FAIL "1,5d0 < qual.cpp::a::scopedTmpl < qual.cpp::a::twoSeg ...", the row CI printed. The same class, swept across every sort/comm/join/uniq/ls call in test/, test/lib/, scripts/ and bench/ (296 unpinned sites classified; SAFE means both sides use the same sort in the same run, a count, a membership test or display only). Every site that compares a collation order with something ordered differently now runs under LC_ALL=C, the house spelling (clieditcheck, gatecountcheck, kotlincheck): - vs Python sorted(): scroundtripcheck:93 (the red one), columnarcheck:60, grepanchorcheck:110, grepignorecheck:106,109 - comm over Python-sorted or LC_ALL=C-sorted input: mcpforparitycheck:121,124,268, prbudgetcheck:167 - vs a literal: candheadcheck:72,111, prcheck:44, reachcheck:67,74, elixirnamearitycheck:273, exercisescheck:46, ariseshimcheck:46, layerquerycheck:49, affectedcheck:79, cochangecliocheck:297, fieldaffinitycheck:133 - vs ripwire's byte-sorted ack writer: qualitysignalcheck:383 - a pick by position: showcasecapturecheck:352 (tail -1 chooses the capture the arms judge) - a pinned hash over sorted names: bench/representative_perfgate.sh:32 (hash unchanged in both locales) - comm over unsorted git status: shapingflagcheck:82,501 now LC_ALL=C sort, :502 LC_ALL=C comm 27 sites in 20 files. Only scroundtripcheck fails today. The other 26 pass under en_US.UTF-8 by luck of their current names (columnarcheck and mcpforparitycheck checked with the pre-fix copies: ALL PASS in both locales). Every fixed gate, run as its own script on the d7541a6 binary, is ALL PASS under both LC_ALL=C and LC_ALL=en_US.UTF-8. No gate row, pin or expected value changed. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…lent-skip `if:` through, and pinned none of the fail-loudly guards Independent review of d7541a6 (and CodeRabbit on the override): - F2: the override scan read only the matrix leg, so `--cmake-extra -DCMAKE_OSX_DEPLOYMENT_TARGET=15.0` on the pgobuild step passed #2i. The only thing left to catch it was the otool step, which runs at tag time. #2i now scans the leg AND the build job's env and steps for -DCMAKE_OSX_DEPLOYMENT_TARGET, -mmacosx-version-min, and any MACOSX_DEPLOYMENT_TARGET other than the export step's. A third control plants the step-level -D and must be refused by that row alone. - F3: #2i still counted `if: ${{ matrix.deployment_target }}` as a step that always runs. That is the silent skip f3fd03c removed. Only an absent `if:` or `runner.os == 'macOS'` counts now. - F4: none of the fail-loudly guards were pinned. #2i now asserts the export's empty-target refusal, the exact fail-closed minos compare, the toolchain record step ahead of the first build (empty DEVELOPER_DIR refusal, pwd -P, outside-prefix exit 1), and ci.yml's two CMakeCache.txt guards (build/ and asan/). - F5: the record step compared xcrun's paths with DEVELOPER_DIR as spelled. Both sides are now physical paths (`pwd -P`), so a symlinked Xcode neither passes nor fails by spelling. Run locally under bash -e: the real Xcode and a symlink to it rc=0; an empty, missing or CommandLineTools DEVELOPER_DIR rc=1; a shimmed xcrun answering /usr/bin/clang++ gives rc=1 "outside DEVELOPER_DIR". - F7: src/infra/charconvcompat.h and src/main.cpp said the fallback is proven by "the macos-14 CI leg". They now say the macOS CI legs build at 14.0, below the macOS 26 where libc++'s floating-point from_chars becomes available (comments only). #2i is 16 rows now: 13 verdicts and 3 controls, each control refused by exactly its own row. Thirteen ad hoc mutations each redden exactly one row: - export `if: matrix.deployment_target` - record step deleted, or moved after the PGO build - the empty-target guard deleted - the minos compare neutered to `= '99.0'`, or reverted to the regex grep - step env `MACOSX_DEPLOYMENT_TARGET: "15.0"` - `-mmacosx-version-min=15.0` on the configure - inline `MACOSX_DEPLOYMENT_TARGET=15.0 scripts/pgobuild.sh` - `pwd -P` removed - the empty-DEVELOPER_DIR guard deleted - either ci.yml cache guard deleted Red on 6fcae7b (git archive plus this gate): 14 FAIL, 2 PASS. portablebuildcheck ALL PASS (35). CHANGELOG: the entry now follows main's #240 entry under [Unreleased], counts the new rows, and records the sort-locale defect. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…obs key at 276 after the pwd -P guard 4f679ed's physical-path check grew release.yml's `build` job from the acked 192 lines to 196, and the `jobs` key that holds it from 218 to 276, past that ledger row's acked 216 lines. --quality-delta over a55b118..HEAD gated on both. Both are the release guards #2i pins. They were re-acked through the binary with --ack-only=gating, which rewrote rows a92c1b3a424113ab (192 -> 196) and e419c663ed6ad8b5 (216 -> 276) in place, keeping each prior reason; no row was added. The three minor verbosity rows on ci.yml's jobs, release and asan keys stay unacked and visible. Result: regressions=3, minor=3, acked=2, gating=0. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I · 2026-09-16T19:10:03Z

Independent review of d7541a6 → fixed in 7b35b96 (7133a68 gates sweep, 4f679ed #2i, 7b35b96 quality re-ack). main a55b118 is merged, in 5240364.

The scroundtripcheck (B) failure on macos-26 was the gate harness, not ripwire. Under a UTF-8 locale, macOS 26's /usr/bin/sort collates case-insensitively, and the gate compared its output with Python sorted(). The gate now uses LC_ALL=C sort. The same pattern was swept across test/: 27 sites in 20 files fixed, listed in 7133a68. Only this gate failed today; the other 26 were latent.
#2i now scans the release leg AND its steps for a deployment-target override (CodeRabbit's finding), with a control.
#2i no longer accepts if: ${{ matrix.deployment_target }} as always-run.
#2i now also asserts the fail-loudly guards exist, and the stale macos-14 comments are updated.

Verified OK in review:

The pin reaches both pgobuild configures.
minos covers the only Mach-O.
llvm-profdata comes from the same Xcode.
No macos-14 runs-on/conditions remain.
strkerncheck is green on macos-26.

…ween #240's and #241's Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I · 2026-09-16T19:42:47Z

Merged main in as b62d1853 so this merges clean after #241 and #247. The conflict was only in CHANGELOG.md; this lane's entry sits between #240's and #241's, a different spot from the other open PRs' entries. CI was 31/31 green on 7b35b96f and runs again on the merge.

… with tempfilesymlinkcheck (620) Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

test/regression.sh: the gate loop is the UNION (diagnoticecheck from main, regexguardcheck from this lane); docs/gatecount_build.py rewrote 620. CHANGELOG: this lane's entry stays directly under [Unreleased], main's entries kept after it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…loops test/regression.sh conflicted only inside the gate loop: #245 added diagnoticecheck and this lane adds crashsweepcheck. The loop is their sorted union, and docs/gatecount_build.py rewrote the published count to 620. CHANGELOG.md: this lane's entry moves to the top of [Unreleased], each PR's own insertion point, and now describes the review follow-ups (the ledger still streams; the cachefuzzcheck layout checks; Part 5). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…, where every open lane inserts Moved, unchanged in substance, to the slot after #246's Xcode 26.6 entry and before #241's cached-enum entry, so open branches stop re-conflicting on one insertion point; the diff against main is additions only (29, 0 deletions). One sentence corrected while moving it: the 12,381 Django figure is the edges= delta, (caller, callee) pairs, not a count of calls. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

CHANGELOG.md conflicted on the Unreleased insertion point: main's entries (redhat-et#246 Xcode 26.6, redhat-et#241 cached enum byte) are kept first and this lane's entry follows them. No other file conflicted; the gate-count and LIMITS generators still agree with the merged tree. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

… rest of 105666c; no conflicts (this lane touches three gates, pargates.py and skipclassifycheck, none moved on main)

…enerated, not merged docs/LIMITS.md conflicted on its generated counts (main added a cap while this branch added four); it is regenerated from the merged src/ by docs/limits_build.py, and --check agrees. CHANGELOG.md: this branch's entry sits at the top of [Unreleased], each PR's own insertion point. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…ling-invariance CHANGELOG.md: this lane's entry stays directly under [Unreleased], redhat-et#245's follows. test/regression.sh: the gate loop is the UNION (rootspellingcheck from this lane, diagnoticecheck from redhat-et#245), and docs/gatecount_build.py rewrote the count to 620. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…edhat-et#241, redhat-et#245, redhat-et#246) This lane is stacked on the qsnap producer-identity lane, whose one new commit since d8c225a is its own merge of origin/main. Two conflicts, both expected: test/regression.sh — the gate loop is the UNION: 620 each side, qbaselineproducercheck (here) and diagnoticecheck (main), 621 byte-sorted; docs/gatecount_build.py re-run to WRITE 621 into README.md, docs/EVALS.md and present/deck5_ripwire_build.js, then --check. CHANGELOG.md — both sides kept: this lane's entry stays beside the qsnap entry it extends, main's two follow. docs/limits_build.py --check matches the merged src/. The merge touched none of this lane's sources, the printf parity manifest or docs/COMMANDS.md; both are re-checked against a --clean-first rebuild of the merged tree. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

…gration/train-1 Train 1a, merge 2 of 2. lane/qbaseline-producer-identity (stacked on redhat-et#255) was not on origin at merge time and is not in this train. Conflicts and their resolutions: - src/quality.h, the kQSnapCacheScheme history: KEEP BOTH. redhat-et#253's v13 paragraph (root-spelling invariance, 12 -> 13), then redhat-et#255's v14 paragraph (producer identity), constant = 14 per the train assignment. Dropped redhat-et#255's "(14, not 13: ... same integration train)" line: v13 now sits directly above it. - test/qschemetripcheck.sh re-pin log: both entries, newest first (redhat-et#255's v14 above redhat-et#253's v13); redhat-et#255's entry now reads "13 -> 14". - test/qschemetrip.hash: NEITHER side (redhat-et#253 hashed its own manifest text, redhat-et#255 its own). Re-derived with UPDATE_GOLDEN=1 on this merged tree = fb28e2d1aeec6aedb21793989301af8751aef5e65074b2e1dfc7e345100a9d56; qschemetripcheck ALL PASS against it. - test/regression.sh gate loop: UNION = 622 (train side had rootspellingcheck + tempfilesymlinkcheck, redhat-et#255 had qsnapproducercheck). - README.md / docs/EVALS.md / present/deck5_ripwire_build.js gate-count sites (both sides stated a count): docs/gatecount_build.py re-run to WRITE 622; --check clean. docs/limits_build.py --check clean. Clean auto-merges: CHANGELOG.md (all Unreleased entries kept: redhat-et#245, Intel macOS, redhat-et#255, redhat-et#246, redhat-et#253, redhat-et#241, redhat-et#250), .github/pargates-shard-weights.json (all four new gates weighted), CMakeLists.txt, cmake/, src/sourceidentity.h. printf_parity.manifest is verified on the built binary by printffmtparitycheck in the next step. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

… gate loop is the union (620), this lane's CHANGELOG entry stays at the top Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I and others added 6 commits September 16, 2026 10:32

merge(main): a55b118 (#240, #237, #239) — no file this lane touches c…

5240364

…hanged Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I added this to the 0.6.2 milestone Sep 16, 2026

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Comment thread test/portablebuildcheck.sh Resolved

joyful-ii-V-I and others added 3 commits September 16, 2026 15:05

merge(main): take #241 and #247; this lane's CHANGELOG entry sits bet…

b62d185

…ween #240's and #241's Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I merged commit 31e788c into main Sep 16, 2026
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joyful-ii-V-I added a commit that referenced this pull request Sep 16, 2026

merge(main): take #245 and #246; the gate loop unions diagnoticecheck…

36b057f

… with tempfilesymlinkcheck (620) Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

joyful-ii-V-I mentioned this pull request Sep 16, 2026

fix: a cache blob, a file in the tree or an MCP preview could crash, hang or leak descriptors — six fixes, each red-first, plus static rules for their shapes #249

Merged

joyful-ii-V-I mentioned this pull request Sep 16, 2026

harden: git file-system-monitor policy, exclusive temp files, confined edit-plan reads #250

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ci(macos): the shipped arm64 binary was compiled by an LLVM whose loop vectorizer ignores the no-alias promise, at a minimum macOS nothing pinned - #246

ci(macos): the shipped arm64 binary was compiled by an LLVM whose loop vectorizer ignores the no-alias promise, at a minimum macOS nothing pinned#246
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The defect

The change

Evidence for Xcode 26.6 on macos-26

The minimum macOS: 14.0, read off v0.6.1

Release leg, emulated locally on the same Xcode build

Gate: test/portablebuildcheck.sh #2i (sixteen rows, text-level, any host)

The first CI run's red, and the sort-locale sweep

Gates run (local, Apple clang 21.0.0 = Xcode 26.6 17F113; plain build, MACOSX_DEPLOYMENT_TARGET=14.0)

Risks worth watching on the first CI run

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Gates run (local, Apple clang 21.0.0 = Xcode 26.6 17F113; plain build, `MACOSX_DEPLOYMENT_TARGET=14.0`)

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