[clang] [clang] Specialize invocation path visitation to the cow (PR #205686)

LLVM Continuous Integration via cfe-commits cfe-commits at lists.llvm.org
Fri Jun 26 13:51:35 PDT 2026 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-msan` running on `sanitizer-buildbot10` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/94/builds/18803

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
-- Testing: 99814 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/obj2yaml/DXContainer/PRIVPart.yaml (88742 of 99814)
******************** TEST 'LLVM :: tools/obj2yaml/DXContainer/PRIVPart.yaml' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 5
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# .---command stdout------------
# | DXBC                   U      (   H   DXIL   `     DXIL          PRIV   ޭ��B
# `-----------------------------
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml
# .---command stdout------------
# | Error reading file: <stdin>: The file was not recognized as a valid object file
# `-----------------------------
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
95.43s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
94.96s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
75.29s: LLVM :: tools/llvm-exegesis/AArch64/all-opcodes.test
73.05s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
69.81s: Clang :: ClangScanDeps/build-session-validation-outdated-module.c
69.42s: Clang :: CodeGen/X86/sse2-builtins.c
62.28s: Clang :: CodeGen/X86/avx-builtins.c
52.68s: Clang :: CodeGen/X86/xop-builtins.c
52.53s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
Step 11 (stage2/msan check) failure: stage2/msan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
-- Testing: 99814 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/obj2yaml/DXContainer/PRIVPart.yaml (88742 of 99814)
******************** TEST 'LLVM :: tools/obj2yaml/DXContainer/PRIVPart.yaml' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 5
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# .---command stdout------------
# | DXBC                   U      (   H   DXIL   `     DXIL          PRIV   ޭ��B
# `-----------------------------
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml
# .---command stdout------------
# | Error reading file: <stdin>: The file was not recognized as a valid object file
# `-----------------------------
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/yaml2obj /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/obj2yaml
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/obj2yaml/DXContainer/PRIVPart.yaml
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
95.43s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
94.96s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
75.29s: LLVM :: tools/llvm-exegesis/AArch64/all-opcodes.test
73.05s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
69.81s: Clang :: ClangScanDeps/build-session-validation-outdated-module.c
69.42s: Clang :: CodeGen/X86/sse2-builtins.c
62.28s: Clang :: CodeGen/X86/avx-builtins.c
52.68s: Clang :: CodeGen/X86/xop-builtins.c
52.53s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c

```

</details>

https://github.com/llvm/llvm-project/pull/205686

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