[clang] [clang] Make SARIF better handle diagnostic about unknown argument (PR #233241)

Tue Oct 20 00:04:08 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `fuchsia-x86_64-linux` running on `fuchsia-debian-64-us-central1-b-1` while building `clang` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/11/builds/51622

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

```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/fuchsia-linux.py ...' (failure)
...
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/wasm-ld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/wasm-ld
-- Testing: 26529 tests, 60 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50
FAIL: Clang :: Driver/embed-bitcode.c (14614 of 26529)
******************** TEST 'Clang :: Driver/embed-bitcode.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -ccc-print-bindings -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -fembed-bitcode 2>&1 | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -ccc-print-bindings -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -fembed-bitcode
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# RUN: at line 5
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-CC
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-CC
# RUN: at line 12
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode=bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-BITCODE
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode=bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-BITCODE
# RUN: at line 19
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -target powerpc-ibm-aix -save-temps -fembed-bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-SAVE-TEMP
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -target powerpc-ibm-aix -save-temps -fembed-bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-SAVE-TEMP
# RUN: at line 29
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -flto -fembed-bitcode 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-LTO
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -flto -fembed-bitcode '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-LTO
# .---command stderr------------
# | /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c:35:19: error: CHECK-LTO-NOT: excluded string found in input
# | // CHECK-LTO-NOT: -cc1
# |                   ^
# | <stdin>:6:627: note: found here
# |  "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/llvm" "clang" "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-emit-llvm-bc" "-flto=full" "-flto-unit" "-disable-free" "-clear-ast-before-backend" "-disable-llvm-verifier" "-discard-value-names" "-main-file-name" "embed-bitcode.c" "-mrelocation-model" "pic" "-pic-level" "2" "-pic-is-pie" "-mframe-pointer=all" "-fmath-errno" "-ffp-contract=on" "-fno-rounding-math" "-mconstructor-aliases" "-funwind-tables=2" "-target-cpu" "x86-64" "-tune-cpu" "generic" "-debugger-tuning=gdb" "-fdebug-compilation-dir=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/tools/clang/test/Driver" "-fcoverage-compilation-dir=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/tools/clang/test/Driver" "-resource-dir" "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/lib/clang/24" "-internal-isystem" "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/lib/clang/24/include" "-internal-isystem" "/usr/local/include" "-internal-isystem" "/usr/lib/gcc/x86_64-linux-gnu/11/../../../../x86_64-linux-gnu/include" "-internal-externc-isystem" "/usr/include/x86_64-linux-gnu" "-internal-externc-isystem" "/include" "-internal-externc-isystem" "/usr/include" "-ferror-limit" "19" "-fgnuc-version=4.2.1" "-fskip-odr-check-in-gmf" "-faddrsig" "-fdwarf2-cfi-asm" "-o" "embed-bitcode.o" "-x" "c" "/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c"
# |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ^~~~
# | 
# | Input file: <stdin>
# | Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# | 
# | -dump-input=help explains the following input dump.
# | 
Step 7 (check) failure: check (failure)
...
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/wasm-ld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using lld-link: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/lld-link
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using ld64.lld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/ld64.lld
llvm-lit: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/llvm/utils/lit/lit/llvm/config.py:572: note: using wasm-ld: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/wasm-ld
-- Testing: 26529 tests, 60 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50
FAIL: Clang :: Driver/embed-bitcode.c (14614 of 26529)
******************** TEST 'Clang :: Driver/embed-bitcode.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -ccc-print-bindings -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -fembed-bitcode 2>&1 | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -ccc-print-bindings -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -fembed-bitcode
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# RUN: at line 5
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-CC
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-CC
# RUN: at line 12
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode=bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-BITCODE
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -fembed-bitcode=bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-BITCODE
# RUN: at line 19
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -target powerpc-ibm-aix -save-temps -fembed-bitcode -fintegrated-as 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-SAVE-TEMP
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -c -target powerpc-ibm-aix -save-temps -fembed-bitcode -fintegrated-as '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-SAVE-TEMP
# RUN: at line 29
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -flto -fembed-bitcode 2>&1 -### | /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-LTO
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/clang -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -flto -fembed-bitcode '-###'
# executed command: /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/FileCheck /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c -check-prefix=CHECK-LTO
# .---command stderr------------
# | /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c:35:19: error: CHECK-LTO-NOT: excluded string found in input
# | // CHECK-LTO-NOT: -cc1
# |                   ^
# | <stdin>:6:627: note: found here
# |  "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/bin/llvm" "clang" "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-emit-llvm-bc" "-flto=full" "-flto-unit" "-disable-free" "-clear-ast-before-backend" "-disable-llvm-verifier" "-discard-value-names" "-main-file-name" "embed-bitcode.c" "-mrelocation-model" "pic" "-pic-level" "2" "-pic-is-pie" "-mframe-pointer=all" "-fmath-errno" "-ffp-contract=on" "-fno-rounding-math" "-mconstructor-aliases" "-funwind-tables=2" "-target-cpu" "x86-64" "-tune-cpu" "generic" "-debugger-tuning=gdb" "-fdebug-compilation-dir=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/tools/clang/test/Driver" "-fcoverage-compilation-dir=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/tools/clang/test/Driver" "-resource-dir" "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/lib/clang/24" "-internal-isystem" "/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-cc13zx__/lib/clang/24/include" "-internal-isystem" "/usr/local/include" "-internal-isystem" "/usr/lib/gcc/x86_64-linux-gnu/11/../../../../x86_64-linux-gnu/include" "-internal-externc-isystem" "/usr/include/x86_64-linux-gnu" "-internal-externc-isystem" "/include" "-internal-externc-isystem" "/usr/include" "-ferror-limit" "19" "-fgnuc-version=4.2.1" "-fskip-odr-check-in-gmf" "-faddrsig" "-fdwarf2-cfi-asm" "-o" "embed-bitcode.o" "-x" "c" "/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c"
# |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ^~~~
# | 
# | Input file: <stdin>
# | Check file: /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/clang/test/Driver/embed-bitcode.c
# | 
# | -dump-input=help explains the following input dump.
# | 

```

</details>

https://github.com/llvm/llvm-project/pull/233241