[clang] [C++20][Modules][Serialization] Add an additional test case for #120277. (PR #126349)

Sat Feb 8 22:45:16 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-aarch64-darwin` running on `doug-worker-5` while building `clang` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/190/builds/14342

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'Clang :: Driver/offload-Xarch.c' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang --target=x86_64-unknown-linux-gnu -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_nvptx64 -O3 -S -nogpulib -nogpuinc -### 2>&1 | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang --target=x86_64-unknown-linux-gnu -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_nvptx64 -O3 -S -nogpulib -nogpuinc -###
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 2: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_device -O3 -S -nogpulib -nogpuinc -### 2>&1 | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_device -O3 -S -nogpulib -nogpuinc -###
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 3: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x hip /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_amdgcn -O3 -S -nogpulib -nogpuinc -### 2>&1 | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x hip /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c -Xarch_amdgcn -O3 -S -nogpulib -nogpuinc -###
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 4: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=amdgcn-amd-amdhsa -nogpulib -nogpuinc    -Xarch_amdgcn -march=gfx90a -Xarch_amdgcn -O3 -S -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c 2>&1  | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=amdgcn-amd-amdhsa -nogpulib -nogpuinc -Xarch_amdgcn -march=gfx90a -Xarch_amdgcn -O3 -S -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 7: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda -nogpulib -nogpuinc    -Xarch_nvptx64 -march=sm_52 -Xarch_nvptx64 -O3 -S -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c 2>&1  | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda -nogpulib -nogpuinc -Xarch_nvptx64 -march=sm_52 -Xarch_nvptx64 -O3 -S -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=O3ONCE /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 13: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda,amdgcn-amd-amdhsa -nogpulib    --target=x86_64-unknown-linux-gnu -Xopenmp-target=nvptx64-nvidia-cuda --offload-arch=sm_52,sm_60 -nogpuinc    -Xopenmp-target=amdgcn-amd-amdhsa --offload-arch=gfx90a,gfx1030 -ccc-print-bindings -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c 2>&1  | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=OPENMP /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda,amdgcn-amd-amdhsa -nogpulib --target=x86_64-unknown-linux-gnu -Xopenmp-target=nvptx64-nvidia-cuda --offload-arch=sm_52,sm_60 -nogpuinc -Xopenmp-target=amdgcn-amd-amdhsa --offload-arch=gfx90a,gfx1030 -ccc-print-bindings -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=OPENMP /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 29: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c --offload-arch=sm_52,sm_60 -Xarch_sm_52 -O3 -Xarch_sm_60 -O0    --target=x86_64-unknown-linux-gnu -Xarch_host -O3 -S -nogpulib -nogpuinc -### 2>&1  | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=CUDA /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -x cuda /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c --offload-arch=sm_52,sm_60 -Xarch_sm_52 -O3 -Xarch_sm_60 -O0 --target=x86_64-unknown-linux-gnu -Xarch_host -O3 -S -nogpulib -nogpuinc -###
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=CUDA /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
RUN: at line 37: /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp --offload-arch=gfx90a -nogpulib -nogpuinc    --target=x86_64-unknown-linux-gnu -Xarch_amdgcn -Wl,-lfoo -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c 2>&1  | /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=LIBS /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang -fopenmp=libomp --offload-arch=gfx90a -nogpulib -nogpuinc --target=x86_64-unknown-linux-gnu -Xarch_amdgcn -Wl,-lfoo -### /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
+ /Users/buildbot/buildbot-root/aarch64-darwin/build/bin/FileCheck -check-prefix=LIBS /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c
[1m/Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c:43:10: [0m[0;1;31merror: [0m[1mLIBS: expected string not found in input
[0m// LIBS: "--device-linker=amdgcn-amd-amdhsa=-lfoo"
[0;1;32m         ^
[0m[1m<stdin>:1:1: [0m[0;1;30mnote: [0m[1mscanning from here
[0mclang version 21.0.0git (https://github.com/llvm/llvm-project.git 59cbe2ff591d91e8375cfb4f4ba59dff49a82f4f)
[0;1;32m^
[0m[1m<stdin>:6:1365: [0m[0;1;30mnote: [0m[1mpossible intended match here
[0m "/Users/buildbot/buildbot-root/aarch64-darwin/build/bin/clang-21" "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-emit-llvm-bc" "-emit-llvm-uselists" "-dumpdir" "a-" "-disable-free" "-clear-ast-before-backend" "-main-file-name" "offload-Xarch.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=/Users/buildbot/buildbot-root/aarch64-darwin/build/tools/clang/test/Driver" "-target-linker-version" "1053.12" "-fcoverage-compilation-dir=/Users/buildbot/buildbot-root/aarch64-darwin/build/tools/clang/test/Driver" "-resource-dir" "/Users/buildbot/buildbot-root/aarch64-darwin/build/lib/clang/21" "-internal-isystem" "/Users/buildbot/buildbot-root/aarch64-darwin/build/lib/clang/21/include" "-internal-isystem" "/usr/local/include" "-internal-externc-isystem" "/include" "-internal-externc-isystem" "/usr/include" "-internal-isystem" "/Users/buildbot/buildbot-root/aarch64-darwin/build/lib/clang/21/include" "-internal-isystem" "/usr/local/include" "-internal-externc-isystem" "/include" "-internal-externc-isystem" "/usr/include" "-ferror-limit" "19" "-fopenmp" "-nogpulib" "-fgnuc-version=4.2.1" "-fskip-odr-check-in-gmf" "-disable-llvm-passes" "-fopenmp-targets=amdgcn-amd-amdhsa" "-faddrsig" "-D__GCC_HAVE_DWARF2_CFI_ASM=1" "-o" "/var/folders/qg/gb2hp8jx3g969f6phcsc_d_80000gt/T/lit-tmp-otas9i6n/offload-Xarch-86380b.bc" "-x" "c" "/Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c"
[0;1;32m                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ^
[0m
Input file: <stdin>
Check file: /Users/buildbot/buildbot-root/aarch64-darwin/llvm-project/clang/test/Driver/offload-Xarch.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
[1m[0m[0;1;30m            1: [0m[1m[0;1;46mclang version 21.0.0git (https://github.com/llvm/llvm-project.git 59cbe2ff591d91e8375cfb4f4ba59dff49a82f4f) [0m
[0;1;31mcheck:43'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
[0m[0;1;30m            2: [0m[1m[0;1;46mTarget: x86_64-unknown-linux-gnu [0m
[0;1;31mcheck:43'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...

```

</details>

https://github.com/llvm/llvm-project/pull/126349