[libcxx-commits] [clang] [libcxxabi] [clang][ItaniumMangle] Mangle friend function templates with a constr… (PR #110247)

[LLVM Continuous Integration via libcxx-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ve-ninja` running on `hpce-ve-main` while building `clang,libcxxabi` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/12/builds/6828

<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/ve-linux.py ...' (failure)
...
[293/299] Linking CXX executable tools/clang/unittests/Driver/ClangDriverTests
[294/299] Linking CXX executable tools/clang/unittests/CodeGen/ClangCodeGenTests
[295/299] Linking CXX executable tools/clang/unittests/Tooling/ToolingTests
[296/299] Linking CXX executable tools/clang/unittests/Frontend/FrontendTests
[297/299] Linking CXX executable tools/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[298/299] Linking CXX executable tools/clang/unittests/Interpreter/ClangReplInterpreterTests
[298/299] Running the Clang regression tests
-- Testing: 21100 tests, 48 workers --
llvm-lit: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using clang: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang
Testing:  0.. 10.. 20.. 30.. 
FAIL: Clang :: CodeGenCXX/mangle-concept.cpp (8704 of 21100)
******************** TEST 'Clang :: CodeGenCXX/mangle-concept.cpp' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 1: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu -o - /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp -fclang-abi-compat=latest | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu -o - /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp -fclang-abi-compat=latest
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
error: 'expected-error' diagnostics seen but not expected: 
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 39: redefinition of 'h'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 38: default template argument not permitted on a friend template
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 45: redefinition of 'j'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 44: default template argument not permitted on a friend template
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 51: redefinition of 'l'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 50: default template argument not permitted on a friend template
error: 'expected-note' diagnostics seen but not expected: 
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 55: in instantiation of template class 'test2::A<bool>' requested here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 39: previous definition is here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 45: previous definition is here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 51: previous definition is here
10 errors generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
********************
Failed Tests (1):
  Clang :: CodeGenCXX/mangle-concept.cpp


Testing Time: 51.05s

Total Discovered Tests: 45230
  Skipped          :    10 (0.02%)
  Unsupported      :  3778 (8.35%)
Step 8 (check-llvm) failure: check-llvm (failure)
...
[293/299] Linking CXX executable tools/clang/unittests/Driver/ClangDriverTests
[294/299] Linking CXX executable tools/clang/unittests/CodeGen/ClangCodeGenTests
[295/299] Linking CXX executable tools/clang/unittests/Tooling/ToolingTests
[296/299] Linking CXX executable tools/clang/unittests/Frontend/FrontendTests
[297/299] Linking CXX executable tools/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[298/299] Linking CXX executable tools/clang/unittests/Interpreter/ClangReplInterpreterTests
[298/299] Running the Clang regression tests
-- Testing: 21100 tests, 48 workers --
llvm-lit: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using clang: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang
Testing:  0.. 10.. 20.. 30.. 
FAIL: Clang :: CodeGenCXX/mangle-concept.cpp (8704 of 21100)
******************** TEST 'Clang :: CodeGenCXX/mangle-concept.cpp' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 1: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu -o - /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp -fclang-abi-compat=latest | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu -o - /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp -fclang-abi-compat=latest
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
error: 'expected-error' diagnostics seen but not expected: 
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 39: redefinition of 'h'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 38: default template argument not permitted on a friend template
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 45: redefinition of 'j'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 44: default template argument not permitted on a friend template
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 51: redefinition of 'l'
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 50: default template argument not permitted on a friend template
error: 'expected-note' diagnostics seen but not expected: 
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 55: in instantiation of template class 'test2::A<bool>' requested here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 39: previous definition is here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 45: previous definition is here
  File /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp Line 51: previous definition is here
10 errors generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
********************
Failed Tests (1):
  Clang :: CodeGenCXX/mangle-concept.cpp


Testing Time: 51.05s

Total Discovered Tests: 45230
  Skipped          :    10 (0.02%)
  Unsupported      :  3778 (8.35%)

```

</details>

https://github.com/llvm/llvm-project/pull/110247