[clang] [clang][bytecode] Use tailcalls via `[[clang::musttail]]` (PR #173756)

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Timm =?utf-8?q?Bäder?= <tbaeder at redhat.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/173756 at github.com>


github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ByteCode/Interp.cpp.o</summary>

```
FAILED: tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ByteCode/Interp.cpp.o
sccache /opt/llvm/bin/clang++ -DCLANG_EXPORTS -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST -I/home/gha/actions-runner/_work/llvm-project/llvm-project/clang/lib/AST -I/home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ByteCode/Interp.cpp.o -MF tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ByteCode/Interp.cpp.o.d -o tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ByteCode/Interp.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/lib/AST/ByteCode/Interp.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/lib/AST/ByteCode/Interp.cpp:2415:
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:3543:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
3543 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:40940:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
40940 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:40979:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
40979 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:41018:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
41018 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48019:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48019 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48027:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48027 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48035:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48035 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48043:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48043 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48051:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48051 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48059:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48059 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48067:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48067 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48075:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48075 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48083:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48083 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48091:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48091 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48099:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48099 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48107:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48107 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48115:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48115 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48123:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48123 | CodePtr OpPC = PC;
|         ^~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/lib/AST/Opcodes.inc:48131:9: error: unused variable 'OpPC' [-Werror,-Wunused-variable]
48131 | CodePtr OpPC = PC;
|         ^~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/173756