[clang] [flang] [llvm] [flang] Improve the error message for the option "-fconvert" with allowed values (PR #215966)

[via cfe-commits]

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>lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o</summary>

```
FAILED: lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o
sccache /opt/llvm/bin/clang++ -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Option -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o -MF lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o.d -o lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/Arg.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/Arg.cpp:9:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Arg.h:19:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Option.h:15:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error generated.
```
</details>
<details>
<summary>lib/Option/CMakeFiles/LLVMOption.dir/ArgList.cpp.o</summary>

```
FAILED: lib/Option/CMakeFiles/LLVMOption.dir/ArgList.cpp.o
sccache /opt/llvm/bin/clang++ -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Option -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Option/CMakeFiles/LLVMOption.dir/ArgList.cpp.o -MF lib/Option/CMakeFiles/LLVMOption.dir/ArgList.cpp.o.d -o lib/Option/CMakeFiles/LLVMOption.dir/ArgList.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/ArgList.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/ArgList.cpp:9:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/ArgList.h:19:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Arg.h:19:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Option.h:15:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error generated.
```
</details>
<details>
<summary>lib/Option/CMakeFiles/LLVMOption.dir/Option.cpp.o</summary>

```
FAILED: lib/Option/CMakeFiles/LLVMOption.dir/Option.cpp.o
sccache /opt/llvm/bin/clang++ -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Option -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Option/CMakeFiles/LLVMOption.dir/Option.cpp.o -MF lib/Option/CMakeFiles/LLVMOption.dir/Option.cpp.o.d -o lib/Option/CMakeFiles/LLVMOption.dir/Option.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/Option.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/Option.cpp:9:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Option.h:15:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error generated.
```
</details>
<details>
<summary>lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o</summary>

```
FAILED: lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o
sccache /opt/llvm/bin/clang++ -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Option -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o -MF lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o.d -o lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/OptTable.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Option/OptTable.cpp:9:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error generated.
```
</details>
<details>
<summary>utils/TableGen/CMakeFiles/llvm-tblgen.dir/OptionParserEmitter.cpp.o</summary>

```
FAILED: utils/TableGen/CMakeFiles/llvm-tblgen.dir/OptionParserEmitter.cpp.o
sccache /opt/llvm/bin/clang++ -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/utils/TableGen -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/utils/TableGen -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT utils/TableGen/CMakeFiles/llvm-tblgen.dir/OptionParserEmitter.cpp.o -MF utils/TableGen/CMakeFiles/llvm-tblgen.dir/OptionParserEmitter.cpp.o.d -o utils/TableGen/CMakeFiles/llvm-tblgen.dir/OptionParserEmitter.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/utils/TableGen/OptionParserEmitter.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/utils/TableGen/OptionParserEmitter.cpp:15:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error generated.
```
</details>
<details>
<summary>lib/ObjCopy/CMakeFiles/LLVMObjCopy.dir/ELF/ELFObjcopy.cpp.o</summary>

```
FAILED: lib/ObjCopy/CMakeFiles/LLVMObjCopy.dir/ELF/ELFObjcopy.cpp.o
sccache /opt/llvm/bin/clang++ -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/ObjCopy -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/ObjCopy -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/ObjCopy/CMakeFiles/LLVMObjCopy.dir/ELF/ELFObjcopy.cpp.o -MF lib/ObjCopy/CMakeFiles/LLVMObjCopy.dir/ELF/ELFObjcopy.cpp.o.d -o lib/ObjCopy/CMakeFiles/LLVMObjCopy.dir/ELF/ELFObjcopy.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/ObjCopy/ELF/ELFObjcopy.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/ObjCopy/ELF/ELFObjcopy.cpp:24:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/Option.h:15:
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Option/OptTable.h:333:34: error: no member named 'Values' in 'llvm::opt::OptTable::Info'
333 |     return StringRef(getInfo(id).Values);
|                      ~~~~~~~~~~~ ^
1 error 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/215966