| Issue |
79659
|
| Summary |
clang: __HAVE_FUNCTION_MULTIVERSIONING is mis-reported in previously-shipped compilers
|
| Labels |
clang,
backend:AArch64
|
| Assignees |
|
| Reporter |
jroelofs
|
Clang's FMV support implicitly depends on support for ifuncs, which until recently [1, 2] weren't supported on Darwin platforms. This means that previously-shipped compilers report that they support it via the pre-defined macro, even when the feature does not work.
1: https://github.com/llvm/llvm-project/pull/73686
2: https://github.com/llvm/llvm-project/pull/73688/files#diff-7930fda388572c1b90c30151343a92d058fd44508c32406a6a955bec9e83ce82R1426
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