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[FMV] Add __FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL. #301

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Aug 19, 2024
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[FMV] Add __FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL. #301

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[FMV] Add __FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL.
DanielKristofKiss Aug 6, 2024
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Address review comments
DanielKristofKiss Aug 15, 2024
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11 changes: 11 additions & 0 deletions main/acle.md
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Original file line number Diff line number Diff line change
Expand Up @@ -400,6 +400,8 @@ Armv8.4-A [[ARMARMv84]](#ARMARMv84). Support is added for the Dot Product intrin
* Added a requirement for function version declaration in Function Multi Versioning.
* Fixed some rendering issues in the online Markdown documentation and fixed
a misplaced anchor.
* Added `__FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL` to indicate the support
level of the [Function Multi Versioning](#function-multi-versioning).

### References

Expand Down Expand Up @@ -2535,6 +2537,15 @@ following:
versioning mechanism described in this section is supported by the
compiler and it is enabled.

`__FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL` is defined to the currently supported
version of the ACLE. The value and the format are the same as the `__ARM_ACLE`.

For example, it can be implemented as:

``` c
#define __FUNCTION_MULTI_VERSIONING_SUPPORT_LEVEL __ARM_ACLE_VERSION(2024, 3, 0)
```

### Name mangling

The `"default"` version is mangled with `".default"` on top of the
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