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[FMV] A depended-on feature must be of lower priority than the dependant. #376

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Jan 10, 2025
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[FMV] A depended-on feature must be of lower priority than the dependant. #376

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[FMV] A depended-on feature must be of lower priority than the depend…
labrinea Jan 8, 2025
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Merge branch 'main' into fmv-only-depend-on-lower-priority-features
labrinea Jan 8, 2025
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4 changes: 3 additions & 1 deletion main/acle.md
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Expand Up @@ -423,6 +423,7 @@ Armv8.4-A [[ARMARMv84]](#ARMARMv84). Support is added for the Dot Product intrin
* Removed Function Multi Versioning features ebf16, memtag3, and rpres.
* Removed Function Multi Versioning feature dgh.
* Document Function Multi Versioning feature dependencies.
* Clarify Function Multi Versioning feature dependency rule.
* Simplified Function Multi Versioning version selection rules.
* Fixed range of operand `o0` (too small) in AArch64 system register designations.
* Fixed SVE2.1 quadword gather load/scatter store intrinsics.
Expand Down Expand Up @@ -2862,7 +2863,8 @@ The following table lists the architectures feature mapping for AArch64
If a feature depends on another feature as defined by the table below then:

* the depended-on feature *need not* be specified in the attribute,
* the depended-on feature *may* be specified in the attribute.
* the depended-on feature *may* be specified in the attribute,
* the depended-on feature *must* be of lower priority.

These dependencies are taken into account transitively when selecting the
most appropriate version of a function (see section [Selection](#selection)).
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