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Add intrinsics for the new FP conversions introduced by the 2024 dpISA #407

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Add intrinsics for the new FP conversions introduced by the 2024 dpISA #407

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f080ec7
Add intrinsics for the new FP conversions introduced by the 2024 dpISA
amilendra Aug 20, 2025
85c2698
Extend FP Single<->Double precision conversions to return results in …
amilendra Oct 8, 2025
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9 changes: 9 additions & 0 deletions main/acle.md
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Expand Up @@ -465,6 +465,7 @@ Armv8.4-A [[ARMARMv84]](#ARMARMv84). Support is added for the Dot Product intrin

* Added feature test macro for FEAT_SSVE_FEXPA.
* Added feature test macro for FEAT_CSSC.
* Added support for FEAT_FPRCVT intrinsics and `__ARM_FEATURE_FPRCVT`.

### References

Expand Down Expand Up @@ -2207,6 +2208,13 @@ ACLE intrinsics are available. This implies that `__ARM_FEATURE_SM4` and
floating-point absolute minimum and maximum instructions (FEAT_FAMINMAX)
and if the associated ACLE intrinsics are available.

### FPRCVT extension

`__ARM_FEATURE_FPRCVT` is defined to `1` if there is hardware
support for floating-point to/from integer conversion instructions
with only scalar SIMD&FP register operands and results, and with
different input and output register sizes.

### Lookup table extensions

`__ARM_FEATURE_LUT` is defined to 1 if there is hardware support for
Expand Down Expand Up @@ -2590,6 +2598,7 @@ be found in [[BA]](#BA).
| [`__ARM_FEATURE_FP8DOT2`](#modal-8-bit-floating-point-extensions) | Modal 8-bit floating-point extensions | 1 |
| [`__ARM_FEATURE_FP8DOT4`](#modal-8-bit-floating-point-extensions) | Modal 8-bit floating-point extensions | 1 |
| [`__ARM_FEATURE_FP8FMA`](#modal-8-bit-floating-point-extensions) | Modal 8-bit floating-point extensions | 1 |
| [`__ARM_FEATURE_FPRCVT`](#fprcvt-extension) | FPRCVT extension | 1 |
| [`__ARM_FEATURE_FRINT`](#availability-of-armv8.5-a-floating-point-rounding-intrinsics) | Floating-point rounding extension (Arm v8.5-A) | 1 |
| [`__ARM_FEATURE_GCS`](#guarded-control-stack) | Guarded Control Stack | 1 |
| [`__ARM_FEATURE_GCS_DEFAULT`](#guarded-control-stack) | Guarded Control Stack protection can be enabled | 1 |
Expand Down
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