Implement fjcvtzs under the name __jcvt like the C intrinsic #1938
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This instruction is only available when the jsconv target_feature is available, so on ARMv8.3 or higher. It is used e.g. by Ruffle[0] to speed up its conversion from f64 to i32, or by any JS engine probably. I’ve picked the stdarch_aarch64_jscvt feature because it’s the name of the FEAT_JSCVT, but hesitated with naming it stdarch_aarch64_jsconv (the name of the target_feature) or stdarch_aarch64_jcvt (the name of the C intrinsic) or stdarch_aarch64_fjcvtzs (the name of the instruction), this choice is purely arbitrary and I guess it could be argued one way or another. I wouldn’t expect it to stay unstable for too long, so ultimately this shouldn’t matter much. This feature is now tracked in this issue[1]. [0] ruffle-rs/ruffle#21780 [1] rust-lang/rust#147555
Oops, thanks for the hint. |
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This instruction is only available when the
jsconvtarget_feature is available, so on ARMv8.3 or higher.It is used e.g. by Ruffle to speed up its conversion from
f64toi32, or by any JS engine probably.I got redirected to this repository from rust-lang/rust#147517