Displaying 3 results from an estimated 3 matches for "scaled_bits".
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unscaled_bits
2018 Jun 05
3
[RFC][SVE] Supporting SIMD instruction sets with variable vector lengths
...need constant integer values or would a ConstantExpr
> sufffice? We could add a ConstantVScale or something to make it work.
I agree the name is not ideal and I'm open to suggestions -- I was thinking of the two
integers representing the known-at-compile-time terms in an expression:
'(scaled_bits * vscale) + unscaled_bits'.
Assuming the pair is of the form (unscaled, scaled), then for a type with a size known at
compile time like <4 x i32> the size would be (128, 0).
For a scalable type like <scalable 4 x i32> the size would be (0, 128).
For a struct with, say, a <scal...
2018 Jun 06
2
[RFC][SVE] Supporting SIMD instruction sets with variable vector lengths
...stantExpr
>>> sufffice? We could add a ConstantVScale or something to make it work.
>>
>> I agree the name is not ideal and I'm open to suggestions -- I was thinking of the two
>> integers representing the known-at-compile-time terms in an expression:
>> '(scaled_bits * vscale) + unscaled_bits'.
>>
>> Assuming the pair is of the form (unscaled, scaled), then for a type with a size known at
>> compile time like <4 x i32> the size would be (128, 0).
>>
>> For a scalable type like <scalable 4 x i32> the size would be...
2018 Jun 05
14
[RFC][SVE] Supporting SIMD instruction sets with variable vector lengths
Hi,
Now that Sander has committed enough MC support for SVE, here's an updated
RFC for variable length vector support with a set of 14 patches (listed at the end)
to demonstrate code generation for SVE using the extensions proposed in the RFC.
I have some ideas about how to support RISC-V's upcoming extension alongside
SVE; I'll send an email with some additional comments on