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Port vconst to ISLE (AArch64) (#4750)

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* Port `vconst` to ISLE (AArch64)

Ported the existing implementation of `vconst` to ISLE for AArch64, and
added support for 64-bit vector constants.

Also introduced 64-bit `vconst` support to the interpreter.

Copyright (c) 2022 Arm Limited

* Replace if-chains with match statements

Copyright (c) 2022 Arm Limited
This commit is contained in:
Damian Heaton
2022-08-23 17:40:11 +01:00
committed by GitHub
parent 418dbc15bd
commit da1fb305a3
10 changed files with 97 additions and 21 deletions
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6
cranelift/codegen/src/machinst/isle.rs
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@@ -683,6 +683,12 @@ macro_rules! isle_prelude_methods {
Some(u128::from_le_bytes(bytes.try_into().ok()?))
}
#[inline]
fn u64_from_constant(&mut self, constant: Constant) -> Option<u64> {
let bytes = self.lower_ctx.get_constant_data(constant).as_slice();
Some(u64::from_le_bytes(bytes.try_into().ok()?))
}
#[inline]
fn u128_from_constant(&mut self, constant: Constant) -> Option<u128> {
let bytes = self.lower_ctx.get_constant_data(constant).as_slice();