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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/isa/aarch64/lower_inst.rs
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@@ -644,11 +644,7 @@ pub(crate) fn lower_insn_to_regs(
panic!("Branch opcode reached non-branch lowering logic!");
}
Opcode::Vconst => {
let value = const_param_to_u128(ctx, insn).expect("Invalid immediate bytes");
let rd = get_output_reg(ctx, outputs[0]).only_reg().unwrap();
lower_constant_f128(ctx, rd, value);
}
Opcode::Vconst => implemented_in_isle(ctx),
Opcode::RawBitcast => {
let rm = put_input_in_reg(ctx, inputs[0], NarrowValueMode::None);