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x64: Migrate iadd_pairwise to ISLE (#4718)

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* Add a test for iadd_pairwise with swiden input

* Implement iadd_pairwise for swiden_{low,high} input

* Add a test case for iadd_pairwise with uwiden input

* Implement iadd_pairwise with uwiden
This commit is contained in:
Trevor Elliott
2022-08-16 12:21:06 -07:00
committed by GitHub
parent bc8e36a6af
commit fbfceaec98
5 changed files with 172 additions and 160 deletions
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38
cranelift/codegen/src/isa/x64/lower/isle.rs
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@@ -781,6 +781,30 @@ impl Context for IsleContext<'_, '_, MInst, Flags, IsaFlags, 6> {
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&UINT_MASK_HIGH))
}
#[inline]
fn iadd_pairwise_mul_const_16(&mut self) -> VCodeConstant {
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&IADD_PAIRWISE_MUL_CONST_16))
}
#[inline]
fn iadd_pairwise_mul_const_32(&mut self) -> VCodeConstant {
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&IADD_PAIRWISE_MUL_CONST_32))
}
#[inline]
fn iadd_pairwise_xor_const_32(&mut self) -> VCodeConstant {
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&IADD_PAIRWISE_XOR_CONST_32))
}
#[inline]
fn iadd_pairwise_addd_const_32(&mut self) -> VCodeConstant {
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&IADD_PAIRWISE_ADDD_CONST_32))
}
}
impl IsleContext<'_, '_, MInst, Flags, IsaFlags, 6> {
@@ -907,3 +931,17 @@ const UINT_MASK: [u8; 16] = [
const UINT_MASK_HIGH: [u8; 16] = [
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x43,
];
const IADD_PAIRWISE_MUL_CONST_16: [u8; 16] = [0x01; 16];
const IADD_PAIRWISE_MUL_CONST_32: [u8; 16] = [
0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
];
const IADD_PAIRWISE_XOR_CONST_32: [u8; 16] = [
0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80,
];
const IADD_PAIRWISE_ADDD_CONST_32: [u8; 16] = [
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00,
];