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Add x86 complex encodings for SIMD load-extend instructions

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This commit is contained in:
Andrew Brown
2020-04-30 10:20:59 -07:00
parent 38dff29179
commit a312506262
3 changed files with 127 additions and 2 deletions
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35
cranelift/codegen/meta/src/isa/x86/encodings.rs
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@@ -1607,8 +1607,11 @@ fn define_simd(
let sadd_sat = shared.by_name("sadd_sat");
let scalar_to_vector = shared.by_name("scalar_to_vector");
let sload8x8 = shared.by_name("sload8x8");
let sload8x8_complex = shared.by_name("sload8x8_complex");
let sload16x4 = shared.by_name("sload16x4");
let sload16x4_complex = shared.by_name("sload16x4_complex");
let sload32x2 = shared.by_name("sload32x2");
let sload32x2_complex = shared.by_name("sload32x2_complex");
let spill = shared.by_name("spill");
let sqrt = shared.by_name("sqrt");
let sshr_imm = shared.by_name("sshr_imm");
@@ -1617,8 +1620,11 @@ fn define_simd(
let store_complex = shared.by_name("store_complex");
let uadd_sat = shared.by_name("uadd_sat");
let uload8x8 = shared.by_name("uload8x8");
let uload8x8_complex = shared.by_name("uload8x8_complex");
let uload16x4 = shared.by_name("uload16x4");
let uload16x4_complex = shared.by_name("uload16x4_complex");
let uload32x2 = shared.by_name("uload32x2");
let uload32x2_complex = shared.by_name("uload32x2_complex");
let ushr_imm = shared.by_name("ushr_imm");
let usub_sat = shared.by_name("usub_sat");
let vconst = shared.by_name("vconst");
@@ -1983,6 +1989,35 @@ fn define_simd(
}
}
// SIMD load extend (complex addressing)
let is_load_complex_length_two =
InstructionPredicate::new_length_equals(&*formats.load_complex, 2);
for (inst, opcodes) in &[
(uload8x8_complex, &PMOVZXBW),
(uload16x4_complex, &PMOVZXWD),
(uload32x2_complex, &PMOVZXDQ),
(sload8x8_complex, &PMOVSXBW),
(sload16x4_complex, &PMOVSXWD),
(sload32x2_complex, &PMOVSXDQ),
] {
for recipe in &[
rec_fldWithIndex,
rec_fldWithIndexDisp8,
rec_fldWithIndexDisp32,
] {
let template = recipe.opcodes(*opcodes);
let predicate = |encoding: EncodingBuilder| {
encoding
.isa_predicate(use_sse41_simd)
.inst_predicate(is_load_complex_length_two.clone())
};
e.enc32_func(inst.clone(), template.clone(), predicate);
// No infer_rex calculator for these recipes; place REX version first as in enc_x86_64.
e.enc64_func(inst.clone(), template.rex(), predicate);
e.enc64_func(inst.clone(), template, predicate);
}
}
// SIMD integer addition
for (ty, opcodes) in &[(I8, &PADDB), (I16, &PADDW), (I32, &PADDD), (I64, &PADDQ)] {
let iadd = iadd.bind(vector(*ty, sse_vector_size));