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Add x86 implementation of insertlane instruction

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This commit is contained in:
Andrew Brown
2019-07-11 13:18:55 -07:00
committed by Dan Gohman
parent 683e7c75a3
commit 3b36a1d1d8
3 changed files with 91 additions and 0 deletions
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22
cranelift/codegen/meta/src/isa/x86/recipes.rs
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@@ -373,6 +373,7 @@ pub fn define<'shared>(
let f_float_cond_trap = formats.by_name("FloatCondTrap");
let f_func_addr = formats.by_name("FuncAddr");
let f_indirect_jump = formats.by_name("IndirectJump");
let f_insert_lane = formats.by_name("InsertLane");
let f_int_compare = formats.by_name("IntCompare");
let f_int_compare_imm = formats.by_name("IntCompareImm");
let f_int_cond = formats.by_name("IntCond");
@@ -816,6 +817,27 @@ pub fn define<'shared>(
);
}
// XX /r ib with 8-bit unsigned immediate (e.g. for insertlane)
{
let format = formats.get(f_insert_lane);
recipes.add_template_recipe(
EncodingRecipeBuilder::new("r_ib_unsigned_r", f_insert_lane, 2)
.operands_in(vec![fpr, gpr])
.operands_out(vec![0])
.inst_predicate(InstructionPredicate::new_is_unsigned_int(
format, "lane", 8, 0,
))
.emit(
r#"
{{PUT_OP}}(bits, rex2(in_reg1, in_reg0), sink);
modrm_rr(in_reg1, in_reg0, sink);
let imm:i64 = lane.into();
sink.put1(imm as u8);
"#,
),
);
}
{
// XX /n id with 32-bit immediate sign-extended. UnaryImm version.
let format = formats.get(f_unary_imm);