Replace ExtractLane format with BinaryImm8

Like https://github.com/bytecodealliance/wasmtime/pull/1762, this change the name of the `ExtractLane` format to the more-general `BinaryImm8` and renames its immediate argument from `lane` to `imm`.
This commit is contained in:
Andrew Brown
2020-05-27 09:24:46 -07:00
parent 7d6e94b952
commit a27a079d65
9 changed files with 36 additions and 39 deletions

View File

@@ -283,7 +283,7 @@ pub(crate) fn define(
Packed Shuffle Doublewords -- copies data from either memory or lanes in an extended
register and re-orders the data according to the passed immediate byte.
"#,
&formats.extract_lane,
&formats.binary_imm8,
)
.operands_in(vec![a, i]) // TODO allow copying from memory here (need more permissive type than TxN)
.operands_out(vec![a]),
@@ -314,7 +314,7 @@ pub(crate) fn define(
The lane index, ``Idx``, is an immediate value, not an SSA value. It
must indicate a valid lane index for the type of ``x``.
"#,
&formats.extract_lane,
&formats.binary_imm8,
)
.operands_in(vec![x, Idx])
.operands_out(vec![a]),

View File

@@ -996,20 +996,20 @@ pub(crate) fn define<'shared>(
// XX /r ib with 8-bit unsigned immediate (e.g. for pshufd)
{
recipes.add_template_inferred(
EncodingRecipeBuilder::new("r_ib_unsigned_fpr", &formats.extract_lane, 2)
EncodingRecipeBuilder::new("r_ib_unsigned_fpr", &formats.binary_imm8, 2)
.operands_in(vec![fpr])
.operands_out(vec![fpr])
.inst_predicate(InstructionPredicate::new_is_unsigned_int(
&*formats.extract_lane,
"lane",
&*formats.binary_imm8,
"imm",
8,
0,
)) // TODO if the format name is changed then "lane" should be renamed to something more appropriate--ordering mask? broadcast immediate?
))
.emit(
r#"
{{PUT_OP}}(bits, rex2(in_reg0, out_reg0), sink);
modrm_rr(in_reg0, out_reg0, sink);
let imm:i64 = lane.into();
let imm: i64 = imm.into();
sink.put1(imm as u8);
"#,
),
@@ -1020,17 +1020,17 @@ pub(crate) fn define<'shared>(
// XX /r ib with 8-bit unsigned immediate (e.g. for extractlane)
{
recipes.add_template_inferred(
EncodingRecipeBuilder::new("r_ib_unsigned_gpr", &formats.extract_lane, 2)
EncodingRecipeBuilder::new("r_ib_unsigned_gpr", &formats.binary_imm8, 2)
.operands_in(vec![fpr])
.operands_out(vec![gpr])
.inst_predicate(InstructionPredicate::new_is_unsigned_int(
&*formats.extract_lane, "lane", 8, 0,
&*formats.binary_imm8, "imm", 8, 0,
))
.emit(
r#"
{{PUT_OP}}(bits, rex2(out_reg0, in_reg0), sink);
modrm_rr(out_reg0, in_reg0, sink); // note the flipped register in the ModR/M byte
let imm:i64 = lane.into();
let imm: i64 = imm.into();
sink.put1(imm as u8);
"#,
), "size_with_inferred_rex_for_inreg0_outreg0"

View File

@@ -17,7 +17,7 @@ pub(crate) struct Formats {
pub(crate) cond_trap: Rc<InstructionFormat>,
pub(crate) copy_special: Rc<InstructionFormat>,
pub(crate) copy_to_ssa: Rc<InstructionFormat>,
pub(crate) extract_lane: Rc<InstructionFormat>,
pub(crate) binary_imm8: Rc<InstructionFormat>,
pub(crate) float_compare: Rc<InstructionFormat>,
pub(crate) float_cond: Rc<InstructionFormat>,
pub(crate) float_cond_trap: Rc<InstructionFormat>,
@@ -76,6 +76,8 @@ impl Formats {
binary: Builder::new("Binary").value().value().build(),
binary_imm8: Builder::new("BinaryImm8").value().imm(&imm.uimm8).build(),
binary_imm: Builder::new("BinaryImm").value().imm(&imm.imm64).build(),
// The select instructions are controlled by the second VALUE operand.
@@ -100,11 +102,6 @@ impl Formats {
nullary: Builder::new("NullAry").build(),
extract_lane: Builder::new("ExtractLane")
.value()
.imm_with_name("lane", &imm.uimm8)
.build(),
shuffle: Builder::new("Shuffle")
.value()
.value()

View File

@@ -579,7 +579,7 @@ fn define_simd_lane_access(
may or may not be zeroed depending on the ISA but the type system should prevent using
``a`` as anything other than the extracted value.
"#,
&formats.extract_lane,
&formats.binary_imm8,
)
.operands_in(vec![x, Idx])
.operands_out(vec![a]),

View File

@@ -1195,10 +1195,10 @@ fn convert_extractlane(
let mut pos = FuncCursor::new(func).at_inst(inst);
pos.use_srcloc(inst);
if let ir::InstructionData::ExtractLane {
if let ir::InstructionData::BinaryImm8 {
opcode: ir::Opcode::Extractlane,
arg,
lane,
imm: lane,
} = pos.func.dfg[inst]
{
// NOTE: the following legalization assumes that the upper bits of the XMM register do

View File

@@ -756,10 +756,10 @@ impl<'a> Verifier<'a> {
| UnaryIeee64 { .. }
| UnaryBool { .. }
| Binary { .. }
| BinaryImm8 { .. }
| BinaryImm { .. }
| Ternary { .. }
| TernaryImm8 { .. }
| ExtractLane { .. }
| Shuffle { .. }
| IntCompare { .. }
| IntCompareImm { .. }
@@ -1912,9 +1912,9 @@ impl<'a> Verifier<'a> {
Ok(())
}
}
ir::InstructionData::ExtractLane {
ir::InstructionData::BinaryImm8 {
opcode: ir::instructions::Opcode::Extractlane,
lane,
imm: lane,
arg,
..
}

View File

@@ -508,6 +508,7 @@ pub fn write_operands(
constant_handle, ..
} => write!(w, " {}", constant_handle),
Binary { args, .. } => write!(w, " {}, {}", args[0], args[1]),
BinaryImm8 { arg, imm, .. } => write!(w, " {}, {}", arg, imm),
BinaryImm { arg, imm, .. } => write!(w, " {}, {}", arg, imm),
Ternary { args, .. } => write!(w, " {}, {}, {}", args[0], args[1], args[2]),
MultiAry { ref args, .. } => {
@@ -519,7 +520,6 @@ pub fn write_operands(
}
NullAry { .. } => write!(w, " "),
TernaryImm8 { imm, args, .. } => write!(w, " {}, {}, {}", args[0], args[1], imm),
ExtractLane { lane, arg, .. } => write!(w, " {}, {}", arg, lane),
Shuffle { mask, args, .. } => {
let data = dfg.immediates.get(mask).expect(
"Expected the shuffle mask to already be inserted into the immediates table",