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A64: Implement SQRDMULH (vector), vector variant

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This commit is contained in:
MerryMage 2018-09-15 13:57:50 +01:00
parent a9ffcf08b1
commit 12243692f5
3 changed files with 19 additions and 2 deletions
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2
src/backend/x64/emit_x64_vector.cpp
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@ -3194,7 +3194,7 @@ void EmitX64::EmitVectorSignedSaturatedDoublingMultiply32(EmitContext& ctx, IR::
const Xbyak::Xmm lower_result = ctx.reg_alloc.ScratchXmm();
code.vpsllq(lower_result, even, 32);
code.vblendps(lower_result, lower_result, even, 0b0101);
code.vblendps(lower_result, lower_result, odds, 0b0101);
ctx.reg_alloc.DefineValue(lower_inst, lower_result);
ctx.EraseInstruction(lower_inst);

2
src/frontend/A64/decoder/a64.inc
View file

@ -763,7 +763,7 @@ INST(MLS_vec, "MLS (vector)", "0Q101
INST(PMUL, "PMUL", "0Q101110zz1mmmmm100111nnnnnddddd")
INST(UMAXP, "UMAXP", "0Q101110zz1mmmmm101001nnnnnddddd")
INST(UMINP, "UMINP", "0Q101110zz1mmmmm101011nnnnnddddd")
//INST(SQRDMULH_vec_2, "SQRDMULH (vector)", "0Q101110zz1mmmmm101101nnnnnddddd")
INST(SQRDMULH_vec_2, "SQRDMULH (vector)", "0Q101110zz1mmmmm101101nnnnnddddd")
INST(FMAXNMP_vec_2, "FMAXNMP (vector)", "0Q1011100z1mmmmm110001nnnnnddddd")
//INST(FMLAL_vec_2, "FMLAL, FMLAL2 (vector)", "0Q1011100z1mmmmm110011nnnnnddddd")
INST(FADDP_vec_2, "FADDP (vector)", "0Q1011100z1mmmmm110101nnnnnddddd")

17
src/frontend/A64/translate/impl/simd_three_same.cpp
View file

@ -438,6 +438,23 @@ bool TranslatorVisitor::SQDMULH_vec_2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec V
return true;
}
bool TranslatorVisitor::SQRDMULH_vec_2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b00 || size == 0b11) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = V(datasize, Vm);
const IR::UpperAndLower multiply = ir.VectorSignedSaturatedDoublingMultiply(esize, operand1, operand2);
const IR::U128 result = ir.VectorAdd(esize, multiply.upper, ir.VectorLogicalShiftRight(esize, multiply.lower, static_cast<u8>(esize - 1)));
V(datasize, Vd, result);
return true;
}
bool TranslatorVisitor::ADD_vector(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11 && !Q) return ReservedValue();
const size_t esize = 8 << size.ZeroExtend<size_t>();