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A64: Implement MLS (by element)

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Lioncash 2018-04-18 19:42:08 -04:00 committed by MerryMage
parent 1651e60462
commit ab35dc0e78
3 changed files with 14 additions and 2 deletions
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2
src/frontend/A64/decoder/a64.inc
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@ -841,7 +841,7 @@ INST(MUL_elt, "MUL (by element)", "0Q001
//INST(FMLSL_elt_2, "FMLSL, FMLSL2 (by element)", "0Q1011111zLMmmmm1100H0nnnnnddddd") //INST(FMLSL_elt_2, "FMLSL, FMLSL2 (by element)", "0Q1011111zLMmmmm1100H0nnnnnddddd")
INST(MLA_elt, "MLA (by element)", "0Q101111zzLMmmmm0000H0nnnnnddddd") INST(MLA_elt, "MLA (by element)", "0Q101111zzLMmmmm0000H0nnnnnddddd")
//INST(UMLAL_elt, "UMLAL, UMLAL2 (by element)", "0Q101111zzLMmmmm0010H0nnnnnddddd") //INST(UMLAL_elt, "UMLAL, UMLAL2 (by element)", "0Q101111zzLMmmmm0010H0nnnnnddddd")
//INST(MLS_elt, "MLS (by element)", "0Q101111zzLMmmmm0100H0nnnnnddddd") INST(MLS_elt, "MLS (by element)", "0Q101111zzLMmmmm0100H0nnnnnddddd")
//INST(UMLSL_elt, "UMLSL, UMLSL2 (by element)", "0Q101111zzLMmmmm0110H0nnnnnddddd") //INST(UMLSL_elt, "UMLSL, UMLSL2 (by element)", "0Q101111zzLMmmmm0110H0nnnnnddddd")
//INST(UMULL_elt, "UMULL, UMULL2 (by element)", "0Q101111zzLMmmmm1010H0nnnnnddddd") //INST(UMULL_elt, "UMULL, UMULL2 (by element)", "0Q101111zzLMmmmm1010H0nnnnnddddd")
//INST(SQRDMLAH_elt_2, "SQRDMLAH (by element)", "0Q101111zzLMmmmm1101H0nnnnnddddd") //INST(SQRDMLAH_elt_2, "SQRDMLAH (by element)", "0Q101111zzLMmmmm1101H0nnnnnddddd")

2
src/frontend/A64/translate/impl/impl.h
View file

@ -910,7 +910,7 @@ struct TranslatorVisitor final {
bool FMLSL_elt_2(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool FMLSL_elt_2(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd); bool MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool UMLAL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool UMLAL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool MLS_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool MLS_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool UMLSL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool UMLSL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool UMULL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool UMULL_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool UDOT_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd); bool UDOT_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);

12
src/frontend/A64/translate/impl/simd_vector_x_indexed_element.cpp
View file

@ -20,6 +20,7 @@ std::pair<size_t, Vec> Combine(Imm<2> size, Imm<1> H, Imm<1> L, Imm<1> M, Imm<4>
enum class ExtraBehavior { enum class ExtraBehavior {
None, None,
Accumulate, Accumulate,
Subtract,
}; };
void MultiplyByElement(TranslatorVisitor& v, bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd, void MultiplyByElement(TranslatorVisitor& v, bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd,
@ -36,6 +37,8 @@ void MultiplyByElement(TranslatorVisitor& v, bool Q, Imm<2> size, Imm<1> L, Imm<
IR::U128 result = v.ir.VectorMultiply(esize, operand1, operand2); IR::U128 result = v.ir.VectorMultiply(esize, operand1, operand2);
if (extra_behavior == ExtraBehavior::Accumulate) { if (extra_behavior == ExtraBehavior::Accumulate) {
result = v.ir.VectorAdd(esize, operand3, result); result = v.ir.VectorAdd(esize, operand3, result);
} else if (extra_behavior == ExtraBehavior::Subtract) {
result = v.ir.VectorSub(esize, operand3, result);
} }
v.V(datasize, Vd, result); v.V(datasize, Vd, result);
@ -51,6 +54,15 @@ bool TranslatorVisitor::MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4>
return true; return true;
} }
bool TranslatorVisitor::MLS_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
if (size != 0b01 && size != 0b10) {
return UnallocatedEncoding();
}
MultiplyByElement(*this, Q, size, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::Subtract);
return true;
}
bool TranslatorVisitor::MUL_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) { bool TranslatorVisitor::MUL_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
if (size != 0b01 && size != 0b10) { if (size != 0b01 && size != 0b10) {
return UnallocatedEncoding(); return UnallocatedEncoding();