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A64: Implement SDOT and UDOT's (by element) variants

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Gets all of the dot product instructions out of the way.
This commit is contained in:
Lioncash 2018-08-19 20:02:49 -04:00 committed by MerryMage
parent 21df1fb539
commit 4ff39c6ea8
3 changed files with 47 additions and 4 deletions
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4
src/frontend/A64/decoder/a64.inc
View file

@ -829,7 +829,7 @@ INST(MUL_elt, "MUL (by element)", "0Q001
//INST(SQDMULL_elt_2, "SQDMULL, SQDMULL2 (by element)", "0Q001111zzLMmmmm1011H0nnnnnddddd")
//INST(SQDMULH_elt_2, "SQDMULH (by element)", "0Q001111zzLMmmmm1100H0nnnnnddddd")
//INST(SQRDMULH_elt_2, "SQRDMULH (by element)", "0Q001111zzLMmmmm1101H0nnnnnddddd")
//INST(SDOT_elt, "SDOT (by element)", "0Q001111zzLMmmmm1110H0nnnnnddddd")
INST(SDOT_elt, "SDOT (by element)", "0Q001111zzLMmmmm1110H0nnnnnddddd")
//INST(FMLA_elt_3, "FMLA (by element)", "0Q00111100LMmmmm0001H0nnnnnddddd")
INST(FMLA_elt_4, "FMLA (by element)", "0Q0011111zLMmmmm0001H0nnnnnddddd")
//INST(FMLS_elt_3, "FMLS (by element)", "0Q00111100LMmmmm0101H0nnnnnddddd")
@ -846,7 +846,7 @@ INST(MLS_elt, "MLS (by element)", "0Q101
//INST(UMLSL_elt, "UMLSL, UMLSL2 (by element)", "0Q101111zzLMmmmm0110H0nnnnnddddd")
//INST(UMULL_elt, "UMULL, UMULL2 (by element)", "0Q101111zzLMmmmm1010H0nnnnnddddd")
//INST(SQRDMLAH_elt_2, "SQRDMLAH (by element)", "0Q101111zzLMmmmm1101H0nnnnnddddd")
//INST(UDOT_elt, "UDOT (by element)", "0Q101111zzLMmmmm1110H0nnnnnddddd")
INST(UDOT_elt, "UDOT (by element)", "0Q101111zzLMmmmm1110H0nnnnnddddd")
//INST(SQRDMLSH_elt_2, "SQRDMLSH (by element)", "0Q101111zzLMmmmm1111H0nnnnnddddd")
//INST(FMULX_elt_3, "FMULX (by element)", "0Q10111100LMmmmm1001H0nnnnnddddd")
//INST(FMULX_elt_4, "FMULX (by element)", "0Q1011111zLMmmmm1001H0nnnnnddddd")

4
src/frontend/A64/translate/impl/impl.h
View file

@ -900,7 +900,7 @@ struct TranslatorVisitor final {
bool SQDMULL_elt_2(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Reg Rn, Vec Vd);
bool SQDMULH_elt_2(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool SQRDMULH_elt_2(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool SDOT_elt(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool SDOT_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool FMLA_elt_3(bool Q, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMLA_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool FMLS_elt_3(bool Q, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
@ -917,7 +917,7 @@ struct TranslatorVisitor final {
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 SQRDMLAH_elt_2(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, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool SQRDMLSH_elt_2(bool Q, Imm<2> size, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMULX_elt_3(bool Q, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMULX_elt_4(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);

43
src/frontend/A64/translate/impl/simd_vector_x_indexed_element.cpp
View file

@ -86,6 +86,41 @@ bool FPMultiplyByElement(TranslatorVisitor& v, bool Q, bool sz, Imm<1> L, Imm<1>
return true;
}
using ExtensionFunction = IR::U32 (IREmitter::*)(const IR::UAny&);
bool DotProduct(TranslatorVisitor& v, bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H,
Vec Vn, Vec Vd, ExtensionFunction extension) {
if (size != 0b10) {
return v.ReservedValue();
}
const Vec Vm = concatenate(M, Vmlo).ZeroExtend<Vec>();
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = Q ? 128 : 64;
const size_t elements = datasize / esize;
const size_t index = concatenate(H, L).ZeroExtend();
const IR::U128 operand1 = v.V(datasize, Vn);
const IR::U128 operand2 = v.V(128, Vm);
IR::U128 result = v.V(datasize, Vd);
for (size_t i = 0; i < elements; i++) {
IR::U32 res_element = v.ir.Imm32(0);
for (size_t j = 0; j < 4; j++) {
const IR::U32 elem1 = (v.ir.*extension)(v.ir.VectorGetElement(8, operand1, 4 * i + j));
const IR::U32 elem2 = (v.ir.*extension)(v.ir.VectorGetElement(8, operand2, 4 * index + j));
res_element = v.ir.Add(res_element, v.ir.Mul(elem1, elem2));
}
res_element = v.ir.Add(v.ir.VectorGetElement(32, result, i), res_element);
result = v.ir.VectorSetElement(32, result, i, res_element);
}
v.V(datasize, Vd, result);
return true;
}
} // Anonymous namespace
bool TranslatorVisitor::MLA_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
@ -112,4 +147,12 @@ bool TranslatorVisitor::FMUL_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> V
return FPMultiplyByElement(*this, Q, sz, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::None);
}
bool TranslatorVisitor::SDOT_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
return DotProduct(*this, Q, size, L, M, Vmlo, H, Vn, Vd, &IREmitter::SignExtendToWord);
}
bool TranslatorVisitor::UDOT_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
return DotProduct(*this, Q, size, L, M, Vmlo, H, Vn, Vd, &IREmitter::ZeroExtendToWord);
}
} // namespace Dynarmic::A64