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A64: Implement MLA, MLS (by element), vector single/double variant

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This commit is contained in:
MerryMage 2018-07-25 13:54:48 +01:00
parent 0de37b11ad
commit 642b6c31d2
3 changed files with 51 additions and 24 deletions
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4
src/frontend/A64/decoder/a64.inc
View file

@ -831,9 +831,9 @@ INST(MUL_elt, "MUL (by element)", "0Q001
//INST(SQRDMULH_elt_2, "SQRDMULH (by element)", "0Q001111zzLMmmmm1101H0nnnnnddddd")
//INST(SDOT_elt, "SDOT (by element)", "0Q001111zzLMmmmm1110H0nnnnnddddd")
//INST(FMLA_elt_3, "FMLA (by element)", "0Q00111100LMmmmm0001H0nnnnnddddd")
//INST(FMLA_elt_4, "FMLA (by element)", "0Q0011111zLMmmmm0001H0nnnnnddddd")
INST(FMLA_elt_4, "FMLA (by element)", "0Q0011111zLMmmmm0001H0nnnnnddddd")
//INST(FMLS_elt_3, "FMLS (by element)", "0Q00111100LMmmmm0101H0nnnnnddddd")
//INST(FMLS_elt_4, "FMLS (by element)", "0Q0011111zLMmmmm0101H0nnnnnddddd")
INST(FMLS_elt_4, "FMLS (by element)", "0Q0011111zLMmmmm0101H0nnnnnddddd")
//INST(FMUL_elt_3, "FMUL (by element)", "0Q00111100LMmmmm1001H0nnnnnddddd")
INST(FMUL_elt_4, "FMUL (by element)", "0Q0011111zLMmmmm1001H0nnnnnddddd")
//INST(FMLAL_elt_1, "FMLAL, FMLAL2 (by element)", "0Q0011111zLMmmmm0000H0nnnnnddddd")

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

@ -900,9 +900,9 @@ struct TranslatorVisitor final {
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 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, 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);
bool FMLS_elt_4(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMLS_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool FMUL_elt_3(bool Q, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);
bool FMUL_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd);
bool FMLAL_elt_1(bool Q, bool sz, bool L, bool M, Vec Vm, bool H, Vec Vn, Vec Vd);

67
src/frontend/A64/translate/impl/simd_vector_x_indexed_element.cpp
View file

@ -5,6 +5,7 @@
*/
#include <utility>
#include "common/assert.h"
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic::A64 {
@ -48,6 +49,43 @@ bool MultiplyByElement(TranslatorVisitor& v, bool Q, Imm<2> size, Imm<1> L, Imm<
v.V(datasize, Vd, result);
return true;
}
bool FPMultiplyByElement(TranslatorVisitor& v, bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd,
ExtraBehavior extra_behavior) {
if (sz && L == 1) {
return v.UnallocatedEncoding();
}
if (sz && !Q) {
return v.ReservedValue();
}
const size_t idxdsize = H == 1 ? 128 : 64;
const size_t index = sz ? H.ZeroExtend() : concatenate(H, L).ZeroExtend();
const Vec Vm = concatenate(M, Vmlo).ZeroExtend<Vec>();
const size_t esize = sz ? 64 : 32;
const size_t datasize = Q ? 128 : 64;
const IR::UAny element2 = v.ir.VectorGetElement(esize, v.V(idxdsize, Vm), index);
const IR::U128 operand1 = v.V(datasize, Vn);
const IR::U128 operand2 = Q ? v.ir.VectorBroadcast(esize, element2) : v.ir.VectorBroadcastLower(esize, element2);
const IR::U128 operand3 = v.V(datasize, Vd);
const IR::U128 result = [&]{
switch (extra_behavior) {
case ExtraBehavior::None:
return v.ir.FPVectorMul(esize, operand1, operand2);
case ExtraBehavior::Accumulate:
return v.ir.FPVectorMulAdd(esize, operand3, operand1, operand2);
case ExtraBehavior::Subtract:
return v.ir.FPVectorMulAdd(esize, operand3, v.ir.FPVectorNeg(esize, operand1), operand2);
}
UNREACHABLE();
return IR::U128{};
}();
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) {
@ -62,27 +100,16 @@ bool TranslatorVisitor::MUL_elt(bool Q, Imm<2> size, Imm<1> L, Imm<1> M, Imm<4>
return MultiplyByElement(*this, Q, size, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::None);
}
bool TranslatorVisitor::FMLA_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
return FPMultiplyByElement(*this, Q, sz, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::Accumulate);
}
bool TranslatorVisitor::FMLS_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
return FPMultiplyByElement(*this, Q, sz, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::Subtract);
}
bool TranslatorVisitor::FMUL_elt_4(bool Q, bool sz, Imm<1> L, Imm<1> M, Imm<4> Vmlo, Imm<1> H, Vec Vn, Vec Vd) {
if (sz && L == 1) {
return UnallocatedEncoding();
}
if (sz && !Q) {
return ReservedValue();
}
const size_t idxdsize = H == 1 ? 128 : 64;
const size_t index = sz ? H.ZeroExtend() : concatenate(H, L).ZeroExtend();
const Vec Vm = concatenate(M, Vmlo).ZeroExtend<Vec>();
const size_t esize = sz ? 64 : 32;
const size_t datasize = Q ? 128 : 64;
const IR::UAny element2 = ir.VectorGetElement(esize, V(idxdsize, Vm), index);
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = Q ? ir.VectorBroadcast(esize, element2) : ir.VectorBroadcastLower(esize, element2);
const IR::U128 result = ir.FPVectorMul(esize, operand1, operand2);
V(datasize, Vd, result);
return true;
return FPMultiplyByElement(*this, Q, sz, L, M, Vmlo, H, Vn, Vd, ExtraBehavior::None);
}
} // namespace Dynarmic::A64