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A64: Implement FMAXP, FMINP, FMAXNMP and FMINNMP's scalar double/single-precision variant

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Lioncash 2018-07-23 15:34:00 -04:00 committed by MerryMage
parent 66bb05fc0a
commit ace7d2ba50
2 changed files with 55 additions and 8 deletions
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8
src/frontend/A64/decoder/a64.inc
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@ -425,15 +425,15 @@ INST(NEG_1, "NEG (vector)", "01111
// Data Processing - FP and SIMD - SIMD Scalar pairwise
INST(ADDP_pair, "ADDP (scalar)", "01011110zz110001101110nnnnnddddd")
//INST(FMAXNMP_pair_1, "FMAXNMP (scalar)", "0101111000110000110010nnnnnddddd")
//INST(FMAXNMP_pair_2, "FMAXNMP (scalar)", "011111100z110000110010nnnnnddddd")
INST(FMAXNMP_pair_2, "FMAXNMP (scalar)", "011111100z110000110010nnnnnddddd")
//INST(FADDP_pair_1, "FADDP (scalar)", "0101111000110000110110nnnnnddddd")
INST(FADDP_pair_2, "FADDP (scalar)", "011111100z110000110110nnnnnddddd")
//INST(FMAXP_pair_1, "FMAXP (scalar)", "0101111000110000111110nnnnnddddd")
//INST(FMAXP_pair_2, "FMAXP (scalar)", "011111100z110000111110nnnnnddddd")
INST(FMAXP_pair_2, "FMAXP (scalar)", "011111100z110000111110nnnnnddddd")
//INST(FMINNMP_pair_1, "FMINNMP (scalar)", "0101111010110000110010nnnnnddddd")
//INST(FMINNMP_pair_2, "FMINNMP (scalar)", "011111101z110000110010nnnnnddddd")
INST(FMINNMP_pair_2, "FMINNMP (scalar)", "011111101z110000110010nnnnnddddd")
//INST(FMINP_pair_1, "FMINP (scalar)", "0101111010110000111110nnnnnddddd")
//INST(FMINP_pair_2, "FMINP (scalar)", "011111101z110000111110nnnnnddddd")
INST(FMINP_pair_2, "FMINP (scalar)", "011111101z110000111110nnnnnddddd")
// Data Processing - FP and SIMD - SIMD Scalar three different
//INST(SQDMLAL_vec_1, "SQDMLAL, SQDMLAL2 (vector)", "01011110zz1mmmmm100100nnnnnddddd")

55
src/frontend/A64/translate/impl/simd_scalar_pairwise.cpp
View file

@ -6,8 +6,41 @@
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic {
namespace A64 {
namespace Dynarmic::A64 {
namespace {
enum class MinMaxOperation {
Max,
MaxNumeric,
Min,
MinNumeric,
};
bool FPPairwiseMinMax(TranslatorVisitor& v, bool sz, Vec Vn, Vec Vd, MinMaxOperation operation) {
const size_t esize = sz ? 64 : 32;
const IR::U128 operand = v.V(128, Vn);
const IR::U32U64 element1 = v.ir.VectorGetElement(esize, operand, 0);
const IR::U32U64 element2 = v.ir.VectorGetElement(esize, operand, 1);
const IR::U32U64 result = [&] {
switch (operation) {
case MinMaxOperation::Max:
return v.ir.FPMax(element1, element2, true);
case MinMaxOperation::MaxNumeric:
return v.ir.FPMaxNumeric(element1, element2, true);
case MinMaxOperation::Min:
return v.ir.FPMin(element1, element2, true);
case MinMaxOperation::MinNumeric:
return v.ir.FPMinNumeric(element1, element2, true);
default:
UNREACHABLE();
return IR::U32U64{};
}
}();
v.V(128, Vd, v.ir.ZeroExtendToQuad(result));
return true;
}
} // Anonymous namespace
bool TranslatorVisitor::ADDP_pair(Imm<2> size, Vec Vn, Vec Vd) {
if (size != 0b11) {
@ -31,5 +64,19 @@ bool TranslatorVisitor::FADDP_pair_2(bool size, Vec Vn, Vec Vd) {
return true;
}
} // namespace A64
} // namespace Dynarmic
bool TranslatorVisitor::FMAXNMP_pair_2(bool sz, Vec Vn, Vec Vd) {
return FPPairwiseMinMax(*this, sz, Vn, Vd, MinMaxOperation::MaxNumeric);
}
bool TranslatorVisitor::FMAXP_pair_2(bool sz, Vec Vn, Vec Vd) {
return FPPairwiseMinMax(*this, sz, Vn, Vd, MinMaxOperation::Max);
}
bool TranslatorVisitor::FMINNMP_pair_2(bool sz, Vec Vn, Vec Vd) {
return FPPairwiseMinMax(*this, sz, Vn, Vd, MinMaxOperation::MinNumeric);
}
bool TranslatorVisitor::FMINP_pair_2(bool sz, Vec Vn, Vec Vd) {
return FPPairwiseMinMax(*this, sz, Vn, Vd, MinMaxOperation::Min);
}
} // namespace Dynarmic::A64