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A32: Implement ASIMD VRECPS

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This commit is contained in:
MerryMage 2020-06-20 14:39:05 +01:00
parent 9eef4f7471
commit 8f506c80c3
7 changed files with 23 additions and 13 deletions
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7
src/backend/x64/emit_x64_vector_floating_point.cpp
View file

@ -1176,6 +1176,7 @@ static void EmitRecipStepFused(BlockOfCode& code, EmitContext& ctx, IR::Inst* in
if constexpr (fsize != 16) {
if (code.HasFMA() && code.HasAVX()) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const bool fpcr_controlled = args[2].GetImmediateU1();
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
const Xbyak::Xmm operand1 = ctx.reg_alloc.UseXmm(args[0]);
@ -1184,8 +1185,10 @@ static void EmitRecipStepFused(BlockOfCode& code, EmitContext& ctx, IR::Inst* in
Xbyak::Label end, fallback;
MaybeStandardFPSCRValue(code, ctx, fpcr_controlled, [&]{
code.movaps(result, GetVectorOf<fsize, false, 0, 2>(code));
FCODE(vfnmadd231p)(result, operand1, operand2);
});
FCODE(vcmpunordp)(tmp, result, result);
code.vptest(tmp, tmp);
@ -1196,7 +1199,7 @@ static void EmitRecipStepFused(BlockOfCode& code, EmitContext& ctx, IR::Inst* in
code.L(fallback);
code.sub(rsp, 8);
ABI_PushCallerSaveRegistersAndAdjustStackExcept(code, HostLocXmmIdx(result.getIdx()));
EmitThreeOpFallbackWithoutRegAlloc(code, ctx, result, operand1, operand2, fallback_fn);
EmitThreeOpFallbackWithoutRegAlloc(code, ctx, result, operand1, operand2, fallback_fn, fpcr_controlled);
ABI_PopCallerSaveRegistersAndAdjustStackExcept(code, HostLocXmmIdx(result.getIdx()));
code.add(rsp, 8);
code.jmp(end, code.T_NEAR);
@ -1207,7 +1210,7 @@ static void EmitRecipStepFused(BlockOfCode& code, EmitContext& ctx, IR::Inst* in
}
}
EmitThreeOpFallback(code, ctx, inst, fallback_fn);
EmitThreeOpFallback<FpcrControlledArgument::Present>(code, ctx, inst, fallback_fn);
}
void EmitX64::EmitFPVectorRecipStepFused16(EmitContext& ctx, IR::Inst* inst) {

2
src/frontend/A32/decoder/asimd.inc
View file

@ -46,7 +46,7 @@ INST(asimd_VMUL_float, "VMUL (floating-point)", "111100110D0znnnndddd110
//INST(asimd_VACGE, "VACGE", "111100110-CC--------1110---1----") // ASIMD
INST(asimd_VMAX_float, "VMAX (floating-point)", "111100100D0znnnndddd1111NQM0mmmm") // ASIMD
INST(asimd_VMIN_float, "VMIN (floating-point)", "111100100D1znnnndddd1111NQM0mmmm") // ASIMD
//INST(asimd_VRECPS, "VRECPS", "111100100-0C--------1111---1----") // ASIMD
INST(asimd_VRECPS, "VRECPS", "111100100D0znnnndddd1111NQM1mmmm") // ASIMD
//INST(asimd_VRSQRTS, "VRSQRTS", "111100100-1C--------1111---1----") // ASIMD
// Two registers and a scalar

6
src/frontend/A32/translate/impl/asimd_three_same.cpp
View file

@ -413,4 +413,10 @@ bool ArmTranslatorVisitor::asimd_VMIN_float(bool D, bool sz, size_t Vn, size_t V
});
}
bool ArmTranslatorVisitor::asimd_VRECPS(bool D, bool sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) {
return FloatingPointInstruction(*this, D, sz, Vn, Vd, N, Q, M, Vm, [this](const auto&, const auto& reg_n, const auto& reg_m) {
return ir.FPVectorRecipStepFused(32, reg_n, reg_m, false);
});
}
} // namespace Dynarmic::A32

1
src/frontend/A32/translate/impl/translate_arm.h
View file

@ -471,6 +471,7 @@ struct ArmTranslatorVisitor final {
bool asimd_VMUL_float(bool D, bool sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VMAX_float(bool D, bool sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VMIN_float(bool D, bool sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VRECPS(bool D, bool sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
// Two registers and a shift amount
bool asimd_SHR(bool U, bool D, size_t imm6, size_t Vd, bool L, bool Q, bool M, size_t Vm);

8
src/frontend/ir/ir_emitter.cpp
View file

@ -2452,14 +2452,14 @@ U128 IREmitter::FPVectorRecipEstimate(size_t esize, const U128& a) {
UNREACHABLE();
}
U128 IREmitter::FPVectorRecipStepFused(size_t esize, const U128& a, const U128& b) {
U128 IREmitter::FPVectorRecipStepFused(size_t esize, const U128& a, const U128& b, bool fpcr_controlled) {
switch (esize) {
case 16:
return Inst<U128>(Opcode::FPVectorRecipStepFused16, a, b);
return Inst<U128>(Opcode::FPVectorRecipStepFused16, a, b, Imm1(fpcr_controlled));
case 32:
return Inst<U128>(Opcode::FPVectorRecipStepFused32, a, b);
return Inst<U128>(Opcode::FPVectorRecipStepFused32, a, b, Imm1(fpcr_controlled));
case 64:
return Inst<U128>(Opcode::FPVectorRecipStepFused64, a, b);
return Inst<U128>(Opcode::FPVectorRecipStepFused64, a, b, Imm1(fpcr_controlled));
}
UNREACHABLE();
}

2
src/frontend/ir/ir_emitter.h
View file

@ -361,7 +361,7 @@ public:
U128 FPVectorPairedAdd(size_t esize, const U128& a, const U128& b, bool fpcr_controlled = true);
U128 FPVectorPairedAddLower(size_t esize, const U128& a, const U128& b, bool fpcr_controlled = true);
U128 FPVectorRecipEstimate(size_t esize, const U128& a);
U128 FPVectorRecipStepFused(size_t esize, const U128& a, const U128& b);
U128 FPVectorRecipStepFused(size_t esize, const U128& a, const U128& b, bool fpcr_controlled = true);
U128 FPVectorRoundInt(size_t esize, const U128& operand, FP::RoundingMode rounding, bool exact);
U128 FPVectorRSqrtEstimate(size_t esize, const U128& a);
U128 FPVectorRSqrtStepFused(size_t esize, const U128& a, const U128& b);

6
src/frontend/ir/opcodes.inc
View file

@ -616,9 +616,9 @@ OPCODE(FPVectorPairedAddLower64, U128, U128
OPCODE(FPVectorRecipEstimate16, U128, U128 )
OPCODE(FPVectorRecipEstimate32, U128, U128 )
OPCODE(FPVectorRecipEstimate64, U128, U128 )
OPCODE(FPVectorRecipStepFused16, U128, U128, U128 )
OPCODE(FPVectorRecipStepFused32, U128, U128, U128 )
OPCODE(FPVectorRecipStepFused64, U128, U128, U128 )
OPCODE(FPVectorRecipStepFused16, U128, U128, U128, U1 )
OPCODE(FPVectorRecipStepFused32, U128, U128, U128, U1 )
OPCODE(FPVectorRecipStepFused64, U128, U128, U128, U1 )
OPCODE(FPVectorRoundInt16, U128, U128, U8, U1 )
OPCODE(FPVectorRoundInt32, U128, U128, U8, U1 )
OPCODE(FPVectorRoundInt64, U128, U128, U8, U1 )