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emit_arm64_data_processing: Implement ConditionalSelect

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Merry 2022-08-02 00:38:17 +01:00 committed by merry
parent a4a665148c
commit 2cc5b09bdf
1 changed files with 27 additions and 12 deletions
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39
src/dynarmic/backend/arm64/emit_arm64_data_processing.cpp
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@ -197,26 +197,41 @@ void EmitIR<IR::Opcode::TestBit>(oaknut::CodeGenerator& code, EmitContext& ctx,
template<> template<>
void EmitIR<IR::Opcode::ConditionalSelect32>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) { void EmitIR<IR::Opcode::ConditionalSelect32>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
(void)code; auto args = ctx.reg_alloc.GetArgumentInfo(inst);
(void)ctx; const IR::Cond cond = args[0].GetImmediateCond();
(void)inst; auto Wresult = ctx.reg_alloc.WriteW(inst);
ASSERT_FALSE("Unimplemented"); auto Wthen = ctx.reg_alloc.ReadW(args[1]);
auto Welse = ctx.reg_alloc.ReadW(args[2]);
RegAlloc::Realize(Wresult, Wthen, Welse);
ctx.reg_alloc.SpillFlags();
// TODO: FSEL for fprs
code.LDR(Wscratch0, Xstate, ctx.conf.state_nzcv_offset);
code.MSR(oaknut::SystemReg::NZCV, Xscratch0);
code.CSEL(Wresult, Wthen, Welse, static_cast<oaknut::Cond>(cond));
} }
template<> template<>
void EmitIR<IR::Opcode::ConditionalSelect64>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) { void EmitIR<IR::Opcode::ConditionalSelect64>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
(void)code; auto args = ctx.reg_alloc.GetArgumentInfo(inst);
(void)ctx; const IR::Cond cond = args[0].GetImmediateCond();
(void)inst; auto Xresult = ctx.reg_alloc.WriteX(inst);
ASSERT_FALSE("Unimplemented"); auto Xthen = ctx.reg_alloc.ReadX(args[1]);
auto Xelse = ctx.reg_alloc.ReadX(args[2]);
RegAlloc::Realize(Xresult, Xthen, Xelse);
ctx.reg_alloc.SpillFlags();
// TODO: FSEL for fprs
code.LDR(Wscratch0, Xstate, ctx.conf.state_nzcv_offset);
code.MSR(oaknut::SystemReg::NZCV, Xscratch0);
code.CSEL(Xresult, Xthen, Xelse, static_cast<oaknut::Cond>(cond));
} }
template<> template<>
void EmitIR<IR::Opcode::ConditionalSelectNZCV>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) { void EmitIR<IR::Opcode::ConditionalSelectNZCV>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
(void)code; EmitIR<IR::Opcode::ConditionalSelect32>(code, ctx, inst);
(void)ctx;
(void)inst;
ASSERT_FALSE("Unimplemented");
} }
template<> template<>