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This commit is contained in:
Liam 2022-11-13 14:24:29 -05:00
parent cdd658935c
commit e6949a86a2
6 changed files with 124 additions and 5 deletions
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1
src/dynarmic/backend/arm64/a32_address_space.cpp
View file

@ -308,6 +308,7 @@ EmittedBlockInfo A32AddressSpace::Emit(IR::Block block) {
.cntfreq_el0{},
.dczid_el0{},
.ctr_el0{},
.is_a64 = false,
.hook_isb = conf.hook_isb,
.enable_cycle_counting = conf.enable_cycle_counting,
.always_little_endian = conf.always_little_endian,

1
src/dynarmic/backend/arm64/a64_address_space.cpp
View file

@ -321,6 +321,7 @@ EmittedBlockInfo A64AddressSpace::Emit(IR::Block block) {
.cntfreq_el0 = conf.cntfrq_el0,
.dczid_el0 = conf.dczid_el0,
.ctr_el0 = conf.ctr_el0,
.is_a64 = true,
.hook_isb = conf.hook_isb,
.enable_cycle_counting = conf.enable_cycle_counting,
.always_little_endian = true,

14
src/dynarmic/backend/arm64/emit_arm64.cpp
View file

@ -164,10 +164,18 @@ EmittedBlockInfo EmitArm64(oaknut::CodeGenerator& code, IR::Block block, const E
ASSERT(!ctx.block.HasConditionFailedLocation());
} else {
ASSERT(ctx.block.HasConditionFailedLocation());
oaknut::Label pass;
oaknut::Label pass = EmitA32Cond(code, ctx, ctx.block.GetCondition());
if (conf.is_a64) {
pass = EmitA64Cond(code, ctx, ctx.block.GetCondition());
EmitAddCycles(code, ctx, ctx.block.ConditionFailedCycleCount());
EmitA64ConditionFailedTerminal(code, ctx);
} else {
pass = EmitA32Cond(code, ctx, ctx.block.GetCondition());
EmitAddCycles(code, ctx, ctx.block.ConditionFailedCycleCount());
EmitA32ConditionFailedTerminal(code, ctx);
}
code.l(pass);
}
@ -205,7 +213,11 @@ EmittedBlockInfo EmitArm64(oaknut::CodeGenerator& code, IR::Block block, const E
reg_alloc.AssertNoMoreUses();
EmitAddCycles(code, ctx, block.CycleCount());
if (conf.is_a64) {
EmitA64Terminal(code, ctx);
} else {
EmitA32Terminal(code, ctx);
}
ebi.size = code.ptr<CodePtr>() - ebi.entry_point;
return ebi;

4
src/dynarmic/backend/arm64/emit_arm64.h
View file

@ -95,6 +95,7 @@ struct EmitConfig {
u64 cntfreq_el0;
u32 dczid_el0;
u32 ctr_el0;
bool is_a64;
bool hook_isb;
bool enable_cycle_counting;
bool always_little_endian;
@ -120,7 +121,10 @@ void EmitIR(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst);
void EmitRelocation(oaknut::CodeGenerator& code, EmitContext& ctx, LinkTarget link_target);
void EmitBlockLinkRelocation(oaknut::CodeGenerator& code, EmitContext& ctx, const IR::LocationDescriptor& descriptor);
oaknut::Label EmitA32Cond(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Cond cond);
oaknut::Label EmitA64Cond(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Cond cond);
void EmitA32Terminal(oaknut::CodeGenerator& code, EmitContext& ctx);
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx);
void EmitA32ConditionFailedTerminal(oaknut::CodeGenerator& code, EmitContext& ctx);
void EmitA64ConditionFailedTerminal(oaknut::CodeGenerator& code, EmitContext& ctx);
} // namespace Dynarmic::Backend::Arm64

2
src/dynarmic/backend/arm64/emit_arm64_a32.cpp
View file

@ -41,7 +41,7 @@ void EmitA32Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::Re
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
}
void EmitSetUpperLocationDescriptor(oaknut::CodeGenerator& code, EmitContext& ctx, IR::LocationDescriptor new_location, IR::LocationDescriptor old_location) {
static void EmitSetUpperLocationDescriptor(oaknut::CodeGenerator& code, EmitContext& ctx, IR::LocationDescriptor new_location, IR::LocationDescriptor old_location) {
auto get_upper = [](const IR::LocationDescriptor& desc) -> u32 {
return static_cast<u32>(A32::LocationDescriptor{desc}.SetSingleStepping(false).UniqueHash() >> 32);
};

101
src/dynarmic/backend/arm64/emit_arm64_a64.cpp
View file

@ -21,6 +21,107 @@ using namespace oaknut::util;
static constexpr int nzcv_c_flag_shift = 29;
oaknut::Label EmitA64Cond(oaknut::CodeGenerator& code, EmitContext&, IR::Cond cond) {
oaknut::Label pass;
// TODO: Flags in host flags
code.LDR(Wscratch0, Xstate, offsetof(A64JitState, cpsr_nzcv));
code.MSR(oaknut::SystemReg::NZCV, Xscratch0);
code.B(static_cast<oaknut::Cond>(cond), pass);
return pass;
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::Terminal terminal, IR::LocationDescriptor initial_location, bool is_single_step);
void EmitA64Terminal(oaknut::CodeGenerator&, EmitContext&, IR::Term::Interpret, IR::LocationDescriptor, bool) {
ASSERT_FALSE("Interpret should never be emitted.");
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::ReturnToDispatch, IR::LocationDescriptor, bool) {
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::LinkBlock terminal, IR::LocationDescriptor, bool is_single_step) {
oaknut::Label fail;
if (ctx.conf.HasOptimization(OptimizationFlag::BlockLinking) && !is_single_step) {
if (ctx.conf.enable_cycle_counting) {
code.CMP(Xticks, 0);
code.B(LE, fail);
EmitBlockLinkRelocation(code, ctx, terminal.next);
} else {
code.LDAR(Wscratch0, Xhalt);
code.CBNZ(Wscratch0, fail);
EmitBlockLinkRelocation(code, ctx, terminal.next);
}
}
code.l(fail);
code.MOV(Xscratch0, A64::LocationDescriptor{terminal.next}.PC());
code.STR(Xscratch0, Xstate, offsetof(A64JitState, pc));
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::LinkBlockFast terminal, IR::LocationDescriptor, bool is_single_step) {
if (ctx.conf.HasOptimization(OptimizationFlag::BlockLinking) && !is_single_step) {
EmitBlockLinkRelocation(code, ctx, terminal.next);
}
code.MOV(Wscratch0, A64::LocationDescriptor{terminal.next}.PC());
code.STR(Wscratch0, Xstate, offsetof(A64JitState, pc));
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::PopRSBHint, IR::LocationDescriptor, bool) {
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
// TODO: Implement PopRSBHint optimization
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::FastDispatchHint, IR::LocationDescriptor, bool) {
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
// TODO: Implement FastDispatchHint optimization
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::If terminal, IR::LocationDescriptor initial_location, bool is_single_step) {
oaknut::Label pass = EmitA64Cond(code, ctx, terminal.if_);
EmitA64Terminal(code, ctx, terminal.else_, initial_location, is_single_step);
code.l(pass);
EmitA64Terminal(code, ctx, terminal.then_, initial_location, is_single_step);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::CheckBit terminal, IR::LocationDescriptor initial_location, bool is_single_step) {
oaknut::Label fail;
code.LDRB(Wscratch0, SP, offsetof(StackLayout, check_bit));
code.CBZ(Wscratch0, fail);
EmitA64Terminal(code, ctx, terminal.then_, initial_location, is_single_step);
code.l(fail);
EmitA64Terminal(code, ctx, terminal.else_, initial_location, is_single_step);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::CheckHalt terminal, IR::LocationDescriptor initial_location, bool is_single_step) {
oaknut::Label fail;
code.LDAR(Wscratch0, Xhalt);
code.CBNZ(Wscratch0, fail);
EmitA64Terminal(code, ctx, terminal.else_, initial_location, is_single_step);
code.l(fail);
EmitRelocation(code, ctx, LinkTarget::ReturnToDispatcher);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Term::Terminal terminal, IR::LocationDescriptor initial_location, bool is_single_step) {
boost::apply_visitor([&](const auto& t) { EmitA64Terminal(code, ctx, t, initial_location, is_single_step); }, terminal);
}
void EmitA64Terminal(oaknut::CodeGenerator& code, EmitContext& ctx) {
const A64::LocationDescriptor location{ctx.block.Location()};
EmitA64Terminal(code, ctx, ctx.block.GetTerminal(), location.SetSingleStepping(false), location.SingleStepping());
}
void EmitA64ConditionFailedTerminal(oaknut::CodeGenerator& code, EmitContext& ctx) {
const A64::LocationDescriptor location{ctx.block.Location()};
EmitA64Terminal(code, ctx, IR::Term::LinkBlock{ctx.block.ConditionFailedLocation()}, location.SetSingleStepping(false), location.SingleStepping());
}
template<>
void EmitIR<IR::Opcode::A64SetCheckBit>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);