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EmitX64: remove emit_fns map, use a switch statement instead

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This commit is contained in:
MerryMage 2016-07-08 15:28:56 +08:00
parent 421ab344ad
commit e93fb0ba2b
1 changed files with 15 additions and 9 deletions
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24
src/backend_x64/emit_x64.cpp
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@ -29,13 +29,6 @@ static OpArg MJitStateCpsr() {
return MDisp(R15, offsetof(JitState, Cpsr)); return MDisp(R15, offsetof(JitState, Cpsr));
} }
// Mapping from opcode to Emit* member function.
const static std::map<IR::Opcode, void (EmitX64::*)(IR::Value*)> emit_fns {
#define OPCODE(name, type, ...) { IR::Opcode::name, &EmitX64::Emit##name },
#include "frontend/ir/opcodes.inc"
#undef OPCODE
};
static IR::Inst* FindUseWithOpcode(IR::Inst* inst, IR::Opcode opcode) { static IR::Inst* FindUseWithOpcode(IR::Inst* inst, IR::Opcode opcode) {
// Gets first found use. // Gets first found use.
auto uses = inst->GetUses(); auto uses = inst->GetUses();
@ -50,12 +43,25 @@ CodePtr EmitX64::Emit(Arm::LocationDescriptor descriptor, Dynarmic::IR::Block bl
code->INT3(); code->INT3();
CodePtr code_ptr = code->GetCodePtr(); CodePtr code_ptr = code->GetCodePtr();
// Call Emit* member function for each instruction.
for (const auto& value : block.instructions) { for (const auto& value : block.instructions) {
if (inhibit_emission.count(value.get()) != 0) if (inhibit_emission.count(value.get()) != 0)
continue; continue;
(this->*emit_fns.at(value->GetOpcode()))(value.get()); // Call the relevant Emit* member function.
switch (value->GetOpcode()) {
#define OPCODE(name, type, ...) \
case IR::Opcode::name: \
EmitX64::Emit##name(value.get()); \
break;
#include "frontend/ir/opcodes.inc"
#undef OPCODE
default:
ASSERT_MSG(false, "Invalid opcode %zu", static_cast<size_t>(value->GetOpcode()));
break;
}
reg_alloc.EndOfAllocScope(); reg_alloc.EndOfAllocScope();
} }