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Attempting to inline a lot of MMIO operations. Works for GPU stuff mainly.

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This commit is contained in:
Ben Vanik
2015-06-02 20:15:43 -07:00
parent 6618bcf2db
commit 40a6a12800
15 changed files with 199 additions and 22 deletions
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45
src/xenia/cpu/compiler/passes/constant_propagation_pass.cc
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@@ -174,6 +174,51 @@ bool ConstantPropagationPass::Run(HIRBuilder* builder) {
}
break;
case OPCODE_LOAD:
if (i->src1.value->IsConstant()) {
auto memory = processor_->memory();
auto address = i->src1.value->constant.i32;
auto mmio_range =
processor_->memory()->LookupVirtualMappedRange(address);
if (mmio_range) {
i->Replace(&OPCODE_LOAD_MMIO_info, 0);
i->src1.offset = reinterpret_cast<uint64_t>(mmio_range);
i->src2.offset = address;
} else {
auto heap = memory->LookupHeap(address);
uint32_t protect;
if (heap->QueryProtect(address, &protect) &&
!(protect & kMemoryProtectWrite)) {
// Memory is readonly - can just return the value.
switch (v->type) {
case INT32_TYPE:
v->set_constant(xe::load_and_swap<uint32_t>(
memory->TranslateVirtual(address)));
break;
default:
assert_unhandled_case(v->type);
break;
}
i->Remove();
}
}
}
break;
case OPCODE_STORE:
if (i->src1.value->IsConstant()) {
auto address = i->src1.value->constant.i32;
auto mmio_range =
processor_->memory()->LookupVirtualMappedRange(address);
if (mmio_range) {
auto value = i->src2.value;
i->Replace(&OPCODE_STORE_MMIO_info, 0);
i->src1.offset = reinterpret_cast<uint64_t>(mmio_range);
i->src2.offset = address;
i->set_src3(value);
}
}
break;
case OPCODE_SELECT:
if (i->src1.value->IsConstant()) {
if (i->src1.value->IsConstantTrue()) {