Mirrors/yuzu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

glasm: Initial GLASM fp64 support

Browse source
This commit is contained in:
ReinUsesLisp 2021-05-09 18:03:01 -03:00 • committed by ameerj
parent 9f851e3832
commit 4502595bc2
9 changed files with 152 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

66
src/shader_recompiler/backend/glasm/reg_alloc.cpp
View file

@ -14,12 +14,11 @@
namespace Shader::Backend::GLASM {
Register RegAlloc::Define(IR::Inst& inst) {
const Id id{Alloc()};
inst.SetDefinition<Id>(id);
Register ret;
ret.type = Type::Register;
ret.id = id;
return ret;
return Define(inst, false);
}
Register RegAlloc::LongDefine(IR::Inst& inst) {
return Define(inst, true);
}
Value RegAlloc::Consume(const IR::Value& value) {
@ -40,6 +39,10 @@ Value RegAlloc::Consume(const IR::Value& value) {
ret.type = Type::F32;
ret.imm_f32 = value.F32();
break;
case IR::Type::F64:
ret.type = Type::F64;
ret.imm_f64 = value.F64();
break;
default:
throw NotImplementedException("Immediate type {}", value.Type());
}
@ -49,7 +52,14 @@ Value RegAlloc::Consume(const IR::Value& value) {
Register RegAlloc::AllocReg() {
Register ret;
ret.type = Type::Register;
ret.id = Alloc();
ret.id = Alloc(false);
return ret;
}
Register RegAlloc::AllocLongReg() {
Register ret;
ret.type = Type::Register;
ret.id = Alloc(true);
return ret;
}
@ -57,6 +67,15 @@ void RegAlloc::FreeReg(Register reg) {
Free(reg.id);
}
Register RegAlloc::Define(IR::Inst& inst, bool is_long) {
const Id id{Alloc(is_long)};
inst.SetDefinition<Id>(id);
Register ret;
ret.type = Type::Register;
ret.id = id;
return ret;
}
Value RegAlloc::Consume(IR::Inst& inst) {
const Id id{inst.Definition<Id>()};
inst.DestructiveRemoveUsage();
@ -69,18 +88,23 @@ Value RegAlloc::Consume(IR::Inst& inst) {
return ret;
}
Id RegAlloc::Alloc() {
for (size_t reg = 0; reg < NUM_REGS; ++reg) {
if (register_use[reg]) {
continue;
Id RegAlloc::Alloc(bool is_long) {
size_t& num_regs{is_long ? num_used_long_registers : num_used_registers};
std::bitset<NUM_REGS>& use{is_long ? long_register_use : register_use};
if (num_used_registers + num_used_long_registers < NUM_REGS) {
for (size_t reg = 0; reg < NUM_REGS; ++reg) {
if (use[reg]) {
continue;
}
num_regs = std::max(num_regs, reg + 1);
use[reg] = true;
Id ret{};
ret.index.Assign(static_cast<u32>(reg));
ret.is_long.Assign(is_long ? 1 : 0);
ret.is_spill.Assign(0);
ret.is_condition_code.Assign(0);
return ret;
}
num_used_registers = std::max(num_used_registers, reg + 1);
register_use[reg] = true;
Id ret{};
ret.index.Assign(static_cast<u32>(reg));
ret.is_spill.Assign(0);
ret.is_condition_code.Assign(0);
return ret;
}
throw NotImplementedException("Register spilling");
}
@ -89,7 +113,11 @@ void RegAlloc::Free(Id id) {
if (id.is_spill != 0) {
throw NotImplementedException("Free spill");
}
register_use[id.index] = false;
if (id.is_long != 0) {
long_register_use[id.index] = false;
} else {
register_use[id.index] = false;
}
}
} // namespace Shader::Backend::GLASM