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| author | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-05-21 02:00:12 -0400 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:35 -0400 |
| commit | e221baccddea3c0802c97e7f6f60c0c3e6a72b60 (patch) | |
| tree | 4a94c1d2b662b2d7ace703334c41c575fc644510 /src/shader_recompiler/backend/glsl/reg_alloc.cpp | |
| parent | faf4cd72c556421966782cece604b64fbafa5714 (diff) | |
glsl: Reusable typed variables. IADD32
Diffstat (limited to 'src/shader_recompiler/backend/glsl/reg_alloc.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/reg_alloc.cpp | 52 |
1 files changed, 34 insertions, 18 deletions
diff --git a/src/shader_recompiler/backend/glsl/reg_alloc.cpp b/src/shader_recompiler/backend/glsl/reg_alloc.cpp index 5fdad5acb1..5ad1872db9 100644 --- a/src/shader_recompiler/backend/glsl/reg_alloc.cpp +++ b/src/shader_recompiler/backend/glsl/reg_alloc.cpp @@ -13,7 +13,6 @@ #pragma optimize("", off) namespace Shader::Backend::GLSL { namespace { -constexpr std::string_view SWIZZLE = "xyzw"; std::string Representation(Id id) { if (id.is_condition_code != 0) { @@ -22,7 +21,6 @@ std::string Representation(Id id) { if (id.is_spill != 0) { throw NotImplementedException("Spilling"); } - const u32 num_elements{id.num_elements_minus_one + 1}; const u32 index{static_cast<u32>(id.index)}; return fmt::format("R{}", index); } @@ -45,10 +43,11 @@ std::string MakeImm(const IR::Value& value) { } } // Anonymous namespace -std::string RegAlloc::Define(IR::Inst& inst, u32 num_elements, u32 alignment) { - const Id id{Alloc(num_elements, alignment)}; +std::string RegAlloc::Define(IR::Inst& inst, Type type) { + const Id id{Alloc()}; + const auto type_str{GetType(type, id.index)}; inst.SetDefinition<Id>(id); - return Representation(id); + return type_str + Representation(id); } std::string RegAlloc::Consume(const IR::Value& value) { @@ -65,20 +64,37 @@ std::string RegAlloc::Consume(IR::Inst& inst) { return Representation(inst.Definition<Id>()); } -Id RegAlloc::Alloc(u32 num_elements, [[maybe_unused]] u32 alignment) { - for (size_t reg = 0; reg < NUM_REGS; ++reg) { - if (register_use[reg]) { - continue; +std::string RegAlloc::GetType(Type type, u32 index) { + if (register_defined[index]) { + return ""; + } + register_defined[index] = true; + switch (type) { + case Type::U32: + return "uint "; + case Type::S32: + return "int "; + case Type::F32: + return "float "; + default: + return ""; + } +} + +Id RegAlloc::Alloc() { + if (num_used_registers < NUM_REGS) { + for (size_t reg = 0; reg < NUM_REGS; ++reg) { + if (register_use[reg]) { + continue; + } + register_use[reg] = true; + Id ret{}; + ret.index.Assign(static_cast<u32>(reg)); + ret.is_long.Assign(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; - return Id{ - .base_element = 0, - .num_elements_minus_one = num_elements - 1, - .index = static_cast<u32>(reg), - .is_spill = 0, - .is_condition_code = 0, - }; } throw NotImplementedException("Register spilling"); } |