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glsl: Rework variable allocator to allow for variable reuse

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This commit is contained in:
ameerj
2021-05-30 17:27:00 -04:00
parent 9ccbd74991
commit 1269a0cf8b
14 changed files with 482 additions and 353 deletions
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28
src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp
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@ -12,7 +12,7 @@ namespace Shader::Backend::GLSL {
void EmitLoadStorageU8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32("{}=bitfieldExtract(ssbo{}[{}/4],int({}%4)*8,8);", inst, binding.U32(), offset_var,
offset_var);
}
@ -20,7 +20,7 @@ void EmitLoadStorageU8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
void EmitLoadStorageS8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddS32("{}=bitfieldExtract(int(ssbo{}[{}/4]),int({}%4)*8,8);", inst, binding.U32(),
offset_var, offset_var);
}
@ -28,7 +28,7 @@ void EmitLoadStorageS8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
void EmitLoadStorageU16([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32("{}=bitfieldExtract(ssbo{}[{}/4],int(({}/2)%2)*16,16);", inst, binding.U32(),
offset_var, offset_var);
}
@ -36,27 +36,27 @@ void EmitLoadStorageU16([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
void EmitLoadStorageS16([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddS32("{}=bitfieldExtract(int(ssbo{}[{}/4]),int(({}/2)%2)*16,16);", inst, binding.U32(),
offset_var, offset_var);
}
void EmitLoadStorage32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32("{}=ssbo{}[{}/4];", inst, binding.U32(), offset_var);
}
void EmitLoadStorage64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32x2("{}=uvec2(ssbo{}[{}/4],ssbo{}[({}+4)/4]);", inst, binding.U32(), offset_var,
binding.U32(), offset_var);
}
void EmitLoadStorage128(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32x4("{}=uvec4(ssbo{}[{}/4],ssbo{}[({}+4)/4],ssbo{}[({}+8)/4],ssbo{}[({}+12)/4]);",
inst, binding.U32(), offset_var, binding.U32(), offset_var, binding.U32(),
offset_var, binding.U32(), offset_var);
@ -66,7 +66,7 @@ void EmitWriteStorageU8([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]=bitfieldInsert(ssbo{}[{}/4],{},int({}%4)*8,8);", binding.U32(),
offset_var, binding.U32(), offset_var, value, offset_var);
}
@ -75,7 +75,7 @@ void EmitWriteStorageS8([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]=bitfieldInsert(ssbo{}[{}/4],{},int({}%4)*8,8);", binding.U32(),
offset_var, binding.U32(), offset_var, value, offset_var);
}
@ -84,7 +84,7 @@ void EmitWriteStorageU16([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]=bitfieldInsert(ssbo{}[{}/4],{},int(({}/2)%2)*16,16);", binding.U32(),
offset_var, binding.U32(), offset_var, value, offset_var);
}
@ -93,20 +93,20 @@ void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]=bitfieldInsert(ssbo{}[{}/4],{},int(({}/2)%2)*16,16);", binding.U32(),
offset_var, binding.U32(), offset_var, value, offset_var);
}
void EmitWriteStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]={};", binding.U32(), offset_var, value);
}
void EmitWriteStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]={}.x;", binding.U32(), offset_var, value);
ctx.Add("ssbo{}[({}+4)/4]={}.y;", binding.U32(), offset_var, value);
}
@ -115,7 +115,7 @@ void EmitWriteStorage128([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("ssbo{}[{}/4]={}.x;", binding.U32(), offset_var, value);
ctx.Add("ssbo{}[({}+4)/4]={}.y;", binding.U32(), offset_var, value);
ctx.Add("ssbo{}[({}+8)/4]={}.z;", binding.U32(), offset_var, value);