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glsl: SHFL fix and prefer shift operations over divide in glsl shader

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This commit is contained in:
ameerj
2021-05-31 00:25:54 -04:00
parent e10366974e
commit b7561226ed
5 changed files with 64 additions and 63 deletions
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43
src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp
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@ -13,7 +13,7 @@ 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.var_alloc.Consume(offset)};
ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}/4],int({}%4)*8,8);", inst, ctx.stage_name,
ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}>>2],int({}%4)*8,8);", inst, ctx.stage_name,
binding.U32(), offset_var, offset_var);
}
@ -21,7 +21,7 @@ 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.var_alloc.Consume(offset)};
ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}/4]),int({}%4)*8,8);", inst, ctx.stage_name,
ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}>>2]),int({}%4)*8,8);", inst, ctx.stage_name,
binding.U32(), offset_var, offset_var);
}
@ -29,7 +29,7 @@ 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.var_alloc.Consume(offset)};
ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}/4],int(({}/2)%2)*16,16);", inst, ctx.stage_name,
ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}>>2],int(({}>>1)%2)*16,16);", inst, ctx.stage_name,
binding.U32(), offset_var, offset_var);
}
@ -37,30 +37,31 @@ 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.var_alloc.Consume(offset)};
ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}/4]),int(({}/2)%2)*16,16);", inst,
ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}>>2]),int(({}>>1)%2)*16,16);", inst,
ctx.stage_name, 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.var_alloc.Consume(offset)};
ctx.AddU32("{}={}_ssbo{}[{}/4];", inst, ctx.stage_name, binding.U32(), offset_var);
ctx.AddU32("{}={}_ssbo{}[{}>>2];", inst, ctx.stage_name, binding.U32(), offset_var);
}
void EmitLoadStorage64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.AddU32x2("{}=uvec2({}_ssbo{}[{}/4],{}_ssbo{}[({}+4)/4]);", inst, ctx.stage_name,
ctx.AddU32x2("{}=uvec2({}_ssbo{}[{}>>2],{}_ssbo{}[({}+4)>>2]);", inst, ctx.stage_name,
binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var);
}
void EmitLoadStorage128(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& 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, ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var,
ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var);
ctx.AddU32x4("{}=uvec4({}_ssbo{}[{}>>2],{}_ssbo{}[({}+4)>>2],{}_ssbo{}[({}+8)>>2],{}_ssbo{}[({}"
"+12)>>2]);",
inst, ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(),
offset_var, ctx.stage_name, binding.U32(), offset_var, ctx.stage_name,
binding.U32(), offset_var);
}
void EmitWriteStorageU8([[maybe_unused]] EmitContext& ctx,
@ -68,7 +69,7 @@ void EmitWriteStorageU8([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]=bitfieldInsert({}_ssbo{}[{}/4],{},int({}%4)*8,8);", ctx.stage_name,
ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int({}%4)*8,8);", ctx.stage_name,
binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, value,
offset_var);
}
@ -78,7 +79,7 @@ void EmitWriteStorageS8([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]=bitfieldInsert({}_ssbo{}[{}/4],{},int({}%4)*8,8);", ctx.stage_name,
ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int({}%4)*8,8);", ctx.stage_name,
binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, value,
offset_var);
}
@ -88,7 +89,7 @@ void EmitWriteStorageU16([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]=bitfieldInsert({}_ssbo{}[{}/4],{},int(({}/2)%2)*16,16);",
ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int(({}>>1)%2)*16,16);",
ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var,
value, offset_var);
}
@ -98,7 +99,7 @@ void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]=bitfieldInsert({}_ssbo{}[{}/4],{},int(({}/2)%2)*16,16);",
ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int(({}>>1)%2)*16,16);",
ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var,
value, offset_var);
}
@ -106,14 +107,14 @@ void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx,
void EmitWriteStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]={};", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[{}>>2]={};", ctx.stage_name, 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.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]={}.x;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+4)/4]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[{}>>2]={}.x;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+4)>>2]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
}
void EmitWriteStorage128([[maybe_unused]] EmitContext& ctx,
@ -121,9 +122,9 @@ void EmitWriteStorage128([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] std::string_view value) {
const auto offset_var{ctx.var_alloc.Consume(offset)};
ctx.Add("{}_ssbo{}[{}/4]={}.x;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+4)/4]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+8)/4]={}.z;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+12)/4]={}.w;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[{}>>2]={}.x;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+4)>>2]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+8)>>2]={}.z;", ctx.stage_name, binding.U32(), offset_var, value);
ctx.Add("{}_ssbo{}[({}+12)>>2]={}.w;", ctx.stage_name, binding.U32(), offset_var, value);
}
} // namespace Shader::Backend::GLSL