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glsl: Fix ATOM and implement ATOMS

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This commit is contained in:
ameerj 2021-05-30 14:31:59 -04:00
parent 68ef3803bf
commit 9ccbd74991
5 changed files with 136 additions and 114 deletions
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4
src/shader_recompiler/backend/glsl/emit_context.cpp
View file

@ -182,10 +182,10 @@ void EmitContext::DefineStorageBuffers(Bindings& bindings) {
}
void EmitContext::DefineHelperFunctions() {
if (info.uses_global_increment) {
if (info.uses_global_increment || info.uses_shared_increment) {
header += "uint CasIncrement(uint op_a,uint op_b){return(op_a>=op_b)?0u:(op_a+1u);}\n";
}
if (info.uses_global_decrement) {
if (info.uses_global_decrement || info.uses_shared_decrement) {
header +=
"uint CasDecrement(uint op_a,uint op_b){return(op_a==0||op_a>op_b)?op_b:(op_a-1u);}\n";
}

138
src/shader_recompiler/backend/glsl/emit_glsl_atomic.cpp
View file

@ -11,31 +11,103 @@
namespace Shader::Backend::GLSL {
namespace {
static constexpr std::string_view cas_loop{R"(uint {};
static constexpr std::string_view cas_loop{R"({};
for (;;){{
uint old_value={};
{}=atomicCompSwap({},old_value,{}({},{}));
if ({}==old_value){{break;}}
}})"};
void CasFunction(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
void SharedCasFunction(EmitContext& ctx, IR::Inst& inst, std::string_view offset,
std::string_view value, std::string_view function) {
const auto ret{ctx.reg_alloc.Define(inst, Type::U32)};
const std::string smem{fmt::format("smem[{}/4]", offset)};
ctx.Add(cas_loop.data(), ret, smem, ret, smem, function, smem, value, ret);
}
void SsboCasFunction(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value, std::string_view function) {
const auto ret{ctx.reg_alloc.Define(inst)};
const auto ret{ctx.reg_alloc.Define(inst, Type::U32)};
const std::string ssbo{fmt::format("ssbo{}[{}]", binding.U32(), offset.U32())};
ctx.Add(cas_loop.data(), ret, ssbo, ret, ssbo, function, ssbo, value, ret);
}
void CasFunctionF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value, std::string_view function) {
void SsboCasFunctionF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value,
std::string_view function) {
const std::string ssbo{fmt::format("ssbo{}[{}]", binding.U32(), offset.U32())};
const std::string u32_value{fmt::format("floatBitsToUint({})", value)};
const auto ret{ctx.reg_alloc.Define(inst)};
const auto ret_32{ret + "_u32"};
ctx.Add(cas_loop.data(), ret_32, ssbo, ret_32, ssbo, function, ssbo, value, ret_32);
ctx.Add("float {}=uintBitsToFloat({});", ret, ret_32);
const auto ret{ctx.reg_alloc.Define(inst, Type::U32)};
ctx.Add(cas_loop.data(), ret, ssbo, ret, ssbo, function, ssbo, value, ret);
ctx.AddF32("{}=uintBitsToFloat({});", inst, ret);
}
} // namespace
void EmitSharedAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicAdd(smem[{}/4],{});", inst, pointer_offset, value);
}
} // namespace
void EmitSharedAtomicSMin32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
const std::string u32_value{fmt::format("uint({})", value)};
SharedCasFunction(ctx, inst, pointer_offset, u32_value, "CasMinS32");
}
void EmitSharedAtomicUMin32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicMin(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicSMax32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
const std::string u32_value{fmt::format("uint({})", value)};
SharedCasFunction(ctx, inst, pointer_offset, u32_value, "CasMaxS32");
}
void EmitSharedAtomicUMax32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicMax(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicInc32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
SharedCasFunction(ctx, inst, pointer_offset, value, "CasIncrement");
}
void EmitSharedAtomicDec32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
SharedCasFunction(ctx, inst, pointer_offset, value, "CasDecrement");
}
void EmitSharedAtomicAnd32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicAnd(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicOr32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicOr(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicXor32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicXor(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicExchange32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
ctx.AddU32("{}=atomicExchange(smem[{}/4],{});", inst, pointer_offset, value);
}
void EmitSharedAtomicExchange64(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value) {
// LOG_WARNING("Int64 Atomics not supported, fallback to non-atomic");
const auto ret{ctx.reg_alloc.Define(inst, Type::U64)};
ctx.Add("{}=packUint2x32(uvec2(smem[{}/4],smem[({}+4)/4]));", ret, pointer_offset,
pointer_offset);
ctx.Add("smem[{}/4]=unpackUint2x32({}).x;smem[({}+4)/4]=unpackUint2x32({}).y;", pointer_offset,
value, pointer_offset, value);
}
void EmitStorageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
@ -45,7 +117,7 @@ void EmitStorageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicSMin32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
const std::string u32_value{fmt::format("uint({})", value)};
CasFunction(ctx, inst, binding, offset, u32_value, "CasMinS32");
SsboCasFunction(ctx, inst, binding, offset, u32_value, "CasMinS32");
}
void EmitStorageAtomicUMin32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
@ -56,7 +128,7 @@ void EmitStorageAtomicUMin32(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicSMax32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
const std::string u32_value{fmt::format("uint({})", value)};
CasFunction(ctx, inst, binding, offset, u32_value, "CasMaxS32");
SsboCasFunction(ctx, inst, binding, offset, u32_value, "CasMaxS32");
}
void EmitStorageAtomicUMax32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
@ -66,12 +138,12 @@ void EmitStorageAtomicUMax32(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicInc32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasIncrement");
SsboCasFunction(ctx, inst, binding, offset, value, "CasIncrement");
}
void EmitStorageAtomicDec32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasDecrement");
SsboCasFunction(ctx, inst, binding, offset, value, "CasDecrement");
}
void EmitStorageAtomicAnd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
@ -97,7 +169,7 @@ void EmitStorageAtomicExchange32(EmitContext& ctx, IR::Inst& inst, const IR::Val
void EmitStorageAtomicIAdd64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
// LOG_WARNING(..., "Op falling to non-atomic");
ctx.AddU64("{}=uint64_t(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
ctx.AddU64("{}=packUint2x32(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
binding.U32(), offset.U32() + 1);
ctx.Add("ssbo{}[{}]+=unpackUint2x32({}).x;ssbo{}[{}]+=unpackUint2x32({}).y;", binding.U32(),
offset.U32(), value, binding.U32(), offset.U32() + 1, value);
@ -106,7 +178,7 @@ void EmitStorageAtomicIAdd64(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicSMin64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
// LOG_WARNING(..., "Op falling to non-atomic");
ctx.AddS64("{}=int64_t(ivec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
ctx.AddS64("{}=packInt2x32(ivec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
binding.U32(), offset.U32() + 1);
ctx.Add("for(int i=0;i<2;++i){{ "
"ssbo{}[{}+i]=uint(min(int(ssbo{}[{}+i]),unpackInt2x32(int64_t({}))[i]));}}",
@ -116,7 +188,7 @@ void EmitStorageAtomicSMin64(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicUMin64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
// LOG_WARNING(..., "Op falling to non-atomic");
ctx.AddU64("{}=uint64_t(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
ctx.AddU64("{}=packUint2x32(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
binding.U32(), offset.U32() + 1);
ctx.Add(
"for(int i=0;i<2;++i){{ ssbo{}[{}+i]=min(ssbo{}[{}+i],unpackUint2x32(uint64_t({}))[i]);}}",
@ -126,7 +198,7 @@ void EmitStorageAtomicUMin64(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicSMax64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
// LOG_WARNING(..., "Op falling to non-atomic");
ctx.AddS64("{}=int64_t(ivec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
ctx.AddS64("{}=packInt2x32(ivec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
binding.U32(), offset.U32() + 1);
ctx.Add("for(int i=0;i<2;++i){{ "
"ssbo{}[{}+i]=uint(max(int(ssbo{}[{}+i]),unpackInt2x32(int64_t({}))[i]));}}",
@ -136,7 +208,7 @@ void EmitStorageAtomicSMax64(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicUMax64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
// LOG_WARNING(..., "Op falling to non-atomic");
ctx.AddU64("{}=uint64_t(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
ctx.AddU64("{}=packUint2x32(uvec2(ssbo{}[{}],ssbo{}[{}]));", inst, binding.U32(), offset.U32(),
binding.U32(), offset.U32() + 1);
ctx.Add(
"for(int i=0;i<2;++i){{ssbo{}[{}+i]=max(ssbo{}[{}+i],unpackUint2x32(uint64_t({}))[i]);}}",
@ -145,65 +217,69 @@ void EmitStorageAtomicUMax64(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitStorageAtomicAnd64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
ctx.AddU64("{}=uint64_t(uvec2(atomicAnd(ssbo{}[{}],unpackUint2x32({}).x),atomicAnd(ssbo{}[{}],"
ctx.AddU64(
"{}=packUint2x32(uvec2(atomicAnd(ssbo{}[{}],unpackUint2x32({}).x),atomicAnd(ssbo{}[{}],"
"unpackUint2x32({}).y)));",
inst, binding.U32(), offset.U32(), value, binding.U32(), offset.U32() + 1, value);
}
void EmitStorageAtomicOr64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
ctx.AddU64("{}=uint64_t(uvec2(atomicOr(ssbo{}[{}],unpackUint2x32({}).x),atomicOr(ssbo{}[{}],"
ctx.AddU64(
"{}=packUint2x32(uvec2(atomicOr(ssbo{}[{}],unpackUint2x32({}).x),atomicOr(ssbo{}[{}],"
"unpackUint2x32({}).y)));",
inst, binding.U32(), offset.U32(), value, binding.U32(), offset.U32() + 1, value);
}
void EmitStorageAtomicXor64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
ctx.AddU64("{}=uint64_t(uvec2(atomicXor(ssbo{}[{}],unpackUint2x32({}).x),atomicXor(ssbo{}[{}],"
ctx.AddU64(
"{}=packUint2x32(uvec2(atomicXor(ssbo{}[{}],unpackUint2x32({}).x),atomicXor(ssbo{}[{}],"
"unpackUint2x32({}).y)));",
inst, binding.U32(), offset.U32(), value, binding.U32(), offset.U32() + 1, value);
}
void EmitStorageAtomicExchange64(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
ctx.AddU64("{}=uint64_t(uvec2(atomicExchange(ssbo{}[{}],unpackUint2x32({}).x),atomicExchange("
ctx.AddU64(
"{}=packUint2x32(uvec2(atomicExchange(ssbo{}[{}],unpackUint2x32({}).x),atomicExchange("
"ssbo{}[{}],unpackUint2x32({}).y)));",
inst, binding.U32(), offset.U32(), value, binding.U32(), offset.U32() + 1, value);
}
void EmitStorageAtomicAddF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunctionF32(ctx, inst, binding, offset, value, "CasFloatAdd");
SsboCasFunctionF32(ctx, inst, binding, offset, value, "CasFloatAdd");
}
void EmitStorageAtomicAddF16x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatAdd16x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatAdd16x2");
}
void EmitStorageAtomicAddF32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatAdd32x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatAdd32x2");
}
void EmitStorageAtomicMinF16x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatMin16x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatMin16x2");
}
void EmitStorageAtomicMinF32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatMin32x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatMin32x2");
}
void EmitStorageAtomicMaxF16x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatMax16x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatMax16x2");
}
void EmitStorageAtomicMaxF32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value) {
CasFunction(ctx, inst, binding, offset, value, "CasFloatMax32x2");
SsboCasFunction(ctx, inst, binding, offset, value, "CasFloatMax32x2");
}
void EmitGlobalAtomicIAdd32(EmitContext&) {

24
src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
View file

@ -421,29 +421,29 @@ void EmitSGreaterThanEqual(EmitContext& ctx, IR::Inst& inst, std::string_view lh
std::string_view rhs);
void EmitUGreaterThanEqual(EmitContext& ctx, IR::Inst& inst, std::string_view lhs,
std::string_view rhs);
void EmitSharedAtomicIAdd32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicSMin32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicSMin32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicUMin32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicUMin32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicSMax32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicSMax32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicUMax32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicUMax32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicInc32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicInc32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicDec32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicDec32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicAnd32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicAnd32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicOr32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicOr32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicXor32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicXor32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicExchange32(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicExchange32(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitSharedAtomicExchange64(EmitContext& ctx, std::string_view pointer_offset,
void EmitSharedAtomicExchange64(EmitContext& ctx, IR::Inst& inst, std::string_view pointer_offset,
std::string_view value);
void EmitStorageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset, std::string_view value);

60
src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp
View file

@ -324,66 +324,6 @@ void EmitGetInBoundsFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitSharedAtomicIAdd32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicSMin32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicUMin32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicSMax32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicUMax32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicInc32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicDec32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicAnd32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicOr32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicXor32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicExchange32(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitSharedAtomicExchange64(EmitContext& ctx, std::string_view pointer_offset,
std::string_view value) {
NotImplemented();
}
void EmitBindlessImageAtomicIAdd32(EmitContext&) {
NotImplemented();
}

6
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
View file

@ -703,6 +703,12 @@ void VisitUsages(Info& info, IR::Inst& inst) {
case IR::Opcode::WriteStorage128:
info.used_storage_buffer_types |= IR::Type::U32x4;
break;
case IR::Opcode::SharedAtomicSMin32:
info.uses_atomic_s32_min = true;
break;
case IR::Opcode::SharedAtomicSMax32:
info.uses_atomic_s32_max = true;
break;
case IR::Opcode::SharedAtomicInc32:
info.uses_shared_increment = true;
break;