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// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <string_view>
#include "shader_recompiler/backend/glasm/emit_context.h"
#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
#include "shader_recompiler/frontend/ir/program.h"
#include "shader_recompiler/frontend/ir/value.h"
#ifdef _MSC_VER
#pragma warning(disable : 4100)
#endif
namespace Shader::Backend::GLASM {
#define NotImplemented() throw NotImplementedException("GLASM instruction {}", __LINE__)
static void DefinePhi(EmitContext& ctx, IR::Inst& phi) {
switch (phi.Arg(0).Type()) {
case IR::Type::U1:
case IR::Type::U32:
case IR::Type::F32:
ctx.reg_alloc.Define(phi);
break;
case IR::Type::U64:
case IR::Type::F64:
ctx.reg_alloc.LongDefine(phi);
break;
default:
throw NotImplementedException("Phi node type {}", phi.Type());
}
}
void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
const size_t num_args{phi.NumArgs()};
for (size_t i = 0; i < num_args; ++i) {
ctx.reg_alloc.Consume(phi.Arg(i));
}
if (!phi.Definition<Id>().is_valid) {
// The phi node wasn't forward defined
DefinePhi(ctx, phi);
}
}
void EmitVoid(EmitContext&) {}
void EmitReference(EmitContext& ctx, const IR::Value& value) {
ctx.reg_alloc.Consume(value);
}
void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value& value) {
IR::Inst& phi{RegAlloc::AliasInst(*phi_value.Inst())};
if (!phi.Definition<Id>().is_valid) {
// The phi node wasn't forward defined
DefinePhi(ctx, phi);
}
const Register phi_reg{ctx.reg_alloc.Consume(IR::Value{&phi})};
const Value eval_value{ctx.reg_alloc.Consume(value)};
if (phi_reg == eval_value) {
return;
}
switch (phi.Flags<IR::Type>()) {
case IR::Type::U1:
case IR::Type::U32:
case IR::Type::F32:
ctx.Add("MOV.S {}.x,{};", phi_reg, ScalarS32{eval_value});
break;
case IR::Type::U64:
case IR::Type::F64:
ctx.Add("MOV.U64 {}.x,{};", phi_reg, ScalarRegister{eval_value});
break;
default:
throw NotImplementedException("Phi node type {}", phi.Type());
}
}
void EmitJoin(EmitContext& ctx) {
NotImplemented();
}
void EmitDemoteToHelperInvocation(EmitContext& ctx) {
ctx.Add("KIL TR.x;");
}
void EmitBarrier(EmitContext& ctx) {
ctx.Add("BAR;");
}
void EmitWorkgroupMemoryBarrier(EmitContext& ctx) {
ctx.Add("MEMBAR.CTA;");
}
void EmitDeviceMemoryBarrier(EmitContext& ctx) {
ctx.Add("MEMBAR;");
}
void EmitPrologue(EmitContext& ctx) {
// TODO
}
void EmitEpilogue(EmitContext& ctx) {
// TODO
}
void EmitEmitVertex(EmitContext& ctx, ScalarS32 stream) {
if (stream.type == Type::U32 && stream.imm_u32 == 0) {
ctx.Add("EMIT;");
} else {
ctx.Add("EMITS {};", stream);
}
}
void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
if (!stream.IsImmediate()) {
LOG_WARNING(Shader_GLASM, "Stream is not immediate");
}
ctx.reg_alloc.Consume(stream);
ctx.Add("ENDPRIM;");
}
void EmitGetRegister(EmitContext& ctx) {
NotImplemented();
}
void EmitSetRegister(EmitContext& ctx) {
NotImplemented();
}
void EmitGetPred(EmitContext& ctx) {
NotImplemented();
}
void EmitSetPred(EmitContext& ctx) {
NotImplemented();
}
void EmitSetGotoVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetGotoVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitSetIndirectBranchVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetIndirectBranchVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitSetLoopSafetyVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetLoopSafetyVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetZFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitGetSFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitGetCFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitGetOFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitSetZFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitSetSFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitSetCFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitSetOFlag(EmitContext& ctx) {
NotImplemented();
}
void EmitWorkgroupId(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {},invocation.groupid;", inst);
}
void EmitLocalInvocationId(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {},invocation.localid;", inst);
}
void EmitInvocationId(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,primitive_invocation.x;", inst);
}
void EmitSampleId(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,fragment.sampleid.x;", inst);
}
void EmitIsHelperInvocation(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,fragment.helperthread.x;", inst);
}
void EmitYDirection(EmitContext& ctx, IR::Inst& inst) {
ctx.uses_y_direction = true;
ctx.Add("MOV.F {}.x,y_direction[0].w;", inst);
}
void EmitUndefU1(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,0;", inst);
}
void EmitUndefU8(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,0;", inst);
}
void EmitUndefU16(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,0;", inst);
}
void EmitUndefU32(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,0;", inst);
}
void EmitUndefU64(EmitContext& ctx, IR::Inst& inst) {
ctx.LongAdd("MOV.S64 {}.x,0;", inst);
}
void EmitGetZeroFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitGetSignFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitGetCarryFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitGetOverflowFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitGetSparseFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitGetInBoundsFromOp(EmitContext& ctx) {
NotImplemented();
}
void EmitLogicalOr(EmitContext& ctx, IR::Inst& inst, ScalarS32 a, ScalarS32 b) {
ctx.Add("OR.S {},{},{};", inst, a, b);
}
void EmitLogicalAnd(EmitContext& ctx, IR::Inst& inst, ScalarS32 a, ScalarS32 b) {
ctx.Add("AND.S {},{},{};", inst, a, b);
}
void EmitLogicalXor(EmitContext& ctx, IR::Inst& inst, ScalarS32 a, ScalarS32 b) {
ctx.Add("XOR.S {},{},{};", inst, a, b);
}
void EmitLogicalNot(EmitContext& ctx, IR::Inst& inst, ScalarS32 value) {
ctx.Add("SEQ.S {},{},0;", inst, value);
}
} // namespace Shader::Backend::GLASM
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