Mirrors/yuzu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

glasm: Initial implementation of phi nodes on GLASM

Browse source
This commit is contained in:
ReinUsesLisp 2021-05-14 04:48:46 -03:00 • committed by ameerj
parent 0f88fb5d72
commit bf5e48ffe4
12 changed files with 117 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/shader_recompiler/frontend/ir/ir_emitter.cpp
View file

@ -61,6 +61,14 @@ F64 IREmitter::Imm64(f64 value) const {
return F64{Value{value}};
}
void IREmitter::DummyReference(const Value& value) {
Inst(Opcode::DummyReference, value);
}
void IREmitter::PhiMove(IR::Inst& phi, const Value& value) {
Inst(Opcode::PhiMove, Value{&phi}, value);
}
void IREmitter::Prologue() {
Inst(Opcode::Prologue);
}
@ -69,10 +77,6 @@ void IREmitter::Epilogue() {
Inst(Opcode::Epilogue);
}
void IREmitter::BranchConditionRef(const U1& cond) {
Inst(Opcode::BranchConditionRef, cond);
}
void IREmitter::DemoteToHelperInvocation() {
Inst(Opcode::DemoteToHelperInvocation);
}
@ -106,6 +110,9 @@ void IREmitter::SetReg(IR::Reg reg, const U32& value) {
}
U1 IREmitter::GetPred(IR::Pred pred, bool is_negated) {
if (pred == Pred::PT) {
return Imm1(!is_negated);
}
const U1 value{Inst<U1>(Opcode::GetPred, pred)};
if (is_negated) {
return Inst<U1>(Opcode::LogicalNot, value);
@ -264,6 +271,9 @@ static U1 GetFlowTest(IREmitter& ir, FlowTest flow_test) {
U1 IREmitter::Condition(IR::Condition cond) {
const FlowTest flow_test{cond.GetFlowTest()};
const auto [pred, is_negated]{cond.GetPred()};
if (flow_test == FlowTest::T) {
return GetPred(pred, is_negated);
}
return LogicalAnd(GetPred(pred, is_negated), GetFlowTest(*this, flow_test));
}

4
src/shader_recompiler/frontend/ir/ir_emitter.h
View file

@ -32,9 +32,11 @@ public:
[[nodiscard]] U64 Imm64(s64 value) const;
[[nodiscard]] F64 Imm64(f64 value) const;
void DummyReference(const Value& value);
void PhiMove(IR::Inst& phi, const Value& value);
void Prologue();
void Epilogue();
void BranchConditionRef(const U1& cond);
void DemoteToHelperInvocation();
void EmitVertex(const U32& stream);
void EndPrimitive(const U32& stream);

3
src/shader_recompiler/frontend/ir/microinstruction.cpp
View file

@ -56,9 +56,10 @@ Inst::~Inst() {
bool Inst::MayHaveSideEffects() const noexcept {
switch (op) {
case Opcode::DummyReference:
case Opcode::PhiMove:
case Opcode::Prologue:
case Opcode::Epilogue:
case Opcode::BranchConditionRef:
case Opcode::Join:
case Opcode::DemoteToHelperInvocation:
case Opcode::Barrier:

3
src/shader_recompiler/frontend/ir/opcodes.inc
View file

@ -6,11 +6,12 @@
OPCODE(Phi, Opaque, )
OPCODE(Identity, Opaque, Opaque, )
OPCODE(Void, Void, )
OPCODE(DummyReference, Void, Opaque, )
OPCODE(PhiMove, Void, Opaque, Opaque, )
// Special operations
OPCODE(Prologue, Void, )
OPCODE(Epilogue, Void, )
OPCODE(BranchConditionRef, Void, U1, )
OPCODE(Join, Void, )
OPCODE(DemoteToHelperInvocation, Void, )
OPCODE(EmitVertex, Void, U32, )

4
src/shader_recompiler/frontend/ir/value.h
View file

@ -391,4 +391,8 @@ inline f64 Value::F64() const {
return imm_f64;
}
[[nodiscard]] inline bool IsPhi(const Inst& inst) {
return inst.GetOpcode() == Opcode::Phi;
}
} // namespace Shader::IR

6
src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp
View file

@ -704,7 +704,7 @@ private:
// Implement if header block
IR::IREmitter ir{*current_block};
const IR::U1 cond{VisitExpr(ir, *stmt.cond)};
ir.BranchConditionRef(cond);
ir.DummyReference(cond);
const size_t if_node_index{syntax_list.size()};
syntax_list.emplace_back();
@ -755,7 +755,7 @@ private:
// The continue block is located at the end of the loop
IR::IREmitter ir{*continue_block};
const IR::U1 cond{VisitExpr(ir, *stmt.cond)};
ir.BranchConditionRef(cond);
ir.DummyReference(cond);
IR::Block* const body_block{syntax_list.at(body_block_index).block};
loop_header_block->AddBranch(body_block);
@ -792,7 +792,7 @@ private:
IR::IREmitter ir{*current_block};
const IR::U1 cond{VisitExpr(ir, *stmt.cond)};
ir.BranchConditionRef(cond);
ir.DummyReference(cond);
current_block->AddBranch(break_block);
current_block->AddBranch(skip_block);
current_block = skip_block;