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glasm: Initial implementation of phi nodes on GLASM

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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
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18
src/shader_recompiler/frontend/ir/ir_emitter.cpp
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@ -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));
}