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shader: Initial implementation of an AST

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This commit is contained in:
ReinUsesLisp 2021-02-11 16:39:06 -03:00 • committed by ameerj
parent 2930dccecc
commit 9170200a11
33 changed files with 1347 additions and 591 deletions
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43
src/shader_recompiler/frontend/ir/ir_emitter.cpp
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@ -44,26 +44,29 @@ F64 IREmitter::Imm64(f64 value) const {
return F64{Value{value}};
}
void IREmitter::Branch(IR::Block* label) {
void IREmitter::Branch(Block* label) {
label->AddImmediatePredecessor(block);
Inst(Opcode::Branch, label);
}
void IREmitter::BranchConditional(const U1& cond, IR::Block* true_label, IR::Block* false_label) {
Inst(Opcode::BranchConditional, cond, true_label, false_label);
void IREmitter::BranchConditional(const U1& condition, Block* true_label, Block* false_label) {
true_label->AddImmediatePredecessor(block);
false_label->AddImmediatePredecessor(block);
Inst(Opcode::BranchConditional, condition, true_label, false_label);
}
void IREmitter::Exit() {
Inst(Opcode::Exit);
void IREmitter::LoopMerge(Block* merge_block, Block* continue_target) {
Inst(Opcode::LoopMerge, merge_block, continue_target);
}
void IREmitter::SelectionMerge(Block* merge_block) {
Inst(Opcode::SelectionMerge, merge_block);
}
void IREmitter::Return() {
Inst(Opcode::Return);
}
void IREmitter::Unreachable() {
Inst(Opcode::Unreachable);
}
U32 IREmitter::GetReg(IR::Reg reg) {
return Inst<U32>(Opcode::GetRegister, reg);
}
@ -81,6 +84,14 @@ U1 IREmitter::GetPred(IR::Pred pred, bool is_negated) {
}
}
U1 IREmitter::GetGotoVariable(u32 id) {
return Inst<U1>(Opcode::GetGotoVariable, id);
}
void IREmitter::SetGotoVariable(u32 id, const U1& value) {
Inst(Opcode::SetGotoVariable, id, value);
}
void IREmitter::SetPred(IR::Pred pred, const U1& value) {
Inst(Opcode::SetPred, pred, value);
}
@ -121,6 +132,20 @@ void IREmitter::SetOFlag(const U1& value) {
Inst(Opcode::SetOFlag, value);
}
U1 IREmitter::Condition(IR::Condition cond) {
if (cond == IR::Condition{true}) {
return Imm1(true);
} else if (cond == IR::Condition{false}) {
return Imm1(false);
}
const FlowTest flow_test{cond.FlowTest()};
const auto [pred, is_negated]{cond.Pred()};
if (flow_test == FlowTest::T) {
return GetPred(pred, is_negated);
}
throw NotImplementedException("Condition {}", cond);
}
F32 IREmitter::GetAttribute(IR::Attribute attribute) {
return Inst<F32>(Opcode::GetAttribute, attribute);
}