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ShaderCache: Fix Phi Nodes Type on OGL.
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c50ad56bf5
commit
194579bc4f
@ -68,7 +68,7 @@ void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
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}
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if (!phi.Definition<Id>().is_valid) {
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// The phi node wasn't forward defined
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ctx.var_alloc.PhiDefine(phi, phi.Arg(0).Type());
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ctx.var_alloc.PhiDefine(phi, phi.Type());
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}
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}
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@ -80,7 +80,7 @@ void EmitReference(EmitContext& ctx, const IR::Value& value) {
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void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value& value) {
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IR::Inst& phi{*phi_value.InstRecursive()};
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const auto phi_type{phi.Arg(0).Type()};
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const auto phi_type{phi.Type()};
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if (!phi.Definition<Id>().is_valid) {
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// The phi node wasn't forward defined
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ctx.var_alloc.PhiDefine(phi, phi_type);
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@ -254,6 +254,10 @@ Inst* Inst::GetAssociatedPseudoOperation(IR::Opcode opcode) {
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}
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IR::Type Inst::Type() const {
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if (op == IR::Opcode::Phi) {
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// The type of a phi node is stored in its flags
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return Flags<IR::Type>();
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}
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return TypeOf(op);
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}
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@ -14,6 +14,7 @@
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// https://link.springer.com/chapter/10.1007/978-3-642-37051-9_6
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//
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#include <deque>
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#include <span>
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#include <variant>
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#include <vector>
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@ -370,6 +371,26 @@ void VisitBlock(Pass& pass, IR::Block* block) {
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}
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pass.SealBlock(block);
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}
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IR::Type GetConcreteType(IR::Inst* inst) {
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std::deque<IR::Inst*> queue;
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queue.push_back(inst);
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while (!queue.empty()) {
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IR::Inst* current = queue.front();
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queue.pop_front();
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const size_t num_args{current->NumArgs()};
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for (size_t i = 0; i < num_args; ++i) {
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const auto set_type = current->Arg(i).Type();
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if (set_type != IR::Type::Opaque) {
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return set_type;
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}
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if (!current->Arg(i).IsImmediate()) {
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queue.push_back(current->Arg(i).Inst());
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}
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}
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}
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return IR::Type::Opaque;
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}
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} // Anonymous namespace
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void SsaRewritePass(IR::Program& program) {
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@ -381,6 +402,9 @@ void SsaRewritePass(IR::Program& program) {
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for (auto block = program.post_order_blocks.rbegin(); block != end; ++block) {
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for (IR::Inst& inst : (*block)->Instructions()) {
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if (inst.GetOpcode() == IR::Opcode::Phi) {
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if (inst.Type() == IR::Type::Opaque) {
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inst.SetFlags(GetConcreteType(&inst));
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}
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inst.OrderPhiArgs();
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}
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}
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