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Code Issues Releases Activity

ShaderCache: Fix Phi Nodes Type on OGL.

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This commit is contained in:
Fernando Sahmkow 2021-11-01 22:26:17 +01:00
parent c50ad56bf5
commit 194579bc4f
3 changed files with 30 additions and 2 deletions
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4
src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
View file

@ -68,7 +68,7 @@ void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
}
if (!phi.Definition<Id>().is_valid) {
// The phi node wasn't forward defined
ctx.var_alloc.PhiDefine(phi, phi.Arg(0).Type());
ctx.var_alloc.PhiDefine(phi, phi.Type());
}
}
@ -80,7 +80,7 @@ void EmitReference(EmitContext& ctx, const IR::Value& value) {
void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value& value) {
IR::Inst& phi{*phi_value.InstRecursive()};
const auto phi_type{phi.Arg(0).Type()};
const auto phi_type{phi.Type()};
if (!phi.Definition<Id>().is_valid) {
// The phi node wasn't forward defined
ctx.var_alloc.PhiDefine(phi, phi_type);

4
src/shader_recompiler/frontend/ir/microinstruction.cpp
View file

@ -254,6 +254,10 @@ Inst* Inst::GetAssociatedPseudoOperation(IR::Opcode opcode) {
}
IR::Type Inst::Type() const {
if (op == IR::Opcode::Phi) {
// The type of a phi node is stored in its flags
return Flags<IR::Type>();
}
return TypeOf(op);
}

24
src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp
View file

@ -14,6 +14,7 @@
// https://link.springer.com/chapter/10.1007/978-3-642-37051-9_6
//
#include <deque>
#include <span>
#include <variant>
#include <vector>
@ -370,6 +371,26 @@ void VisitBlock(Pass& pass, IR::Block* block) {
}
pass.SealBlock(block);
}
IR::Type GetConcreteType(IR::Inst* inst) {
std::deque<IR::Inst*> queue;
queue.push_back(inst);
while (!queue.empty()) {
IR::Inst* current = queue.front();
queue.pop_front();
const size_t num_args{current->NumArgs()};
for (size_t i = 0; i < num_args; ++i) {
const auto set_type = current->Arg(i).Type();
if (set_type != IR::Type::Opaque) {
return set_type;
}
if (!current->Arg(i).IsImmediate()) {
queue.push_back(current->Arg(i).Inst());
}
}
}
return IR::Type::Opaque;
}
} // Anonymous namespace
void SsaRewritePass(IR::Program& program) {
@ -381,6 +402,9 @@ void SsaRewritePass(IR::Program& program) {
for (auto block = program.post_order_blocks.rbegin(); block != end; ++block) {
for (IR::Inst& inst : (*block)->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::Phi) {
if (inst.Type() == IR::Type::Opaque) {
inst.SetFlags(GetConcreteType(&inst));
}
inst.OrderPhiArgs();
}
}