Hash :
d7aa0130
Author :
Date :
2021-04-26T16:56:15
Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator changes from Apple's direct-to-Metal backend. Taken from Kyle Piddington's CL: https://chromium-review.googlesource.com/c/angle/angle/+/2857366/ The goal of this CL is to merge the translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
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//
// Copyright 2020 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REWRITEGLOBALQUALIFIERDECLS_H_
#define COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REWRITEGLOBALQUALIFIERDECLS_H_
#include <unordered_set>
#include "compiler/translator/Compiler.h"
namespace sh
{
// Tracks TVariables and TFields that are marked as "invariant".
class Invariants
{
public:
void insert(const TVariable &var) { mInvariants.insert(&var); }
void insert(const TField &field) { mInvariants.insert(&field); }
bool contains(const TVariable &var) const
{
return mInvariants.find(&var) != mInvariants.end();
}
bool contains(const TField &field) const
{
return mInvariants.find(&field) != mInvariants.end();
}
private:
std::unordered_set<const void *> mInvariants;
};
// This rewrites TIntermGlobalQualifierDeclarations as TIntermDeclarations.
// `outInvariants` is populated with the information that would otherwise be lost by such a
// transform.
ANGLE_NO_DISCARD bool RewriteGlobalQualifierDecls(TCompiler &compiler,
TIntermBlock &root,
Invariants &outInvariants);
} // namespace sh
#endif // COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REWRITEGLOBALQUALIFIERDECLS_H_