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speedups for compilation of initializers in -O gen-C++ generated code

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This commit is contained in:
Vern Paxson 2024-08-13 14:43:17 -07:00
parent 6daf9d5b88
commit 0ca2f9a8b2
6 changed files with 139 additions and 50 deletions
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19
src/script_opt/CPP/InitsInfo.h
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@ -133,10 +133,10 @@ public:
// Sets the associated C++ type.
virtual void SetCPPType(std::string ct) { CPP_type = std::move(ct); }
// Whether this initializer is in terms of compound objects. Used
// Whether this initializer is in terms of compound vectors. Used
// for avoiding compiler warnings about singleton initializations in
// braces.
virtual bool IsCompound() const { return false; }
virtual bool UsesCompoundVectors() const { return false; }
// Returns the type associated with the table used for initialization
// (i.e., this is the type of the global returned by InitializersName()).
@ -146,9 +146,11 @@ public:
void AddInstance(std::shared_ptr<CPP_InitInfo> g);
// Emit code to populate the table used to initialize this collection.
void GenerateInitializers(CPPCompile* c);
virtual void GenerateInitializers(CPPCompile* c);
protected:
virtual void GenerateCohorts(CPPCompile* c);
// Computes offset_set - see below.
void BuildOffsetSet(CPPCompile* c);
@ -214,7 +216,7 @@ public:
BuildInitType();
}
bool IsCompound() const override { return true; }
bool UsesCompoundVectors() const override { return true; }
private:
void BuildInitType() { inits_type = std::string("CPP_CustomInits<") + CPPType() + ">"; }
@ -236,7 +238,7 @@ public:
inits_type = std::string("CPP_BasicConsts<") + CPP_type + ", " + c_type + ", " + tag + "Val>";
}
bool IsCompound() const override { return false; }
bool UsesCompoundVectors() const override { return false; }
void BuildCohortElement(CPPCompile* c, std::string init_type, std::vector<std::string>& ivs) override;
};
@ -254,7 +256,12 @@ public:
inits_type = std::string("CPP_IndexedInits<") + CPPType() + ">";
}
bool IsCompound() const override { return true; }
// This isn't true (anymore) because we separately build up the compound
// vectors needed for the initialization.
bool UsesCompoundVectors() const override { return false; }
void GenerateInitializers(CPPCompile* c) override;
void GenerateCohorts(CPPCompile* c) override;
void BuildCohortElement(CPPCompile* c, std::string init_type, std::vector<std::string>& ivs) override;
};