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Transition EstimateCost() AST traversal to WalkAST() as well.

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This commit is contained in:
Matt Pharr
2011-12-16 12:16:11 -08:00
parent 701334ccf2
commit f23d030e43
5 changed files with 61 additions and 69 deletions
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15
ast.h
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@@ -66,6 +66,9 @@ public:
pointer in place of the original ASTNode *. */
virtual ASTNode *TypeCheck() = 0;
/** Estimate the execution cost of the node (not including the cost of
the children. The value returned should be based on the COST_*
enumerant values defined in ispc.h. */
virtual int EstimateCost() const = 0;
/** All AST nodes must track the file position where they are
@@ -127,14 +130,18 @@ extern Expr *Optimize(Expr *);
to a Stmt *). */
extern Stmt *Optimize(Stmt *);
/* Perform type-checking on the given AST (or portion of one), returning a
pointer to the root of the resulting AST. */
/** Perform type-checking on the given AST (or portion of one), returning a
pointer to the root of the resulting AST. */
extern ASTNode *TypeCheck(ASTNode *root);
/* Convenience version of TypeCheck() for Expr *s that returns an Expr *. */
/** Convenience version of TypeCheck() for Expr *s that returns an Expr *. */
extern Expr *TypeCheck(Expr *);
/* Convenience version of TypeCheck() for Stmt *s that returns an Stmt *. */
/** Convenience version of TypeCheck() for Stmt *s that returns an Stmt *. */
extern Stmt *TypeCheck(Stmt *);
/** Returns an estimate of the execution cost of the tree starting at
the given root. */
extern int EstimateCost(ASTNode *root);
#endif // ISPC_AST_H