LICM.h

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#ifndef HALIDE_LICM_H
#define HALIDE_LICM_H
 
/** \file
 * Methods for lifting loop invariants out of inner loops.
 */
 
#include "Expr.h"
 
namespace Halide {
namespace Internal {
 
/** Hoist loop-invariants out of inner loops. This is especially
 * important in cases where LLVM would not do it for us
 * automatically. For example, it hoists loop invariants out of cuda
 * kernels. */
Stmt hoist_loop_invariant_values(Stmt);
 
/** Just hoist loop-invariant if statements as far up as
 * possible. Does not lift other values. It's useful to run this
 * earlier in lowering to simplify the IR. */
Stmt hoist_loop_invariant_if_statements(Stmt);
 
}  // namespace Internal
}  // namespace Halide
 
#endif