(SPARC) #pragma pipeloop(n)

This pragma accepts a positive constant integer value, or 0, for the argument n. This pragma specifies that a loop is pipelinable and the minimum dependence distance of the loop-carried dependence is n. If the distance is 0, then the loop is effectively a Fortran-style doall loop and should be pipelined on the target processors. If the distance is greater than 0, then the compiler (pipeliner) will only try to pipeline n successive iterations. The pragma applies to the next for loop within the current block. The compiler takes advantage of this information at optimization level of 3 or above.