Loop distribution

Loop distribution

Back

Converts

DO I = 1, N
  A(I) = B(I) + C
  D(I) = E(I) * F
ENDDO

to

DO I = 1, N
   A(I) = B(I) + C
ENDDO
DO I = 1, N
   D(I) = E(I) * F
ENDDO

In GCC it can be added with the flag -ftree-loop-distribution

Case Study

GCC Loop Distribution Case Study