[Bug tree-optimization/39516] [4.4 Regression] internal compiler error: in copy_to_mode_reg, at explow.c:623

[jakub at gcc dot gnu dot org]

------- Comment #10 from jakub at gcc dot gnu dot org  2009-03-23 08:48 -------
Even more reduced testcase:
C { dg-options "-O2 -ftree-loop-linear" }
      SUBROUTINE SUB(A, B, M)
      IMPLICIT NONE
      DOUBLE PRECISION A(20,20), B(20)
      INTEGER*8 I, J, K, M
      DO I=1,M
        DO J=1,M
          A(I,J)=A(I,J)+1
        END DO
      END DO
      DO K=1,20
        DO I=1,M
          DO J=1,M
            B(I)=B(I)+A(I,J)
          END DO
        END DO
      END DO
      END SUBROUTINE


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39516