gcc/testsuite/gfortran.dg/inline_matmul_20.f90

   1 ! { dg-do  run }
   2 ! { dg-additional-options "-fno-realloc-lhs -ffrontend-optimize" }
   3 ! This used to segfault at runtime.
   4 ! Original test case by Harald Anlauf.
   5 program gfcbug142
   6   implicit none
   7   real, allocatable :: b(:,:)
   8   integer :: n = 5
   9   character(len=20) :: line
  10   allocate (b(n,n))
  11   call random_number (b)
  12   write (unit=line,fmt='(2I5)') shape (matmul (b, transpose (b)))
  13   if (line /= '    5    5') STOP 1
  14 end program gfcbug142