gcc/testsuite/gfortran.dg/dec_union_12.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-std=legacy -ffree-form -finit-local-zero -finit-derived -fdec-structure" }
   3 !
   4 ! PR fortran/105310
   5 !
   6 ! Test that gfc_conv_union_initializer does not cause an ICE when called
   7 ! to build the constructor for a field which triggers a vector resize.
   8 !
   9
  10 program dec_union_12
  11   implicit none
  12 STRUCTURE /foo8u/
  13   ! 8 fields
  14   INTEGER(4) :: a,b,c,d,e,f,g,h
  15   UNION
  16   MAP
  17   ENDMAP
  18   ENDUNION
  19 ENDSTRUCTURE
  20 STRUCTURE /foo16u/
  21   ! 16 fields
  22   INTEGER(4) :: a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p
  23   UNION
  24   MAP
  25   ENDMAP
  26   ENDUNION
  27 ENDSTRUCTURE
  28 STRUCTURE /foo32u/
  29   ! 32 fields
  30   INTEGER(4) :: a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p
  31   INTEGER(4) :: aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an,ao,ap
  32   UNION
  33   MAP
  34   ENDMAP
  35   ENDUNION
  36 ENDSTRUCTURE
  37   record /foo8u/ bar8u
  38   record /foo16u/ bar16u
  39   record /foo32u/ bar32u
  40   bar8u.a = 1
  41   bar16u.a = 1
  42   bar32u.a = 1
  43 end