On Tue, Dec 18, 2012 at 05:28:09PM +0100, Jakub Jelinek wrote:
> On Tue, Dec 18, 2012 at 04:40:10PM +0100, Tobias Burnus wrote:
> > Looks mostly okay, however, I fear that for
> >
> > subroutine foo()
> > character(len=:), allocatable :: str
> > allocate(str, stat=istat)
> > end subroutine foo
> >
> > compiled with "-fno-automatic", gfortran will still generate the
> > non-GFC_PREFIX-mangled string.
>
> That doesn't compile:
> Error: Allocate-object at (1) with a deferred type parameter requires either
> a type-spec or SOURCE tag or a MOLD tag
>
> Where would be TREE_STATIC set on the length variable with -fno-automatic,
> and on which testcase?
subroutine foo(n)
integer :: n
character(len=n + 8), allocatable :: str
allocate(str, stat=istat)
end subroutine foo
compiles with -fno-automatic, but the length var (unlike str var) is clearly
not TREE_STATIC in that case:
.local str.1877
.comm str.1877,8,8
...
.uleb128 0x5 # (DIE (0x71) DW_TAG_variable)
.ascii "str\0" # DW_AT_name
.byte 0x1 # DW_AT_decl_file (x.f90)
.byte 0x3 # DW_AT_decl_line
.long 0xc2 # DW_AT_type
.uleb128 0x9 # DW_AT_location
.byte 0x3 # DW_OP_addr
.quad str.1877
.uleb128 0x6 # (DIE (0x86) DW_TAG_variable)
.long .LASF5 # DW_AT_name: ".str"
.long 0xb6 # DW_AT_type
# DW_AT_artificial
.uleb128 0x2 # DW_AT_location
.byte 0x91 # DW_OP_fbreg
.sleb128 -36
(and as can be seen, the dot name makes it through into debug info, but not
assembly outside of DW_AT_name).
Jakub
