konica sarker <konica.sarker@xxxxxxxxx> writes: > here is a tree code : > for example output of debug_tree(t1) > > <real_type 0xb77a6120 float address-space-1 SF > size <integer_cst 0xb76d42c0 type <integer_type 0xb76e8060 > bit_size_type> constant 32> > unit size <integer_cst 0xb76d4060 type <integer_type 0xb76e8000 > long unsigned int> constant 4> > align 32 symtab 0 alias set -1 canonical type 0xb77a6120 precision 32> > > if I use addr_space_t asl = TYPE_ADDR_SPACE (t1); > I get the address space value in asl. > > > now, I have another tree code : > debug_tree(t2) > > <var_decl 0xb781d284 z > type <real_type 0xb781c120 float address-space-1 SF > size <integer_cst 0xb774a2c0 constant 32> > unit size <integer_cst 0xb774a060 constant 4> > align 32 symtab 0 alias set -1 canonical type 0xb781c120 precision 32> > used public external common SF defer-output file /tmp/test.c line > 21 col 21 size <integer_cst 0xb774a2c0 32> unit size <integer_cst > 0xb774a060 4> > align 32> > > if I use addr_space_t asl = TYPE_ADDR_SPACE (t2); > I am not getting the address space value . > > so , what is the difference of this two tree? > how do I get the address space value of the 2nd one? In this example, t1 is a REAL_TYPE, but t2 is a VAR_DECL. You have to use TYPE_ADDR_SPACE with a type, not a decl. A decl has a type, but it is not a type. For this example, you should be using TYPE_ADDR_SPACE (TREE_TYPE (t2)), not TYPE_ADDR_SPACE (t2). If you look carefully at the debug_tree (t2) output, you can see that address-space-1 is associated with the type field of the VAR_DECL. Ian
