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rtx structure
- From: "Bharati Bhole" <bharati dot bhole at gmail dot com>
- To: gcc-help at gcc dot gnu dot org
- Date: Wed, 1 Nov 2006 20:42:56 +0530
- Subject: rtx structure
I am not able to understand the structure of rtx_def fully its too complicated.
Could anybody please guide me. Its defined in rtl.h.
struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"),
chain_prev ("RTX_PREV (&%h)")))
{
ENUM_BITFIELD(rtx_code) code: 16;
ENUM_BITFIELD(machine_mode) mode : 8;
unsigned int jump : 1;
unsigned int call : 1;
unsigned int unchanging : 1;
unsigned int volatil : 1;
unsigned int in_struct : 1;
unsigned int used : 1;
unsigned frame_related : 1;
unsigned return_val : 1;
union u {
rtunion fld[1];
HOST_WIDE_INT hwint[1];
} GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u;
};
Thanks,
Bharati.