diff options
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -402,6 +402,35 @@ struct GTY((desc("0"), tag("0"), } GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u; }; +class GTY(()) rtx_insn_list : public rtx_def +{ + /* No extra fields, but adds invariant: (GET_CODE (X) == INSN_LIST). + + This is an instance of: + + DEF_RTL_EXPR(INSN_LIST, "insn_list", "ue", RTX_EXTRA) + + i.e. a node for constructing singly-linked lists of rtx_insn *, where + the list is "external" to the insn (as opposed to the doubly-linked + list embedded within rtx_insn itself). */ + +public: + /* Get next in list. */ + rtx_insn_list *next () const; + + /* Get at the underlying instruction. */ + rtx_insn *insn () const; + +}; + +template <> +template <> +inline bool +is_a_helper <rtx_insn_list *>::test (rtx rt) +{ + return rt->code == INSN_LIST; +} + class GTY(()) rtx_insn : public rtx_def { /* No extra fields, but adds the invariant: @@ -1168,6 +1197,21 @@ extern void rtl_check_failed_flag (const char *, const_rtx, const char *, #define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rt_rtx) + +/* Methods of rtx_insn_list. */ + +inline rtx_insn_list *rtx_insn_list::next () const +{ + rtx tmp = XEXP (this, 1); + return safe_as_a <rtx_insn_list *> (tmp); +} + +inline rtx_insn *rtx_insn_list::insn () const +{ + rtx tmp = XEXP (this, 0); + return safe_as_a <rtx_insn *> (tmp); +} + /* ACCESS MACROS for particular fields of insns. */ /* Holds a unique number for each insn. @@ -2952,6 +2996,7 @@ get_mem_attrs (const_rtx x) generation functions included above do the raw handling. If you add to this list, modify special_rtx in gengenrtl.c as well. */ +extern rtx_insn_list *gen_rtx_INSN_LIST (enum machine_mode, rtx, rtx); extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT); extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec); extern rtx gen_raw_REG (enum machine_mode, int); |