diff options
Diffstat (limited to 'gcc/rtl.def')
| -rw-r--r-- | gcc/rtl.def | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/rtl.def b/gcc/rtl.def index d6c881f6465..47a37623c6d 100644 --- a/gcc/rtl.def +++ b/gcc/rtl.def @@ -64,7 +64,8 @@ along with GCC; see the file COPYING3. If not see RTX_BITFIELD_OPS an rtx code for a bit-field operation (ZERO_EXTRACT, SIGN_EXTRACT) RTX_INSN - an rtx code for a machine insn (INSN, JUMP_INSN, CALL_INSN) + an rtx code for a machine insn (INSN, JUMP_INSN, CALL_INSN) or + data that will be output as assembly pseudo-ops (DEBUG_INSN) RTX_MATCH an rtx code for something that matches in insns (e.g, MATCH_DUP) RTX_AUTOINC @@ -137,6 +138,13 @@ DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBeiie0", RTX_INSN) All other fields ( rtx->u.fld[] ) have exact same meaning as INSN's. */ DEF_RTL_EXPR(CALL_INSN, "call_insn", "iuuBeiiee", RTX_INSN) +/* Placeholder for tablejump JUMP_INSNs. The pattern of this kind + of rtx is always either an ADDR_VEC or an ADDR_DIFF_VEC. These + placeholders do not appear as real instructions inside a basic + block, but are considered active_insn_p instructions for historical + reasons, when jump table data was represented with JUMP_INSNs. */ +DEF_RTL_EXPR(JUMP_TABLE_DATA, "jump_table_data", "iuuBe0000", RTX_INSN) + /* A marker that indicates that control will not flow through. */ DEF_RTL_EXPR(BARRIER, "barrier", "iuu00000", RTX_EXTRA) @@ -214,8 +222,12 @@ DEF_RTL_EXPR(UNSPEC, "unspec", "Ei", RTX_EXTRA) /* Similar, but a volatile operation and one which may trap. */ DEF_RTL_EXPR(UNSPEC_VOLATILE, "unspec_volatile", "Ei", RTX_EXTRA) -/* Vector of addresses, stored as full words. */ -/* Each element is a LABEL_REF to a CODE_LABEL whose address we want. */ +/* ---------------------------------------------------------------------- + Table jump addresses. + ---------------------------------------------------------------------- */ + +/* Vector of addresses, stored as full words. + Each element is a LABEL_REF to a CODE_LABEL whose address we want. */ DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA) /* Vector of address differences X0 - BASE, X1 - BASE, ... @@ -240,7 +252,6 @@ DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA) The third, fourth and fifth operands are only valid when CASE_VECTOR_SHORTEN_MODE is defined, and only in an optimizing compilation. */ - DEF_RTL_EXPR(ADDR_DIFF_VEC, "addr_diff_vec", "eEee0", RTX_EXTRA) /* Memory prefetch, with attributes supported on some targets. |