diff options
Diffstat (limited to 'gcc/rtl.def')
| -rw-r--r-- | gcc/rtl.def | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/rtl.def b/gcc/rtl.def index 30c5518e4df..29cb5ee4bf8 100644 --- a/gcc/rtl.def +++ b/gcc/rtl.def @@ -203,6 +203,33 @@ DEF_RTL_EXPR(DEFINE_PEEPHOLE, "define_peephole", "EssV", 'x') (`operands' is an alias here for `recog_operand'). */ DEF_RTL_EXPR(DEFINE_SPLIT, "define_split", "EsES", 'x') +/* Definition of an insn and associated split. + This is the concatenation, with a few modifications, of a define_insn + and a define_split which share the same pattern. + Operand: + 0: names this instruction. + If the name is the null string, the instruction is in the + machine description just to be recognized, and will never be emitted by + the tree to rtl expander. + 1: is the pattern. + 2: is a string which is a C expression + giving an additional condition for recognizing this pattern. + A null string means no extra condition. + 3: is the action to execute if this pattern is matched. + If this assembler code template starts with a * then it is a fragment of + C code to run to decide on a template to use. Otherwise, it is the + template to use. + 4: C expression that must be true for split. This may start with "&&" + in which case the split condition is the logical and of the insn + condition and what follows the "&&" of this operand. + 5: vector of insn patterns to place into a SEQUENCE + 6: optionally, some C code to execute before generating the + insns. This might, for example, create some RTX's and store them in + elements of `recog_operand' for use by the vector of insn-patterns. + (`operands' is an alias here for `recog_operand'). + 7: optionally, a vector of attributes for this insn. */ +DEF_RTL_EXPR(DEFINE_INSN_AND_SPLIT, "define_insn_and_split", "sEsssESV", 'x') + /* Definition of an RTL peephole operation. Follows the same arguments as define_split. */ DEF_RTL_EXPR(DEFINE_PEEPHOLE2, "define_peephole2", "EsES", 'x') |