diff options
Diffstat (limited to 'gcc/tree.def')
| -rw-r--r-- | gcc/tree.def | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree.def b/gcc/tree.def index 44130d7c77f..d16575aee62 100644 --- a/gcc/tree.def +++ b/gcc/tree.def @@ -852,6 +852,21 @@ DEFTREECODE (ADDR_EXPR, "addr_expr", tcc_expression, 1) descriptor of type ptr_mode. */ DEFTREECODE (FDESC_EXPR, "fdesc_expr", tcc_expression, 2) +/* Given a container value, a replacement value and a bit position within + the container, produce the value that results from replacing the part of + the container starting at the bit position with the replacement value. + Operand 0 is a tree for the container value of integral or vector type; + Operand 1 is a tree for the replacement value of another integral or + the vector element type; + Operand 2 is a tree giving the constant bit position; + The number of bits replaced is given by the precision of the type of the + replacement value if it is integral or by its size if it is non-integral. + ??? The reason to make the size of the replacement implicit is to avoid + introducing a quaternary operation. + The replaced bits shall be fully inside the container. If the container + is of vector type, then these bits shall be aligned with its elements. */ +DEFTREECODE (BIT_INSERT_EXPR, "bit_field_insert", tcc_expression, 3) + /* Given two real or integer operands of the same type, returns a complex value of the corresponding complex type. */ DEFTREECODE (COMPLEX_EXPR, "complex_expr", tcc_binary, 2) |