diff options
Diffstat (limited to 'gcc/tree.def')
| -rw-r--r-- | gcc/tree.def | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree.def b/gcc/tree.def index aac9d563c38..4a55ee0aaf9 100644 --- a/gcc/tree.def +++ b/gcc/tree.def @@ -391,8 +391,9 @@ DEFTREECODE (COMPONENT_REF, "component_ref", tcc_reference, 3) Operand 0 is the structure or union expression; operand 1 is a tree giving the constant number of bits being referenced; operand 2 is a tree giving the constant position of the first referenced bit. - The field can be either a signed or unsigned field; - BIT_FIELD_REF_UNSIGNED says which. */ + The result type width has to match the number of bits referenced. + If the result type is integral, its signedness specifies how it is extended + to its mode width. */ DEFTREECODE (BIT_FIELD_REF, "bit_field_ref", tcc_reference, 3) /* The ordering of the following codes is optimized for the checking |