pinned_init = "op_pin_state_pinned"
throws_init = "false"
attr_struct = "bound_attr"
- attrs_name = "bound"
class Builtin(Op):
"""performs a backend-specific builtin."""
]
arity = "variable"
outs = [
- ("M", "memory result"),
- ("1_result", "first result"),
+ ("M", "memory result"),
+ # results follow here
]
flags = [ "uses_memory" ]
attrs = [
attr_struct = "cmp_attr"
class Cond(Op):
- """Conditionally change control flow. There are two versions of this node:
-
- Boolean Cond:
- Input: A value of mode_b
- Output: A tuple of two control flows. The first is taken if the input is
- false, the second if it is true.
-
- Switch Cond:
- Input: A value of mode_Iu
- Output: A tuple of n control flows. If the Cond's input is i, control flow
- will proceed along output i. If the input is >= n control flow proceeds
- along output def_proj.
- """
+ """Conditionally change control flow."""
ins = [
("selector", "condition parameter"),
]
flags = [ "cfopcode", "forking" ]
pinned = "yes"
attrs = [
- dict(
- name = "default_proj",
- type = "long",
- init = "0",
- comment = "Proj-number of default case for switch-Cond",
- ),
dict(
name = "jmp_pred",
type = "cond_jmp_predicate",
init = "COND_JMP_PRED_NONE",
comment = "can indicate the most likely jump",
- )
+ ),
]
attr_struct = "cond_attr"
+class Switch(Op):
+ """Change control flow. The destination is choosen based on an integer input value which is looked up in a table.
+
+ Backends can implement this efficiently using a jump table."""
+ ins = [
+ ("selector", "input selector"),
+ ]
+ outs = [
+ ("default", "control flow if no other case matches"),
+ ]
+ flags = [ "cfopcode", "forking" ]
+ pinned = "yes"
+ attrs = [
+ dict(
+ name = "n_outs",
+ type = "unsigned",
+ comment = "number of outputs (including pn_Switch_default)",
+ ),
+ dict(
+ name = "table",
+ type = "ir_switch_table*",
+ comment = "table describing mapping from input values to Proj numbers",
+ ),
+ ]
+ attr_struct = "switch_attr"
+ attrs_name = "switcha"
+
class Confirm(Op):
"""Specifies constraints for a value. This allows explicit representation
of path-sensitive properties. (Example: This value is always >= 0 on 1
),
]
attr_struct = "confirm_attr"
- attrs_name = "confirm"
class Const(Op):
"""Returns a constant value."""
)
]
attr_struct = "conv_attr"
- attrs_name = "conv"
class CopyB(Op):
"""Copies a block of memory"""
)
]
attr_struct = "copyb_attr"
- attrs_name = "copyb"
pinned = "memory"
pinned_init = "op_pin_state_pinned"
throws_init = "false"
("X_except", "control flow when exception occured"),
]
flags = [ "fragile", "uses_memory" ]
- attrs_name = "div"
attrs = [
dict(
type = "ir_mode*",
"""returns the remainder of its operands from an implied division.
Examples:
+
* mod(5,3) produces 2
* mod(5,-3) produces 2
* mod(-5,3) produces -2
("X_except", "control flow when exception occured"),
]
flags = [ "fragile", "uses_memory" ]
- attrs_name = "mod"
attrs = [
dict(
type = "ir_mode*",
class SymConst(Op):
"""A symbolic constant.
- - symconst_type_tag The symbolic constant represents a type tag. The
- type the tag stands for is given explicitly.
- - symconst_type_size The symbolic constant represents the size of a type.
- The type of which the constant represents the size
- is given explicitly.
- - symconst_type_align The symbolic constant represents the alignment of a
- type. The type of which the constant represents the
- size is given explicitly.
- - symconst_addr_ent The symbolic constant represents the address of an
- entity (variable or method). The variable is given
- explicitly by a firm entity.
- - symconst_ofs_ent The symbolic constant represents the offset of an
- entity in its owner type.
- - symconst_enum_const The symbolic constant is a enumeration constant of
- an enumeration type."""
+ - *symconst_type_tag* The symbolic constant represents a type tag. The
+ type the tag stands for is given explicitly.
+ - *symconst_type_size* The symbolic constant represents the size of a type.
+ The type of which the constant represents the size
+ is given explicitly.
+ - *symconst_type_align* The symbolic constant represents the alignment of a
+ type. The type of which the constant represents the
+ size is given explicitly.
+ - *symconst_addr_ent* The symbolic constant represents the address of an
+ entity (variable or method). The variable is given
+ explicitly by a firm entity.
+ - *symconst_ofs_ent* The symbolic constant represents the offset of an
+ entity in its owner type.
+ - *symconst_enum_const* The symbolic constant is a enumeration constant of
+ an enumeration type."""
mode = "mode_P"
flags = [ "constlike", "start_block" ]
knownBlock = True
projects / libfirm / blobdiff