GNU Compiler Collection (GCC) Internals: GIMPLE_CALL

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11.8.4 GIMPLE_CALL

GIMPLE function: gcall *gimple_build_call (tree fn, unsigned nargs, ...)

Build a GIMPLE_CALL statement to function FN. The argument FN must be either a FUNCTION_DECL or a gimple call address as determined by is_gimple_call_addr. NARGS are the number of arguments. The rest of the arguments follow the argument NARGS, and must be trees that are valid as rvalues in gimple (i.e., each operand is validated with is_gimple_operand).

GIMPLE function: gcall *gimple_build_call_from_tree (tree call_expr)

Build a GIMPLE_CALL from a CALL_EXPR node. The arguments and the function are taken from the expression directly. This routine assumes that call_expr is already in GIMPLE form. That is, its operands are GIMPLE values and the function call needs no further simplification. All the call flags in call_expr are copied over to the new GIMPLE_CALL.

GIMPLE function: gcall *gimple_build_call_vec (tree fn, vec<tree> args)

Identical to gimple_build_call but the arguments are stored in a vec<tree>.

GIMPLE function: tree gimple_call_lhs (gimple g)

Return the LHS of call statement G.

GIMPLE function: tree * gimple_call_lhs_ptr (gimple g)

Return a pointer to the LHS of call statement G.

GIMPLE function: void gimple_call_set_lhs (gimple g, tree lhs)

Set LHS to be the LHS operand of call statement G.

GIMPLE function: tree gimple_call_fn (gimple g)

Return the tree node representing the function called by call statement G.

GIMPLE function: void gimple_call_set_fn (gcall *g, tree fn)

Set FN to be the function called by call statement G. This has to be a gimple value specifying the address of the called function.

GIMPLE function: tree gimple_call_fndecl (gimple g)

If a given GIMPLE_CALL’s callee is a FUNCTION_DECL, return it. Otherwise return NULL. This function is analogous to get_callee_fndecl in GENERIC.

GIMPLE function: tree gimple_call_set_fndecl (gimple g, tree fndecl)

Set the called function to FNDECL.

GIMPLE function: tree gimple_call_return_type (const gcall *g)

Return the type returned by call statement G.

GIMPLE function: tree gimple_call_chain (gimple g)

Return the static chain for call statement G.

GIMPLE function: void gimple_call_set_chain (gcall *g, tree chain)

Set CHAIN to be the static chain for call statement G.

GIMPLE function: unsigned gimple_call_num_args (gimple g)

Return the number of arguments used by call statement G.

GIMPLE function: tree gimple_call_arg (gimple g, unsigned index)

Return the argument at position INDEX for call statement G. The first argument is 0.

GIMPLE function: tree * gimple_call_arg_ptr (gimple g, unsigned index)

Return a pointer to the argument at position INDEX for call statement G.

GIMPLE function: void gimple_call_set_arg (gimple g, unsigned index, tree arg)

Set ARG to be the argument at position INDEX for call statement G.

GIMPLE function: void gimple_call_set_tail (gcall *s)

Mark call statement S as being a tail call (i.e., a call just before the exit of a function). These calls are candidate for tail call optimization.

GIMPLE function: bool gimple_call_tail_p (gcall *s)

Return true if GIMPLE_CALL S is marked as a tail call.

GIMPLE function: bool gimple_call_noreturn_p (gimple s)

Return true if S is a noreturn call.

GIMPLE function: gimple gimple_call_copy_skip_args (gcall *stmt, bitmap args_to_skip)

Build a GIMPLE_CALL identical to STMT but skipping the arguments in the positions marked by the set ARGS_TO_SKIP.

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