Segher Boessenkool <seg...@kernel.crashing.org> writes: > On Wed, Sep 11, 2019 at 08:08:38PM +0100, Richard Sandiford wrote: >> hard_reg_set_iterator hrsi; >> - EXECUTE_IF_SET_IN_HARD_REG_SET (regs_invalidated_by_call, 0, i, hrsi) >> + EXECUTE_IF_SET_IN_HARD_REG_SET (abi.full_and_partial_reg_clobbers (), >> + 0, i, hrsi) > > So "abi" in that means calls?
"abi" is the interface of the callee function, taking things like function attributes and -fipa-ra into account. The register sets are describing what the callee does rather than what calls to it do. E.g. on targets that allow linker stubs to be inserted between calls, the scratch registers reserved for linker stubs are still call-clobbered, even if the target of the call doesn't use them. (Those call clobbers are represented separately, at least when TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS is true. When it's false we don't use -fipa-ra information at all.) > It is not such a great name like that. Since its children are > very_long_names, it doesn't need to be only three chars itself, > either? OK, what name would you prefer? Richard
