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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
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* 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef CPU_SPARC_VM_REGISTERMAP_SPARC_HPP
#define CPU_SPARC_VM_REGISTERMAP_SPARC_HPP
// machine-dependent implemention for register maps
friend class frame;
friend class MethodHandles;
private:
intptr_t* _window; // register window save area (for L and I regs)
intptr_t* _younger_window; // previous save area (for O regs, if needed)
address pd_location(VMReg reg) const;
void pd_clear();
void pd_initialize_from(const RegisterMap* map) {
_window = map->_window;
_younger_window = map->_younger_window;
_location_valid[0] = 0; // avoid the shift_individual_registers game
}
void pd_initialize() {
_window = NULL;
_younger_window = NULL;
_location_valid[0] = 0; // avoid the shift_individual_registers game
}
void shift_window(intptr_t* sp, intptr_t* younger_sp) {
_window = sp;
_younger_window = younger_sp;
// Throw away locations for %i, %o, and %l registers:
// But do not throw away %g register locs.
if (_location_valid[0] != 0) shift_individual_registers();
}
void shift_individual_registers();
// When popping out of compiled frames, we make all IRegs disappear.
void make_integer_regs_unsaved() { _location_valid[0] = 0; }
#endif // CPU_SPARC_VM_REGISTERMAP_SPARC_HPP