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src/cpu/sparc/vm/c1_LinearScan_sparc.hpp

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  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
  26 #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
  27 
  28 inline bool LinearScan::is_processed_reg_num(int reg_num) {
  29   return reg_num < 26 || reg_num > 31;
  30 }
  31 
  32 inline int LinearScan::num_physical_regs(BasicType type) {
  33   // Sparc requires two cpu registers for long
  34   // and two cpu registers for double
  35 #ifdef _LP64
  36   if (type == T_DOUBLE) {
  37 #else
  38   if (type == T_DOUBLE || type == T_LONG) {
  39 #endif
  40     return 2;
  41   }
  42   return 1;
  43 }
  44 
  45 
  46 inline bool LinearScan::requires_adjacent_regs(BasicType type) {
  47 #ifdef _LP64
  48   return type == T_DOUBLE;
  49 #else
  50   return type == T_DOUBLE || type == T_LONG;
  51 #endif
  52 }
  53 
  54 inline bool LinearScan::is_caller_save(int assigned_reg) {
  55   return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg;
  56 }
  57 
  58 
  59 inline void LinearScan::pd_add_temps(LIR_Op* op) {
  60   // No special case behaviours yet
  61 }
  62 
  63 
  64 inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
  65   if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
  66     assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
  67     _first_reg = pd_first_callee_saved_reg;
  68     _last_reg = pd_last_callee_saved_reg;
  69     return true;
  70   } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS || cur->type() == T_METADATA) {
  71     _first_reg = pd_first_cpu_reg;


  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
  26 #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
  27 
  28 inline bool LinearScan::is_processed_reg_num(int reg_num) {
  29   return reg_num < 26 || reg_num > 31;
  30 }
  31 
  32 inline int LinearScan::num_physical_regs(BasicType type) {
  33   // Sparc requires two cpu registers for long
  34   // and two cpu registers for double

  35   if (type == T_DOUBLE) {



  36     return 2;
  37   }
  38   return 1;
  39 }
  40 
  41 
  42 inline bool LinearScan::requires_adjacent_regs(BasicType type) {

  43   return type == T_DOUBLE;



  44 }
  45 
  46 inline bool LinearScan::is_caller_save(int assigned_reg) {
  47   return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg;
  48 }
  49 
  50 
  51 inline void LinearScan::pd_add_temps(LIR_Op* op) {
  52   // No special case behaviours yet
  53 }
  54 
  55 
  56 inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
  57   if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
  58     assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
  59     _first_reg = pd_first_callee_saved_reg;
  60     _last_reg = pd_last_callee_saved_reg;
  61     return true;
  62   } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS || cur->type() == T_METADATA) {
  63     _first_reg = pd_first_cpu_reg;
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