8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 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 #include "precompiled.hpp" 26 #include "opto/compile.hpp" 27 #include "opto/regmask.hpp" 28 #ifdef TARGET_ARCH_MODEL_x86_32 29 # include "adfiles/ad_x86_32.hpp" 30 #endif 31 #ifdef TARGET_ARCH_MODEL_x86_64 32 # include "adfiles/ad_x86_64.hpp" 33 #endif 34 #ifdef TARGET_ARCH_MODEL_sparc 35 # include "adfiles/ad_sparc.hpp" 36 #endif 37 #ifdef TARGET_ARCH_MODEL_zero 38 # include "adfiles/ad_zero.hpp" 39 #endif 40 #ifdef TARGET_ARCH_MODEL_arm 41 # include "adfiles/ad_arm.hpp" 42 #endif 43 #ifdef TARGET_ARCH_MODEL_ppc_32 44 # include "adfiles/ad_ppc_32.hpp" 45 #endif 46 #ifdef TARGET_ARCH_MODEL_ppc_64 47 # include "adfiles/ad_ppc_64.hpp" 48 #endif 49 50 #define RM_SIZE _RM_SIZE /* a constant private to the class RegMask */ 51 52 //-------------Non-zero bit search methods used by RegMask--------------------- 53 // Find lowest 1, or return 32 if empty 54 int find_lowest_bit( uint32 mask ) { 55 int n = 0; 56 if( (mask & 0xffff) == 0 ) { 57 mask >>= 16; 58 n += 16; 59 } 60 if( (mask & 0xff) == 0 ) { 61 mask >>= 8; 62 n += 8; 63 } 64 if( (mask & 0xf) == 0 ) { 65 mask >>= 4; 66 n += 4; | 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 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 #include "precompiled.hpp" 26 #include "opto/compile.hpp" 27 #include "opto/regmask.hpp" 28 #if defined AD_MD_HPP 29 # include AD_MD_HPP 30 #elif defined TARGET_ARCH_MODEL_x86_32 31 # include "adfiles/ad_x86_32.hpp" 32 #elif defined TARGET_ARCH_MODEL_x86_64 33 # include "adfiles/ad_x86_64.hpp" 34 #elif defined TARGET_ARCH_MODEL_sparc 35 # include "adfiles/ad_sparc.hpp" 36 #elif defined TARGET_ARCH_MODEL_zero 37 # include "adfiles/ad_zero.hpp" 38 #elif defined TARGET_ARCH_MODEL_ppc_64 39 # include "adfiles/ad_ppc_64.hpp" 40 #endif 41 42 #define RM_SIZE _RM_SIZE /* a constant private to the class RegMask */ 43 44 //-------------Non-zero bit search methods used by RegMask--------------------- 45 // Find lowest 1, or return 32 if empty 46 int find_lowest_bit( uint32 mask ) { 47 int n = 0; 48 if( (mask & 0xffff) == 0 ) { 49 mask >>= 16; 50 n += 16; 51 } 52 if( (mask & 0xff) == 0 ) { 53 mask >>= 8; 54 n += 8; 55 } 56 if( (mask & 0xf) == 0 ) { 57 mask >>= 4; 58 n += 4; |