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comparison src/cpu/sparc/vm/vm_version_sparc.hpp @ 643:c771b7f43bbf

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6378821: bitCount() should use POPC on SPARC processors and AMD+10h Summary: bitCount() should use POPC on SPARC processors where POPC is implemented directly in hardware. Reviewed-by: kvn, never
author twisti
date Fri, 13 Mar 2009 11:35:17 -0700
parents 6af0a709d52b
children c18cbe5936b8
comparison
equal deleted inserted replaced
642:660978a2a31a 643:c771b7f43bbf
27 enum Feature_Flag { 27 enum Feature_Flag {
28 v8_instructions = 0, 28 v8_instructions = 0,
29 hardware_mul32 = 1, 29 hardware_mul32 = 1,
30 hardware_div32 = 2, 30 hardware_div32 = 2,
31 hardware_fsmuld = 3, 31 hardware_fsmuld = 3,
32 v9_instructions = 4, 32 hardware_popc = 4,
33 vis1_instructions = 5, 33 v9_instructions = 5,
34 vis2_instructions = 6, 34 vis1_instructions = 6,
35 sun4v_instructions = 7 35 vis2_instructions = 7,
36 sun4v_instructions = 8
36 }; 37 };
37 38
38 enum Feature_Flag_Set { 39 enum Feature_Flag_Set {
39 unknown_m = 0, 40 unknown_m = 0,
40 all_features_m = -1, 41 all_features_m = -1,
41 42
42 v8_instructions_m = 1 << v8_instructions, 43 v8_instructions_m = 1 << v8_instructions,
43 hardware_mul32_m = 1 << hardware_mul32, 44 hardware_mul32_m = 1 << hardware_mul32,
44 hardware_div32_m = 1 << hardware_div32, 45 hardware_div32_m = 1 << hardware_div32,
45 hardware_fsmuld_m = 1 << hardware_fsmuld, 46 hardware_fsmuld_m = 1 << hardware_fsmuld,
47 hardware_popc_m = 1 << hardware_popc,
46 v9_instructions_m = 1 << v9_instructions, 48 v9_instructions_m = 1 << v9_instructions,
47 vis1_instructions_m = 1 << vis1_instructions, 49 vis1_instructions_m = 1 << vis1_instructions,
48 vis2_instructions_m = 1 << vis2_instructions, 50 vis2_instructions_m = 1 << vis2_instructions,
49 sun4v_m = 1 << sun4v_instructions, 51 sun4v_m = 1 << sun4v_instructions,
50 52
79 static bool has_v8() { return (_features & v8_instructions_m) != 0; } 81 static bool has_v8() { return (_features & v8_instructions_m) != 0; }
80 static bool has_v9() { return (_features & v9_instructions_m) != 0; } 82 static bool has_v9() { return (_features & v9_instructions_m) != 0; }
81 static bool has_hardware_mul32() { return (_features & hardware_mul32_m) != 0; } 83 static bool has_hardware_mul32() { return (_features & hardware_mul32_m) != 0; }
82 static bool has_hardware_div32() { return (_features & hardware_div32_m) != 0; } 84 static bool has_hardware_div32() { return (_features & hardware_div32_m) != 0; }
83 static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; } 85 static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; }
86 static bool has_hardware_popc() { return (_features & hardware_popc_m) != 0; }
84 static bool has_vis1() { return (_features & vis1_instructions_m) != 0; } 87 static bool has_vis1() { return (_features & vis1_instructions_m) != 0; }
85 static bool has_vis2() { return (_features & vis2_instructions_m) != 0; } 88 static bool has_vis2() { return (_features & vis2_instructions_m) != 0; }
86 89
87 static bool supports_compare_and_exchange() 90 static bool supports_compare_and_exchange()
88 { return has_v9(); } 91 { return has_v9(); }