28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
33 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
34
35 enum platform_dependent_constants {
36 code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
37 code_size2 = 24000 // simply increase if too small (assembler will crash if too small)
38 };
39
40 // CRC32 Intrinsics.
41 #define CRC32_COLUMN_SIZE 256
42 #define CRC32_BYFOUR
43 #ifdef CRC32_BYFOUR
44 #define CRC32_TABLES 8
45 #else
46 #define CRC32_TABLES 1
47 #endif
48 #define CRC32_CONSTANTS_SIZE 1084
49 #define CRC32_BARRET_CONSTANTS 10
50
51 class ppc64 {
52 friend class StubGenerator;
53
54 private:
55
56 // CRC32 Intrinsics.
57 static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
58 static juint _crc32c_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
59 static juint *_crc_constants, *_crc_barret_constants;
60 static juint *_crc32c_constants, *_crc32c_barret_constants;
61
62 public:
63
64 // CRC32 Intrinsics.
65 static void generate_load_crc_table_addr(MacroAssembler* masm, Register table);
66 static void generate_load_crc_constants_addr(MacroAssembler* masm, Register table);
67 static void generate_load_crc_barret_constants_addr(MacroAssembler* masm, Register table);
68 static void generate_load_crc32c_table_addr(MacroAssembler* masm, Register table);
69 static void generate_load_crc32c_constants_addr(MacroAssembler* masm, Register table);
70 static void generate_load_crc32c_barret_constants_addr(MacroAssembler* masm, Register table);
71 static juint* generate_crc_constants(juint reverse_poly);
72 static juint* generate_crc_barret_constants(juint reverse_poly);
73 };
74
75 #endif // CPU_PPC_VM_STUBROUTINES_PPC_HPP
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28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
33 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
34
35 enum platform_dependent_constants {
36 code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
37 code_size2 = 24000 // simply increase if too small (assembler will crash if too small)
38 };
39
40 // CRC32 Intrinsics.
41 #define CRC32_COLUMN_SIZE 256
42 #define CRC32_BYFOUR
43 #ifdef CRC32_BYFOUR
44 #define CRC32_TABLES 8
45 #else
46 #define CRC32_TABLES 1
47 #endif
48
49 #define REVERSE_CRC32_POLY 0xEDB88320
50 #define REVERSE_CRC32C_POLY 0x82F63B78
51 #define INVERSE_REVERSE_CRC32_POLY 0x1aab14226ull
52 #define INVERSE_REVERSE_CRC32C_POLY 0x105fd79bdull
53 #define CRC32_UNROLL_FACTOR 2048
54 #define CRC32_UNROLL_FACTOR2 8
55
56
57 class ppc64 {
58 friend class StubGenerator;
59
60 private:
61
62 // CRC32 Intrinsics.
63 static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
64 static juint _crc32c_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
65 static juint *_crc_constants;
66 static juint *_crc32c_constants;
67
68 public:
69
70 // CRC32 Intrinsics.
71 static void generate_load_crc_table_addr(MacroAssembler* masm, Register table);
72 static void generate_load_crc_constants_addr(MacroAssembler* masm, Register table);
73 static void generate_load_crc32c_table_addr(MacroAssembler* masm, Register table);
74 static void generate_load_crc32c_constants_addr(MacroAssembler* masm, Register table);
75 static juint* generate_crc_constants(juint reverse_poly);
76 };
77
78 #endif // CPU_PPC_VM_STUBROUTINES_PPC_HPP
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