2041
2042 int Matcher::regnum_to_fpu_offset(int regnum) {
2043 // No user for this method?
2044 Unimplemented();
2045 return 999;
2046 }
2047
2048 const bool Matcher::convL2FSupported(void) {
2049 // fcfids can do the conversion (>= Power7).
2050 // fcfid + frsp showed rounding problem when result should be 0x3f800001.
2051 return VM_Version::has_fcfids(); // False means that conversion is done by runtime call.
2052 }
2053
2054 // Vector width in bytes.
2055 const int Matcher::vector_width_in_bytes(BasicType bt) {
2056 assert(MaxVectorSize == 8, "");
2057 return 8;
2058 }
2059
2060 // Vector ideal reg.
2061 const int Matcher::vector_ideal_reg(int size) {
2062 assert(MaxVectorSize == 8 && size == 8, "");
2063 return Op_RegL;
2064 }
2065
2066 const int Matcher::vector_shift_count_ideal_reg(int size) {
2067 fatal("vector shift is not supported");
2068 return Node::NotAMachineReg;
2069 }
2070
2071 // Limits on vector size (number of elements) loaded into vector.
2072 const int Matcher::max_vector_size(const BasicType bt) {
2073 assert(is_java_primitive(bt), "only primitive type vectors");
2074 return vector_width_in_bytes(bt)/type2aelembytes(bt);
2075 }
2076
2077 const int Matcher::min_vector_size(const BasicType bt) {
2078 return max_vector_size(bt); // Same as max.
2079 }
2080
2081 // PPC doesn't support misaligned vectors store/load.
2082 const bool Matcher::misaligned_vectors_ok() {
2083 return false;
2084 }
2085
2086 // PPC AES support not yet implemented
2087 const bool Matcher::pass_original_key_for_aes() {
2088 return false;
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2041
2042 int Matcher::regnum_to_fpu_offset(int regnum) {
2043 // No user for this method?
2044 Unimplemented();
2045 return 999;
2046 }
2047
2048 const bool Matcher::convL2FSupported(void) {
2049 // fcfids can do the conversion (>= Power7).
2050 // fcfid + frsp showed rounding problem when result should be 0x3f800001.
2051 return VM_Version::has_fcfids(); // False means that conversion is done by runtime call.
2052 }
2053
2054 // Vector width in bytes.
2055 const int Matcher::vector_width_in_bytes(BasicType bt) {
2056 assert(MaxVectorSize == 8, "");
2057 return 8;
2058 }
2059
2060 // Vector ideal reg.
2061 const Opcodes Matcher::vector_ideal_reg(int size) {
2062 assert(MaxVectorSize == 8 && size == 8, "");
2063 return Opcodes::Op_RegL;
2064 }
2065
2066 const Opcodes Matcher::vector_shift_count_ideal_reg(int size) {
2067 fatal("vector shift is not supported");
2068 return Opcodes::NotAMachineReg;
2069 }
2070
2071 // Limits on vector size (number of elements) loaded into vector.
2072 const int Matcher::max_vector_size(const BasicType bt) {
2073 assert(is_java_primitive(bt), "only primitive type vectors");
2074 return vector_width_in_bytes(bt)/type2aelembytes(bt);
2075 }
2076
2077 const int Matcher::min_vector_size(const BasicType bt) {
2078 return max_vector_size(bt); // Same as max.
2079 }
2080
2081 // PPC doesn't support misaligned vectors store/load.
2082 const bool Matcher::misaligned_vectors_ok() {
2083 return false;
2084 }
2085
2086 // PPC AES support not yet implemented
2087 const bool Matcher::pass_original_key_for_aes() {
2088 return false;
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