Mercurial > hg > graal-jvmci-8
comparison src/share/vm/prims/methodHandles.hpp @ 1849:5beba6174298
6987555: JSR 292 unboxing to a boolean value fails on big-endian SPARC
Reviewed-by: never, jrose
author | twisti |
---|---|
date | Wed, 13 Oct 2010 01:19:43 -0700 |
parents | d257356e35f0 |
children | f95d63e2154a |
comparison
equal
deleted
inserted
replaced
1847:a932f331ef90 | 1849:5beba6174298 |
---|---|
224 static int stack_move_unit() { | 224 static int stack_move_unit() { |
225 return frame::interpreter_frame_expression_stack_direction() * Interpreter::stackElementWords; | 225 return frame::interpreter_frame_expression_stack_direction() * Interpreter::stackElementWords; |
226 } | 226 } |
227 | 227 |
228 enum { CONV_VMINFO_SIGN_FLAG = 0x80 }; | 228 enum { CONV_VMINFO_SIGN_FLAG = 0x80 }; |
229 static int adapter_subword_vminfo(BasicType dest) { | 229 // Shift values for prim-to-prim conversions. |
230 if (dest == T_BOOLEAN) return (BitsPerInt - 1); | 230 static int adapter_prim_to_prim_subword_vminfo(BasicType dest) { |
231 if (dest == T_CHAR) return (BitsPerInt - 16); | 231 if (dest == T_BOOLEAN) return (BitsPerInt - 1); // boolean is 1 bit |
232 if (dest == T_BYTE) return (BitsPerInt - 8) | CONV_VMINFO_SIGN_FLAG; | 232 if (dest == T_CHAR) return (BitsPerInt - BitsPerShort); |
233 if (dest == T_SHORT) return (BitsPerInt - 16) | CONV_VMINFO_SIGN_FLAG; | 233 if (dest == T_BYTE) return (BitsPerInt - BitsPerByte ) | CONV_VMINFO_SIGN_FLAG; |
234 if (dest == T_SHORT) return (BitsPerInt - BitsPerShort) | CONV_VMINFO_SIGN_FLAG; | |
235 return 0; // case T_INT | |
236 } | |
237 // Shift values for unboxing a primitive. | |
238 static int adapter_unbox_subword_vminfo(BasicType dest) { | |
239 if (dest == T_BOOLEAN) return (BitsPerInt - BitsPerByte ); // implemented as 1 byte | |
240 if (dest == T_CHAR) return (BitsPerInt - BitsPerShort); | |
241 if (dest == T_BYTE) return (BitsPerInt - BitsPerByte ) | CONV_VMINFO_SIGN_FLAG; | |
242 if (dest == T_SHORT) return (BitsPerInt - BitsPerShort) | CONV_VMINFO_SIGN_FLAG; | |
234 return 0; // case T_INT | 243 return 0; // case T_INT |
235 } | 244 } |
236 // Here is the transformation the i2i adapter must perform: | 245 // Here is the transformation the i2i adapter must perform: |
237 static int truncate_subword_from_vminfo(jint value, int vminfo) { | 246 static int truncate_subword_from_vminfo(jint value, int vminfo) { |
238 jint tem = value << vminfo; | 247 jint tem = value << vminfo; |