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6667615: (Escape Analysis) extend MDO to cache arguments escape state

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Use MDO to cache arguments escape state determined by the byte code escape analyzer.

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2008-03-11 19:00:38 -07:00
parent 96e8bcb6aa
commit b64d5e4209
8 changed files with 306 additions and 29 deletions
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8
hotspot/src/share/vm/classfile/vmSymbols.cpp
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@ -318,6 +318,11 @@ inline bool match_F_SN(jshort flags) {
const int neg = JVM_ACC_SYNCHRONIZED;
return (flags & (req | neg)) == req;
}
inline bool match_F_RNY(jshort flags) {
const int req = JVM_ACC_NATIVE | JVM_ACC_SYNCHRONIZED;
const int neg = JVM_ACC_STATIC;
return (flags & (req | neg)) == req;
}
// These are for forming case labels:
#define ID3(x, y, z) (( jint)(z) + \
@ -359,6 +364,7 @@ const char* vmIntrinsics::short_name_as_C_string(vmIntrinsics::ID id, char* buf,
case F_RN: fname = "native "; break;
case F_SN: fname = "native static "; break;
case F_S: fname = "static "; break;
case F_RNY:fname = "native synchronized "; break;
}
const char* kptr = strrchr(kname, '/');
if (kptr != NULL) kname = kptr + 1;
@ -485,7 +491,7 @@ void vmIntrinsics::verify_method(ID actual_id, methodOop m) {
if (PrintMiscellaneous && (WizardMode || Verbose)) {
tty->print_cr("*** misidentified method; %s(%d) should be %s(%d):",
declared_name, declared_id, actual_name, actual_id);
m->print_short_name(tty);
mh()->print_short_name(tty);
tty->cr();
}
}