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6829192: JSR 292 needs to support 64-bit x86

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Changes for method handles and invokedynamic

Reviewed-by: kvn
This commit is contained in:
Christian Thalinger 2009-12-16 12:48:04 +01:00
parent bcf018d026
commit fae9c37803
12 changed files with 157 additions and 82 deletions
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40
hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp
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@ -185,12 +185,30 @@ void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(
}
void InterpreterMacroAssembler::get_cache_index_at_bcp(Register index,
int bcp_offset,
bool giant_index) {
assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
if (!giant_index) {
load_unsigned_short(index, Address(r13, bcp_offset));
} else {
assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic");
movl(index, Address(r13, bcp_offset));
// Check if the secondary index definition is still ~x, otherwise
// we have to change the following assembler code to calculate the
// plain index.
assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line");
notl(index); // convert to plain index
}
}
void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
Register index,
int bcp_offset) {
assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
int bcp_offset,
bool giant_index) {
assert(cache != index, "must use different registers");
load_unsigned_short(index, Address(r13, bcp_offset));
get_cache_index_at_bcp(index, bcp_offset, giant_index);
movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
// convert from field index to ConstantPoolCacheEntry index
@ -200,10 +218,10 @@ void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache,
void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache,
Register tmp,
int bcp_offset) {
assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
int bcp_offset,
bool giant_index) {
assert(cache != tmp, "must use different register");
load_unsigned_short(tmp, Address(r13, bcp_offset));
get_cache_index_at_bcp(tmp, bcp_offset, giant_index);
assert(sizeof(ConstantPoolCacheEntry) == 4 * wordSize, "adjust code below");
// convert from field index to ConstantPoolCacheEntry index
// and from word offset to byte offset
@ -1236,7 +1254,8 @@ void InterpreterMacroAssembler::profile_final_call(Register mdp) {
void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
Register mdp,
Register reg2) {
Register reg2,
bool receiver_can_be_null) {
if (ProfileInterpreter) {
Label profile_continue;
@ -1246,8 +1265,15 @@ void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
// We are making a call. Increment the count.
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
Label skip_receiver_profile;
if (receiver_can_be_null) {
testptr(receiver, receiver);
jcc(Assembler::zero, skip_receiver_profile);
}
// Record the receiver type.
record_klass_in_profile(receiver, mdp, reg2);
bind(skip_receiver_profile);
// The method data pointer needs to be updated to reflect the new target.
update_mdp_by_constant(mdp,