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6812678: macro assembler needs delayed binding of a few constants (for 6655638)

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Minor assembler enhancements preparing for method handles

Reviewed-by: kvn
This commit is contained in:
John R Rose 2009-03-04 09:58:39 -08:00
parent 3e2ae68252
commit 07321dec65
17 changed files with 467 additions and 83 deletions
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34
hotspot/src/cpu/x86/vm/templateTable_x86_64.cpp
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@ -307,7 +307,7 @@ void TemplateTable::bipush() {
void TemplateTable::sipush() {
transition(vtos, itos);
__ load_unsigned_word(rax, at_bcp(1));
__ load_unsigned_short(rax, at_bcp(1));
__ bswapl(rax);
__ sarl(rax, 16);
}
@ -645,10 +645,10 @@ void TemplateTable::caload() {
// eax: index
// rdx: array
index_check(rdx, rax); // kills rbx
__ load_unsigned_word(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
__ load_unsigned_short(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
}
// iload followed by caload frequent pair
@ -663,10 +663,10 @@ void TemplateTable::fast_icaload() {
// rdx: array
__ pop_ptr(rdx);
index_check(rdx, rax); // kills rbx
__ load_unsigned_word(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
__ load_unsigned_short(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
}
void TemplateTable::saload() {
@ -675,10 +675,10 @@ void TemplateTable::saload() {
// eax: index
// rdx: array
index_check(rdx, rax); // kills rbx
__ load_signed_word(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_SHORT)));
__ load_signed_short(rax,
Address(rdx, rax,
Address::times_2,
arrayOopDesc::base_offset_in_bytes(T_SHORT)));
}
void TemplateTable::iload(int n) {
@ -2276,7 +2276,7 @@ void TemplateTable::getfield_or_static(int byte_no, bool is_static) {
__ cmpl(flags, ctos);
__ jcc(Assembler::notEqual, notChar);
// ctos
__ load_unsigned_word(rax, field);
__ load_unsigned_short(rax, field);
__ push(ctos);
// Rewrite bytecode to be faster
if (!is_static) {
@ -2288,7 +2288,7 @@ void TemplateTable::getfield_or_static(int byte_no, bool is_static) {
__ cmpl(flags, stos);
__ jcc(Assembler::notEqual, notShort);
// stos
__ load_signed_word(rax, field);
__ load_signed_short(rax, field);
__ push(stos);
// Rewrite bytecode to be faster
if (!is_static) {
@ -2751,10 +2751,10 @@ void TemplateTable::fast_accessfield(TosState state) {
__ movsbl(rax, field);
break;
case Bytecodes::_fast_sgetfield:
__ load_signed_word(rax, field);
__ load_signed_short(rax, field);
break;
case Bytecodes::_fast_cgetfield:
__ load_unsigned_word(rax, field);
__ load_unsigned_short(rax, field);
break;
case Bytecodes::_fast_fgetfield:
__ movflt(xmm0, field);