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Merge branch 'master' into new_gc

db4
Slava Pestov 2009-10-06 01:31:50 -05:00
parent 47c735d81d 884ac79423
commit e2fcec6a99
3 changed files with 37 additions and 18 deletions
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6
vm/code_block.cpp
View File

@ -445,9 +445,13 @@ code_block *factor_vm::add_code_block(cell type, cell code_, cell labels_, cell
compiled->type = type;
compiled->last_scan = data->nursery();
compiled->needs_fixup = true;
compiled->relocation = relocation.value();
/* slight space optimization */
if(relocation.type() == BYTE_ARRAY_TYPE && array_capacity(relocation.untagged()) == 0)
compiled->relocation = F;
else
compiled->relocation = relocation.value();
if(literals.type() == ARRAY_TYPE && array_capacity(literals.untagged()) == 0)
compiled->literals = F;
else

47
vm/quotations.cpp
View File

@ -103,6 +103,28 @@ bool quotation_jit::stack_frame_p()
return false;
}
bool quotation_jit::trivial_quotation_p(array *elements)
{
return array_capacity(elements) == 1 && tagged<object>(array_nth(elements,0)).type_p(WORD_TYPE);
}
void quotation_jit::emit_quot(cell quot_)
{
gc_root<quotation> quot(quot_,parent_vm);
array *elements = parent_vm->untag<array>(quot->array);
/* If the quotation consists of a single word, compile a direct call
to the word. */
if(trivial_quotation_p(elements))
literal(array_nth(elements,0));
else
{
if(compiling) parent_vm->jit_compile(quot.value(),relocate);
literal(quot.value());
}
}
/* Allocates memory */
void quotation_jit::iterate_quotation()
{
@ -194,14 +216,8 @@ void quotation_jit::iterate_quotation()
if(stack_frame) emit(parent_vm->userenv[JIT_EPILOG]);
tail_call = true;
if(compiling)
{
parent_vm->jit_compile(array_nth(elements.untagged(),i),relocate);
parent_vm->jit_compile(array_nth(elements.untagged(),i + 1),relocate);
}
literal(array_nth(elements.untagged(),i));
literal(array_nth(elements.untagged(),i + 1));
emit_quot(array_nth(elements.untagged(),i));
emit_quot(array_nth(elements.untagged(),i + 1));
emit(parent_vm->userenv[JIT_IF]);
i += 2;
@ -209,25 +225,22 @@ void quotation_jit::iterate_quotation()
/* dip */
else if(fast_dip_p(i,length))
{
if(compiling)
parent_vm->jit_compile(obj.value(),relocate);
emit_with(parent_vm->userenv[JIT_DIP],obj.value());
emit_quot(obj.value());
emit(parent_vm->userenv[JIT_DIP]);
i++;
}
/* 2dip */
else if(fast_2dip_p(i,length))
{
if(compiling)
parent_vm->jit_compile(obj.value(),relocate);
emit_with(parent_vm->userenv[JIT_2DIP],obj.value());
emit_quot(obj.value());
emit(parent_vm->userenv[JIT_2DIP]);
i++;
}
/* 3dip */
else if(fast_3dip_p(i,length))
{
if(compiling)
parent_vm->jit_compile(obj.value(),relocate);
emit_with(parent_vm->userenv[JIT_3DIP],obj.value());
emit_quot(obj.value());
emit(parent_vm->userenv[JIT_3DIP]);
i++;
}
else

2
vm/quotations.hpp
View File

@ -13,6 +13,8 @@ struct quotation_jit : public jit {
void emit_mega_cache_lookup(cell methods, fixnum index, cell cache);
bool primitive_call_p(cell i, cell length);
bool trivial_quotation_p(array *elements);
void emit_quot(cell quot);
bool fast_if_p(cell i, cell length);
bool fast_dip_p(cell i, cell length);
bool fast_2dip_p(cell i, cell length);