The implementation is simplified and optimized
resulting the removal a large amount of code.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The cache stores only real properties now, because storing NULLs has
little benefit according to tests. Since only real properties are
stored now, there is no need to create real references to objects
and property names, which reduces the keeping of dead objects after
garbage collection.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The ecma_op_to_boolean return value is changed to bool for faster
evaluation, and no need to swap operandos of relational compare.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
the three boolean arguments of ecma_create_named_data_property and the
two boolean arguments of ecma_create_named_accessor_property are combined
into one uint8_t argument. On ARM-32 it is preferred to have less than
four arguments, since these arguments can be passed in registers.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
function is removed and incorporated into ecma_op_general_object_put. Also most
properties are directly created / updated instead of using ecma_builtin_helper_def_prop.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
- Branch argument information is encoded in the vm byte
code data, so CBC flags are not loaded anymore
- The free_flags variable is removed from the vm_loop
- Two cases are removed from "get arguments", argument
processing is simplified
- The two opcode tables are merged to one
- The VM_OC_POP opcode has no result, so the break is changed to continue.
- The VM_OC_PUSH_NUMBER can use ecma_make_integer_value.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
counter is one, dereferencing the value frees its allocated memory.
In this case we return early.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
String, Boolean) to use ecma-values. When the value of a Number object is
a small integer number, this change reduces the memory consumption, since no
double is allocated.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
and comments. Space consumed by opcode triplets are reduced to 16 bits
down from 32 bits. This reduces the opcode triplet tables by 220 bytes.
New symbolic constants and defines were also added to describe common
operations.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
names were replaced by empty strings before that. The snapshot form
of tests/jerry/arguments.js fails because of this issue.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
itself seems a step back, but the primary aim is opening future
optimization opportunities. The list of changes follows:
- Property is changed to be an abstract type, which has type, flags,
and a value. It does not have a name anymore and property pointers
cannot be compressed.
- Full (32 bit) ecma values can be property values. This allows
using non-compressed pointers for ecma values in the future.
- The property chain is not restricted to the same item anymore,
it can contain hash maps, arrays in the future.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The positive side effect is that the maximum Jerry memory is increased to 512K.
Furthermore a slight (1.3%) performance improvement was measured on RPi2 with
SunSpider.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
memory consumption, because the new allocator uses less memory if
the size as available when a block is freed. Snapshot generation
is also simplified.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Remove ecma_completion_value_t, and add an extra bit to
ecma_value_t to represent errors. From the long list of
completion types only normal and error remained.
JerryScript-DCO-1.0-Signed-off-by: László Langó [email protected]
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Zoltan Herczeg