YourWishes/jerryscript
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Rearrange fields of ecma_property_t to be naturally aligned. Packed attribute and __extension__ keywords are removed. The standard approach reduced the binary size by 2K.

Browse Source 
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2016-03-02 06:24:25 -08:00
parent 86cdc4b482
commit b8b587f76c
31 changed files with 383 additions and 431 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/ecma/base/ecma-globals.h
+40 -56
View File
@@ -82,16 +82,6 @@ typedef enum
ECMA_SIMPLE_VALUE__COUNT /** count of simple ecma values */
} ecma_simple_value_t;
/**
* Type of ecma-property
*/
typedef enum
{
ECMA_PROPERTY_NAMEDDATA, /**< named data property */
ECMA_PROPERTY_NAMEDACCESSOR, /**< named accessor property */
ECMA_PROPERTY_INTERNAL /**< internal property */
} ecma_property_type_t;
/**
* Description of an ecma value
*
@@ -213,84 +203,78 @@ typedef enum
} ecma_property_configurable_value_t;
/**
* Width of internal property type field's width
* Property's flag list.
*/
#define ECMA_PROPERTY_INTERNAL_PROPERTY_TYPE_WIDTH (5)
typedef enum
{
ECMA_PROPERTY_FLAG_NAMEDDATA = 1u << 0, /**< property is named data */
ECMA_PROPERTY_FLAG_NAMEDACCESSOR = 1u << 1, /**< property is named accessor */
ECMA_PROPERTY_FLAG_INTERNAL = 1u << 2, /**< property is internal property */
ECMA_PROPERTY_FLAG_CONFIGURABLE = 1u << 3, /**< property is configurable */
ECMA_PROPERTY_FLAG_ENUMERABLE = 1u << 4, /**< property is enumerable */
ECMA_PROPERTY_FLAG_WRITABLE = 1u << 5, /**< property is writable */
ECMA_PROPERTY_FLAG_LCACHED = 1u << 6, /**< property is lcached */
} ecma_property_flags_t;
/**
* Pair of pointers - to property's getter and setter
*/
typedef struct
{
__extension__ mem_cpointer_t getter_p : ECMA_POINTER_FIELD_WIDTH; /**< pointer to getter object */
__extension__ mem_cpointer_t setter_p : ECMA_POINTER_FIELD_WIDTH; /**< pointer to setter object */
mem_cpointer_t getter_p; /**< pointer to getter object */
mem_cpointer_t setter_p; /**< pointer to setter object */
} ecma_getter_setter_pointers_t;
/**
* Description of ecma-property
*/
typedef struct __attr_packed___ ecma_property_t
typedef struct ecma_property_t
{
/** Property's type (ecma_property_type_t) */
unsigned int type : 2;
/** Compressed pointer to next property */
__extension__ mem_cpointer_t next_property_p : ECMA_POINTER_FIELD_WIDTH;
mem_cpointer_t next_property_p;
/** Property's details (depending on Type) */
/** Property's flags (ecma_property_flags_t) */
uint8_t flags;
/** Property's header part (depending on Type) */
union
{
/** Description of named data property */
struct __attr_packed___ ecma_named_data_property_t
/** Named data property value upper bits */
uint8_t named_data_property_value_high;
/** Internal property type */
uint8_t internal_property_type;
} h;
/** Property's value part (depending on Type) */
union
{
/** Description of named data property (second part) */
struct
{
/** Value */
__extension__ ecma_value_t value : ECMA_VALUE_SIZE;
/** Compressed pointer to property's name (pointer to String) */
__extension__ mem_cpointer_t name_p : ECMA_POINTER_FIELD_WIDTH;
mem_cpointer_t name_p;
/** Flag indicating whether the property is registered in LCache */
unsigned int is_lcached : 1;
/** Attribute 'Writable' (ecma_property_writable_value_t) */
unsigned int writable : 1;
/** Attribute 'Enumerable' (ecma_property_enumerable_value_t) */
unsigned int enumerable : 1;
/** Attribute 'Configurable' (ecma_property_configurable_value_t) */
unsigned int configurable : 1;
/** Lower 16 bits of value */
uint16_t value_low;
} named_data_property;
/** Description of named accessor property */
struct __attr_packed___ ecma_named_accessor_property_t
/** Description of named accessor property (second part) */
struct
{
/** Compressed pointer to property's name (pointer to String) */
__extension__ mem_cpointer_t name_p : ECMA_POINTER_FIELD_WIDTH;
/** Attribute 'Enumerable' (ecma_property_enumerable_value_t) */
unsigned int enumerable : 1;
/** Attribute 'Configurable' (ecma_property_configurable_value_t) */
unsigned int configurable : 1;
/** Flag indicating whether the property is registered in LCache */
unsigned int is_lcached : 1;
mem_cpointer_t name_p;
/** Compressed pointer to pair of pointers - to property's getter and setter */
__extension__ mem_cpointer_t getter_setter_pair_cp : ECMA_POINTER_FIELD_WIDTH;
mem_cpointer_t getter_setter_pair_cp;
} named_accessor_property;
/** Description of internal property */
struct __attr_packed___ ecma_internal_property_t
/** Description of internal property (second part) */
struct
{
/** Internal property's type */
unsigned int type : ECMA_PROPERTY_INTERNAL_PROPERTY_TYPE_WIDTH;
/** Value (may be a compressed pointer) */
uint32_t value;
} internal_property;
} u;
} v;
} ecma_property_t;
/**