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ACPICA: iASL: Enhancement for constant folding.

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ACPICA commit 4f9e950d41cd6f6c704d5d6cf518647620d65e99

Add support to fold expressions with a target operand -- these are
folded and converted to a Store operator:

Add (4, 3, INT1) --> Store (7, INT1)

Also supports ASL+ constructs:

INT1 = 4 + 3 --> Store (7, INT1)

Linux kernel is not affected by this patch.

Link: https://github.com/acpica/acpica/commit/4f9e950d
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2015-04-13 11:50:26 +08:00 committed by Rafael J. Wysocki
parent 8b0b1a9976
commit 2e7cc46a0f
1 changed files with 0 additions and 5 deletions
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5
drivers/acpi/acpica/acstruct.h
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@ -68,11 +68,6 @@
#define ACPI_WALK_METHOD 0x01
#define ACPI_WALK_METHOD_RESTART 0x02
/* Flags for iASL compiler only */
#define ACPI_WALK_CONST_REQUIRED 0x10
#define ACPI_WALK_CONST_OPTIONAL 0x20
struct acpi_walk_state {
struct acpi_walk_state *next; /* Next walk_state in list */
u8 descriptor_type; /* To differentiate various internal objs */