Closed Bug 560423 Opened 15 years ago Closed 15 years ago

JM: Allocate registers for local variables

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Platform:
x86
Linux
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED FIXED

People

(Reporter: dvander, Unassigned)

References

Details

Right now the register allocator in JM can only track the operation stack. This means a pattern like: GETLOCAL 0 GETLOCAL 1 ADD SETLOCAL 2 GETLOCAL 1 ADD Might look like (simplified): mov [ebx + LOCAL0], eax mov [ebx + LOCAL1], ecx add eax, ecx mov [ebx + LOCAL2], eax > mov [ebx + LOCAL1], ecx add eax, ecx The highlighted move is not necessary.
JM+fatval branch does this now.
Status: NEW → RESOLVED
Closed: 15 years ago
Resolution: --- → FIXED
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