Closed Bug 658486 Opened 13 years ago Closed 13 years ago

Add loop hints to IonMonkey basic blocks for register allocation

Categories

(Core :: JavaScript Engine, defect)

defect
Not set
normal

Tracking

()

RESOLVED FIXED

People

(Reporter: adrake, Assigned: adrake)

References

Details

Attachments

(1 file, 2 obsolete files)

The linear scan liveness analysis requires knowledge of loop headers and, for optimization purposes, loop blocks and their respective depths themselves. These hints can be efficiently provided by IonMonkey during SSA construction.
This adds a hint to the loop header as to the location of the end of the loop, which is needed for linear liveness analysis.
Attachment #534040 - Attachment is obsolete: true
Attached patch Patch v1Splinter Review
Rebased, should be good to land on top of bug 659241 .
Attachment #534043 - Attachment is obsolete: true
Attachment #534717 - Flags: review?(dvander)
Depends on: 659241
Attachment #534717 - Flags: review?(dvander) → review+
http://hg.mozilla.org/users/danderson_mozilla.com/ionmonkey/rev/2f5a6b9e7a54
Status: ASSIGNED → RESOLVED
Closed: 13 years ago
Resolution: --- → FIXED
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