742627 - IonMonkey: Suppress bailout spew in readFrameHeader() when called by ion::GetPcScript().

Status: NEW

(Core :: JavaScript Engine, defect)

Description

[Sean Stangl [:sstangl]]

Attachment: Suppress spew with a spotfix.

Using IONFLAGS=bailouts is currently a pretty miserable experience, since the majority of the spew on any major benchmark primarily consists of bogus spew from snapshot reading as part of ion::GetPcScript().

The proposed patch applies a messy spotfix that suppresses bailout spew in that context. GetPcScript() is the sole offender, and threading context data all the way through to the SnapshotReader is wasteful.

Comment 1

[Nicolas B. Pierron [:nbp]]

Comment on attachment 612456 [details] [diff] [review]
Suppress spew with a spotfix.

Review of attachment 612456 [details] [diff] [review]:
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This patch mute the bailout spew produced by GetPcScript which can trouble grep commands.  As GetPCScript cannot cause a bailout, this modification is good.