Closed
Bug 736315
Opened 13 years ago
Closed 11 years ago
IonMonkey: Create JSOP_BAIL and a bail statement for the shell.
Categories
(Core :: JavaScript Engine, defect)
Core
JavaScript Engine
Tracking
()
RESOLVED
DUPLICATE
of bug 899735
People
(Reporter: sstangl, Unassigned)
Details
(Whiteboard: [ion:t])
IonMonkey should be able to handle bailing from arbitrary points in the code. Currently it is difficult to test this, since bailout behavior is highly dependent on implementation details that change frequently. There is no good way to cause a bailout that will necessarily remain valid in the future.
For the purpose of writing test cases involving bailout behavior, and for facilitating fuzzing, we should have a dedicated statement to force a bailout.
Comment 1•13 years ago
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Identically, some tests are relying on the fact that we are switching between different frame types. and it would be nice to have JSOP_DONOTCOMPILE (ALL|ION|JM). If you don't want to lose JSOP slots, you can just use one with an immediate value such as:
JSOP_TESTSUITE [ BAILOUT | DO_NOT_IONIZE | … ]
some tricks that are very stable:
|with| prevents compilation in either JIT
|try| prevents compilation in IonMonkey
a bailout can be triggered with: 0()
Comment 3•13 years ago
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Related: bug 723985 (adding a "use nojit" directive). But it's at whole-script granularity.
Updated•12 years ago
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Whiteboard: [ion:t]
Updated•11 years ago
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Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → DUPLICATE
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Description
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