643272 - TI: Assertion failure: isGet(), at ./methodjit/PolyIC.h:518

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Christian Holler (:decoder)]

Attachment: shell testcase, unpack, chdir and run main.js with options "-n -m -a"

The attached testcase either crashes or asserts on TI tip (tested on 64 bit). The original testcase crashed in [JSC::X86Assembler::cmpl_im], the reduce testcase here asserts instead. The test itself is fragile, minimization was only possible while keeping the lengths of all filenames involved.

Comment 1

[Brian Hackett [Laid off!]]

Recompilations could be triggered by obj->lookupProperty (e.g. by resolve hooks creating prototype objects for scripted functions), which the IC code did not anticipate and needs to watch for.

http://hg.mozilla.org/projects/jaegermonkey/rev/133a01a817de