[Webkit-unassigned] [Bug 122627] DFG: Add JIT support for LogicalNot(String/StringIdent)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122627





--- Comment #7 from Filip Pizlo <fpizlo at apple.com>  2013-10-11 11:12:07 PST ---
(In reply to comment #6)
> compare32 does not take an address, but I will fold the immediate into the comparison and add a test case.

Oh, right!  But there is this thing:

    void test32(ResultCondition cond, Address address, TrustedImm32 mask, RegisterID dest)

You'd use TrustedImm32(-1) as the mask.  This will Do The Right Thing on both x86 and arm.  On x86 you'll get a cmpl $0, (memory). On arm you'll get a ldr and tst.

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