[Webkit-unassigned] [Bug 182788] Test fails with fused multiply-add instructions in parseInt

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=182788

--- Comment #8 from Filip Pizlo <fpizlo at apple.com> ---
(In reply to Dominik Inführ from comment #6)
> Fused multiply-add only rounds/normalizes at the end, while regular
> multiply/add does it after each instruction. This is only a minor difference
> and usually this doesn't matter but this test fails due to it.

It's incorrect to use fused multiply/add because the ECMAScript spec defines exactly what multiply and add do, including rounding.  Fusing them violates the spec.

It's totally wrong to fix spec failures by changing the test.

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