[Webkit-unassigned] [Bug 149051] Implement switch statements in WebAssembly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=149051

--- Comment #2 from Sukolsak Sakshuwong <sukolsak at gmail.com> ---
Here's what buildSwitch() in the LLVM IR generator will look like:

void buildSwitch(LValue expression, const Vector<int64_t>& cases, const Vector<LBasicBlock>& targets, LBasicBlock defaultTarget)
{
    Vector<FTL::SwitchCase> switchCases;
    switchCases.reserveInitialCapacity(cases.size());
    for (size_t i = 0; i < cases.size(); ++i)
        switchCases.uncheckedAppend(FTL::SwitchCase(m_out.constInt32(static_cast<int32_t>(cases[i])), targets[i]));
    m_out.switchInstruction(expression, switchCases, defaultTarget, FTL::Weight());
}

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