[Webkit-unassigned] [Bug 168789] B3 should have a sane double-to-int opcode that behaves like JS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=168789

--- Comment #1 from Filip Pizlo <fpizlo at apple.com> ---
Check out how badly we compile this:

function foo(a) {
    a[0] = -1.0;
}

noInline(foo);

var a = new Int8Array(1);
for (var i = 0; i < 10000; ++i)
    foo(a);

We emit awful code in FTL for the "a[0] = -1.0" statement.

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