Introduce IR UnaryOps for numberOfLeadingZeros (clz).
#5181
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This particular operation is used by a number of our core numerical algorithms. It makes sense for it to receive a dedicated opcode. The dedicated opcode lets the optimizer reason about its purity.
gzm0
approved these changes
May 29, 2025
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This particular operation is used by a number of our core numerical algorithms. It makes sense for it to receive a dedicated opcode.
The dedicated opcode lets the optimizer reason about its purity.
Another benefit is that we avoid the
$uI()call aroundMath.clz32in fastLinkJS. For a core function like this, it's not entirely useless.