tree 66e954ae6f3356b415f202d9163d86fc5616e19a
parent bb1c79828956f0f6753be0920efcecf32ba55f93
author Timothy Gu <timothygu99@gmail.com> 1620336355 -0700
committer Damien Neil <dneil@google.com> 1635547479 +0000

internal/export/idna: fix int32 overflows

Prefer multiplication (int64(b)*int64(c) > MaxInt32) over division (b >
MaxInt32/c) for overflow checking as it is a little faster on 386, and a
LOT faster on amd64.

For golang/go#28233.

Change-Id: Ibf42529b93b699417781adc7eca6e66474f00bbf
Reviewed-on: https://go-review.googlesource.com/c/text/+/317731
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Damien Neil <dneil@google.com>