Withdrawn: 8254807: Optimize startsWith() for String.substring()

[Xin Liu]

On Sat, 31 Oct 2020 05:22:39 GMT, Xin Liu <xliu at openjdk.org> wrote:

> The optimization transforms code from s=substring(base, beg, end); s.startsWith(prefix)
> to substring(base, beg, end) | base.startsWith(prefix, beg). 
> 
> it reduces uses of substring. hopefully c2 optimizer can remove the used substring.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.java.net/jdk/pull/974