CSE, loops, and array accesses

[Andrew Haley]

On 10/01/2015 02:00 PM, Edward Nevill wrote:
> Try the following patch, it should generate the code you want.

OK, so perhaps the question is how to fix this in the form of a patch
which can go into JDK9.

But there is a deeper question: why is ((A+B)+con) so tightly bound
that the constant add can never be CSE'd?  I guess there is some
special-case code somewhere which detects address this case.

Speculating, perhaps the real reason for this is loops with
safepoints.

Andrew.