Integrated: 8264868: Reduce inclusion of registerMap.hpp and register.hpp

[Ioi Lam]

On Wed, 7 Apr 2021 21:03:10 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> Register.hpp is included 815 times, and registerMap.hpp is include 862 times (out of about 1000 HotSpot .o files).
> 
> This can be reduced by refactoring the popular header file **frame.hpp**, so that it doesn't include registerMap.hpp anymore. This reduces the number of .o files that include register.hpp to 612, and that of registerMap.hpp to 109.
> 
> The total number of lines of C++ code compiled for HotSpot is reduced by about 0.5%.

This pull request has now been integrated.

Changeset: c15680e7
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/c15680e7
Stats:     263 lines in 27 files changed: 203 ins; 51 del; 9 mod

8264868: Reduce inclusion of registerMap.hpp and register.hpp

Reviewed-by: coleenp, dholmes

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PR: https://git.openjdk.java.net/jdk/pull/3384