RFR: 8264806: Remove the experimental JIT compiler

[Erik Joelsson]

On Fri, 9 Apr 2021 17:35:11 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> As part of [JEP 410](http://openjdk.java.net/jeps/410) remove code related to Java-based JIT compiler (Graal) from JDK:
> 
> - `jdk.internal.vm.compiler` — the Graal compiler 
> - `jdk.internal.vm.compiler.management` — Graal's `MBean`
> - `test/hotspot/jtreg/compiler/graalunit` — Graal's unit tests
> 
> Remove Graal related code in makefiles.
> 
> Note, next two `module-info.java` files are preserved so that the JVMCI module `jdk.internal.vm.ci` continues to build:
> src/jdk.internal.vm.compiler/share/classes/module-info.java
> src/jdk.internal.vm.compiler.management/share/classes/module-info.java
> 
> @AlanBateman suggested that we can avoid it by using Module API to export packages at runtime . It requires changes in GraalVM's JVMCI too so I will file followup RFE to implement it.
> 
> Tested hs-tier1-4

make/GraalBuilderImage.gmk line 1:

> 1: #

This file should not be removed. This outout image is this makefile produces is used as input to the separate GraalVM build.

make/Main.gmk line 444:

> 442: ))
> 443: 
> 444: $(eval $(call SetupTarget, graal-builder-image, \

Same as above, this needs to stay.

make/autoconf/spec.gmk.in line 895:

> 893: STATIC_LIBS_IMAGE_DIR := $(IMAGES_OUTPUTDIR)/$(STATIC_LIBS_IMAGE_SUBDIR)
> 894: 
> 895: # Graal builder image

Like above, this needs to stay.

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PR: https://git.openjdk.java.net/jdk/pull/3421