This change adds OpenJDK as an output compiler for Android Java,
beginning with 11.0.2. This change also updates java.ts to allow for
input libraries, by parsing library paths and passing them into the
javac invocation as '-cp \<path\>:\<path\>:...'.
This is intended to simplify the process of inspecting javac output when
Android Java is already selected so that a user doesn't have to switch
to the Java compiler option. This also allows a user to view javac
output with Android libraries.
And use it for Android d8 compiler.
It's empty for now. But it lets you filter in the compiler pop out box.
And it may let us attach hover assembly documentation later.
I've left it empty in `lib/instructionsets.ts` like `java` is, which I'm
modelling this off.
Towards #6819
R8 is a whole-program optimizer that converts Java byte code to
optimized dex code. It can be run with the same general steps (and JAR)
as the existing D8 compiler.
This change adds R8Compiler and the R8 keep-annotation library it relies
on, makes this lib + Android API stubs default libraries for Android
Java/Kotlin, and includes a small update to allow older versions of
dex2oat (33.10) to run.
https://r8.googlesource.com/r8
dex2oat supports profile-guided compilation. In addition to taking dex
code as an input, it can take a profile as another input, to guide the
compilation. The profile determines which methods need to be compiled,
how calls can be inlined, and so on.
Because Compiler Explorer doesn't support multiple input files, the
profile is added as a comment block in the Java/Kotlin source code. A
post-processor extracts the profile from the comment block into a
separate file, in order to input it to dex2oat.
This change adds recent D8 versions (8.1.72, 8.2.33, 8.2.42). Properties
for D8 have been reformatted to use groups in order to avoid duplication
of java/kotlin references.
Adds Dex2OatCompiler, which applies to the Android Java and Android
Kotlin languages. Dex2OatCompiler runs on .dex files output by
D8Compiler, which in turn runs on .class files output by JavaCompiler or
KotlinCompiler. A parser has been added for dex2oat optimization passes.
Adds D8Compiler, which applies to the Android Java and Android Kotlin
languages. D8Compiler instantiates a JavaCompiler or KotlinCompiler
using the java/kotlin dependencies' paths for D8 in the infra repo.
compiler-finder.ts has been updated to allow for duplicate compiler IDs
for 'android-java' and 'android-kotlin', as it is expected that the
compilers used for these languages is the same.
