annotating generated code with source and bytecode info

[Deneau, Tom]

We would like to be able to annotate our HSAIL code generation (using comments)
to get something like the annotations that are seen in the AMD64 disassembly. (as shown below)

Can you point me to where in the code to look to generate such comments?

-- Tom Deneau

  0x00007f70bfb7b49c: mov    qword ptr [rsp+0x10],rbp  ; OopMap{rsi=Oop off=17}
                                                       ;*aload_0
                                                       ; - com.oracle.graal.compiler.test.BasicTest::testArrayVarSnippet at 0 (line 22)