Apart from removing almost 1000 lines of very repetitive code, the idea here is
to change the assembler from a huge pile of arbitrary code into something that
can be used to generate tables of opcodes and their structure. Later, I'd like to
use this to make the disassembler more table driven and less arbitrary, and
perhaps build an x86 simulator in the same vein as the ARM simulator, which
would help me debug (I find the ARM simulator very useful when making low level
changes to the VM and miss its functionality on x86).
R=vegorov@google.com
Bug:
Change-Id: I1ae2c1696f88b67862843c9ac05c827a7c9b9a6e
Reviewed-on: https://dart-review.googlesource.com/25241
Commit-Queue: Erik Corry <erikcorry@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
R=vegorov@google.com
This removes the IA32 disassembler and uses the X64 disassembler for
both variants. Instructions that were in the IA32 assembler, but not
supported by the X64 disassembler have been added. It also adds some
regression tests for a lot of the disassembler output.
Bug:
Change-Id: I243abbb04c3a77810ce96ca74f7f42a5a1aea0cf
Reviewed-on: https://dart-review.googlesource.com/22982
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Erik Corry <erikcorry@google.com>
This also means that an orthogonal selection of the core ALU instructions
are available so future programmers don't have to add instructions
to the assembler as needed, which tends to slow down progress.
R=vegorov@google.com
Bug:
Change-Id: I5fea72c70ea7ffbae8efad85aef4ecc96c235cb6
Reviewed-on: https://dart-review.googlesource.com/21140
Commit-Queue: Erik Corry <erikcorry@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
New folder structure (nested under vm/):
- compiler/
- jit/ - JIT specific code
- aot/ - AOT specific code
- backend/ - all middle-end and back-end code (IL, flow graph)
- assembler/ - assemblers and disassemblers
- frontend/ - front ends (AST -> IL, Kernel -> IL)
compiler/README.md would be the documentation root for the compiler
pipeline
Bug: https://github.com/dart-lang/sdk/issues/30575
Change-Id: I2dfd9688793bff737f7632ddc77fca766875ce36
Reviewed-on: https://dart-review.googlesource.com/2940
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Erik Corry