Adjust sanity check in register parsing function to allow register
name with more than 2 characters (e.g. ccr).
Differential Revision: https://reviews.llvm.org/D101733
As the context depicted by bug 49865[1], we are migrating tests under
`test/CodeGen/M68k/Encoding`, which was originally used to test
instruction encoding using MIR file as input, into `test/MC/M68k`. We
are also adding test directives for AsmParser using the same set of
inputs.
Currently we are converting the original MIR test files into assembly
code as well as translating the original LIT "RUN" statement into one
that only uses built-in LLVM tools (i.e. Get rid of `extract-section`).
However, since AsmParser has not completely finished, many of these
original test cases fail. Thus, this patch only migrate test files
that are passed by the current implementation of AsmParser (and
MCCodeEmitter). The remaining tests (under test/CodeGen/M68k/Encoding)
will be ported alone with the patch that fixes the related issues.
[1]: https://bugs.llvm.org/show_bug.cgi?id=49865
Differential Revision: https://reviews.llvm.org/D101410
And a small utilities -- extract-section.py -- that helps extracting
specific object file section and printing in textual format. This
utility is just a workaround for tests inside `Encoding`. Hopefully in
the future we can replace dependencies in those tests with existing tools
(e.g. llvm-readobj). Please refer to this bug for more context:
https://bugs.llvm.org/show_bug.cgi?id=49245
Note that since we don't have AsmParser for now, we are testing the MC
part using MIR as input and put those tests under the `Encoding` folder.
In the future when AsmParser (and disassembler) is finished, those tests
will be moved to `test/MC/M68k`.
Authors: myhsu, m4yers, glaubitz
Differential Revision: https://reviews.llvm.org/D88392
Min-Yih Hsu