[llvm] [llvm-objdump] Add triple support to `mcpu=help` (PR #165661)

[Ruoyu Qiu via llvm-commits]

cabbaken wrote:

When I'm writing the test case accroding to
> 3. --mcpu=help + --disassemble + no objects specified + other dump options, --triple
a. As 2. but target derived from --triple option value.
b. If a.out doesn't exist, print MCPU help derived from --triple and don't emit an error.

Is it intended behavior that we don't emit an error if the user specifies -d but a.out doesn't exist?


https://github.com/llvm/llvm-project/pull/165661