gfx940 and gfx941 are no longer supported. This is one of a series of
PRs to remove them from the code base.
This PR removes all occurrences of gfx940/gfx941 from clang that can be
removed without changes in the llvm directory. The
target-invalid-cpu-note/amdgcn.c test is not included here since it
tests a list of targets that is defined in
llvm/lib/TargetParser/TargetParser.cpp.
For SWDEV-512631
This patch introduces a new generic target, `gfx9-4-generic`. Since it doesn’t support FP8 and XF32-related instructions, the patch includes several code reorganizations to accommodate these changes.
This change does two kinds of splits:
- Splits each target into a different file. Some targets are left in the
same files, such as riscv32/64 and x86/_64 as these tests and lists are
very similar.
- Splits up the very long 'note:' lines which contain a list of CPUs,
using `CHECK-SAME`. There was a note about this not being possible
before, but with `{{^}}`, this is now possible -- I have
verified that this does the right thing if a single CPU anywhere in the
list is left out.
These tests had become quite annoying to change when adding a CPU, and I
believe this change makes these easier to maintain, and should cut down
on conflicts in these files (or at least makes conflicts easier to
resolve).
I apologise in advance for downstream conflicts, but hopefully that's a
small amount of short term pain, in return for fewer conflicts in
future.
