Agreed policy is that RISC-V extensions that have not yet been ratified
should be marked as experimental, and enabling them requires the use of
the -menable-experimental-extensions flag when using clang alongside the
version number. These extensions have now been ratified, so this is no
longer necessary, and the target feature names can be renamed to no
longer be prefixed with "experimental-".
Differential Revision: https://reviews.llvm.org/D117131
Add an alias of `addi [x], zero, imm` to generate pseudo
instruction li, which makes assembly mush more readable.
For existed tests, users can update them by running script
`llvm/utils/update_llc_test_checks.py`.
Reviewed By: asb
Differential Revision: https://reviews.llvm.org/D112692
These test files are copied directly from AArch64. Some of the cases
may benefit from ANDN with the Zbb extension. Somes cases already
improve use ANDN.
selectcc-to-shiftand.ll also contains tests that test select->and
conversion even when a ANDN isn't needed. I think this improves our
coverage of these optimizations.
Differential Revision: https://reviews.llvm.org/D113935
Alex Bradbury