Hi!
On Thu, Mar 10, 2022 at 09:54:55AM -0800, Patrick O'Neill wrote:
> I added this enforcement during the combine pass since it looks at the
> cost of certian expressions and can rely on the target to tell the
> pass that clobber-ops are cheaper than regular ops.
That is not a reason to put targ
Hi Patrick:
There is few direction in my mind:
1. Model the C extension right in riscv.md
2. Write peephole2 pattern.
3. Implement a RISC-V specific register renaming pass.
1. Model the C extension right in riscv.md
Currently we rely the GNU as to compress the instruction to C
extension, and ac
