[Bug target/110782] New: bpf: make use of the V4 sign-extended load instructions

[jemarch at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110782

            Bug ID: 110782
           Summary: bpf: make use of the V4 sign-extended load
                    instructions
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jemarch at gcc dot gnu.org
  Target Milestone: ---

The BPF V4 ISA introduces sign-extended load instructions, to load 8-bit,
16-bit, 32-bit and 64-bit values from memory to a 64-bit register with sign
extension.  We should make GCC use these instructions whenever
feasible/desirable.