On Thu, Jul 29, 2021 at 1:32 AM Yonghong Song <yhs@xxxxxx> wrote:
> > @@ -3051,6 +3051,31 @@ static struct bpf_test tests[] = {
> > { },
> > { { 0, 2147483647 } },
> > },
> > + {
> > + "ALU64_MUL_X: 64x64 multiply, low word",
> > + .u.insns_int = {
> > + BPF_LD_IMM64(R0, 0x0fedcba987654321LL),
> > + BPF_LD_IMM64(R1, 0x123456789abcdef0LL),
> > + BPF_ALU64_REG(BPF_MUL, R0, R1),
> > + BPF_EXIT_INSN(),
> > + },
> > + INTERNAL,
> > + { },
> > + { { 0, 0xe5618cf0 } }
>
> Same here. Maybe capture the true 64-bit R0 value?
Same as the LSH/RSH/ARSH tests. Uses 32-bit shift to test high and low
words in two runs.
