On 1/18/18 2:30 PM, Eric Dumazet wrote:
On Fri, 2018-01-12 at 18:59 -0800, Alexei Starovoitov wrote:
due to some JITs doing if (src_reg == 0) check in 64-bit mode
for div/mod opreations mask upper 32-bits of src register
before doing the check
Is the plan to fix JIT, and if they can all be fixed,
revert this patch ?
No need to fix JITs.
I'd rather remove 'cmp rX, 0' from JITs and let verifier emit it.
It's more generic and gives us flexibility to decide what to do
with divide by zero and other exceptions.
