Invalid test generation for vaadd instruction with vlen = 512, LMUL = 8, SEW = 8 configuration

[Muhammad-Saadi-Abbasi]

I am generating a test for vaadd fixed point instruction with the following configuration:
vlen = 512, LMUL = 8, SEW = 8

I used following command to generate the test:

python3 run.py -t x -i vaadd --vlen 512 --lmul 8 --vsew 8 --xlen 64 --flen 64

• My understanding is that if it is generating a test for a specific instruction (in this case vaadd), there would be at least one execution of vaadd but I don't see any execution of this instruction for this specific configuration.

• While for the remaining configurations it is working as expected i.e. it has executed the instruction which is being tested:

core   0: 0x0000000080000260 (0x25042c57) vaadd.vv v24, v16, v8, v0.t
core   0: 0 0x0000000080000260 (0x25042c57) c8_vstart 0x0000000000000000 e8 m1 l64 v24 0x00811ecf1c452e0ae82d552b8b445536307d97442d004d0374da352ed0d72d04b49ae55d9ed4e107c4d9b11b112e3f0367f9ab10fd2ce801f68219ef66da64fe

Is there any known bugs related to this?

Note: I have checked only vaadd instruction, may be there are more cases like this.