fix: skip fence.tso on llvm-test (#687)

since compiler and ISA view of the instruction differ

Fixes #460

Signed-off-by: Afonso Oliveira <[email protected]>

Author: AFOliveira

ext/auto-inst/test_parsing.py

@@ -122,6 +122,7 @@ def test_instruction_encoding(self, instr_name):
             or instr_name == "c.nop"
             or instr_name == "fcvtmod.w.d"
             or instr_name == "fence"
+            or instr_name == "fence.tso"
         ):
             pytest.skip(
                 f"Instruction {instr_name} is a corner case and implementation should not follow ISA spec"