!fixup: add MC tests for llvm#75110

Author: inclyc

llvm/test/MC/BPF/branch-or-nop.s

@@ -0,0 +1,11 @@
+# RUN: llvm-mc -triple bpfel -show-encoding < %s | FileCheck %s
+
+dst:
+
+# CHECK: gotol_or_nop dst                        # encoding: [0x06'A',0x10'A',A,A,0x00,0x00,0x00,0x00]
+# CHECK-NEXT:                                    #   fixup A - offset: 0, value: dst, kind: FK_BPF_PCRel_4
+gotol_or_nop dst
+
+# CHECK: nop_or_gotol dst                        # encoding: [0x06'A',0x30'A',A,A,0x00,0x00,0x00,0x00]
+# CHECK-NEXT:                                    #   fixup A - offset: 0, value: dst, kind: FK_BPF_PCRel_4
+nop_or_gotol dst