.*: Assembler messages: .*:4: Error: .* .*:5: Error: .* .*:6: Error: .* .*:9: Error: .* .*:10: Error: .* .*:11: Error: .* GAS LISTING .* [ ]*1[ ]+\# Check illegal INVPCID instructions [ ]*2[ ]+\.text [ ]*3[ ]+foo: [ ]*4[ ]+invpcid \(%ecx\), %bx [ ]*5[ ]+invpcid %ebx, \(%ecx\) [ ]*6[ ]+invpcid %ebx, %ecx [ ]*7[ ]+ [ ]*8[ ]+\.intel_syntax noprefix [ ]*9[ ]+invpcid bx, \[ecx\] [ ]*10[ ]+invpcid \[ecx\], ebx [ ]*11[ ]+invpcid ecx, ebx