.*: Assembler messages: .*:5: Warning: instruction length.* .*:6: Warning: instruction length.* .*:7: Warning: instruction length.* .*:9: Warning: instruction length.* .*:10: Warning: instruction length.* GAS LISTING .* [ ]*1[ ]+\.text [ ]*2[ ]+\.intel_syntax noprefix [ ]*3[ ]+ [ ]*4[ ]+long64: [ ]*5[ ]+0000 64678FEA[ ]+lwpins rax, fs:\[eax\*8\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*5[ ]+F81204C5[ ]* [ ]*5[ ]+00000000[ ]* [ ]*5[ ]+44332211[ ]* [ ]*6[ ]+0010 64678FEA[ ]+lwpval eax, fs:\[eax\*4\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*6[ ]+78120C85[ ]* [ ]*6[ ]+00000000[ ]* [ ]*6[ ]+44332211[ ]* [ ]*7[ ]+0020 64678FEA[ ]+bextr rax, fs:\[eax\*2\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*7[ ]+F8100445[ ]* [ ]*7[ ]+00000000[ ]* [ ]*7[ ]+44332211[ ]* [ ]*8[ ]+ [ ]*9[ ]+0030 6567F2F0[ ]+xacquire lock add qword ptr gs:\[eax\*8\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*9[ ]+488104C5[ ]* [ ]*9[ ]+00000000[ ]* [ ]*9[ ]+44332211[ ]* [ ]*10[ ]+0040 6567F3F0[ ]+xrelease lock sub qword ptr gs:\[eax\*8\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*10[ ]+48812CC5[ ]* [ ]*10[ ]+00000000[ ]* [ ]*10[ ]+44332211[ ]* #pass