#source: lfence-ret.s #as: -mlfence-before-ret=shl #objdump: -dw #name: -mlfence-before-ret=shl .*: +file format .* Disassembly of section .text: 0+ <_start>: +[a-f0-9]+: 66 c1 24 24 00 shlw \$0x0,\(%esp\) +[a-f0-9]+: 0f ae e8 lfence +[a-f0-9]+: 66 c3 retw +[a-f0-9]+: 66 c1 24 24 00 shlw \$0x0,\(%esp\) +[a-f0-9]+: 0f ae e8 lfence +[a-f0-9]+: 66 c2 14 00 retw \$0x14 +[a-f0-9]+: c1 24 24 00 shll \$0x0,\(%esp\) +[a-f0-9]+: 0f ae e8 lfence +[a-f0-9]+: c3 ret +[a-f0-9]+: c1 24 24 00 shll \$0x0,\(%esp\) +[a-f0-9]+: 0f ae e8 lfence +[a-f0-9]+: c2 1e 00 ret \$0x1e #pass