subject:"A strange code snippet\: jump to a return instruction"

Re: A strange code snippet: jump to a return instruction

2014-01-09 Thread Ian Lance Taylor

On Thu, Jan 9, 2014 at 3:00 PM, xmeng wrote: > > Here is a strange code snippet in gcc.bin in version 4.7.0: > > 00402e20 <_ZL28if_exists_else_spec_functioniPPKc>: > 402e20: 31 c0 xor%eax,%eax > 402e22: 83 ff 02cmp$0x2,%edi > 402e

A strange code snippet: jump to a return instruction

2014-01-09 Thread xmeng

Hi, Here is a strange code snippet in gcc.bin in version 4.7.0: 00402e20 <_ZL28if_exists_else_spec_functioniPPKc>: 402e20: 31 c0 xor%eax,%eax 402e22: 83 ff 02cmp$0x2,%edi 402e25: 75 11 jne402e38 402