gcc peephole problem

[vikramsp]

Hello there. I was exploring about peephole and peephole2 optimisation
passes of gcc c compiler. when compiling a test.c programme like this -

~$ gcc test.c -fpeephole2 -da

there was no dump for peephole2 pass. same is for -fpeephole.
Does it mean that peephole passes are not done or is there any
other way to do so. 
Please help me

Best Regards
vikramsp
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