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Debugging when optimisation is on?

From: Name lastlong <brew_pt at yahoo dot com>
To: gcc-help at gcc dot gnu dot org
Date: Thu, 30 Dec 2010 10:43:50 -0800 (PST)
Subject: Debugging when optimisation is on?

hi,

I have a program that debugs well when I try debugging with no optimisation on. However, debugging breaks as soon as I turn on the optimization option like O2 or Os. Readelf dump shows some misaligned line numbers.

What could be wrong? Isnt it a good idea to debug with optmization on?
I am using gcc 4.5.

Regards,
Brew

Follow-Ups:
- Re: Debugging when optimisation is on?
  - From: Jonathan Wakely

References:
- Re: fno-jump-tables question
  - From: Ian Lance Taylor

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