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| From | ike@localhost.claranet.nl (Ike Naar) |
|---|---|
| Newsgroups | comp.compilers |
| Subject | Re: GCC/G++ compiler: Error goes away when run through debugger |
| Date | 2011-03-29 21:42 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <11-03-063@comp.compilers> (permalink) |
| References | <11-03-054@comp.compilers> <11-03-061@comp.compilers> |
George Neuner <gneuner2@comcast.net> wrote: >GCC's -O3 optimization level is widely known to cause strange problems >... almost always because the program is violating assumptions made by >the more advanced optimizations. > >The -O2 level typically is safe. If you think you need the -O3 >optimizations, you should individually enable them to see if any >breaks the program. Specify -O3 only if you find they all work. Sometimes using -O3 makes the program run slower than when using -O2.
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Re: GCC/G++ compiler: Error goes away when run through debugger George Neuner <gneuner2@comcast.net> - 2011-03-29 12:18 -0400
Re: GCC/G++ compiler: Error goes away when run through debugger ike@localhost.claranet.nl (Ike Naar) - 2011-03-29 21:42 +0000
Re: GCC/G++ compiler: Error goes away when run through debugger George Neuner <gneuner2@comcast.net> - 2011-03-31 01:34 -0400
Re: GCC/G++ compiler: Error goes away when run through debugger Shankar <shankarke@gmail.com> - 2011-04-01 15:31 -0700
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