[LLVMdev] LLVM-GCC generating too much code from inline assembly
Fred / Kettch
mjr.kettch at gmail.com
Tue Mar 16 23:07:00 PDT 2010
Yeah, sorry, it's the habit of working with Visual Studio people in a
cross-platform environment ;)
I mean with no optimizations, but when I was saying I took a 3x
performance hit, I mean between GCC 4.2 - no optims, and LLVM-GCC 4.2
- no optims. I expect it to be slower between LLVM GCC with or
without optims, but not that much in that specific case...
Fred
On Mar 17, 2010, at 6:52 AM, Duncan Sands wrote:
> Hi Fred,
>
>> And now that it's all working again, I'm finding performance took a
>> big hit since I went to using LLVM-GCC in debug. Are there any other
>> surprises like the one I found on asm blocks that are disseminated
>> all around, making my app be 3x times slower in debug ?
>
> I'm not sure what you mean by "using LLVM-GCC in debug". If you
> mean that
> you are compiling without optimization, then it is normal that your
> program
> runs slowly.
>
> Ciao,
>
> Duncan.
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