From: haberg-news@telia.com   
      
   On 2011/08/12 06:05, John Levine wrote:   
      
   > On 2011/08/12 06:05, glen herrmannsfeldt wrote:   
   >> ... Someone was wondering if any   
   >> optimization was done at link time.   
      
   > [This is pretty standard in the toolchains for embedded processors.  I   
   > gather that the ARM compilers generate intermediate code, and all the   
   > optimization and code generation happens in the linker. -John]   
      
   I think that part of the reason that Apple switched to an LLVM based   
   compiler is that it can generate intermediate code that can be optimized   
   depending on what GPU is present. Perhaps it makes a switch from Intel   
   to ARM simpler.   
      
   Hans   
      
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