[LLVMdev] detailed comparison of generated code size for LLVM and other compilers

[Chris Lattner]

On Dec 14, 2009, at 5:01 PM, Anton Korobeynikov wrote:

>> Aha, this explains some apparently bizarre results such as the  
>> second one
>> (018427, d) on this page:
> Right. However, I saw the opposite case with sse2 code being 4x larger

"return 1.0" is an example that is larger with SSE codegen, because  
the ABI requires stuff in the FP stack.  X86-64 doesn't have this issue.

-Chris