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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 214.03-0.4%12:36 PM EST
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To: Joe NYC who wrote (87429)8/22/2002 10:50:14 PM
From: brushwudRead Replies (1) of 275872
 
Based on SPECInt2000 and pre-released x86-64 GCC compiler:

Code size is up about 5%
- Mostly due to 64-bit literals

This makes no sense to me. I wouldn't think SPECint would have ANY 64-bit literal constants, and even if it did, loading them would have to be at least as compact as loading two 32-bit literals. The average instruction length should be greater due to the extra bits to address the extra registers, but the elimination of the "spill/fill memory references" he mentions should mean fewer instructions. When people talk about "code size", they usually mean the total footprint of the executable program, # of instructions x instruction length.
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