[Bug target/38824] [4.4 Regression] performance regression of sse code from 4.2/4.3

[dwarak dot rajagopal at amd dot com]

------- Comment #20 from dwarak dot rajagopal at amd dot com  2009-02-10 16:28 
-------
Paulo,
(a)   movaps  (%rax, %rsi), %xmm0
      addps  %xmm0, %xmm1

(b)   movaps  %xmm0, %xmm1
      addps  (%rax, %rsi), %xmm1

Yes, case (a) is slightly better than case (b). It shouldn't matter much though
in amdfam10(shanghai) processors. 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38824