[Bug tree-optimization/42108] [4.4/4.5 Regression] 50% performance regression

[dominiq at lps dot ens dot fr]

------- Comment #39 from dominiq at lps dot ens dot fr  2009-12-18 21:04 -------
The patch in comment #38 does not fix the speed issue: the code with the inner
loop is still 4 times slower than the code with the loop manually unrolled.

Note that the included test regtests successfully. 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42108