[Bug rtl-optimization/42694] Compiler could optimize pow (x, 0.75) into sqrt (x) * sqrt (sqrt (x))

[meissner at gcc dot gnu dot org]

------- Comment #1 from meissner at gcc dot gnu dot org  2010-01-11 21:42 
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Created an attachment (id=19542)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19542&action=view)
Program to demonstrate the slowdown

This program calculates the speed of various pow arguments.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42694