[Bug middle-end/19988] [4.0 Regression] pessimizes fp multiply-add/subtract combo

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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          Component|c                           |middle-end
           Keywords|                            |missed-optimization
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19988