[Bug tree-optimization/15758] Convert "if (a >= b) X else if (a <= b) Y" into "if (a >= b) X else Y"

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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             Status|REOPENED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15758