[Bug tree-optimization/126467] [13/14/15/16/17 Regression] wrong code with folding 0.0 - x

[roger at nextmovesoftware dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126467

Roger Sayle <roger at nextmovesoftware dot com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |roger at nextmovesoftware dot com

--- Comment #3 from Roger Sayle <roger at nextmovesoftware dot com> ---
Created attachment 65160
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65160&action=edit
proposed patch

Proposed patch.