[Bug middle-end/23295] fold does not simplify -a - (5) to (-5) - a

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-09 
03:12 -------
This is done in simplify-rtx.c for the rtl level.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23295