[Bug c/60101] [4.7/4.8/4.9 Regression] Long compile times when mixed complex floating point datatypes are used in lengthy expressions

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60101

--- Comment #11 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Sorry for not being more helpful, it was a long time ago that I worked on that.
Perhaps if you tell me which revision did the reversal/implemented the
special-handling of SAVE_EXPR, I can figure out what is going on.