[Bug middle-end/61876] Converting __builtin_round + cast into __builtin_lround is not always equivalent in regards to math errno

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61876

--- Comment #4 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Thu Jul 24 13:23:05 2014
New Revision: 212989

URL: https://gcc.gnu.org/viewcvs?rev=212989&root=gcc&view=rev
Log:
PR 61876: Do not convert cast + __builtin_round into __builtin_lround unless
-fno-math-errno is used.

    PR middle-end/61876
    * convert.c (convert_to_integer): Do not convert BUILT_IN_ROUND and cast
    when flag_errno_math is on.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/convert.c