[Bug middle-end/28473] [4.0/4.1/4.2 Regression] with -O, casting result of round(x) to uint64_t produces wrong values for x > INT_MAX

[sayle at gcc dot gnu dot org]

------- Comment #8 from sayle at gcc dot gnu dot org  2006-07-25 23:22 -------
Subject: Bug 28473

Author: sayle
Date: Tue Jul 25 23:21:56 2006
New Revision: 115742

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115742
Log:

        PR middle-end/28473
        * convert.c (convert_to_integer): When transforming (T)foo(x) into
        bar(x) check that bar's result type can represent all the values of T.

        * gcc.dg/fold-convround-1.c: New test case.


Added:
    trunk/gcc/testsuite/gcc.dg/fold-convround-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/convert.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28473