[Bug middle-end/91866] Sign extend of an int is not recognized

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91866

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Sep 24 12:45:13 2019
New Revision: 276096

URL: https://gcc.gnu.org/viewcvs?rev=276096&root=gcc&view=rev
Log:
        PR middle-end/91866
        * match.pd (((T)(A)) + CST -> (T)(A + CST)): Formatting fix.
        (((T)(A + CST1)) + CST2 -> (T)(A) + (T)CST1 + CST2): New optimization.

        * gcc.dg/tree-ssa/pr91866.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr91866.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog