[Bug c/81417] -Wsign-compare should print types being compared

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81417

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Thu Jul 27 15:02:17 2017
New Revision: 250630

URL: https://gcc.gnu.org/viewcvs?rev=250630&root=gcc&view=rev
Log:
        PR c/81417
        * c-warn.c (warn_for_sign_compare): Tweak the warning message.  Print
        the types.

        * c-c++-common/Wsign-compare-1.c: New test.
        * g++.dg/warn/Wsign-compare-2.C: Update dg-warning.
        * g++.dg/warn/Wsign-compare-4.C: Likewise.
        * g++.dg/warn/Wsign-compare-6.C: Likewise.
        * g++.dg/warn/compare1.C: Likewise.
        * gcc.dg/compare1.c: Likewise.
        * gcc.dg/compare2.c: Likewise.
        * gcc.dg/compare4.c: Likewise.
        * gcc.dg/compare5.c: Likewise.
        * gcc.dg/pr35430.c: Likewise.
        * gcc.dg/pr60087.c: Likewise.

Added:
    trunk/gcc/testsuite/c-c++-common/Wsign-compare-1.c
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-warn.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/warn/Wsign-compare-2.C
    trunk/gcc/testsuite/g++.dg/warn/Wsign-compare-4.C
    trunk/gcc/testsuite/g++.dg/warn/Wsign-compare-6.C
    trunk/gcc/testsuite/g++.dg/warn/compare1.C
    trunk/gcc/testsuite/gcc.dg/compare1.c
    trunk/gcc/testsuite/gcc.dg/compare2.c
    trunk/gcc/testsuite/gcc.dg/compare4.c
    trunk/gcc/testsuite/gcc.dg/compare5.c
    trunk/gcc/testsuite/gcc.dg/pr35430.c
    trunk/gcc/testsuite/gcc.dg/pr60087.c