r218985 - in /trunk/gcc: ChangeLog c-family/Cha...

[jsm28@gcc.gnu.org]

Author: jsm28
Date: Sat Dec 20 00:29:16 2014
New Revision: 218985

URL: https://gcc.gnu.org/viewcvs?rev=218985&root=gcc&view=rev
Log:
2014-12-20  Martin Uecker <uecker@eecs.berkeley.edu>

	* doc/invoke.texi: Document -Wdiscarded-array-qualifiers.
	* doc/extend.texi: Document new behavior for pointers to arrays
	with qualifiers.

c/
	* c-typeck.c: New behavious for pointers to arrays with qualifiers
        (common-pointer-type): For pointers to arrays take qualifiers from
	element type.
        (build_conditional_expr): Add warnings for lost qualifiers.
	(comp-target-types): Allow pointers to arrays with different qualifiers.
        (convert-for-assignment): Adapt warnings for discarded qualifiers. Add
	WARNING_FOR_QUALIFIERS macro and rename WARN_FOR_QUALIFIERS
        to PEDWARN_FOR_QUALIFIERS.

c-family/
	* c.opt (Wdiscarded-array-qualifiers): New option.

testsuite/
	* gcc.dg/Wwrite-strings-1.c: Change dg-warning.
	* gcc.dg/array-quals-1.c: Use -Wno-discarded-array-qualifiers.
	* gcc.dg/array-quals-2.c: Change dg-options, dg-warning.
	* gcc.dg/pointer-array-atomic.c: New test.
	* gcc.dg/pointer-array-quals-1.c: New test.
	* gcc.dg/pointer-array-quals-2.c: New test (-pedantic-errors).
	* gcc.dg/qual-component-1.c: Change dg-options, dg-warnings.

Added:
    trunk/gcc/testsuite/gcc.dg/pointer-array-atomic.c
    trunk/gcc/testsuite/gcc.dg/pointer-array-quals-1.c
    trunk/gcc/testsuite/gcc.dg/pointer-array-quals-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c.opt
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-typeck.c
    trunk/gcc/doc/extend.texi
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/Wwrite-strings-1.c
    trunk/gcc/testsuite/gcc.dg/array-quals-1.c
    trunk/gcc/testsuite/gcc.dg/array-quals-2.c
    trunk/gcc/testsuite/gcc.dg/qual-component-1.c