-fobjc-gc @gol
-fobjc-nilcheck @gol
-fobjc-std=objc1 @gol
+-fno-local-ivars @gol
+-fivar-visibility=@var{public|protected|private|package} @gol
-freplace-objc-classes @gol
-fzero-link @gol
-gen-decls @gol
-Wparentheses -Wpedantic-ms-format -Wno-pedantic-ms-format @gol
-Wpointer-arith -Wno-pointer-to-int-cast @gol
-Wredundant-decls -Wno-return-local-addr @gol
--Wreturn-type -Wsequence-point -Wshadow @gol
+-Wreturn-type -Wsequence-point -Wshadow -Wno-shadow-ivar @gol
-Wsign-compare -Wsign-conversion -Wfloat-conversion @gol
-Wsizeof-pointer-memaccess @gol
-Wstack-protector -Wstack-usage=@var{len} -Wstrict-aliasing @gol
The GNU runtime currently always retains calls to @code{objc_get_class("@dots{}")}
regardless of command-line options.
+@item -fno-local-ivars
+@opindex fno-local-ivars
+@opindex flocal-ivars
+By default instance variables in Objective-C can be accessed as if
+they were local variables from within the methods of the class they're
+declared in. This can lead to shadowing between instance variables
+and other variables declared either locally inside a class method or
+globally with the same name. Specifying the @option{-fno-local-ivars}
+flag disables this behavior thus avoiding variable shadowing issues.
+
+@item -fivar-visibility=@var{public|protected|private|package}
+@opindex fivar-visibility
+Set the default instance variable visibility to the specified option
+so that instance variables declared outside the scope of any access
+modifier directives default to the specified visibility.
+
@item -gen-decls
@opindex gen-decls
Dump interface declarations for all classes seen in the source file to a
@item -Wshadow
@opindex Wshadow
@opindex Wno-shadow
-Warn whenever a local variable or type declaration shadows another variable,
-parameter, type, or class member (in C++), or whenever a built-in function
-is shadowed. Note that in C++, the compiler warns if a local variable
-shadows an explicit typedef, but not if it shadows a struct/class/enum.
+Warn whenever a local variable or type declaration shadows another
+variable, parameter, type, class member (in C++), or instance variable
+(in Objective-C) or whenever a built-in function is shadowed. Note
+that in C++, the compiler warns if a local variable shadows an
+explicit typedef, but not if it shadows a struct/class/enum.
+
+@item -Wno-shadow-ivar @r{(Objective-C only)}
+@opindex Wno-shadow-ivar
+@opindex Wshadow-ivar
+Do not warn whenever a local variable shadows an instance variable in an
+Objective-C method.
@item -Wlarger-than=@var{len}
@opindex Wlarger-than=@var{len}
+2014-05-12 Dimitris Papavasiliou <dpapavas@gmail.com>
+
+ * objc.dg/shadow-1.m: New test.
+ * objc.dg/shadow-2.m: New test.
+ * objc.dg/ivar-scope-1.m: New test.
+ * objc.dg/ivar-scope-2.m: New test.
+ * objc.dg/ivar-scope-3.m: New test.
+ * objc.dg/ivar-scope-4.m: New test.
+ * objc.dg/ivar-visibility-1.m: New test.
+ * objc.dg/ivar-visibility-2.m: New test.
+ * objc.dg/ivar-visibility-3.m: New test.
+ * objc.dg/ivar-visibility-4.m: New test.
+
2014-05-12 Tobias Burnus <burnus@net-b.de>
PR fortran/60127