9b9fe4166f
Summary:
Prevents -Wunneeded-internal-delcaration warnings when the target has no
other references. This occurs frequently in device drivers in the Linux
kernel.
Sema would need to invoke the demangler on the target, since in C++ the
target name is mangled:
int f() { return 42; }
int g() __attribute__((alias("_Z1fv")));
Sema does not have the ability to demangle names at this time.
https://bugs.llvm.org/show_bug.cgi?id=39088
https://github.com/ClangBuiltLinux/linux/issues/232
Reviewers: rsmith, rjmccall
Reviewed By: rsmith
Subscribers: erik.pilkington, cfe-commits, pirama, srhines
Differential Revision: https://reviews.llvm.org/D54188
llvm-svn: 350776
8 lines
285 B
C
8 lines
285 B
C
// RUN: %clang_cc1 -triple x86_64-linux-gnu -Wunneeded-internal-declaration -x c -verify %s
|
|
// expected-no-diagnostics
|
|
static int f() { return 42; }
|
|
int g() __attribute__((alias("f")));
|
|
|
|
static int foo [] = { 42, 0xDEAD };
|
|
extern typeof(foo) bar __attribute__((unused, alias("foo")));
|