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libstdc++: Add unused attributes to suppress warnings 

libstdc++-v3/ChangeLog:

	* include/bits/atomic_base.h: Fix -Wunused-variable
	warnings.
	* include/ext/new_allocator.h: Fix -Wunused-parameter
	warnings.
This commit is contained in:
Krystian Kuźniarek 2020-09-10 17:09:15 +01:00 committed by Jonathan Wakely
parent afea21f961
commit 2b4cc19bd5
2 changed files with 45 additions and 23 deletions
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66
libstdc++-v3/include/bits/atomic_base.h
View File

@ -231,7 +231,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE void
clear(memory_order __m = memory_order_seq_cst) noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_consume);
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -242,7 +243,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE void
clear(memory_order __m = memory_order_seq_cst) volatile noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_consume);
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -416,7 +418,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE void
store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
__glibcxx_assert(__b != memory_order_consume);
@ -428,7 +431,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
store(__int_type __i,
memory_order __m = memory_order_seq_cst) volatile noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
__glibcxx_assert(__b != memory_order_consume);
@ -439,7 +443,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE __int_type
load(memory_order __m = memory_order_seq_cst) const noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_release);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -449,7 +454,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE __int_type
load(memory_order __m = memory_order_seq_cst) const volatile noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_release);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -475,8 +481,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
compare_exchange_weak(__int_type& __i1, __int_type __i2,
memory_order __m1, memory_order __m2) noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);
__glibcxx_assert(__b2 <= __b1);
@ -490,8 +498,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
memory_order __m1,
memory_order __m2) volatile noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);
__glibcxx_assert(__b2 <= __b1);
@ -520,8 +530,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
compare_exchange_strong(__int_type& __i1, __int_type __i2,
memory_order __m1, memory_order __m2) noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);
__glibcxx_assert(__b2 <= __b1);
@ -535,8 +547,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
memory_order __m1,
memory_order __m2) volatile noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);
@ -736,7 +750,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
store(__pointer_type __p,
memory_order __m = memory_order_seq_cst) noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -749,7 +764,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
store(__pointer_type __p,
memory_order __m = memory_order_seq_cst) volatile noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_acquire);
__glibcxx_assert(__b != memory_order_acq_rel);
__glibcxx_assert(__b != memory_order_consume);
@ -760,7 +776,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE __pointer_type
load(memory_order __m = memory_order_seq_cst) const noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_release);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -770,7 +787,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_GLIBCXX_ALWAYS_INLINE __pointer_type
load(memory_order __m = memory_order_seq_cst) const volatile noexcept
{
memory_order __b = __m & __memory_order_mask;
memory_order __b __attribute__ ((__unused__))
= __m & __memory_order_mask;
__glibcxx_assert(__b != memory_order_release);
__glibcxx_assert(__b != memory_order_acq_rel);
@ -797,8 +815,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
memory_order __m1,
memory_order __m2) noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);
__glibcxx_assert(__b2 <= __b1);
@ -812,8 +832,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
memory_order __m1,
memory_order __m2) volatile noexcept
{
memory_order __b2 = __m2 & __memory_order_mask;
memory_order __b1 = __m1 & __memory_order_mask;
memory_order __b2 __attribute__ ((__unused__))
= __m2 & __memory_order_mask;
memory_order __b1 __attribute__ ((__unused__))
= __m1 & __memory_order_mask;
__glibcxx_assert(__b2 != memory_order_release);
__glibcxx_assert(__b2 != memory_order_acq_rel);

2
libstdc++-v3/include/ext/new_allocator.h
View File

@ -117,7 +117,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// __p is not permitted to be a null pointer.
void
deallocate(_Tp* __p, size_type __t)
deallocate(_Tp* __p, size_type __t __attribute__ ((__unused__)))
{
#if __cpp_aligned_new
if (alignof(_Tp) > __STDCPP_DEFAULT_NEW_ALIGNMENT__)