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util: Implement p_atomic_read for C++ properly.

Browse source 
../src/compiler/glsl/ast_function.cpp
..\src\util/u_cpu_detect.h(168): error C2220: the following warning is treated as an error
..\src\util/u_cpu_detect.h(168): warning C4197: 'uint32_t *volatile ': top-level volatile in cast is ignored
[325/1703] Compiling C++ object src/compiler/glsl/libglsl.a.p/builtin_functions.cpp.obj

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36863>
This commit is contained in:
Yonggang Luo 2025-08-15 01:15:31 +08:00 • committed by Marge Bot
parent de1a2a3537
commit dda1692484
1 changed files with 1 additions and 1 deletions
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2
src/util/u_atomic.h
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@ -139,7 +139,7 @@ __forceinline short _interlockedadd16(short volatile * _Addend, short _Value)
#define p_atomic_set(_v, _i) (*(_v) = (_i))
#if defined(__cplusplus)
#include <type_traits>
#define p_atomic_read(_v) (*reinterpret_cast<std::add_volatile_t<decltype(_v)>>(_v))
#define p_atomic_read(_v) (*reinterpret_cast<std::add_pointer_t<std::add_volatile_t<std::remove_pointer_t<decltype(_v)>>>>(_v))
#else
#define p_atomic_read(_v) (_Generic(*(_v), \
bool : *((volatile bool*) (_v)), \