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thread_pause: use correct assembler syntax on powerpc*-apple-darwin

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Fixes: https://github.com/boostorg/atomic/issues/79
This commit is contained in:
Sergey Fedorov
2025-12-13 21:33:23 +08:00
committed by Andrey Semashev
parent 23b53aebe6
commit 3840be856e
1 changed files with 4 additions and 0 deletions
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4
include/boost/atomic/thread_pause.hpp
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@@ -75,7 +75,11 @@ BOOST_FORCEINLINE void thread_pause() noexcept
#elif (defined(__ARM_ARCH) && __ARM_ARCH >= 8) || defined(__ARM_ARCH_8A__)
__asm__ __volatile__("yield" : : : "memory");
#elif (defined(__POWERPC__) || defined(__PPC__))
#if defined(__APPLE__)
__asm__ __volatile__("or r27,r27,r27" : : : "memory"); // yield pseudo-instruction
#else
__asm__ __volatile__("or 27,27,27" : : : "memory"); // yield pseudo-instruction
#endif
#elif defined(__riscv) && (__riscv_xlen == 64)
#if defined(__riscv_zihintpause)
__asm__ __volatile__("pause" : : : "memory");