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[libc][NFC] use __has_builtin instead of checking macros.

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This commit is contained in:
Joseph Huber 2025-01-04 13:04:35 -06:00
parent c56b74315f
commit f855ceeefc
1 changed files with 2 additions and 2 deletions
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4
libc/shared/rpc_util.h
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@ -152,10 +152,10 @@ public:
/// Suspend the thread briefly to assist the thread scheduler during busy loops.
RPC_ATTRS void sleep_briefly() {
#if defined(__NVPTX__) && defined(RPC_TARGET_IS_GPU)
#if __has_builtin(__nvvm_reflect)
if (__nvvm_reflect("__CUDA_ARCH") >= 700)
asm("nanosleep.u32 64;" ::: "memory");
#elif defined(__AMDGPU__) && defined(RPC_TARGET_IS_GPU)
#elif __has_builtin(__builtin_amdgcn_s_sleep)
__builtin_amdgcn_s_sleep(2);
#elif __has_builtin(__builtin_ia32_pause)
__builtin_ia32_pause();