Unverified50% confidenceFactExact time
Compiler built-ins such as GCC/Clang's __builtin_trap() and MSVC's __debugbreak() usually map directly to specific CPU instructions (such as x86's int3 or ud2), with extremely low performance overhead, but they depend on the compiler implementation, and cross-platform porting requires conditional compilation.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe Inductor backend lowers computation graphs to efficient Triton GPU kernels or C++ code for CPU.68% similarUnverified编译器屏障仅阻止编译器对内存操作重排序不产生CPU指令，例如std::atomic_signal_fence或asm volatile("" ::: "memory")68% similarUnverifiedINT3（操作码0xCC）是x86架构中为调试器设计的单字节中断指令，触发后CPU产生#BP异常（异常向量3）68% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1049304API
curl https://kongchang.com/api/v1/knowledge/claims/1049304MCP
get_claim(id=1049304)