在 2025-02-06 20:19, Martin Storsjö 写道:
Hmm, using __asm__ this way does seem to be enough to avoid the issue in practice with Clang, but I presume you mean that there's a risk that a future version of Clang might still optimize it back to sincos()?See e.g. https://gcc.godbolt.org/z/xParTM577 for a comparison of how Clang and GCC behave with this test snippet.
Yes exactly. If it has to be implemented in assembly then there should be a reason like that. -- Best regards, LIU Hao
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