Dnia 3 stycznia 2025 00:17:11 CET, Peter Pentchev napisał/a: > So yeah, does this look like a qemu bug, or a compiler bug? I'm still > not completely sure, but from the source code it does not really seem to be a libzstd bug - it leaves __builtin_prefetch() to GCC..
More than anything, I suspect it to be a kernel bug. GCC already emits other floating point instructions on this arch and the kernel emulates them when the fpu is not available. There is some mention of prefx in the code: <https://elixir.bootlin.com/linux/v6.12.6/source/arch/mips/math-emu/cp1emu.c#L1664> Greetings, Mateusz
