Can you provide a clearer repro example of what doesn't wirk on mipsel platform?
In last two QEMU releases mips (Wave) developers went to great lenghts making sure both mips SIMD and mips FP instructions (in both scalar and vector variants) are emulated properly. Some of the unit tests were published, but also many were left internal, and there are many integration tests devised and run as well. We in mips (Wave) consider these two areas well tested. Still, we'll consider seriuosly fixing your example, if you prove experimentally that this is a mips-related bug, but just provides us with a reasonably convenient repro procedure. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1851095 Title: [feature request] awareness of instructions that are well emulated Status in QEMU: Invalid Bug description: While qemu's scalar emulation tends to be excellent, qemu's SIMD emulation tends to be incorrect (except for arm64 from x86_64)--i have found this both for mipsel and arm32. Until these code paths are audited, which is probably a large job, it would be nice if qemu knew its emulation of this class of instructions was not very good, and thus it would give up on finding these instructions if a "careful" operation is passed. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1851095/+subscriptions