[Qemu-devel] bug in popcnt emulation with some register operand(s)?

[Andriy Gapon]

I am running Qemu (plain, no kvm, etc) on an AMD 10h machine that provides
popcnt instruction.
Qemu advertises availability of pocnt to a guest as well.
What I see in the guest that popcnt 0x20(%r12),%r8 instruction actually placed
its result into %rax.  With %rdi and %rax operands the instruction worked fine
though.

-- 
Andriy Gapon