[Valgrind-users] Support of instruction vcvt.f64.s32

[Lu M. <kin...@gm...>]

Hello all,

I use valgrind 3.8.1 with an arm executable. However the valgrind output
the error message:

==1276== disInstr(arm): unhandled instruction: 0xEEFA0BEF cond=14(0xE)
27:20=239(0xEF) 4:4=0 3:0=15(0xF)
==1276== valgrind: Unrecognised instruction at address 0x25afc.
==1276==    at 0x25AFC: crude_dragon_weakness (in
/home/spec_exe/445.gobmk/exe/gobmk_base.armhf-gcc47)
==1276== Your program just tried to execute an instruction that Valgrind
==1276== did not recognise.  There are two possible reasons for this.
==1276== 1. Your program has a bug and erroneously jumped to a non-code
==1276==    location.  If you are running Memcheck and you just saw a
==1276==    warning about a bad jump, it's probably your program's fault.
==1276== 2. The instruction is legitimate but Valgrind doesn't handle it,
==1276==    i.e. it's Valgrind's fault.  If you think this is the case or
==1276==    you are not sure, please let us know and we'll try to fix it.
==1276== Either way, Valgrind will now raise a SIGILL signal which will
==1276== probably kill your program.
==1276==
==1276== Process terminating with default action of signal 4 (SIGILL)
==1276==  Illegal opcode at address 0x25AFC
==1276==    at 0x25AFC: crude_dragon_weakness (in
/home/spec_exe/445.gobmk/exe/gobmk_base.armhf-gcc47)

I disassemble the executable and find out that the illegal instruction
is vcvt.f64.s32
   d16, d16, #1. I am wondering whether vcvt.f64.s32 is unsupported under
valgrind or I have misuse valgrind?

Thanks a lot