(for x86 and amd64): Change the type of the shadow regs for floating point registers

Similar to r12444 (see Log below), but this is doing it for x86 and amd64.
The xmm registers are using uint32 or uint64 for their float
union components. For the i387 80 bits float registers, as there is
no uint80, a struct uint16 + uint64 is defined.


  Log:
    Change the type of the shadow regs for floating point registers
    to be uint64. Previously the value in such a shadow reg would
    be interpreted by gdb as a floating point value which would 
    produce non-sensible output for e.g   p/x $f1s1.
    This patch covers the power and arm architectures.




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12445 a5019735-40e9-0310-863c-91ae7b9d1cf9
10 files changed