[Bug target/69734] no_caller_saved_registers attribute doesn't work with -mavx512f -g

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69734

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-02-09
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Mask registers are spilled with

        kmovw   %k0, -88(%rbp)
        kmovw   %k1, -86(%rbp)
        kmovw   %k2, -84(%rbp)
        kmovw   %k3, -82(%rbp)
        kmovw   %k4, -80(%rbp)
        kmovw   %k5, -78(%rbp)
        kmovw   %k6, -76(%rbp)
        kmovw   %k7, -74(%rbp)
...
        .cfi_offset 118, -104
        .cfi_offset 119, -102
        .cfi_offset 120, -100
        .cfi_offset 121, -98
        .cfi_offset 122, -96
        .cfi_offset 123, -94
        .cfi_offset 124, -92
        .cfi_offset 125, -90

But the minimum stack slot for spill is 4 byte for 32-bit target
and 8 byte for 64-bit target.