[Bug target/104448] [10/11/12 Regression] ICE: in initialize, at function-abi.cc:108 with -mavx5124vnniw / -mavx5124fmaps -mno-xsave -mabi=ms

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104448

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-02-09
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
   Target Milestone|---                         |10.4

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
108                 gcc_assert (overlaps_hard_reg_set_p (all_clobbers, mode,
regno)
109                             && overlaps_hard_reg_set_p (m_mode_clobbers[i],
110                                                         mode, regno));

(gdb) p debug_hard_reg_set(all_clobbers) 
{ 0 1 2 8 9 10 11 12 13 14 15 17 18 20 21 22 23 24 25 28 29 30 31 32 33 34 35
36 37 38 39 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73
74 75 }

$1 = void
(gdb) p regno
$2 = 44

Confirmed.  Quite possibly the -mabi=ms support is incomplete here.