[Bug target/59787] [ARM] mmx-2.c causes ICE when GCC is configured for cortex-a5/vfpv3-d16-fp16

[renlin.li at arm dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59787

Renlin Li <renlin.li at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |renlin.li at arm dot com,
                   |                            |yufeng at gcc dot gnu.org

--- Comment #1 from Renlin Li <renlin.li at arm dot com> ---
Confirm that, gcc.target/arm/mmx-2.c cause an ICE with the following
configuration.
--target=arm-none-linux-gnueabihf
--with-arch=armv7-a
--with-fpu=vfpv3-d16
--with-float=softfp


(insn 51 50 52 2 (set (reg:DI 534 [orig:139 D.4720 ] [139])
        (mem/v/c:DI (plus:SI (reg/f:SI 102 sfp)
                (const_int -20 [0xffffffffffffffec])) [0 llsink+0 S8 A64]))
mmx-2.c:4
2 447 {*iwmmxt_arm_movdi}
     (nil))

(insn 573 0 0 (set (reg:DI 139 [ D.4720 ])
        (reg:DI 534 [orig:139 D.4720 ] [139])) -1
     (nil))

lra_constraints() keeps reloading <reg 139> until Max. number of reload insns
is reached.