https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126686
Drea Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ICE in require, at |[16/17 Regression] ICE in
|machmode.h:323 since r16-26 |require, at machmode.h:323
|with |since r16-26 with
|-favoid-store-forwarding |-favoid-store-forwarding
Target Milestone|--- |16.2
CC| |konstantinos.eleftheriou@vr
| |ull.eu
--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
Store forwarding detected:
From: (insn 22 20 23 2 (set (mem/c:HI (plus:DI (reg/f:DI 34 %fp)
(const_int -2 [0xfffffffffffffffe])) [0 MEM <char[1:2]> [(void
*)&f + 6B]+0 S2 A16])
(subreg:HI (reg:SI 77) 2)) :6:3 1955 {*movhi}
(expr_list:REG_DEAD (reg:SI 77)
(nil)))
From: (insn 5 9 15 2 (parallel [
(set (mem/c:BLK (plus:DI (reg/f:DI 34 %fp)
(const_int -8 [0xfffffffffffffff8])) [1 MEM <char[6]>
[(long int *)&f]+0 S6 A64])
(const_int 0 [0]))
(use (const_int 5 [0x5]))
(use (const:BLK (unspec:BLK [
(const_int 0 [0])
] UNSPEC_INSN)))
(clobber (scratch:DI))
(clobber (reg:CC 33 %cc))
]) :5:8 2007 {*clrmem_short}
(expr_list:REG_UNUSED (reg:CC 33 %cc)
(nil)))
To: (insn 23 22 26 2 (set (reg:DI 79 [ f ])
(mem/c:DI (plus:DI (reg/f:DI 34 %fp)
(const_int -8 [0xfffffffffffffff8])) [1 f+0 S8 A64])) :7:7 1913
{*movdi_64}
(nil))
(Load elimination candidate)
