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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/106746] [13 Regression] '-fcompare-debug' failure
 (length) with -O2 -fsched2-use-superblocks since r13-2041-g6624ad73064de241
Date: Tue, 30 Aug 2022 15:48:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106746

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
This debug INSN:

(debug_insn 29 28 30 2 (var_location:BLK D#2 (concatn:BLK [
            (mem/j:SI (plus:DI (plus:DI (ashift:DI (zero_extend:DI (and:SI
(mem:SI (plus:DI (reg/f:DI 7 sp)=20
                                            (const_int 72 [0x48])) [1  S4
A512])
                                    (const_int 15 [0xf])))
                            (const_int 2 [0x2]))
                        (reg/f:DI 7 sp))
                    (const_int 8 [0x8])) [1
VIEW_CONVERT_EXPR<int[16]>(vectmp.9)[_18]+0 S4 A32])
            (mem/j:SI (plus:DI (plus:DI (ashift:DI (zero_extend:DI (and:SI
(mem:SI (plus:DI (reg/f:DI 7 sp)=20
                                            (const_int 76 [0x4c])) [1  S4 A=
32])
                                    (const_int 15 [0xf])))
                            (const_int 2 [0x2]))
                        (reg/f:DI 7 sp))
                    (const_int 8 [0x8])) [1
VIEW_CONVERT_EXPR<int[16]>(vectmp.9)[_21]+0 S4 A32])
            (mem/j:SI (plus:DI (plus:DI (ashift:DI (zero_extend:DI (and:SI
(mem:SI (plus:DI (reg/f:DI 7 sp)=20
                                            (const_int 80 [0x50])) [1  S4 A=
64])
                                    (const_int 15 [0xf])))

triggered the failure.=