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From: "danglin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/112415] [14 regression] Python 3.11 miscompiled on HPPA with new RTL fold mem offset pass, since r14-4664-g04c9cf5c786b94
Date: Thu, 09 Nov 2023 19:17:16 +0000 [thread overview]
Message-ID: <bug-112415-4-xxwRFUdJok@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-112415-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112415
--- Comment #30 from John David Anglin <danglin at gcc dot gnu.org> ---
0x0019c684 <+588>: stw r23,0(r22)
=> 0x0019c688 <+592>: stw ret1,0(r21)
0x0019c68c <+596>: stw r31,0(r20)
0x0019c690 <+600>: b,l 0x198d58 <compiler_visit_expr1>,rp
0x0019c694 <+604>: stw ret0,0(r19)
These instructions are in a loop:
/* No * or ** args, so can use faster calling sequence */
for (i = 0; i < nelts; i++) {
expr_ty elt = asdl_seq_GET(args, i);
assert(elt->kind != Starred_kind);
VISIT(c, expr, elt);
}
r21 is clobbered by VISIT call. Value is okay in first iteration.
The initialization instructions are outside the loop:
0x0019c638 <+512>: ldo 184(r19),r22
0x0019c63c <+516>: ldw 184(r19),r14
0x0019c640 <+520>: ldo 188(r19),r21
0x0019c644 <+524>: ldw 188(r19),r13
0x0019c648 <+528>: ldo 18c(r19),r20
0x0019c64c <+532>: ldw 18c(r19),r12
0x0019c650 <+536>: ldw 190(r19),r11
next prev parent reply other threads:[~2023-11-09 19:17 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-06 21:00 [Bug rtl-optimization/112415] New: [14 regression] Python 3.11 miscompiled " sjames at gcc dot gnu.org
2023-11-06 21:00 ` [Bug rtl-optimization/112415] [14 regression] Python 3.11 miscompiled on HPPA " sjames at gcc dot gnu.org
2023-11-06 21:01 ` sjames at gcc dot gnu.org
2023-11-06 21:03 ` pinskia at gcc dot gnu.org
2023-11-06 21:31 ` dave.anglin at bell dot net
2023-11-06 22:09 ` sjames at gcc dot gnu.org
2023-11-06 22:11 ` sjames at gcc dot gnu.org
2023-11-06 22:20 ` law at gcc dot gnu.org
2023-11-06 22:33 ` dave.anglin at bell dot net
2023-11-06 22:49 ` sjames at gcc dot gnu.org
2023-11-06 23:11 ` sjames at gcc dot gnu.org
2023-11-06 23:18 ` dave.anglin at bell dot net
2023-11-07 14:08 ` manolis.tsamis at vrull dot eu
2023-11-07 21:12 ` sjames at gcc dot gnu.org
2023-11-08 1:36 ` sjames at gcc dot gnu.org
2023-11-08 2:24 ` dave.anglin at bell dot net
2023-11-08 10:09 ` manolis.tsamis at vrull dot eu
2023-11-08 14:42 ` jeffreyalaw at gmail dot com
2023-11-08 18:59 ` dave.anglin at bell dot net
2023-11-08 19:07 ` pinskia at gcc dot gnu.org
2023-11-08 19:16 ` law at gcc dot gnu.org
2023-11-08 19:40 ` dave.anglin at bell dot net
2023-11-08 23:33 ` pinskia at gcc dot gnu.org
2023-11-08 23:40 ` danglin at gcc dot gnu.org
2023-11-08 23:51 ` sjames at gcc dot gnu.org
2023-11-09 0:00 ` dave.anglin at bell dot net
2023-11-09 0:02 ` sjames at gcc dot gnu.org
2023-11-09 0:07 ` law at gcc dot gnu.org
2023-11-09 0:08 ` dave.anglin at bell dot net
2023-11-09 0:23 ` dave.anglin at bell dot net
2023-11-09 18:04 ` danglin at gcc dot gnu.org
2023-11-09 19:17 ` danglin at gcc dot gnu.org [this message]
2023-11-09 20:28 ` law at gcc dot gnu.org
2023-11-09 20:41 ` dave.anglin at bell dot net
2023-11-09 23:41 ` danglin at gcc dot gnu.org
2023-11-11 19:40 ` danglin at gcc dot gnu.org
2023-11-11 19:51 ` sjames at gcc dot gnu.org
2023-11-11 20:00 ` danglin at gcc dot gnu.org
2023-11-11 20:06 ` danglin at gcc dot gnu.org
2023-11-11 20:19 ` sjames at gcc dot gnu.org
2023-11-11 21:54 ` danglin at gcc dot gnu.org
2023-11-12 15:05 ` danglin at gcc dot gnu.org
2023-11-12 15:54 ` law at gcc dot gnu.org
2023-11-12 23:59 ` danglin at gcc dot gnu.org
2023-11-13 0:24 ` law at gcc dot gnu.org
2023-11-13 9:33 ` manolis.tsamis at vrull dot eu
2023-11-13 9:37 ` manolis.tsamis at vrull dot eu
2023-11-13 13:20 ` manolis.tsamis at vrull dot eu
2023-11-13 15:06 ` dave.anglin at bell dot net
2023-11-13 15:26 ` manolis.tsamis at vrull dot eu
2023-11-13 21:46 ` danglin at gcc dot gnu.org
2023-11-16 17:43 ` cvs-commit at gcc dot gnu.org
2023-11-27 20:55 ` sjames at gcc dot gnu.org
2023-11-28 12:39 ` manolis.tsamis at vrull dot eu
2024-03-18 0:22 ` cvs-commit at gcc dot gnu.org
2024-03-18 0:39 ` danglin at gcc dot gnu.org
2024-03-22 13:34 ` law at gcc dot gnu.org
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