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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/107176] [10/11/12/13 Regression] Wrong code at -Os on x86_64-pc-linux-gnu
Date: Fri, 07 Oct 2022 07:30:19 +0000	[thread overview]
Message-ID: <bug-107176-4-OJcquuHCyg@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-107176-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107176

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
final value replacement:
  b_lsm.8_26 = PHI <b_lsm.8_15(4)>
 with expr: 1
 final stmt:
  b_lsm.8_26 = 1;

where

(get_scalar_evolution
  (scalar = b_lsm.8_15)
  (scalar_evolution = {0, +, 1}_1))
(chrec_apply
  (varying_loop = 1)
  (chrec = {0, +, 1}_1)
  (x = 1)
  (res = 1))

and

  <bb 3> [local count: 955630225]:
  _1 = (unsigned int) b_lsm.8_15;
  _2 = _1 + 4294967206;
  # RANGE [irange] long int [0, 4294967295] NONZERO 0xffffffff
  _12 = (long int) _2;
  # RANGE [irange] long int [91, 4294967386] NONZERO 0x1ffffffff
  _3 = _12 + 91;

  <bb 4> [local count: 1073741824]:
  # b_lsm.8_15 = PHI <0(2), _3(3)>

  parent reply	other threads:[~2022-10-07  7:30 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-06 20:41 [Bug c/107176] New: Wrong code at -O0/-Os " shaohua.li at inf dot ethz.ch
2022-10-06 20:50 ` [Bug tree-optimization/107176] [10/11/12/13 Regression] Wrong code at -Os " pinskia at gcc dot gnu.org
2022-10-07  7:30 ` rguenth at gcc dot gnu.org [this message]
2022-10-07 14:36 ` [Bug tree-optimization/107176] [10/11/12/13 Regression] Wrong code at -Os on x86_64-pc-linux-gnu since r7-2012-g43aabfcfd4139e4c marxin at gcc dot gnu.org
2022-10-18  8:35 ` rguenth at gcc dot gnu.org
2022-10-21 13:25 ` rguenth at gcc dot gnu.org
2022-10-24  8:30 ` rguenth at gcc dot gnu.org
2022-10-24  9:54 ` rguenth at gcc dot gnu.org
2022-10-24 13:31 ` rguenth at gcc dot gnu.org
2022-10-25 11:40 ` cvs-commit at gcc dot gnu.org
2022-10-25 11:41 ` [Bug tree-optimization/107176] [10/11/12 " rguenth at gcc dot gnu.org
2022-11-28 10:18 ` rguenth at gcc dot gnu.org
2023-07-07 10:44 ` [Bug tree-optimization/107176] [11/12 " rguenth at gcc dot gnu.org

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