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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/101025] [11/12 Regression] wrong code at -O3 on x86_64-linux-gnu
Date: Fri, 11 Jun 2021 08:27:28 +0000	[thread overview]
Message-ID: <bug-101025-4-UyKM4ma0jj@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-101025-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101025

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Shorter IL testcase:

int a[10];
int b, d, g;
volatile char c;
short e;
volatile int f;
int main()
{
  for (; d <= 9; d++) {
      b = e = 0;
      for (; e < 4; e++)
        a[e] = 4;
      for (; b <= 3; b++)
        if (g)
          f = 0;
        else
          a[b] = c;
  }
  if (a[1] != 0)
    __builtin_abort ();
  return 0;
}

  parent reply	other threads:[~2021-06-11  8:27 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-11  4:51 [Bug tree-optimization/101025] New: " qrzhang at gatech dot edu
2021-06-11  8:15 ` [Bug tree-optimization/101025] [11/12 Regression] " rguenth at gcc dot gnu.org
2021-06-11  8:27 ` rguenth at gcc dot gnu.org [this message]
2021-06-11  8:59 ` marxin at gcc dot gnu.org
2021-06-11  9:08 ` marxin at gcc dot gnu.org
2021-06-11  9:08 ` rguenth at gcc dot gnu.org
2021-06-11 16:13 ` cvs-commit at gcc dot gnu.org
2021-06-11 16:13 ` [Bug tree-optimization/101025] [11 " rguenth at gcc dot gnu.org
2021-06-11 16:26 ` qrzhang at gatech dot edu
2021-06-16 10:16 ` rguenth at gcc dot gnu.org
2021-07-07 14:06 ` cvs-commit at gcc dot gnu.org
2021-07-07 14:08 ` rguenth at gcc dot gnu.org

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