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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/115192] [11/12/13/14/15 regression] -O3 miscompilation on x86-64 (loops with vectors and scalars) since r11-6380
Date: Thu, 23 May 2024 07:14:07 +0000	[thread overview]
Message-ID: <bug-115192-4-d7HHROjiVk@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-115192-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115192

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #7)
> int main()
> { 
>   const int n = 3;
>   float d[n*n];
>   float4_t a[n*n];

I'd recommend using #define n 3 or enum { n = 3 }; instead of const int n = 3;
so that the arrays aren't unnecessary VLAs.

  parent reply	other threads:[~2024-05-23  7:14 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-22 14:54 [Bug c++/115192] New: GCC 14.1.0 -O3 miscompilation on x86-64 (loops with vectors and scalars) jukka.suomela at aalto dot fi
2024-05-22 14:55 ` [Bug c++/115192] " jukka.suomela at aalto dot fi
2024-05-22 15:29 ` [Bug c++/115192] [14/15 regression] " sjames at gcc dot gnu.org
2024-05-22 15:37 ` [Bug c++/115192] [14/15 regression] -O3 miscompilation on x86-64 (loops with vectors and scalars) since r14-2117 jakub at gcc dot gnu.org
2024-05-22 17:02 ` jukka.suomela at aalto dot fi
2024-05-22 17:12 ` jakub at gcc dot gnu.org
2024-05-22 17:36 ` [Bug c++/115192] [11/12/13/14/15 regression] -O3 miscompilation on x86-64 (loops with vectors and scalars) since r11-6380 sjames at gcc dot gnu.org
2024-05-23  7:05 ` rguenth at gcc dot gnu.org
2024-05-23  7:14 ` jakub at gcc dot gnu.org [this message]
2024-05-23  8:09 ` rguenth at gcc dot gnu.org
2024-05-23  8:10 ` rguenth at gcc dot gnu.org
2024-05-23  9:32 ` rsandifo at gcc dot gnu.org
2024-05-24 12:47 ` cvs-commit at gcc dot gnu.org
2024-05-24 12:48 ` [Bug c++/115192] [11/12/13/14 " rsandifo at gcc dot gnu.org
2024-05-31  7:23 ` cvs-commit at gcc dot gnu.org
2024-05-31 14:56 ` [Bug c++/115192] [11/12/13 " cvs-commit at gcc dot gnu.org
2024-06-04  7:47 ` [Bug c++/115192] [11/12 " cvs-commit at gcc dot gnu.org
2024-06-04 12:47 ` [Bug c++/115192] [11 " cvs-commit at gcc dot gnu.org
2024-06-04 12:48 ` rsandifo at gcc dot gnu.org

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