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From: "rogerio.souza at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/105593] New: avx512 math function raises uninitialized variable warning
Date: Fri, 13 May 2022 14:35:19 +0000 [thread overview]
Message-ID: <bug-105593-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
Bug ID: 105593
Summary: avx512 math function raises uninitialized variable
warning
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
When using avx512 math function we got the following warning:
/<gcc_path>/lib/gcc/x86_64-redhat-linux/12.1.0/include/avx512fintrin.h:6994:10:
error: '__Y' may be used uninitialized [-Werror=maybe-uninitialized]
The code that triggers the error is the one below, from file avx512fintrin.h:
202 extern __inline __m512i
203 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
204 _mm512_undefined_epi32 (void)
205 {
206 __m512i __Y = __Y; // Uninitialized variable "__Y"
207 return __Y;
208 }
Should this code be reviewed?
Using "-Wno-uninitialized" prevents this warning from happening.
next reply other threads:[~2022-05-13 14:35 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 14:35 rogerio.souza at gmail dot com [this message]
2022-05-13 14:42 ` [Bug target/105593] " pinskia at gcc dot gnu.org
2022-05-13 14:43 ` pinskia at gcc dot gnu.org
2022-05-13 16:58 ` rogerio.souza at gmail dot com
2022-05-13 17:04 ` rogerio.souza at gmail dot com
2022-05-16 7:16 ` [Bug c++/105593] [12/13 Regression] " rguenth at gcc dot gnu.org
2022-06-01 19:36 ` [Bug c++/105593] " jason at gcc dot gnu.org
2022-06-02 6:41 ` rguenth at gcc dot gnu.org
2022-06-23 16:18 ` rogerio.souza at gmail dot com
2022-11-22 19:14 ` pinskia at gcc dot gnu.org
2023-01-12 8:09 ` rguenth at gcc dot gnu.org
2023-01-12 11:44 ` jay+ggcc@jp-hosting.net
2023-01-12 14:03 ` jakub at gcc dot gnu.org
2023-01-12 14:26 ` jakub at gcc dot gnu.org
2023-01-12 15:10 ` jakub at gcc dot gnu.org
2023-01-16 8:41 ` cvs-commit at gcc dot gnu.org
2023-01-16 8:42 ` cvs-commit at gcc dot gnu.org
2023-01-16 9:04 ` jakub at gcc dot gnu.org
2023-01-29 15:15 ` jay+ggcc@jp-hosting.net
2023-01-30 17:46 ` jakub at gcc dot gnu.org
2023-01-31 8:21 ` cvs-commit at gcc dot gnu.org
2023-01-31 10:53 ` jay+ggcc@jp-hosting.net
2023-01-31 11:23 ` jakub at gcc dot gnu.org
2023-01-31 11:30 ` jay+ggcc@jp-hosting.net
2023-02-10 13:21 ` jakub at gcc dot gnu.org
2023-02-10 15:02 ` mpolacek at gcc dot gnu.org
2023-02-10 15:13 ` jakub at gcc dot gnu.org
2023-02-10 15:15 ` mpolacek at gcc dot gnu.org
2023-02-10 15:16 ` jakub at gcc dot gnu.org
2023-02-10 15:18 ` mpolacek at gcc dot gnu.org
2023-02-10 15:22 ` jakub at gcc dot gnu.org
2023-02-10 17:47 ` cvs-commit at gcc dot gnu.org
2023-02-10 17:47 ` cvs-commit at gcc dot gnu.org
2023-02-10 17:47 ` cvs-commit at gcc dot gnu.org
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