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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113921] Output register of an "asm volatile goto" is incorrectly clobbered/discarded
Date: Wed, 14 Feb 2024 18:00:48 +0000 [thread overview]
Message-ID: <bug-113921-4-8RJw4iks4k@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113921-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Bisection points to r12-5301-g045206450386bcd774db3bde0c696828402361c6 making
the problem go away,
3abc: b8 10 28 00 00 mov $0x2810,%eax
3ac1: 0f 78 c0 vmread %rax,%rax
3ac4: 0f 86 1e 01 00 00 jbe 3be8
<sync_vmcs02_to_vmcs12+0x858>
3aca: 45 31 e4 xor %r12d,%r12d
3acd: 4c 89 a3 f0 00 00 00 mov %r12,0xf0(%rbx)
to
3a4f: b8 10 28 00 00 mov $0x2810,%eax
3a54: 0f 78 c0 vmread %rax,%rax
3a57: 0f 86 1b 01 00 00 jbe 3b78
<sync_vmcs02_to_vmcs12+0x808>
3a5d: 48 89 83 f0 00 00 00 mov %rax,0xf0(%rbx)
next prev parent reply other threads:[~2024-02-14 18:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-14 17:19 [Bug c/113921] New: " seanjc at google dot com
2024-02-14 18:00 ` jakub at gcc dot gnu.org [this message]
2024-02-14 18:13 ` [Bug middle-end/113921] " torvalds@linux-foundation.org
2024-02-14 18:16 ` torvalds@linux-foundation.org
2024-02-14 18:21 ` jakub at gcc dot gnu.org
2024-02-14 18:25 ` torvalds@linux-foundation.org
2024-02-14 18:40 ` jakub at gcc dot gnu.org
2024-02-14 19:07 ` jakub at gcc dot gnu.org
2024-02-14 20:31 ` jakub at gcc dot gnu.org
2024-02-15 8:00 ` rguenth at gcc dot gnu.org
2024-02-15 8:21 ` jakub at gcc dot gnu.org
2024-02-15 14:56 ` cvs-commit at gcc dot gnu.org
2024-02-15 15:14 ` cvs-commit at gcc dot gnu.org
2024-02-15 15:17 ` cvs-commit at gcc dot gnu.org
2024-02-15 15:20 ` cvs-commit at gcc dot gnu.org
2024-02-15 15:22 ` jakub at gcc dot gnu.org
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