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From: "erhard_f at mailbox dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113652] [14 regression] Failed bootstrap on ppc unrecognized opcode: `lfiwzx' with -mcpu=7450
Date: Mon, 29 Jan 2024 16:50:35 +0000 [thread overview]
Message-ID: <bug-113652-4-w1Rtbpl4gH@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113652-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113652
--- Comment #3 from Erhard F. <erhard_f at mailbox dot org> ---
(In reply to Christopher Fore from comment #0)
> Created attachment 57251 [details]
> original preprocessed file
>
> Steps to reproduce:
> 1. Attempt to build GCC 14 (latest snapshot attempted is Gentoo's 20240128)
> 2. Fails to assemble with:
> /tmp/ccP8ev2f.s: Assembler messages:
> /tmp/ccP8ev2f.s:85: Error: unrecognized opcode: `lfiwzx'
>
> Originally reported downstream at: https://bugs.gentoo.org/921621
>
> Command to reproduce:
> gcc -mcpu=7450 -O1 -mvsx -c _kf_to_sd.i
I did the Gentoo downstream bugreport where I tried to build GCC 14 with GCC 11
+ binutils 2.41. Building was done on a 32 bit partition on my Talos II via
'setarch ppc32 emerge -1 gcc'.
As the PowerPC 7450 (aka PowerPC G4) is only capable of -maltivec but not -mvsx
I only passed "-O2 -mcpu=7450 -mtune=7450" as CFLAGS.
Still my GCC 14 build spills this "unrecognized opcode: `lfiwzx'" which is a
Power ISA 2.06 (POWER 7) opcode. GCC 11 builds fine on the same system.
next prev parent reply other threads:[~2024-01-29 16:50 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-29 13:01 [Bug target/113652] New: ppc: unrecognized opcode: `lfiwzx' csfore at posteo dot net
2024-01-29 13:07 ` [Bug target/113652] [14 regression] Failed bootstrap on ppc unrecognized opcode: `lfiwzx' with -mcpu=7450 rguenth at gcc dot gnu.org
2024-01-29 13:12 ` csfore at posteo dot net
2024-01-29 16:50 ` erhard_f at mailbox dot org [this message]
2024-01-29 17:51 ` csfore at posteo dot net
2024-01-29 20:49 ` csfore at posteo dot net
2024-01-30 3:05 ` linkw at gcc dot gnu.org
2024-01-30 3:26 ` linkw at gcc dot gnu.org
2024-01-30 3:44 ` pinskia at gcc dot gnu.org
2024-01-30 6:16 ` [Bug target/113652] " linkw at gcc dot gnu.org
2024-01-30 6:18 ` sjames at gcc dot gnu.org
2024-01-30 6:37 ` linkw at gcc dot gnu.org
2024-01-30 6:59 ` [Bug target/113652] [14 regression] " linkw at gcc dot gnu.org
2024-01-30 8:58 ` linkw at gcc dot gnu.org
2024-02-07 23:15 ` amodra at gmail dot com
2024-02-09 4:21 ` bergner at gcc dot gnu.org
2024-02-12 12:38 ` csfore at posteo dot net
2024-02-15 10:29 ` erhard_f at mailbox dot org
2024-03-27 13:46 ` rguenth at gcc dot gnu.org
2024-03-28 20:37 ` meissner at gcc dot gnu.org
2024-03-29 12:58 ` segher at gcc dot gnu.org
2024-03-29 13:04 ` segher at gcc dot gnu.org
2024-03-29 21:17 ` bergner at gcc dot gnu.org
2024-04-13 4:39 ` meissner at gcc dot gnu.org
2024-05-07 7:44 ` [Bug target/113652] [14/15 " rguenth at gcc dot gnu.org
2024-05-09 3:18 ` bergner at gcc dot gnu.org
2024-05-09 9:41 ` segher at gcc dot gnu.org
2024-05-09 13:55 ` erhard_f at mailbox dot org
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