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From: "guojiufu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/111971] New: ICE: maximum number of generated reload insns per insn achieved (90)
Date: Wed, 25 Oct 2023 02:35:37 +0000 [thread overview]
Message-ID: <bug-111971-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111971
Bug ID: 111971
Summary: ICE: maximum number of generated reload insns per insn
achieved (90)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: guojiufu at gcc dot gnu.org
Target Milestone: ---
For the below code, an ICE occurs when built with "-m32 -O2".
```
void
foo (unsigned long long *a)
{
register long long d asm ("r0") = 0x24;
long long n;
asm ("mr %0, %1" : "=r"(n) : "r"(d));
*a++ = n;
}
```
---------------
8 | }
| ^
0x2000007c4ca3 __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
0x2000007c4f07 generic_start_main
../csu/libc-start.c:360
0x2000007c4f07 __libc_start_main_impl
../sysdeps/unix/sysv/linux/powerpc/libc-start.c:109
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-13/README.Bugs> for instructions.
----------------
It is ok if it is "register long d asm ("r0") = 0x24;".
The 'd' is 'long long' DImode(64bits), but with -m32, "r0" is not 64bits
without -mpowerpc64. So, it would say this code would be invalid in some
aspects.
next reply other threads:[~2023-10-25 2:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-25 2:35 guojiufu at gcc dot gnu.org [this message]
2023-10-25 2:36 ` [Bug rtl-optimization/111971] " guojiufu at gcc dot gnu.org
2023-10-25 2:37 ` guojiufu at gcc dot gnu.org
2023-10-25 2:50 ` pinskia at gcc dot gnu.org
2023-10-25 2:51 ` pinskia at gcc dot gnu.org
2023-10-25 8:28 ` guojiufu at gcc dot gnu.org
2023-10-26 17:28 ` [Bug rtl-optimization/111971] [12/13/14 regression] ICE: maximum number of generated reload insns per insn achieved (90) since r12-6803-g85419ac59724b7 vmakarov at gcc dot gnu.org
2023-10-27 12:31 ` rguenth at gcc dot gnu.org
2023-10-31 15:45 ` cvs-commit at gcc dot gnu.org
2023-11-22 8:32 ` guojiufu at gcc dot gnu.org
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