https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753
Bug ID: 112753
Summary: [14 Regression] unrecognizable insn building glibc for
s390x
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jsm28 at gcc dot gnu.org
CC: jchrist at linux dot ibm.com
Target Milestone: ---
Target: s390*-*-*
Created attachment 56709
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56709&action=edit
preprocessed source
An ICE building glibc for s390x-linux-gnu was introduced by the commit
commit 466b100e5fee808d77598e0f294654deec281150
Author: Juergen Christ <jchr...@linux.ibm.com>
Date: Mon Nov 20 09:13:10 2023 +0100
s390: implement flags output
Compile the attached test with -O2.
In file included from ../sysdeps/ieee754/ldbl-64-128/strtold_l.c:58:
./strtod_l.c: In function 'round_and_return':
./strtod_l.c:356:1: error: unrecognizable insn:
(insn 252 251 253 30 (set (reg:FPRX2 187)
(subreg:FPRX2 (reg:TF 186) 0)) "./strtod_l.c":309:218 discrim 1 -1
(nil))
during RTL pass: vregs
./strtod_l.c:356:1: internal compiler error: in extract_insn, at recog.cc:2804
0x6f8bb8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/scratch/jmyers/glibc/many14/src/gcc/gcc/rtl-error.cc:108
0x6f8bda _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/scratch/jmyers/glibc/many14/src/gcc/gcc/rtl-error.cc:116
0x6f759b extract_insn(rtx_insn*)
/scratch/jmyers/glibc/many14/src/gcc/gcc/recog.cc:2804
0xb85405 instantiate_virtual_regs_in_insn
/scratch/jmyers/glibc/many14/src/gcc/gcc/function.cc:1610
0xb85405 instantiate_virtual_regs
/scratch/jmyers/glibc/many14/src/gcc/gcc/function.cc:1993
0xb85405 execute
/scratch/jmyers/glibc/many14/src/gcc/gcc/function.cc:2040
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