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* [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x
@ 2023-11-28 22:42 jsm28 at gcc dot gnu.org
  2023-11-29  6:55 ` [Bug target/112753] " rguenth at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2023-11-28 22:42 UTC (permalink / raw)
  To: gcc-bugs

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 <jchrist@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
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/112753] [14 Regression] unrecognizable insn building glibc for s390x
  2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
@ 2023-11-29  6:55 ` rguenth at gcc dot gnu.org
  2023-11-30 20:29 ` jakub at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-11-29  6:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
   Target Milestone|---                         |14.0

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/112753] [14 Regression] unrecognizable insn building glibc for s390x
  2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
  2023-11-29  6:55 ` [Bug target/112753] " rguenth at gcc dot gnu.org
@ 2023-11-30 20:29 ` jakub at gcc dot gnu.org
  2023-11-30 21:03 ` jakub at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-11-30 20:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753

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> ---
I think
--- gcc/config/s390/s390.cc.jj  2023-11-30 21:18:50.678840298 +0100
+++ gcc/config/s390/s390.cc     2023-11-30 21:27:28.952545221 +0100
@@ -17604,6 +17604,10 @@ s390_md_asm_adjust (vec<rtx> &outputs, v
       outputs[i] = fprx2;
     }

+  if (!TARGET_VXE)
+    /* Long doubles are stored in FPR pairs - nothing to do.  */
+    return after_md_seq;
+
   for (unsigned i = 0; i < ninputs; i++)
     {
       if (GET_MODE (inputs[i]) != TFmode)
should fix this.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/112753] [14 Regression] unrecognizable insn building glibc for s390x
  2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
  2023-11-29  6:55 ` [Bug target/112753] " rguenth at gcc dot gnu.org
  2023-11-30 20:29 ` jakub at gcc dot gnu.org
@ 2023-11-30 21:03 ` jakub at gcc dot gnu.org
  2023-12-01  7:19 ` cvs-commit at gcc dot gnu.org
  2023-12-01 11:55 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-11-30 21:03 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
   Last reconfirmed|                            |2023-11-30
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 56737
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56737&action=edit
gcc14-pr112753.patch

Full patch I'm going to bootstrap/regtest now.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/112753] [14 Regression] unrecognizable insn building glibc for s390x
  2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2023-11-30 21:03 ` jakub at gcc dot gnu.org
@ 2023-12-01  7:19 ` cvs-commit at gcc dot gnu.org
  2023-12-01 11:55 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-12-01  7:19 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andreas Krebbel <krebbel@gcc.gnu.org>:

https://gcc.gnu.org/g:8a2e428591dc97d573cf5c1789c84c8a3884b364

commit r14-6040-g8a2e428591dc97d573cf5c1789c84c8a3884b364
Author: Juergen Christ <jchrist@linux.ibm.com>
Date:   Fri Dec 1 08:01:36 2023 +0100

    s390x: Fix s390_md_asm_adjust handling of long doubles [PR112753]

    Commit 466b100e5fee808d77598e0f294654deec281150 introduced a bug in
    s390_md_asm_adjust if vector extensions are not available.  Fix the
    control flow of this function to not adjust long double values.

    gcc/ChangeLog:

            PR target/112753
            * config/s390/s390.cc (s390_md_asm_adjust): Return after dealing
            with the outputs, if no further processing of long doubles is
            required.

    gcc/testsuite/ChangeLog:

            * gcc.target/s390/pr112753.c: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/112753] [14 Regression] unrecognizable insn building glibc for s390x
  2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2023-12-01  7:19 ` cvs-commit at gcc dot gnu.org
@ 2023-12-01 11:55 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-12-01 11:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112753

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|jakub at gcc dot gnu.org           |unassigned at gcc dot gnu.org
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.

^ permalink raw reply	[flat|nested] 6+ messages in thread

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2023-11-28 22:42 [Bug target/112753] New: [14 Regression] unrecognizable insn building glibc for s390x jsm28 at gcc dot gnu.org
2023-11-29  6:55 ` [Bug target/112753] " rguenth at gcc dot gnu.org
2023-11-30 20:29 ` jakub at gcc dot gnu.org
2023-11-30 21:03 ` jakub at gcc dot gnu.org
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