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* [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128
@ 2022-03-04 13:29 acoplan at gcc dot gnu.org
  2022-03-04 13:34 ` [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f marxin at gcc dot gnu.org
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: acoplan at gcc dot gnu.org @ 2022-03-04 13:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

            Bug ID: 104782
           Summary: [12 regression] ICE: verify_gimple failed in slp
                    (non-trivial conversion in ‘ssa_name’) with
                    -msve-vector-bits=128
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: acoplan at gcc dot gnu.org
  Target Milestone: ---

The following fails:

$ cat t.c
int a, b, c;
static int d;
short *q;
void f() {
  int *p = &d;
  b = 9;
  for (b = 9; b; b--) {
    a = 2;
    for (c = 2; c <= 9; c++) {
      for (int i = 0; i < 3; i++)
        *p |= (*q)++;
    }
  }
}
$ aarch64-linux-gnu-gcc -c t.c -O3 -march=armv8.2-a+sve -msve-vector-bits=128
t.c: In function ‘f’:
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
    4 | void f() {
      |      ^
vector(8) unsigned short
vector(8) unsigned short
_115 = vect__3.32_61;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_154 = vect__138.33_4;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_193 = vect__177.34_118;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_232 = vect__216.35_139;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_271 = vect__255.36_157;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_310 = vect__294.37_178;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_349 = vect__333.38_196;
t.c:4:6: error: non-trivial conversion in ‘ssa_name’
vector(8) unsigned short
vector(8) unsigned short
_90 = vect__372.39_217;
during GIMPLE pass: slp
t.c:4:6: internal compiler error: verify_gimple failed
0xedc87e verify_gimple_in_cfg(function*, bool)
        /home/alecop01/toolchain/src/gcc/gcc/tree-cfg.cc:5561
0xd66918 execute_function_todo
        /home/alecop01/toolchain/src/gcc/gcc/passes.cc:2084
0xd66a80 do_per_function
        /home/alecop01/toolchain/src/gcc/gcc/passes.cc:1687
0xd66c1b execute_todo
        /home/alecop01/toolchain/src/gcc/gcc/passes.cc:2138
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.

A bisection suggests it started with
r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f :

commit 6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Feb 23 10:15:38 2022

    tree-optimization/101636 - CTOR vectorization ICE

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
@ 2022-03-04 13:34 ` marxin at gcc dot gnu.org
  2022-03-05  5:38 ` pinskia at gcc dot gnu.org
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-03-04 13:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-03-04
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |rguenth at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
            Summary|[12 regression] ICE:        |[12 regression] ICE:
                   |verify_gimple failed in slp |verify_gimple failed in slp
                   |(non-trivial conversion in  |(non-trivial conversion in
                   |‘ssa_name’) with            |‘ssa_name’) with
                   |-msve-vector-bits=128       |-msve-vector-bits=128 since
                   |                            |r12-7359-g6e80c4f1ad9046b0a
                   |                            |7c105660cc7b3dcae0fdb8f

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
  2022-03-04 13:34 ` [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f marxin at gcc dot gnu.org
@ 2022-03-05  5:38 ` pinskia at gcc dot gnu.org
  2022-03-07  8:22 ` rguenth at gcc dot gnu.org
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-03-05  5:38 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.0

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
  2022-03-04 13:34 ` [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f marxin at gcc dot gnu.org
  2022-03-05  5:38 ` pinskia at gcc dot gnu.org
@ 2022-03-07  8:22 ` rguenth at gcc dot gnu.org
  2022-03-07 11:33 ` cvs-commit at gcc dot gnu.org
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-07  8:22 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
             Status|NEW                         |ASSIGNED
           Priority|P3                          |P1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look.

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2022-03-07  8:22 ` rguenth at gcc dot gnu.org
@ 2022-03-07 11:33 ` cvs-commit at gcc dot gnu.org
  2022-03-07 11:34 ` rguenth at gcc dot gnu.org
  2022-03-23 14:08 ` cvs-commit at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-07 11:33 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:5db1d7f143c77543ae7a6c4649af3e611061e0d9

commit r12-7517-g5db1d7f143c77543ae7a6c4649af3e611061e0d9
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Mar 7 11:11:44 2022 +0100

    tree-optimization/104782 - adjust PR101636 fix

    This reverts the reversion of r10-5979 amending the CTOR case
    with a comment as to why the conversion is not necessary there.
    It also adds a testcase (but not for the CTOR case).

    2022-03-07  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/104782
            * tree-vect-slp.cc (vectorize_slp_instance_root_stmt):
            Re-instantiate r10-5979 fix, add comment.

            * gcc.dg/vect/pr104782.c: New testcase.

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2022-03-07 11:33 ` cvs-commit at gcc dot gnu.org
@ 2022-03-07 11:34 ` rguenth at gcc dot gnu.org
  2022-03-23 14:08 ` cvs-commit at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-07 11:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Blocks|                            |101636
             Status|ASSIGNED                    |RESOLVED

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101636
[Bug 101636] [11 Regression] ICE: verify_gimple failed (error: conversion of
register to a different size in 'view_convert_expr')

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f
  2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
                   ` (4 preceding siblings ...)
  2022-03-07 11:34 ` rguenth at gcc dot gnu.org
@ 2022-03-23 14:08 ` cvs-commit at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-23 14:08 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104782

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:893cb28a22f86281ca9ce1e045da7b8840ceb121

commit r11-9689-g893cb28a22f86281ca9ce1e045da7b8840ceb121
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Feb 23 11:15:38 2022 +0100

    tree-optimization/101636 - CTOR vectorization ICE

    The following fixes an ICE when vectorizing the defs of a CTOR
    results in a different vector type than expected.  That can happen
    with AARCH64 SVE and a fixed vector length as noted in r10-5979
    and on x86 with AVX512 mask CTORs and trying to re-vectorize
    using SSE as shown in this bug.

    The fix is simply to reject the vectorization when it didn't
    produce the desired type.

    2022-02-23  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/101636
            PR tree-optimization/104782
            * tree-vect-slp.c (vect_slp_analyze_operations): Make sure
            the CTOR is vectorized with an expected type.

            * c-c++-common/torture/pr101636.c: Likewise.
            * gcc.dg/vect/pr104782.c: New testcase.

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2022-03-23 14:08 UTC | newest]

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2022-03-04 13:29 [Bug tree-optimization/104782] New: [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 acoplan at gcc dot gnu.org
2022-03-04 13:34 ` [Bug tree-optimization/104782] [12 regression] ICE: verify_gimple failed in slp (non-trivial conversion in ‘ssa_name’) with -msve-vector-bits=128 since r12-7359-g6e80c4f1ad9046b0a7c105660cc7b3dcae0fdb8f marxin at gcc dot gnu.org
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2022-03-07  8:22 ` rguenth at gcc dot gnu.org
2022-03-07 11:33 ` cvs-commit at gcc dot gnu.org
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