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* [Bug tree-optimization/95335] New: [11 Regression] ICE in vectorizable_scan_store at gcc/tree-vect-stmts.c:7164 since r11-615-gdc0c0196340f7ac5
@ 2020-05-26 14:21 marxin at gcc dot gnu.org
  2020-05-26 14:22 ` [Bug tree-optimization/95335] " marxin at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-05-26 14:21 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95335

            Bug ID: 95335
           Summary: [11 Regression] ICE in vectorizable_scan_store at
                    gcc/tree-vect-stmts.c:7164 since
                    r11-615-gdc0c0196340f7ac5
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---

One more for Richi, it's reduced from blender:

$ cat math.i
float *a;
float b;
void
fn1(float p1[][3]) {
  float c, d, e, f;
  f = a[1] * a[1] * d;
  b = a[1] * a[2] * d;
  p1[1][1] = f + c;
  p1[1][2] = b + e;
}

$ gcc -Ofast math.i -c -march=znver1
during GIMPLE pass: slp
math.i: In function 'fn1':
math.i:4:1: internal compiler error: in operator[], at vec.h:867
    4 | fn1(float p1[][3]) {
      | ^~~
0x75c330 vec<tree_node*, va_heap, vl_embed>::operator[](unsigned int)
        /home/marxin/Programming/gcc/gcc/vec.h:867
0x75c330 vec<tree_node*, va_heap, vl_ptr>::operator[](unsigned int)
        /home/marxin/Programming/gcc/gcc/vec.h:1433
0x760a50 vec<tree_node*, va_heap, vl_ptr>::operator[](unsigned int)
        /home/marxin/Programming/gcc/gcc/tree.h:3419
0x760a50 vectorizable_scan_store
        /home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:7164
0x760a50 vectorizable_store
        /home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:7773
0x10a91fe vect_transform_stmt(vec_info*, _stmt_vec_info*,
gimple_stmt_iterator*, _slp_tree*, _slp_instance*)
        /home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:11200
0x10d0448 vect_schedule_slp_instance
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4235
0x10d9482 vect_schedule_slp(vec_info*)
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4359
0x10dc47c vect_slp_bb_region
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:3318
0x10dc47c vect_slp_bb(basic_block_def*)
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:3441
0x10dde2f execute
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1320
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

^ permalink raw reply	[flat|nested] 5+ messages in thread
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2020-05-26 14:21 [Bug tree-optimization/95335] New: [11 Regression] ICE in vectorizable_scan_store at gcc/tree-vect-stmts.c:7164 since r11-615-gdc0c0196340f7ac5 marxin at gcc dot gnu.org
2020-05-26 14:22 ` [Bug tree-optimization/95335] " marxin at gcc dot gnu.org
2020-05-27  7:31 ` rguenth at gcc dot gnu.org
2020-05-27 11:08 ` cvs-commit at gcc dot gnu.org
2020-05-27 11:14 ` rguenth at gcc dot gnu.org

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