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* [Bug tree-optimization/110117] New: ICE on valid code at -O1 with "": verify_ssa failed
@ 2023-06-04 21:27 zhendong.su at inf dot ethz.ch
  2023-06-04 21:47 ` [Bug tree-optimization/110117] [14 Regression] ICE on valid code at -O1 with "-ftree-vrp -fno-tree-ccp -fno-tree-forwprop": in as_a, at machmode.h:381 pinskia at gcc dot gnu.org
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: zhendong.su at inf dot ethz.ch @ 2023-06-04 21:27 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110117

            Bug ID: 110117
           Summary: ICE on valid code at -O1 with "": verify_ssa failed
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zhendong.su at inf dot ethz.ch
  Target Milestone: ---

It appears to be a recent regression.

Compiler Explorer: https://godbolt.org/z/fsxExbW9P

[584] % gcctk -v
Using built-in specs.
COLLECT_GCC=gcctk
COLLECT_LTO_WRAPPER=/local/home/suz/suz-local/software/local/gcc-trunk/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --disable-bootstrap
--enable-checking=yes --prefix=/local/suz-local/software/local/gcc-trunk
--enable-sanitizers --enable-languages=c,c++ --disable-werror
--disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20230604 (experimental) [master r14-924-gd709841ae0f] (GCC)
[585] %
[585] % gcctk -O1 -ftree-vrp -fno-tree-ccp -fno-tree-forwprop small.c
during RTL pass: expand
small.c: In function ‘main’:
small.c:9:12: internal compiler error: in as_a, at machmode.h:381
    9 |     c = ~h - (-g & f || e);
      |         ~~~^~~~~~~~~~~~~~~
0x7564c4 scalar_int_mode as_a<scalar_int_mode>(machine_mode)
        ../../gcc-trunk/gcc/machmode.h:381
0x758382 scalar_int_mode as_a<scalar_int_mode>(machine_mode)
        ../../gcc-trunk/gcc/tree.h:3669
0x758382 expand_single_bit_test
        ../../gcc-trunk/gcc/expr.cc:12914
0x758382 do_store_flag
        ../../gcc-trunk/gcc/expr.cc:13173
0xbbd259 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:10251
0xbc4ccd expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:10800
0xbc7324 expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
        ../../gcc-trunk/gcc/expr.h:310
0xbc7324 expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**,
rtx_def**, expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:8577
0xbbcd0a expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:10591
0xbc4ccd expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:10800
0xbbd57a expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:8999
0xbbd57a expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
        ../../gcc-trunk/gcc/expr.h:310
0xbbd57a expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:9334
0xbc4ccd expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:10800
0xbc733c expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
        ../../gcc-trunk/gcc/expr.h:310
0xbc733c expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**,
rtx_def**, expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:8578
0xbbcd0a expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        ../../gcc-trunk/gcc/expr.cc:10591
0xbc4ccd expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:10800
0xbc185e expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
        ../../gcc-trunk/gcc/expr.cc:8999
0xbc185e expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
        ../../gcc-trunk/gcc/expr.h:310
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.
[586] %
[586] % cat small.c
int a, b, d;
unsigned c;
int main() {
  char e = -10;
  int f = 1, g = 0;
  if (a) {
    char h = e;
  i:
    c = ~h - (-g & f || e);
    int j = b % c;
    g = j % 9;
    if (c) {
      if (d)
        e = 0;
      while (!g)
        ;
      int k = 0;
    l:
      if (k)
        goto i;
    }
  }
  if (e > -10) {
    if (g)
      f = 0;
    goto l;
  }
  return 0;
}

^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2023-06-15 19:11 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-06-04 21:27 [Bug tree-optimization/110117] New: ICE on valid code at -O1 with "": verify_ssa failed zhendong.su at inf dot ethz.ch
2023-06-04 21:47 ` [Bug tree-optimization/110117] [14 Regression] ICE on valid code at -O1 with "-ftree-vrp -fno-tree-ccp -fno-tree-forwprop": in as_a, at machmode.h:381 pinskia at gcc dot gnu.org
2023-06-04 21:57 ` [Bug middle-end/110117] " pinskia at gcc dot gnu.org
2023-06-04 22:01 ` pinskia at gcc dot gnu.org
2023-06-04 22:55 ` pinskia at gcc dot gnu.org
2023-06-05  0:06 ` pinskia at gcc dot gnu.org
2023-06-05  2:39 ` pinskia at gcc dot gnu.org
2023-06-05  6:04 ` pinskia at gcc dot gnu.org
2023-06-07  3:03 ` cvs-commit at gcc dot gnu.org
2023-06-07  3:03 ` cvs-commit at gcc dot gnu.org
2023-06-07  3:04 ` pinskia at gcc dot gnu.org
2023-06-15 19:11 ` pinskia at gcc dot gnu.org

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