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* [Bug tree-optimization/115149] New: ICE on valid code at -O3 with "-fno-inline -fno-tree-vrp -fno-ipa-sra -fno-tree-dce -fno-tree-ch" on x86_64-linux-gnu: verify_ssa failed
@ 2024-05-18 15:38 zhendong.su at inf dot ethz.ch
  2024-05-18 19:17 ` [Bug tree-optimization/115149] [15 Regression] " pinskia at gcc dot gnu.org
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: zhendong.su at inf dot ethz.ch @ 2024-05-18 15:38 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115149

            Bug ID: 115149
           Summary: ICE on valid code at -O3 with "-fno-inline
                    -fno-tree-vrp -fno-ipa-sra -fno-tree-dce -fno-tree-ch"
                    on x86_64-linux-gnu: 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: ---

This appears to be a recent regression as it doesn't reproduce with 14.1 and
earlier.

Compiler Explorer: https://godbolt.org/z/xGfY5vofe

[729] % gcctk -v
Using built-in specs.
COLLECT_GCC=gcctk
COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/15.0.0/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 --enable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 20240516 (experimental) (GCC) 
[730] % 
[730] % gcctk -O3 -fno-inline -fno-tree-vrp -fno-ipa-sra -fno-tree-dce
-fno-tree-ch small.c
small.c: In function ‘main’:
small.c:4:5: error: stmt with wrong VUSE
    4 | int main() {
      |     ^~~~
# VUSE <.MEM_16(D)>
c_lsm.18_25 = c;
expected .MEM_17
during GIMPLE pass: sink
small.c:4:5: internal compiler error: verify_ssa failed
0x140abbe verify_ssa(bool, bool)
        ../../gcc-trunk/gcc/tree-ssa.cc:1203
0x102ded5 execute_function_todo
        ../../gcc-trunk/gcc/passes.cc:2096
0x102e73e execute_todo
        ../../gcc-trunk/gcc/passes.cc:2143
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.
[731] % 
[731] % cat small.c
int a, c, e, f, g, h[1], i;
static int j(int b) { return 0; }
static void k(int d) {}
int main() {
  if (h[0])
    while (1) {
      k(f && j(i && (h[g] = e)));
      while (a)
        c ^= 1;
    }
  return 0;
}

^ permalink raw reply	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2024-05-29  6:32 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-05-18 15:38 [Bug tree-optimization/115149] New: ICE on valid code at -O3 with "-fno-inline -fno-tree-vrp -fno-ipa-sra -fno-tree-dce -fno-tree-ch" on x86_64-linux-gnu: verify_ssa failed zhendong.su at inf dot ethz.ch
2024-05-18 19:17 ` [Bug tree-optimization/115149] [15 Regression] " pinskia at gcc dot gnu.org
2024-05-21  3:05 ` pinskia at gcc dot gnu.org
2024-05-21  6:35 ` rguenth at gcc dot gnu.org
2024-05-21  8:52 ` cvs-commit at gcc dot gnu.org
2024-05-21  8:53 ` [Bug tree-optimization/115149] [14 " rguenth at gcc dot gnu.org
2024-05-21  8:53 ` rguenth at gcc dot gnu.org
2024-05-29  6:29 ` cvs-commit at gcc dot gnu.org
2024-05-29  6:32 ` rguenth at gcc dot gnu.org

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