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* [Bug tree-optimization/100398] New: [12 Regression] ICE in gimple_redirect_edge_and_branch, at tree-cfg.c:6082
@ 2021-05-03 16:36 asolokha at gmx dot com
  2021-05-04  6:59 ` [Bug tree-optimization/100398] " rguenth at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: asolokha at gmx dot com @ 2021-05-03 16:36 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100398

            Bug ID: 100398
           Summary: [12 Regression] ICE in
                    gimple_redirect_edge_and_branch, at tree-cfg.c:6082
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: x86_64-unknown-linux-gnu

gcc-12.0.0-alpha20210502 snapshot (g:92f59e47f5a468b96b12b15233a6729904b1a1ee)
ICEs when compiling the following testcase, reduced from
test/CodeGen/asm-goto.c from the clang 11.1.0 test suite, w/ -O1:

int
test5_limit (void)
{
  int addr;

  asm goto ("" : "+r" (addr) : : : t_err);
  return 0;

 t_err:
  return 1;
}

% x86_64-unknown-linux-gnu-gcc-12.0.0 -O1 -c xttz2qcb.c
during GIMPLE pass: veclower2
xttz2qcb.c: In function 'test5_limit':
xttz2qcb.c:2:1: internal compiler error: in gimple_redirect_edge_and_branch, at
tree-cfg.c:6082
    2 | test5_limit (void)
      | ^~~~~~~~~~~
0x6cfa49 gimple_redirect_edge_and_branch
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/tree-cfg.c:6082
0x9701e9 redirect_edge_and_branch(edge_def*, basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/cfghooks.c:373
0xe610a6 remove_forwarder_block
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/tree-cfgcleanup.c:585
0xe610a6 cleanup_tree_cfg_bb
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/tree-cfgcleanup.c:754
0xe61808 cleanup_tree_cfg_noloop
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/tree-cfgcleanup.c:1103
0xe61808 cleanup_tree_cfg(unsigned int)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/tree-cfgcleanup.c:1187
0xd2bf64 execute_function_todo
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/passes.c:2008
0xd2c89b execute_todo
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210502/work/gcc-12-20210502/gcc/passes.c:2096

^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-05-04 10:43 UTC | newest]

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2021-05-03 16:36 [Bug tree-optimization/100398] New: [12 Regression] ICE in gimple_redirect_edge_and_branch, at tree-cfg.c:6082 asolokha at gmx dot com
2021-05-04  6:59 ` [Bug tree-optimization/100398] " rguenth at gcc dot gnu.org
2021-05-04  6:59 ` rguenth at gcc dot gnu.org
2021-05-04 10:32 ` cvs-commit at gcc dot gnu.org
2021-05-04 10:43 ` rguenth at gcc dot gnu.org

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