[Bug target/97926] New: ICE in patch_jump_insn, at cfgrtl.c:1298

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97926

            Bug ID: 97926
           Summary: ICE in patch_jump_insn, at cfgrtl.c:1298
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: segher at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux
            Target: ppc64-linux-gnu

The following ICEs:

$ ppc64-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-11.c
-ffinite-math-only -fsanitize=float-cast-overflow -c
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-11.c:
In function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-11.c:10:1:
internal compiler error: in patch_jump_insn, at cfgrtl.c:1298
   10 | }
      | ^
0x5b0036 patch_jump_insn
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgrtl.c:1298
0x725bce redirect_branch_edge
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgrtl.c:1325
0x726ec2 rtl_redirect_edge_and_branch
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgrtl.c:1458
0x715589 redirect_edge_and_branch(edge_def*, basic_block_def*)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfghooks.c:373
0x1193765 try_forward_edges
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgcleanup.c:562
0x1193765 try_optimize_cfg
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgcleanup.c:2960
0x1193765 cleanup_cfg(int)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgcleanup.c:3174
0x713a0d execute
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgexpand.c:6763
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