[Bug rtl-optimization/34171] [4.3 Regression] Segfault in df_chain_remove_problem with -O3 on alpha

[steven at gcc dot gnu dot org]

------- Comment #14 from steven at gcc dot gnu dot org  2007-11-21 22:30 -------
The patch is semi-wrong.  The call to emit_insn_after_noloc() should already
set the proper BLOCK_FOR_INSN for every insn.  Only doing the
df_insn_change_bb() should be sufficient.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34171