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Re: [PATCH] Fix DCE REG_LIBCALL note moving from noop move insns (PR rtl-optimization/33644)




So that would mean that you don't even need libcall notes to CSE _tls_get_addr calls?

CALL_INSNs are never DCE'd:


static bool
deletable_insn_p (rtx insn, bool fast)
{
  rtx body, x;
  int i;

  if (!NONJUMP_INSN_P (insn))
    return false;


Paolo



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