https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90900
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
#1 0x000000000110c18b in copy_rtx (orig=0x7ffff6c51440)
at ../../src/trunk/gcc/rtl.c:376
376 gcc_unreachable ();
(gdb) p debug_rtx (orig)
(note/s 5 0 0 ("lab") NOTE_INSN_DELETED_LABEL 2)
this is expanding debug info for a LABEL_DECL, somehow DECL_RTL is the above
rather than unset which
op0 = DECL_RTL_IF_SET (exp);
/* This decl was probably optimized away. */
if (!op0)
{
if (!VAR_P (exp)
|| DECL_EXTERNAL (exp)
|| !TREE_STATIC (exp)
|| !DECL_NAME (exp)
|| DECL_HARD_REGISTER (exp)
|| DECL_IN_CONSTANT_POOL (exp)
|| mode == VOIDmode)
return NULL;
assumes. Not sure if this is "valid RTL" or if the above code should also
check for INSN_DELETED* notes? At least delete_insn has code to
rewrite existing label insns into those notes.
Testing a patch.
