[gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] [RA]: Fixing i686 bootstrap failure because of pushing the equivalence patch

[gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] [RA]: Fixing i686 bootstrap failure because of pushing the equivalence patch

[Jeff Law]

https://gcc.gnu.org/g:0043a798ef0d2761246d4e372ce510347b3bbe2f

commit 0043a798ef0d2761246d4e372ce510347b3bbe2f
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Fri Oct 27 14:50:40 2023 -0400

    [RA]: Fixing i686 bootstrap failure because of pushing the equivalence patch
    
    GCC with my recent patch improving cost calculation for pseudos with
    equivalence may generate different code with and without debug info
    and as the result i686 bootstrap fails on i686.  The patch fixes this
    bug.
    
    gcc/ChangeLog:
    
            PR rtl-optimization/112107
            * ira-costs.cc: (calculate_equiv_gains): Use NONDEBUG_INSN_P
            instead of INSN_P.
    
    (cherry picked from commit 4d3d2cdb574488223d023b590c3a34ddd93f4dae)

Diff:
---
 gcc/ira-costs.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/ira-costs.cc b/gcc/ira-costs.cc
index 209292a3b4a7..7a3628b624a6 100644
--- a/gcc/ira-costs.cc
+++ b/gcc/ira-costs.cc
@@ -1864,7 +1864,8 @@ calculate_equiv_gains (void)
 	= ira_bb_nodes[bb->index].parent->regno_allocno_map;
       FOR_BB_INSNS (bb, insn)
 	{
-	  if (!INSN_P (insn) || !get_equiv_regno (PATTERN (insn), regno, subreg)
+	  if (!NONDEBUG_INSN_P (insn)
+	      || !get_equiv_regno (PATTERN (insn), regno, subreg)
 	      || !bitmap_bit_p (&equiv_pseudos, regno))
 	    continue;
 	  rtx subst = ira_reg_equiv[regno].memory;