[pushed] [RA]: Fixing i686 bootstrap failure because of pushing the equivalence patch

[pushed] [RA]: Fixing i686 bootstrap failure because of pushing the equivalence patch

[Vladimir Makarov]

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The following patch fixes i686 bootstrap failure because of my recent 
patch:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112107


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commit 7361b49d7fa3624cb3f1f825a22607d9d31986e5
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.

diff --git a/gcc/ira-costs.cc b/gcc/ira-costs.cc
index c4086807076..50f80779025 100644
--- a/gcc/ira-costs.cc
+++ b/gcc/ira-costs.cc
@@ -1871,7 +1871,8 @@ 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;