i386-features.c (general_scalar_chain::convert_insn): Guard debug work with…

i386-features.c (general_scalar_chain::convert_insn): Guard debug work with MAY_HAVE_DEBUG_BIND_INSNS.

2019-08-29  Richard Biener  <rguenther@suse.de>

	* config/i386/i386-features.c (general_scalar_chain::convert_insn):
	Guard debug work with MAY_HAVE_DEBUG_BIND_INSNS.

From-SVN: r275031

gcc/ChangeLog

 2019-08-29  Richard Biener  <rguenther@suse.de>
 
+	* config/i386/i386-features.c (general_scalar_chain::convert_insn):
+	Guard debug work with MAY_HAVE_DEBUG_BIND_INSNS.
+
+2019-08-29  Richard Biener  <rguenther@suse.de>
+
 	PR bootstrap/91580
 	* config/i386/i386-features.c (general_scalar_chain::convert_insn):
 	Do not emit scalar copies for debug-insns, instead replace

gcc/config/i386/i386-features.c

@@ -893,7 +893,7 @@ general_scalar_chain::convert_insn (rtx_insn *insn)
 	if (use)
 	  convert_reg (insn, DF_REF_REG (ref),
 		       *defs_map.get (regno_reg_rtx [DF_REF_REGNO (ref)]));
-	else
+	else if (MAY_HAVE_DEBUG_BIND_INSNS)
 	  {
 	    /* If we generated a scalar copy we can leave debug-insns
 	       as-is, if not, we have to adjust them.  */