reload1.c (eliminate_regs_1): Call gen_rtx_raw_SUBREG for SUBREGs appearing in DEBUG_INSNs.

	* reload1.c (eliminate_regs_1): Call gen_rtx_raw_SUBREG for SUBREGs
	appearing in DEBUG_INSNs.

From-SVN: r246904

gcc/ChangeLog

+2017-04-13  Jeff Law  <law@redhat.com>
+
+	* reload1.c (eliminate_regs_1): Call gen_rtx_raw_SUBREG for SUBREGs
+	appearing in DEBUG_INSNs.
+
 2017-04-13  Martin Liska  <mliska@suse.cz>
 
 	PR gcov-profile/80413

gcc/reload1.c

@@ -2831,6 +2831,8 @@ eliminate_regs_1 (rtx x, machine_mode mem_mode, rtx insn,
 		  || x_size == new_size)
 	      )
 	    return adjust_address_nv (new_rtx, GET_MODE (x), SUBREG_BYTE (x));
+	  else if (insn && GET_CODE (insn) == DEBUG_INSN)
+	    return gen_rtx_raw_SUBREG (GET_MODE (x), new_rtx, SUBREG_BYTE (x));
 	  else
 	    return gen_rtx_SUBREG (GET_MODE (x), new_rtx, SUBREG_BYTE (x));
 	}