reg-stack.c (subst_asm_stack_regs): Call replace_reg also for clobbers.

	* reg-stack.c (subst_asm_stack_regs): Call replace_reg also
	for clobbers.  Remove obsolete comment.

From-SVN: r264216

gcc/ChangeLog

 2018-09-11  Uros Bizjak  <ubizjak@gmail.com>
 
+	* reg-stack.c (subst_asm_stack_regs): Call replace_reg also
+	for clobbers.  Remove obsolete comment.
+
+2018-09-11  Uros Bizjak  <ubizjak@gmail.com>
+
 	* config/i386/i386.md (define_attr "type"): Remove mpxmov, mpxmk,
 	mpxchk, mpxld and mpxst types.
 	(define_attr length_immediate): Remove all processing of mpx types.

gcc/reg-stack.c

@@ -2275,13 +2275,7 @@ subst_asm_stack_regs (rtx_insn *insn, stack_ptr regstack)
       int regnum = get_hard_regnum (regstack, clobber_reg[i]);
 
       if (regnum >= 0)
-	{
-	  /* Sigh - clobbers always have QImode.  But replace_reg knows
-	     that these regs can't be MODE_INT and will assert.  Just put
-	     the right reg there without calling replace_reg.  */
-
-	  *clobber_loc[i] = FP_MODE_REG (regnum, DFmode);
-	}
+	replace_reg (clobber_loc[i], regnum);
     }
 
   /* Now remove from REGSTACK any inputs that the asm implicitly popped.  */