From: Richard Kenner <kenner@gcc.gnu.org>
Date: Fri, 8 Oct 1993 15:25:24 +0000 (-0400)
Subject: (expand_expr, case MAX_EXPR): Don't use TARGET directly if it is a
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fc1557074c0b134c2dc91a6879dfdafea976d15f;p=gcc.git

(expand_expr, case MAX_EXPR): Don't use TARGET directly if it is a
volatile MEM.

From-SVN: r5681
---

diff --git a/gcc/expr.c b/gcc/expr.c
index 0d013250464..de2d0e9f738 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -5022,6 +5022,7 @@ expand_expr (exp, target, tmode, modifier)
     case MIN_EXPR:
       target = original_target;
       if (target == 0 || ! safe_from_p (target, TREE_OPERAND (exp, 1))
+	  || (GET_CODE (target) == MEM && MEM_VOLATILE_P (target))
 	  || (GET_CODE (target) == REG
 	      && REGNO (target) < FIRST_PSEUDO_REGISTER))
 	target = gen_reg_rtx (mode);