From 37568125833520ba34d3723db4c888013ae0d725 Mon Sep 17 00:00:00 2001 From: Richard Kenner Date: Sat, 9 Oct 1993 15:19:52 -0400 Subject: [PATCH] (expand_expr, case ABS_EXPR): Don't copy twice into volatile MEM. From-SVN: r5698 --- gcc/expr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/expr.c b/gcc/expr.c index f31e048..91b2d6e 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -5001,6 +5001,7 @@ expand_expr (exp, target, tmode, modifier) target = original_target; temp = gen_label_rtx (); if (target == 0 || ! safe_from_p (target, TREE_OPERAND (exp, 0)) + || (GET_CODE (target) == MEM && MEM_VOLATILE_P (target)) || (GET_CODE (target) == REG && REGNO (target) < FIRST_PSEUDO_REGISTER)) target = gen_reg_rtx (mode); -- 2.7.4