From: Jim Wilson <wilson@gcc.gnu.org>
Date: Wed, 16 Dec 1992 19:19:12 +0000 (-0800)
Subject: (get_secondary_mem): Don't save address if it isn't valid.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8d618585fce328e1f7cf818aa8d16dae679161ca;p=gcc.git

(get_secondary_mem): Don't save address if it isn't valid.

From-SVN: r2886
---

diff --git a/gcc/reload.c b/gcc/reload.c
index d440eeb69ec..f9b0a0ce3c3 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -431,7 +431,12 @@ get_secondary_mem (x, mode)
   if (! mem_valid)
     find_reloads_address (mode, NULL_PTR, XEXP (loc, 0), &XEXP (loc, 0), x, 0);
 
-  secondary_memlocs_elim[(int) mode] = loc;
+  /* If the address was not valid to begin with, we can not save it, because
+     there is no guarantee that the reloads needed to make it valid will
+     occur before every use of this address.  */
+
+  else
+    secondary_memlocs_elim[(int) mode] = loc;
 
   return loc;
 }