From: Richard Stallman <rms@gnu.org>
Date: Mon, 10 May 1993 05:01:08 +0000 (+0000)
Subject: (find_equiv_reg): Set goal_mem_addr_varies
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=54b5ffe9613e1e4e657f5eefdf14ec1ace77f682;p=gcc.git

(find_equiv_reg): Set goal_mem_addr_varies
for all but true constant addresses.

From-SVN: r4406
---

diff --git a/gcc/reload.c b/gcc/reload.c
index 77cc05dea7e..c2555b01fba 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -5176,7 +5176,9 @@ find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
     }
 
   if (goal_mem)
-    goal_mem_addr_varies = rtx_addr_varies_p (goal);
+    /* We must treat frame pointer as varying here,
+       since it can vary--in a nonlocal goto as generated by expand_goto.  */
+    goal_mem_addr_varies = !CONSTANT_ADDRESS_P (XEXP (goal, 0));
 
   /* Now verify that the values of GOAL and VALUE remain unaltered
      until INSN is reached.  */