From: Bernd Schmidt <bernds@redhat.com>
Date: Thu, 15 Mar 2001 12:59:26 +0000 (+0000)
Subject: Fix hashing of REG/MEM values.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a4f4333ade0da6c33abad06e0d60e30f62fc1ce9;p=gcc.git

Fix hashing of REG/MEM values.

From-SVN: r40499
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b1f390ccfba..2e833b76406 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2001-03-15  Bernd Schmidt  <bernds@redhat.com>
 
+	* cselib.c (hash_rtx): For REG and MEM, just use value of expression
+	without adding in rtx code and mode.
+
 	* config/ia64/ia64.c (maybe_rotate): New function, broken out of
 	ia64_sched_reorder.
 	(ia64_sched_reorder): Call maybe_rotate; also rotate after
diff --git a/gcc/cselib.c b/gcc/cselib.c
index 10f17e21669..c0aa0e659bb 100644
--- a/gcc/cselib.c
+++ b/gcc/cselib.c
@@ -579,8 +579,7 @@ hash_rtx (x, mode, create)
       if (! e)
 	return 0;
 
-      hash += e->value;
-      return hash ? hash : (unsigned int) MEM;
+      return e->value;
 
     case CONST_INT:
       hash += ((unsigned) CONST_INT << 7) + (unsigned) mode + INTVAL (x);