From: m.hayes <m.hayes@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 7 Jan 2001 09:59:09 +0000 (+0000)
Subject: 	* loop.c (emit_iv_add_mult): Use single_set to examine new insn.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=15dfdac8ffacf9fc16c845df076053f40d98e491;p=thirdparty%2Fgcc.git

	* loop.c (emit_iv_add_mult): Use single_set to examine new insn.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38764 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7a1df4cc9e0d..47a4b8268386 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2001-01-07  Michael Hayes  <mhayes@redhat.com>
+
+	* loop.c (emit_iv_add_mult): Use single_set to examine new insn.
+
 2001-01-07  Richard Henderson  <rth@redhat.com>
 
 	* sched-rgn.c (is_cfg_nonregular): Fix thinko's last change.
diff --git a/gcc/loop.c b/gcc/loop.c
index 51ca938c7360..ce522a03bfc1 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -6904,9 +6904,12 @@ emit_iv_add_mult (b, m, a, reg, insert_before)
 	    record_base_value (REGNO (SET_DEST (set)), SET_SRC (set), 0);
 	}
     }
-  else if (GET_CODE (seq) == SET
-	   && GET_CODE (SET_DEST (seq)) == REG)
-    record_base_value (REGNO (SET_DEST (seq)), SET_SRC (seq), 0);
+  else 
+    {
+      rtx set = single_set (seq);
+      if (set && GET_CODE (SET_DEST (set)) == REG)
+	record_base_value (REGNO (SET_DEST (set)), SET_SRC (set), 0);
+    }
 }
 
 /* Similar to emit_iv_add_mult, but compute cost rather than emitting