From: rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 7 Jan 2001 22:50:50 +0000 (+0000)
Subject:         * jump.c (simplejump_p): Recognize any single_set jump
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=75c64e9cb8e56416a94f3c15e192bee19fb25af6;p=thirdparty%2Fgcc.git

    * jump.c (simplejump_p): Recognize any single_set jump
        of the proper form.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38786 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 12d2540dc000..304c7dee3b07 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-01-07  Richard Henderson  <rth@redhat.com>
+
+	* jump.c (simplejump_p): Recognize any single_set jump
+	of the proper form.
+
 2001-01-07  Richard Henderson  <rth@redhat.com>
 
 	* configure.in (slibdir): Accept an --with-slibdir option.
diff --git a/gcc/jump.c b/gcc/jump.c
index 1716f073107e..248c1d6dfd30 100644
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -2161,10 +2161,21 @@ int
 simplejump_p (insn)
      rtx insn;
 {
-  return (GET_CODE (insn) == JUMP_INSN
-	  && GET_CODE (PATTERN (insn)) == SET
-	  && GET_CODE (SET_DEST (PATTERN (insn))) == PC
-	  && GET_CODE (SET_SRC (PATTERN (insn))) == LABEL_REF);
+  rtx set;
+
+  if (GET_CODE (insn) != JUMP_INSN)
+    return 0;
+
+  set = PATTERN (insn);
+  if (GET_CODE (set) != SET)
+    {
+      set = single_set_1 (insn);
+      if (set == NULL_RTX)
+	return 0;
+    }
+
+  return (GET_CODE (SET_DEST (set)) == PC
+	  && GET_CODE (SET_SRC (set)) == LABEL_REF);
 }
 
 /* Return nonzero if INSN is a (possibly) conditional jump