From: Richard Henderson <rth@cygnus.com>
Date: Thu, 27 Apr 2000 06:47:16 +0000 (-0700)
Subject: flow.c (tidy_fallthru_edge): Don't delete the jump when it's a still-valid conditiona... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=56aba4a8b5221971ccfb59f144d8666905512179;p=gcc.git

flow.c (tidy_fallthru_edge): Don't delete the jump when it's a still-valid conditional jump.

        * flow.c (tidy_fallthru_edge): Don't delete the jump when it's
        a still-valid conditional jump.

From-SVN: r33468
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1d134c0ee30..0dab3e3827e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2000-04-26  Richard Henderson  <rth@cygnus.com>
+
+	* flow.c (tidy_fallthru_edge): Don't delete the jump when it's
+	a still-valid conditional jump.
+
 2000-04-26  Richard Henderson  <rth@cygnus.com>
 
 	* jump.c (invert_jump): Always invert REG_BR_PROB.  Do it correctly.
diff --git a/gcc/flow.c b/gcc/flow.c
index 23402d39120..39449d31c9f 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -2407,7 +2407,9 @@ tidy_fallthru_edge (e, b, c)
      If block B consisted only of this single jump, turn it into a deleted
      note.  */
   q = b->end;
-  if (GET_CODE (q) == JUMP_INSN)
+  if (GET_CODE (q) == JUMP_INSN
+      && (simplejump_p (q)
+	  || (b->succ == e && e->succ_next == NULL)))
     {
 #ifdef HAVE_cc0
       /* If this was a conditional jump, we need to also delete