function.c (thread_prologue_and_epilogue_insns): Don't replace jumps with…

function.c (thread_prologue_and_epilogue_insns): Don't replace jumps with returns unless they are jumps to the fallthru block.

        * function.c (thread_prologue_and_epilogue_insns): Don't replace
        jumps with returns unless they are jumps to the fallthru block.

From-SVN: r31852

gcc/ChangeLog

+2000-02-08  Clinton Popetz  <cpopetz@cygnus.com>
+
+        * function.c (thread_prologue_and_epilogue_insns): Don't replace
+        jumps with returns unless they are jumps to the fallthru block.
+
 Tue Feb  8 07:53:55 2000  Jan Hubicka  <jh@suse.cz>
 
 	* i386.md (addqi3_cc): Fix contraints.

gcc/function.c

@@ -6699,7 +6699,7 @@ thread_prologue_and_epilogue_insns (f)
 		continue;
 
 	      jump = bb->end;
-	      if (GET_CODE (jump) != JUMP_INSN)
+	      if ((GET_CODE (jump) != JUMP_INSN) || JUMP_LABEL (jump) != label)
 		continue;
 
 	      /* If we have an unconditional jump, we can replace that