* bb-reorder.c (find_traces_1_round): Don't connect easy to copy

        successors with multiple predecessors.
        (connect_traces): Try harder to copy traces of length 1.

        * function.h (struct function): Add computed_goto_common_label,
        computed_goto_common_reg.
        * function.c (free_after_compilation): Zap them.
        * stmt.c (expand_computed_goto): Use them to produce one
        indirect branch per function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@62944 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 0 deletions

diff --git a/gcc/function.h b/gcc/function.h
index d92b8152963..5d4258ffe5b 100644
--- a/gcc/function.h
+++ b/gcc/function.h
@@ -268,6 +268,10 @@ struct function GTY(())
      on machines which require execution of the epilogue on all returns.  */
   rtx x_return_label;
 
+  /* Label and register for unswitching computed gotos.  */
+  rtx computed_goto_common_label;
+  rtx computed_goto_common_reg;
+
   /* List (chain of EXPR_LISTs) of pseudo-regs of SAVE_EXPRs.
      So we can mark them all live at the end of the function, if nonopt.  */
   rtx x_save_expr_regs;