From 4da2eb6b9026e71f167204bc7ced622f44c70a1e Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Tue, 22 Apr 2003 16:17:46 -0700
Subject: re PR middle-end/8866 (Bug in switch statement code generation --
 missing label)

        PR 8866
        * rtl.h (MEM_NOTRAP_P): New.
        (MEM_COPY_ATTRIBUTES): Copy it.
        * rtlanal.c (may_trap_p): Check it.
        * expr.c (do_tablejump): Set it.
        * doc/rtl.texi (Flags): Document it.

        * cfgrtl.c (try_redirect_by_replacing_jump): Revert last three changes.

From-SVN: r65967
---
 gcc/expr.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'gcc/expr.c')

diff --git a/gcc/expr.c b/gcc/expr.c
index f87f9c9..9176c30 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -10272,6 +10272,7 @@ do_tablejump (index, mode, range, table_label, default_label)
   temp = gen_reg_rtx (CASE_VECTOR_MODE);
   vector = gen_rtx_MEM (CASE_VECTOR_MODE, index);
   RTX_UNCHANGING_P (vector) = 1;
+  MEM_NOTRAP_P (vector) = 1;
   convert_move (temp, vector, 0);
 
   emit_jump_insn (gen_tablejump (temp, table_label));
-- 
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