1 From: ja2morri at csclub dot uwaterloo dot ca (James A dot Morrison)
2 Date: Mon, 25 Jul 2005 10:37:52 -0400
6 This fixes PR22550 by simply returning COND in vrp_evaluate_condition if
7 it is an INTEGER_CST. In PR22550 I believe the if (0) comes from
8 merge_seq_blocks which is called after cleanup_control_flow in
9 cleanup_tree_cfg. This patch has been bootstrapped and regtested on ia64-linux
10 with no new regressions, ok for mainline?
15 2005-07-25 James A. Morrison <phython@gcc.gnu.org>
17 PR tree-optimization/22550
18 * tree-vrp.c (vrp_evaluate_condition): Return COND if it is an
21 --- gcc/gcc/tree-vrp.c 20 Jul 2005 20:26:00 -0000 2.42
22 +++ gcc/gcc/tree-vrp.c 25 Jul 2005 14:22:55 -0000
23 @@ -3014,6 +3072,9 @@ compare_names (enum tree_code comp, tree
25 vrp_evaluate_conditional (tree cond, bool use_equiv_p)
27 + if (TREE_CODE (cond) == INTEGER_CST)
30 gcc_assert (TREE_CODE (cond) == SSA_NAME
31 || TREE_CODE_CLASS (TREE_CODE (cond)) == tcc_comparison);