From 5f1fab5819256a0a30779d8d0c2fffc3ed2ee9c2 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Thu, 12 Apr 2012 11:38:47 +0000 Subject: re PR tree-optimization/52943 (likely wrong code bug caused by predictive commoning) 2012-04-12 Richard Guenther PR tree-optimization/52943 * tree-chrec.h (chrec_is_positive): Remove. * tree-scalar-evolution.c (chrec_is_positive): Move ... * tree-data-ref.c (chrec_is_positive): ... here. Make static. Return false for a constant zero instead of negative. (analyze_siv_subscript_cst_affine): Handle zero difference in the initial condition explicitely. * gcc.dg/torture/pr52943.c: New testcase. From-SVN: r186374 --- gcc/tree-chrec.h | 1 - 1 file changed, 1 deletion(-) (limited to 'gcc/tree-chrec.h') diff --git a/gcc/tree-chrec.h b/gcc/tree-chrec.h index bf9bff0f..8367802 100644 --- a/gcc/tree-chrec.h +++ b/gcc/tree-chrec.h @@ -77,7 +77,6 @@ extern void for_each_scev_op (tree *, bool (*) (tree *, void *), void *); /* Observers. */ extern bool eq_evolutions_p (const_tree, const_tree); extern bool is_multivariate_chrec (const_tree); -extern bool chrec_is_positive (tree, bool *); extern bool chrec_contains_symbols (const_tree); extern bool chrec_contains_symbols_defined_in_loop (const_tree, unsigned); extern bool chrec_contains_undetermined (const_tree); -- cgit v1.1