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[patch] tree-vrp.c: Remove ssa_name_nonzero_p.
- From: kazu at codesourcery dot com (Kazu Hirata)
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 17 Apr 2009 18:14:00 -0700 (PDT)
- Subject: [patch] tree-vrp.c: Remove ssa_name_nonzero_p.
Hi,
Attached is a patch to remove ssa_name_nonzero_p.
AFAICT, this function has been unused since gimple-tuples-branch was
merged into mainline at Revision 138207.
Bootstrapped on x86_64-pc-linux-gnu. OK to apply?
Kazu Hirata
2009-04-17 Kazu Hirata <kazu@codesourcery.com>
* tree-vrp.c (ssa_name_nonzero_p): Remove.
* tree.h: Remove the prototype for ssa_name_nonzero_p.
Index: gcc/tree-vrp.c
===================================================================
--- gcc/tree-vrp.c (revision 146215)
+++ gcc/tree-vrp.c (working copy)
@@ -1368,28 +1368,6 @@ ssa_name_nonnegative_p (const_tree t)
return false;
}
-/* Return true if T, an SSA_NAME, is known to be nonzero. Return
- false otherwise or if no value range information is available. */
-
-bool
-ssa_name_nonzero_p (const_tree t)
-{
- value_range_t *vr = get_value_range (t);
-
- if (!vr)
- return false;
-
- /* A VR_RANGE which does not include zero is a nonzero value. */
- if (vr->type == VR_RANGE && !symbolic_range_p (vr))
- return ! range_includes_zero_p (vr);
-
- /* A VR_ANTI_RANGE which does include zero is a nonzero value. */
- if (vr->type == VR_ANTI_RANGE && !symbolic_range_p (vr))
- return range_includes_zero_p (vr);
-
- return false;
-}
-
/* If OP has a value range with a single constant value return that,
otherwise return NULL_TREE. This returns OP itself if OP is a
constant. */
Index: gcc/tree.h
===================================================================
--- gcc/tree.h (revision 146215)
+++ gcc/tree.h (working copy)
@@ -5201,7 +5201,6 @@ extern tree tree_mem_ref_addr (tree, tre
extern void copy_mem_ref_info (tree, tree);
/* In tree-vrp.c */
-extern bool ssa_name_nonzero_p (const_tree);
extern bool ssa_name_nonnegative_p (const_tree);
/* In tree-object-size.c. */