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Delete a copy that looks like a relic from obstack times. 

* varasm.c (copy_constant): Delete function.
	(build_constant_desc): Don't call it.

From-SVN: r211130
This commit is contained in:
Bernd Schmidt 2014-06-02 12:06:11 +00:00 committed by Bernd Schmidt
parent 27e83a44d3
commit 4a1f940f68
2 changed files with 6 additions and 67 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-06-02 Bernd Schmidt <bernds@codesourcery.com>
* varasm.c (copy_constant): Delete function.
(build_constant_desc): Don't call it.
2014-06-02 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
PR target/61154

68
gcc/varasm.c
View File

@ -114,7 +114,6 @@ static hashval_t const_desc_hash (const void *);
static int const_desc_eq (const void *, const void *);
static hashval_t const_hash_1 (const tree);
static int compare_constant (const tree, const tree);
static tree copy_constant (tree);
static void output_constant_def_contents (rtx);
static void output_addressed_constants (tree);
static unsigned HOST_WIDE_INT output_constant (tree, unsigned HOST_WIDE_INT,
@ -3103,71 +3102,6 @@ compare_constant (const tree t1, const tree t2)
gcc_unreachable ();
}
/* Make a copy of the whole tree structure for a constant. This
handles the same types of nodes that compare_constant handles. */
static tree
copy_constant (tree exp)
{
switch (TREE_CODE (exp))
{
case ADDR_EXPR:
/* For ADDR_EXPR, we do not want to copy the decl whose address
is requested. We do want to copy constants though. */
if (CONSTANT_CLASS_P (TREE_OPERAND (exp, 0)))
return build1 (TREE_CODE (exp), TREE_TYPE (exp),
copy_constant (TREE_OPERAND (exp, 0)));
else
return copy_node (exp);
case INTEGER_CST:
case REAL_CST:
case FIXED_CST:
case STRING_CST:
return copy_node (exp);
case COMPLEX_CST:
return build_complex (TREE_TYPE (exp),
copy_constant (TREE_REALPART (exp)),
copy_constant (TREE_IMAGPART (exp)));
case PLUS_EXPR:
case POINTER_PLUS_EXPR:
case MINUS_EXPR:
return build2 (TREE_CODE (exp), TREE_TYPE (exp),
copy_constant (TREE_OPERAND (exp, 0)),
copy_constant (TREE_OPERAND (exp, 1)));
CASE_CONVERT:
case VIEW_CONVERT_EXPR:
return build1 (TREE_CODE (exp), TREE_TYPE (exp),
copy_constant (TREE_OPERAND (exp, 0)));
case VECTOR_CST:
return build_vector (TREE_TYPE (exp), VECTOR_CST_ELTS (exp));
case CONSTRUCTOR:
{
tree copy = copy_node (exp);
vec<constructor_elt, va_gc> *v;
unsigned HOST_WIDE_INT idx;
tree purpose, value;
vec_alloc (v, vec_safe_length (CONSTRUCTOR_ELTS (exp)));
FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (exp), idx, purpose, value)
{
constructor_elt ce = {purpose, copy_constant (value)};
v->quick_push (ce);
}
CONSTRUCTOR_ELTS (copy) = v;
return copy;
}
default:
gcc_unreachable ();
}
}
/* Return the section into which constant EXP should be placed. */
static section *
@ -3208,7 +3142,7 @@ build_constant_desc (tree exp)
tree decl;
desc = ggc_alloc<constant_descriptor_tree> ();
desc->value = copy_constant (exp);
desc->value = exp;
/* Create a string containing the label name, in LABEL. */
labelno = const_labelno++;