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varasm.c (narrowing_initializer_constant_valid_p): Return NULL_TREE if ENDTYPE is not an integer.

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* varasm.c (narrowing_initializer_constant_valid_p): Return
	NULL_TREE if ENDTYPE is not an integer.

From-SVN: r140502
This commit is contained in:
Ian Lance Taylor 2008-09-19 22:30:12 +00:00 committed by Ian Lance Taylor
parent f22b7039d8
commit acafbcde95
2 changed files with 12 additions and 3 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2008-09-19 Ian Lance Taylor <iant@google.com>
* varasm.c (narrowing_initializer_constant_valid_p): Return
NULL_TREE if ENDTYPE is not an integer.
2008-09-19 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/30930

10
gcc/varasm.c
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@ -4064,9 +4064,10 @@ constructor_static_from_elts_p (const_tree ctor)
}
/* A subroutine of initializer_constant_valid_p. VALUE is either a
MINUS_EXPR or a POINTER_PLUS_EXPR, and ENDTYPE is a narrowing
conversion to something smaller than a pointer. This returns
null_pointer_node if the resulting value is an absolute constant
MINUS_EXPR or a POINTER_PLUS_EXPR. This looks for cases of VALUE
which are valid when ENDTYPE is an integer of any size; in
particular, this does not accept a pointer minus a constant. This
returns null_pointer_node if the VALUE is an absolute constant
which can be used to initialize a static variable. Otherwise it
returns NULL. */
@ -4075,6 +4076,9 @@ narrowing_initializer_constant_valid_p (tree value, tree endtype)
{
tree op0, op1;
if (!INTEGRAL_TYPE_P (endtype))
return NULL_TREE;
op0 = TREE_OPERAND (value, 0);
op1 = TREE_OPERAND (value, 1);