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fold-const.c (operand_equal_p): Don't check for TREE_CONSTANT_OVERFLOW when comparing constants.

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* fold-const.c (operand_equal_p) <INTEGER_CST, REAL_CST, VECTOR_CST>:
	Don't check for TREE_CONSTANT_OVERFLOW when comparing constants.

From-SVN: r118685
This commit is contained in:
Roger Sayle 2006-11-11 05:00:10 +00:00 committed by Roger Sayle
parent adb43ed451
commit 85914552c7
2 changed files with 8 additions and 11 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2006-11-10 Roger Sayle <roger@eyesopen.com>
* fold-const.c (operand_equal_p) <INTEGER_CST, REAL_CST, VECTOR_CST>:
Don't check for TREE_CONSTANT_OVERFLOW when comparing constants.
2006-11-10 Peter Bergner <bergner@vnet.ibm.com>
* rtl.h (MEM_COPY_ATTRIBUTES): Copy MEM_POINTER.

14
gcc/fold-const.c
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@ -2545,24 +2545,16 @@ operand_equal_p (tree arg0, tree arg1, unsigned int flags)
switch (TREE_CODE (arg0))
{
case INTEGER_CST:
return (! TREE_CONSTANT_OVERFLOW (arg0)
&& ! TREE_CONSTANT_OVERFLOW (arg1)
&& tree_int_cst_equal (arg0, arg1));
return tree_int_cst_equal (arg0, arg1);
case REAL_CST:
return (! TREE_CONSTANT_OVERFLOW (arg0)
&& ! TREE_CONSTANT_OVERFLOW (arg1)
&& REAL_VALUES_IDENTICAL (TREE_REAL_CST (arg0),
TREE_REAL_CST (arg1)));
return REAL_VALUES_IDENTICAL (TREE_REAL_CST (arg0),
TREE_REAL_CST (arg1));
case VECTOR_CST:
{
tree v1, v2;
if (TREE_CONSTANT_OVERFLOW (arg0)
|| TREE_CONSTANT_OVERFLOW (arg1))
return 0;
v1 = TREE_VECTOR_CST_ELTS (arg0);
v2 = TREE_VECTOR_CST_ELTS (arg1);
while (v1 && v2)