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fold-const.c (fold_convert): Don't call size_int_type_wide if input overflows.

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* fold-const.c (fold_convert): Don't call size_int_type_wide if
	input overflows.

From-SVN: r40012
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Richard Kenner 2001-02-23 21:05:41 +00:00 committed by Richard Kenner
parent 9b58f73986
commit ac50176d22
2 changed files with 4 additions and 0 deletions
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gcc/ChangeLog
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@ -1,5 +1,8 @@
Fri Feb 23 15:28:39 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* fold-const.c (fold_convert): Don't call size_int_type_wide if
input overflows.
* c-decl.c (set_block): Set NAMES and BLOCKS from BLOCK.
* varasm.c (output_constant): Recompute CODE after lang-specific fn.

1
gcc/fold-const.c
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@ -2022,6 +2022,7 @@ fold_convert (t, arg1)
/* If we are trying to make a sizetype for a small integer, use
size_int to pick up cached types to reduce duplicate nodes. */
if (TREE_CODE (type) == INTEGER_TYPE && TYPE_IS_SIZETYPE (type)
&& !TREE_CONSTANT_OVERFLOW (arg1)
&& compare_tree_int (arg1, 10000) < 0)
return size_int_type_wide (TREE_INT_CST_LOW (arg1), type);