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* fold-const.c (fold_unary): Fix comment.

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From-SVN: r144723
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Eric Botcazou 2009-03-09 12:06:23 +00:00 • committed by Eric Botcazou
parent b958b842c0
commit 1803581d76
2 changed files with 10 additions and 6 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2009-03-09 Eric Botcazou <ebotcazou@adacore.com>
* fold-const.c (fold_unary): Fix comment.
2009-03-07 Jan Hubicka <jh@suse.cz>
PR target/39361

12
gcc/fold-const.c
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@ -8174,12 +8174,12 @@ fold_unary (enum tree_code code, tree type, tree op0)
&& inter_prec >= final_prec)
return fold_build1 (code, type, TREE_OPERAND (op0, 0));
/* Likewise, if the intermediate and final types are either both
float or both integer, we don't need the middle conversion if
it is wider than the final type and doesn't change the signedness
(for integers). Avoid this if the final type is a pointer
since then we sometimes need the inner conversion. Likewise if
the outer has a precision not equal to the size of its mode. */
/* Likewise, if the intermediate and initial types are either both
float or both integer, we don't need the middle conversion if the
former is wider than the latter and doesn't change the signedness
(for integers). Avoid this if the final type is a pointer since
then we sometimes need the middle conversion. Likewise if the
final type has a precision not equal to the size of its mode. */
if (((inter_int && inside_int)
|| (inter_float && inside_float)
|| (inter_vec && inside_vec))