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revert: fold-const.c (extract_muldiv_1): Remove bogus TYPE_IS_SIZETYPE special-casing.

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2011-09-05  Richard Guenther  <rguenther@suse.de>

        Revert
        2011-08-31  Richard Guenther  <rguenther@suse.de>

	* fold-const.c (extract_muldiv_1): Remove bogus TYPE_IS_SIZETYPE
	special-casing.

From-SVN: r178523
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Richard Guenther 2011-09-05 07:32:37 +00:00 committed by Richard Biener
parent 1a94ffae36
commit 5b970a1aaf
2 changed files with 13 additions and 3 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2011-09-04 Richard Guenther <rguenther@suse.de>
Revert
2011-08-31 Richard Guenther <rguenther@suse.de>
* fold-const.c (extract_muldiv_1): Remove bogus TYPE_IS_SIZETYPE
special-casing.
2011-09-04 Iain Sandoe <iains@gcc.gnu.org> 2011-09-04 Iain Sandoe <iains@gcc.gnu.org>
PR debug/49901 PR debug/49901

8
gcc/fold-const.c
View File

@ -5888,9 +5888,11 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type,
multiple of the other, in which case we replace this with either an multiple of the other, in which case we replace this with either an
operation or CODE or TCODE. operation or CODE or TCODE.
If we have an unsigned type, we cannot do this since it will change If we have an unsigned type that is not a sizetype, we cannot do
the result if the original computation overflowed. */ this since it will change the result if the original computation
if (TYPE_OVERFLOW_UNDEFINED (ctype) overflowed. */
if ((TYPE_OVERFLOW_UNDEFINED (ctype)
|| (TREE_CODE (ctype) == INTEGER_TYPE && TYPE_IS_SIZETYPE (ctype)))
&& ((code == MULT_EXPR && tcode == EXACT_DIV_EXPR) && ((code == MULT_EXPR && tcode == EXACT_DIV_EXPR)
|| (tcode == MULT_EXPR || (tcode == MULT_EXPR
&& code != TRUNC_MOD_EXPR && code != CEIL_MOD_EXPR && code != TRUNC_MOD_EXPR && code != CEIL_MOD_EXPR