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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2011-09-05 07:32:37 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2011-09-05 07:32:37 +0000
commitb649d922c276fdc643ef4a1ea5b0ceb056c5ba45 (patch)
tree4ea70cb77d5227acecb181744e322fa9ada5129b /gcc/fold-const.c
parent7a1d00bc5e85005be0592cdea336c7f14e5f670d (diff)
downloadgcc-b649d922c276fdc643ef4a1ea5b0ceb056c5ba45.tar.gz
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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@178523 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fold-const.c')
-rw-r--r--gcc/fold-const.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 0f4ca5e6222..5807a5533ba 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -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
operation or CODE or TCODE.
- If we have an unsigned type, we cannot do this since it will change
- the result if the original computation overflowed. */
- if (TYPE_OVERFLOW_UNDEFINED (ctype)
+ If we have an unsigned type that is not a sizetype, we cannot do
+ this since it will change the result if the original computation
+ overflowed. */
+ if ((TYPE_OVERFLOW_UNDEFINED (ctype)
+ || (TREE_CODE (ctype) == INTEGER_TYPE && TYPE_IS_SIZETYPE (ctype)))
&& ((code == MULT_EXPR && tcode == EXACT_DIV_EXPR)
|| (tcode == MULT_EXPR
&& code != TRUNC_MOD_EXPR && code != CEIL_MOD_EXPR