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| author | Richard Guenther <rguenther@suse.de> | 2011-09-05 09:03:08 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-09-05 09:03:08 +0000 |
| commit | 830c740f17a21a901b91de6723d97567bae47770 (patch) | |
| tree | ea45e4b0b22441a465d4935a39d510d54d5b860a /gcc/stor-layout.c | |
| parent | c149e48765862535842cf968dc10667038988606 (diff) | |
| download | gcc-830c740f17a21a901b91de6723d97567bae47770.zip gcc-830c740f17a21a901b91de6723d97567bae47770.tar.gz gcc-830c740f17a21a901b91de6723d97567bae47770.tar.bz2 | |
stor-layout.c (layout_type): Use size_binop for array size calculations.
2011-09-05 Richard Guenther <rguenther@suse.de>
* stor-layout.c (layout_type): Use size_binop for array size
calculations.
c-family/
* c-common.c (complete_array_type): Use ssize_int (-1) instead
of integer_minus_one_node for empty array upper bounds.
From-SVN: r178526
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index f15da0c..359541e 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1959,16 +1959,15 @@ layout_type (tree type) if (integer_zerop (element_size)) length = size_zero_node; - /* The computation should happen in the original type so - that (possible) negative values are handled appropriately. */ + /* The computation should happen in the original signedness so + that (possible) negative values are handled appropriately + when determining overflow. */ else length = fold_convert (sizetype, - fold_build2 (PLUS_EXPR, TREE_TYPE (lb), - build_int_cst (TREE_TYPE (lb), 1), - fold_build2 (MINUS_EXPR, - TREE_TYPE (lb), - ub, lb))); + size_binop (PLUS_EXPR, + build_int_cst (TREE_TYPE (lb), 1), + size_binop (MINUS_EXPR, ub, lb))); TYPE_SIZE (type) = size_binop (MULT_EXPR, element_size, fold_convert (bitsizetype, |