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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, |