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| author | Richard Guenther <rguenther@suse.de> | 2011-04-11 15:47:30 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-04-11 15:47:30 +0000 |
| commit | e6313a7840a9266bb5777cd29b86885b63b3b24f (patch) | |
| tree | c2b6fa4bc2cb17fae072b77ff6076eb93e0676c1 /gcc/stor-layout.c | |
| parent | e69d7376989727cf50f2b674227b3e60725bb9af (diff) | |
| download | gcc-e6313a7840a9266bb5777cd29b86885b63b3b24f.zip gcc-e6313a7840a9266bb5777cd29b86885b63b3b24f.tar.gz gcc-e6313a7840a9266bb5777cd29b86885b63b3b24f.tar.bz2 | |
stor-layout.c (layout_type): Compute all array index size operations in the original type.
2011-04-11 Richard Guenther <rguenther@suse.de>
* stor-layout.c (layout_type): Compute all array index size operations
in the original type.
(initialize_sizetypes): Add comment.
(set_sizetype): Do not set TREE_TYPE of a TREE_VEC.
c-family/
* c-common.c (complete_array_type): Build a range type of
proper type.
From-SVN: r172261
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index a225dbf..ea0d44d 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1996,15 +1996,16 @@ layout_type (tree type) if (integer_zerop (element_size)) length = size_zero_node; - /* The initial subtraction should happen in the original type so + /* The computation should happen in the original type so that (possible) negative values are handled appropriately. */ else length - = size_binop (PLUS_EXPR, size_one_node, - fold_convert (sizetype, - fold_build2 (MINUS_EXPR, - TREE_TYPE (lb), - ub, lb))); + = 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))); TYPE_SIZE (type) = size_binop (MULT_EXPR, element_size, fold_convert (bitsizetype, @@ -2249,7 +2250,8 @@ initialize_sizetypes (void) TYPE_SIZE_UNIT (t) = build_int_cst (t, GET_MODE_SIZE (SImode)); TYPE_PRECISION (t) = precision; - set_min_and_max_values_for_integral_type (t, precision, true); + set_min_and_max_values_for_integral_type (t, precision, + /*is_unsigned=*/true); sizetype = t; bitsizetype = build_distinct_type_copy (t); @@ -2284,7 +2286,6 @@ set_sizetype (tree type) /* We want to use sizetype's cache, as we will be replacing that type. */ TYPE_CACHED_VALUES (t) = TYPE_CACHED_VALUES (sizetype); TYPE_CACHED_VALUES_P (t) = TYPE_CACHED_VALUES_P (sizetype); - TREE_TYPE (TYPE_CACHED_VALUES (t)) = type; TYPE_UID (t) = TYPE_UID (sizetype); TYPE_IS_SIZETYPE (t) = 1; |