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| author | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-07-14 11:28:39 +0000 |
|---|---|---|
| committer | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-07-14 11:28:39 +0000 |
| commit | 1763aab89c33f782d4bc6e117bc4623e2cd13358 (patch) | |
| tree | be64e6c5a2aed9974065eba8e46a55f61fee25eb /gcc/tree-switch-conversion.c | |
| parent | 355d1d37aa3ca1bfc536f4b0156526a33ec45baf (diff) | |
| download | gcc-1763aab89c33f782d4bc6e117bc4623e2cd13358.tar.gz | |
2008-07-14 Martin Jambor <mjambor@suse.cz>
* tree-switch-conversion.c (gen_inbound_check): Make sure the type
in which we generate arithmetics is not a subrange.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@137783 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-switch-conversion.c')
| -rw-r--r-- | gcc/tree-switch-conversion.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-switch-conversion.c b/gcc/tree-switch-conversion.c index 0ce5fc91ead..36c87f9bd51 100644 --- a/gcc/tree-switch-conversion.c +++ b/gcc/tree-switch-conversion.c @@ -622,7 +622,7 @@ gen_inbound_check (tree swtch) tree label_decl3 = create_artificial_label (); tree label1, label2, label3; - tree utype = unsigned_type_for (TREE_TYPE (info.index_expr)); + tree utype; tree tmp_u; tree cast, cast_assign; tree ulb, minus, minus_assign; @@ -638,6 +638,12 @@ gen_inbound_check (tree swtch) gcc_assert (info.default_values); bb0 = bb_for_stmt (swtch); + /* Make sure we do not generate arithmetics in a subrange. */ + if (TREE_TYPE (TREE_TYPE (info.index_expr))) + utype = unsigned_type_for (TREE_TYPE (TREE_TYPE (info.index_expr))); + else + utype = unsigned_type_for (TREE_TYPE (info.index_expr)); + /* (end of) block 0 */ bsi = bsi_for_stmt (info.arr_ref_first); tmp_u = make_rename_temp (utype, "csui"); |