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| author | Richard Kenner <kenner@gcc.gnu.org> | 1996-04-14 19:01:38 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1996-04-14 19:01:38 -0400 |
| commit | f500253d32a9051339ea6cb6e53aafa4fffdeb0a (patch) | |
| tree | a2e2acceef2effbca1fa1f23ebeb60b09e26acbf | |
| parent | 4ea62d1a1e6975ff7a79175585b38292ccf7b4c9 (diff) | |
| download | gcc-f500253d32a9051339ea6cb6e53aafa4fffdeb0a.zip gcc-f500253d32a9051339ea6cb6e53aafa4fffdeb0a.tar.gz gcc-f500253d32a9051339ea6cb6e53aafa4fffdeb0a.tar.bz2 | |
(finish_enum): Don't crash if no type can represent all enumeration values.
From-SVN: r11771
| -rw-r--r-- | gcc/c-decl.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 6ad09d9..249992b 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5894,8 +5894,16 @@ finish_enum (enumtype, values, attributes) if (flag_short_enums || TYPE_PACKED (enumtype) || precision > TYPE_PRECISION (integer_type_node)) - /* Use the width of the narrowest normal C type which is wide enough. */ - TYPE_PRECISION (enumtype) = TYPE_PRECISION (type_for_size (precision, 1)); + { + tree narrowest = type_for_size (precision, 1); + if (narrowest == 0) + { + warning ("enumeration values exceed range of largest integer"); + narrowest = long_long_integer_type_node; + } + + TYPE_PRECISION (enumtype) = TYPE_PRECISION (narrowest); + } else TYPE_PRECISION (enumtype) = TYPE_PRECISION (integer_type_node); |