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authorjsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>2004-07-08 08:45:05 +0000
committerjsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>2004-07-08 08:45:05 +0000
commit4f7f7efd45b15639029ff88aa51f27e284dd381c (patch)
tree69763a66482d42b14599835106ea027f80e7499e /gcc/objc
parent07648566379bd442b9bd7479f77c16ad431c8a82 (diff)
downloadgcc-4f7f7efd45b15639029ff88aa51f27e284dd381c.tar.gz
2004-07-08 Joseph S. Myers <jsm@polyomino.org.uk>
Neil Booth <neil@daikokuya.co.uk> PR c/2511 PR c/3325 * c-decl.c (finish_struct): Ensure bit-fields are given the correct type. * c-common.c (c_common_signed_or_unsigned_type): For C, require the precision to match as well as the mode. * expr.c (reduce_to_bit_field_precision): New function. (expand_expr_real_1): Reduce expressions of bit-field type to proper precision. * langhooks.h (reduce_bit_field_operations): New hook. * langhooks-def.h (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): Define. * c-lang.c, objc/objc-lang.c (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): Define. * objc/objc-act.c (check_ivars): Convert types to bit-field types before checking. * tree.c (build_nonstandard_integer_type): New function. * tree.h (build_nonstandard_integer_type): New prototype. * tree-ssa.c (tree_ssa_useless_type_conversion_1): Don't treat conversions between integer and boolean types as useless. testsuite: * gcc.c-torture/execute/bitfld-1.x: Remove. * gcc.c-torture/execute/bitfld-3.c: New test. * gcc.dg/bitfld-2.c: Remove XFAILs. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84279 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/objc')
-rw-r--r--gcc/objc/objc-act.c10
-rw-r--r--gcc/objc/objc-lang.c2
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c
index 4526e1845ce..308f2aca988 100644
--- a/gcc/objc/objc-act.c
+++ b/gcc/objc/objc-act.c
@@ -4257,6 +4257,16 @@ check_ivars (tree inter, tree imp)
t1 = TREE_TYPE (intdecls); t2 = TREE_TYPE (impdecls);
+ if (TREE_VALUE (TREE_VALUE (rawimpdecls)))
+ {
+ /* t1 is the bit-field type, so t2 must be converted to the
+ bit-field type for comparison as well. */
+ unsigned HOST_WIDE_INT width
+ = tree_low_cst (TREE_VALUE (TREE_VALUE (rawimpdecls)), 1);
+ if (width != TYPE_PRECISION (t2))
+ t2 = build_nonstandard_integer_type (width, TYPE_UNSIGNED (t2));
+ }
+
if (!comptypes (t1, t2)
|| !tree_int_cst_equal (TREE_VALUE (TREE_VALUE (rawintdecls)),
TREE_VALUE (TREE_VALUE (rawimpdecls))))
diff --git a/gcc/objc/objc-lang.c b/gcc/objc/objc-lang.c
index fde6cbd0907..c5d099b63d3 100644
--- a/gcc/objc/objc-lang.c
+++ b/gcc/objc/objc-lang.c
@@ -71,6 +71,8 @@ enum c_language_kind c_language = clk_objc;
#define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
#undef LANG_HOOKS_UNSAFE_FOR_REEVAL
#define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
+#undef LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS
+#define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS true
#undef LANG_HOOKS_STATICP
#define LANG_HOOKS_STATICP c_staticp
#undef LANG_HOOKS_NO_BODY_BLOCKS