diff options
Diffstat (limited to 'toolchain/gcc/patches/4.8-linaro/003-universal_initializer.patch')
| -rw-r--r-- | toolchain/gcc/patches/4.8-linaro/003-universal_initializer.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.8-linaro/003-universal_initializer.patch b/toolchain/gcc/patches/4.8-linaro/003-universal_initializer.patch new file mode 100644 index 0000000000..1b9a5b3081 --- /dev/null +++ b/toolchain/gcc/patches/4.8-linaro/003-universal_initializer.patch @@ -0,0 +1,94 @@ +--- a/gcc/c/c-typeck.c ++++ b/gcc/c/c-typeck.c +@@ -62,9 +62,9 @@ int in_typeof; + if expr.original_code == SIZEOF_EXPR. */ + tree c_last_sizeof_arg; + +-/* Nonzero if we've already printed a "missing braces around initializer" +- message within this initializer. */ +-static int missing_braces_mentioned; ++/* Nonzero if we might need to print a "missing braces around ++ initializer" message within this initializer. */ ++static int found_missing_braces; + + static int require_constant_value; + static int require_constant_elements; +@@ -6363,6 +6363,9 @@ static int constructor_nonconst; + /* 1 if this constructor is erroneous so far. */ + static int constructor_erroneous; + ++/* 1 if this constructor is the universal zero initializer { 0 }. */ ++static int constructor_zeroinit; ++ + /* Structure for managing pending initializer elements, organized as an + AVL tree. */ + +@@ -6524,7 +6527,7 @@ start_init (tree decl, tree asmspec_tree + constructor_stack = 0; + constructor_range_stack = 0; + +- missing_braces_mentioned = 0; ++ found_missing_braces = 0; + + spelling_base = 0; + spelling_size = 0; +@@ -6619,6 +6622,7 @@ really_start_incremental_init (tree type + constructor_type = type; + constructor_incremental = 1; + constructor_designated = 0; ++ constructor_zeroinit = 1; + designator_depth = 0; + designator_erroneous = 0; + +@@ -6816,11 +6820,8 @@ push_init_level (int implicit, struct ob + set_nonincremental_init (braced_init_obstack); + } + +- if (implicit == 1 && warn_missing_braces && !missing_braces_mentioned) +- { +- missing_braces_mentioned = 1; +- warning_init (OPT_Wmissing_braces, "missing braces around initializer"); +- } ++ if (implicit == 1) ++ found_missing_braces = 1; + + if (TREE_CODE (constructor_type) == RECORD_TYPE + || TREE_CODE (constructor_type) == UNION_TYPE) +@@ -6953,16 +6954,23 @@ pop_init_level (int implicit, struct obs + } + } + ++ if (vec_safe_length (constructor_elements) != 1) ++ constructor_zeroinit = 0; ++ ++ /* Warn when some structs are initialized with direct aggregation. */ ++ if (!implicit && found_missing_braces && warn_missing_braces ++ && !constructor_zeroinit) ++ { ++ warning_init (OPT_Wmissing_braces, ++ "missing braces around initializer"); ++ } ++ + /* Warn when some struct elements are implicitly initialized to zero. */ + if (warn_missing_field_initializers + && constructor_type + && TREE_CODE (constructor_type) == RECORD_TYPE + && constructor_unfilled_fields) + { +- bool constructor_zeroinit = +- (vec_safe_length (constructor_elements) == 1 +- && integer_zerop ((*constructor_elements)[0].value)); +- + /* Do not warn for flexible array members or zero-length arrays. */ + while (constructor_unfilled_fields + && (!DECL_SIZE (constructor_unfilled_fields) +@@ -8077,6 +8085,9 @@ process_init_element (struct c_expr valu + designator_depth = 0; + designator_erroneous = 0; + ++ if (!implicit && value.value && !integer_zerop (value.value)) ++ constructor_zeroinit = 0; ++ + /* Handle superfluous braces around string cst as in + char x[] = {"foo"}; */ + if (string_flag |