From db3acfa5476e5af834fee38ad8e1b193a8f018dc Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 4 Dec 2001 22:55:40 +0000 Subject: re PR c/4787 (Different anonymous variables declared but only one allocated when the initialization is the same) * c-common.def (COMPOUND_LITERAL_EXPR): New. * c-common.c (c_expand_expr): Handle COMPOUND_LITERAL_EXPR. (c_staticp): New function. * c-common.h (COMPOUND_LITERAL_EXPR_DECL): New. (c_staticp): Declare. * c-typeck.c (default_function_array_conversion, build_unary_op): Don't handle CONSTRUCTOR specially. (lvalue_p, mark_addressable): Handle COMPOUND_LITERAL_EXPR. * c-decl.c (build_compound_literal): New function. * c-tree.h (build_compound_literal): Declare. * c-parse.in (primary): Use build_compound_literal. * c-lang.c (LANG_HOOKS_STATICP): Define. * objc/objc-lang.c (LANG_HOOKS_STATICP): Likewise. * doc/c-tree.texi: Document COMPOUND_LITERAL_EXPR. * doc/extend.texi: Update documentation of compound literals. Fixes PR c/4787. testsuite: * gcc.c-torture/execute/20000722-1.x, gcc.c-torture/execute/20010123-1.x: Remove. * gcc.c-torture/compile/init-3.c: Don't use a compound literal. * gcc.dg/c90-complit-1.c, gcc.dg/c99-complit-1.c, gcc.dg/c99-complit-2.c: New tests. From-SVN: r47629 --- gcc/doc/c-tree.texi | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'gcc/doc/c-tree.texi') diff --git a/gcc/doc/c-tree.texi b/gcc/doc/c-tree.texi index dd21ae6..3db3d7f 100644 --- a/gcc/doc/c-tree.texi +++ b/gcc/doc/c-tree.texi @@ -1738,6 +1738,7 @@ This macro returns the attributes on the type @var{type}. @tindex COND_EXPR @tindex CALL_EXPR @tindex CONSTRUCTOR +@tindex COMPOUND_LITERAL_EXPR @tindex STMT_EXPR @tindex BIND_EXPR @tindex LOOP_EXPR @@ -2201,6 +2202,15 @@ next available array element. Conceptually, before any initialization is done, the entire area of storage is initialized to zero. +@item COMPOUND_LITERAL_EXPR +@findex COMPOUND_LITERAL_EXPR_DECL +These nodes represent ISO C99 compound literals. The +@code{COMPOUND_LITERAL_EXPR_DECL} is an anonymous @code{VAR_DECL} for +the unnamed object represented by the compound literal; the +@code{DECL_INITIAL} of that @code{VAR_DECL} is a @code{CONSTRUCTOR} +representing the brace-enclosed list of initializers in the compound +literal. + @item SAVE_EXPR A @code{SAVE_EXPR} represents an expression (possibly involving -- cgit v1.1