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