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| author | Joseph Myers <jsm28@cam.ac.uk> | 2001-12-04 22:55:40 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2001-12-04 22:55:40 +0000 |
| commit | db3acfa5476e5af834fee38ad8e1b193a8f018dc (patch) | |
| tree | 47e4fa29a6462438cb5aea8ae3e2c690243e3f52 /gcc/doc/c-tree.texi | |
| parent | d062a680ab959bc09d0f2572ac16e444b5396aa4 (diff) | |
| download | gcc-db3acfa5476e5af834fee38ad8e1b193a8f018dc.zip gcc-db3acfa5476e5af834fee38ad8e1b193a8f018dc.tar.gz gcc-db3acfa5476e5af834fee38ad8e1b193a8f018dc.tar.bz2 | |
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
Diffstat (limited to 'gcc/doc/c-tree.texi')
| -rw-r--r-- | gcc/doc/c-tree.texi | 10 |
1 files changed, 10 insertions, 0 deletions
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 |