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(struct tree_type): New field transparent_union_flag.

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(struct tree_decl): New field transparent_union.
({DECL,TYPE}_TRANSPARENT_UNION): New macros.

From-SVN: r7946
This commit is contained in:
Richard Kenner 1994-08-19 17:32:29 -04:00
parent 17c9628904
commit adb2306127
1 changed files with 13 additions and 2 deletions
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15
gcc/tree.h
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@ -619,6 +619,10 @@ struct tree_block
function when they are created. */
#define TYPE_NEEDS_CONSTRUCTING(NODE) ((NODE)->type.needs_constructing_flag)
/* Indicates that objects of this type (a UNION_TYPE), should be passed
the same way that the first union alternative would be passed. */
#define TYPE_TRANSPARENT_UNION(NODE) ((NODE)->type.transparent_union_flag)
struct tree_type
{
char common[sizeof (struct tree_common)];
@ -637,6 +641,7 @@ struct tree_type
unsigned string_flag : 1;
unsigned no_force_blk_flag : 1;
unsigned needs_constructing_flag : 1;
unsigned transparent_union_flag : 1;
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
unsigned lang_flag_2 : 1;
@ -644,7 +649,7 @@ struct tree_type
unsigned lang_flag_4 : 1;
unsigned lang_flag_5 : 1;
unsigned lang_flag_6 : 1;
/* room for 6 more bits */
/* room for 5 more bits */
unsigned int align;
union tree_node *pointer_to;
@ -928,6 +933,11 @@ struct tree_type
so it should not be output now. */
#define DECL_DEFER_OUTPUT(NODE) ((NODE)->decl.defer_output)
/* Used in PARM_DECLs whose type are unions to indicate that the
argument should be passed in the same way that the first union
alternative would be passed. */
#define DECL_TRANSPARENT_UNION(NODE) ((NODE)->decl.transparent_union)
/* Additional flags for language-specific uses. */
#define DECL_LANG_FLAG_0(NODE) ((NODE)->decl.lang_flag_0)
#define DECL_LANG_FLAG_1(NODE) ((NODE)->decl.lang_flag_1)
@ -963,7 +973,8 @@ struct tree_decl
unsigned in_system_header_flag : 1;
unsigned common_flag : 1;
unsigned defer_output : 1;
/* room for five more */
unsigned transparent_union : 1;
/* room for four more */
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;