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decl.c (grokdeclarator): Set typedef_decl for all TYPE_DECLs, remove incorrect comment.

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cp:
	* decl.c (grokdeclarator): Set typedef_decl for all TYPE_DECLs,
	remove incorrect comment. Move #if 0'd code to common path. Use
	IMPLICIT_TYPENAME_P. Simplify & reformat ARRAY_TYPE duplication.
testsuite:
	* g++.dg/abi/bitfield1.C: New test.
	* g++.dg/abi/bitfield2.C: New test.

From-SVN: r49803
This commit is contained in:
Nathan Sidwell 2002-02-16 12:13:41 +00:00 committed by Nathan Sidwell
parent 45356ea287
commit 8d6e459dd0
5 changed files with 92 additions and 15 deletions
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8
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2002-02-15 Nathan Sidwell <nathan@codesourcery.com>
* decl.c (grokdeclarator): Set typedef_decl for all TYPE_DECLs,
remove incorrect comment. Move #if 0'd code to common path. Use
IMPLICIT_TYPENAME_P. Simplify & reformat ARRAY_TYPE duplication.
2002-02-13 Jason Merrill <jason@redhat.com>
* decl.c (builtin_function): Set TREE_THIS_VOLATILE on return fns.
@ -65,7 +71,7 @@
PR c++/109
* decl.c (grokdeclarator): Allow friend declarations from
dependant types.
dependent types.
* decl2.c (handle_class_head): Don't push into template parm contexts.
* pt.c (push_template_decl_real): Template parm contexts are never
being defined.

26
gcc/cp/decl.c
View File

@ -10073,7 +10073,6 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
}
}
}
/* C++ aggregate types. */
else if (TREE_CODE (id) == TYPE_DECL)
{
if (type)
@ -10083,6 +10082,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
{
type = TREE_TYPE (id);
TREE_VALUE (spec) = type;
typedef_decl = id;
}
goto found;
}
@ -10097,10 +10097,6 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
else
{
type = TREE_TYPE (t);
#if 0
/* See the code below that used this. */
decl_attr = DECL_ATTRIBUTES (id);
#endif
typedef_decl = t;
}
}
@ -10111,6 +10107,11 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
found: ;
}
#if 0
/* See the code below that used this. */
if (typedef_decl)
decl_attr = DECL_ATTRIBUTES (typedef_decl);
#endif
typedef_type = type;
/* No type at all: default to `int', and set DEFAULTED_INT
@ -10157,7 +10158,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
type = integer_type_node;
}
if (type && TREE_CODE (type) == TYPENAME_TYPE && TREE_TYPE (type))
if (type && IMPLICIT_TYPENAME_P (type))
{
/* The implicit typename extension is deprecated and will be
removed. Warn about its use now. */
@ -11221,16 +11222,13 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
/* Detect the case of an array type of unspecified size
which came, as such, direct from a typedef name.
We must copy the type, so that each identifier gets
a distinct type, so that each identifier's size can be
controlled separately by its own initializer. */
We must copy the type, so that the array's domain can be
individually set by the object's initializer. */
if (type != 0 && typedef_type != 0
&& TREE_CODE (type) == ARRAY_TYPE && TYPE_DOMAIN (type) == 0
if (type && typedef_type
&& TREE_CODE (type) == ARRAY_TYPE && !TYPE_DOMAIN (type)
&& TYPE_MAIN_VARIANT (type) == TYPE_MAIN_VARIANT (typedef_type))
{
type = build_cplus_array_type (TREE_TYPE (type), TYPE_DOMAIN (type));
}
type = build_cplus_array_type (TREE_TYPE (type), NULL_TREE);
/* Detect where we're using a typedef of function type to declare a
function. last_function_parms will not be set, so we must create

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2002-02-15 Nathan Sidwell <nathan@codesourcery.com>
* g++.dg/abi/bitfield1.C: New test.
* g++.dg/abi/bitfield2.C: New test.
2002-02-15 Richard Sandiford <rsandifo@redhat.com>
* gcc.dg/attr-nest.c: New test.

34
gcc/testsuite/g++.dg/abi/bitfield1.C Normal file
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@ -0,0 +1,34 @@
// { dg-do run }
// { dg-options "-ansi -pedantic-errors -funsigned-bitfields" }
// Copyright (C) 2001 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 15 Dec 2001 <nathan@codesourcery.com>
typedef int Int;
typedef signed int SInt;
typedef unsigned int UInt;
struct A
{
SInt bitS : 1; // signed
UInt bitU : 1; // unsigned
Int bit : 1; // signedness by -f{signed,unsigned}-bitfields
};
int main ()
{
A a;
a.bitS = 1;
a.bitU = 1;
a.bit = 1;
if (a.bitS != -1)
return 1;
if (a.bitU != 1)
return 2;
if (a.bit != 1)
return 3;
return 0;
}

34
gcc/testsuite/g++.dg/abi/bitfield2.C Normal file
View File

@ -0,0 +1,34 @@
// { dg-do run }
// { dg-options "-ansi -pedantic-errors -fsigned-bitfields" }
// Copyright (C) 2001 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 15 Dec 2001 <nathan@codesourcery.com>
typedef int Int;
typedef signed int SInt;
typedef unsigned int UInt;
struct A
{
SInt bitS : 1; // signed
UInt bitU : 1; // unsigned
Int bit : 1; // signedness by -f{signed,unsigned}-bitfields
};
int main ()
{
A a;
a.bitS = 1;
a.bitU = 1;
a.bit = 1;
if (a.bitS != -1)
return 1;
if (a.bitU != 1)
return 2;
if (a.bit != -1)
return 3;
return 0;
}