Ping: [PATCH][C++] Pass type uses through the verify_type_context hook
Richard Sandiford
richard.sandiford@arm.com
Fri Dec 6 14:26:00 GMT 2019
Jason Merrill <jason@redhat.com> writes:
> On 12/5/19 1:21 PM, Richard Sandiford wrote:
>> + else if (!verify_type_context (input_location, TCTX_EXCEPTIONS, type))
>> + return false;
>> +
>> + else if (TYPE_REF_P (type)
>> + && !verify_type_context (input_location, TCTX_EXCEPTIONS,
>> + TREE_TYPE (type)))
>
> You could use the non_reference function to combine these.
Thanks. This patch fixes that and follows Marek's suggestion of using
location_of in check_array_initializer. (I wondered whether to check
for decl == error_mark_node as well, but that can't currently happen.)
Tested on aarch64-linux-gnu and x86_64-linux-gnu. OK to install?
Richard
2019-12-06 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* target.h (TCTX_ALLOCATION, TCTX_DEALLOCATION, TCTX_EXCEPTIONS)
(TCTX_CAPTURE_BY_COPY): New type_context_kinds.
* config/aarch64/aarch64-sve-builtins.cc (verify_type_context):
Handle them.
gcc/cp/
* decl.c (start_decl_1): Use verify_type_context to check whether
the target allows variables of a particular type to have static
or thread-local storage duration.
(check_array_initializer): Use verify_type_context to check whether
the target allows a particular type to be used as an array element.
(create_array_type_for_decl): Likewise.
(cp_finish_decl): Use verify_type_context to check whether
the target allows static member variables of a particular type.
(grokdeclarator): Likewise. Also use verify_type_context to check
whether the target allows non-static member variables of a particular
type.
* except.c: Include target.h.
(is_admissible_throw_operand_or_catch_parameter): Use
verify_type_context to check whether the target allows particular
types to be thrown and caught.
* typeck2.c (add_exception_specifier): Likewise.
* init.c (build_new_1): Use verify_type_context to check whether
the target allows particular types to be dynamically allocated.
(build_vec_delete_1, build_delete): Use verify_type_context to check
whether the target allows particular types to be deleted.
* lambda.c (add_capture): Use verify_type_context to check
whether the target allows particular types to be captured by copy.
* pt.c: Include target.h.
(instantiate_class_template_1): Use verify_type_context to check
whether the target allows non-static member variables of a particular
type.
* typeck.c (cxx_alignof_expr): Use verify_type_context to check
whether the target allows the alignment of a particular type
to be measured.
(pointer_diff, cp_build_unary_op): Use verify_type_context to check
whether the target allows arithmetic involving pointers to particular
types.
gcc/testsuite/
* g++.dg/ext/sve-sizeless-1.C: New test.
* g++.dg/ext/sve-sizeless-2.C: Likewise.
Index: gcc/target.h
===================================================================
--- gcc/target.h 2019-12-04 13:13:48.000000000 +0000
+++ gcc/target.h 2019-12-06 14:11:28.233552680 +0000
@@ -249,7 +249,19 @@ enum type_context_kind {
/* Adding to or subtracting from a pointer to T, or computing the
difference between two pointers when one of them is a pointer to T. */
- TCTX_POINTER_ARITH
+ TCTX_POINTER_ARITH,
+
+ /* Dynamically allocating objects of type T. */
+ TCTX_ALLOCATION,
+
+ /* Dynamically deallocating objects of type T. */
+ TCTX_DEALLOCATION,
+
+ /* Throwing or catching an object of type T. */
+ TCTX_EXCEPTIONS,
+
+ /* Capturing objects of type T by value in a closure. */
+ TCTX_CAPTURE_BY_COPY
};
extern bool verify_type_context (location_t, type_context_kind, const_tree,
Index: gcc/config/aarch64/aarch64-sve-builtins.cc
===================================================================
--- gcc/config/aarch64/aarch64-sve-builtins.cc 2019-12-04 13:13:48.000000000 +0000
+++ gcc/config/aarch64/aarch64-sve-builtins.cc 2019-12-06 14:11:28.217552787 +0000
@@ -3352,6 +3352,26 @@ verify_type_context (location_t loc, typ
if (!silent_p)
error_at (loc, "array elements cannot have SVE type %qT", type);
return false;
+
+ case TCTX_ALLOCATION:
+ if (!silent_p)
+ error_at (loc, "cannot allocate objects with SVE type %qT", type);
+ return false;
+
+ case TCTX_DEALLOCATION:
+ if (!silent_p)
+ error_at (loc, "cannot delete objects with SVE type %qT", type);
+ return false;
+
+ case TCTX_EXCEPTIONS:
+ if (!silent_p)
+ error_at (loc, "cannot throw or catch SVE type %qT", type);
+ return false;
+
+ case TCTX_CAPTURE_BY_COPY:
+ if (!silent_p)
+ error_at (loc, "capture by copy of SVE type %qT", type);
+ return false;
}
gcc_unreachable ();
}
Index: gcc/cp/decl.c
===================================================================
--- gcc/cp/decl.c 2019-12-06 10:31:11.638430940 +0000
+++ gcc/cp/decl.c 2019-12-06 14:11:28.221552762 +0000
@@ -5470,6 +5470,13 @@ start_decl_1 (tree decl, bool initialize
cp_apply_type_quals_to_decl (cp_type_quals (type), decl);
}
+ if (is_global_var (decl))
+ {
+ type_context_kind context = (DECL_THREAD_LOCAL_P (decl)
+ ? TCTX_THREAD_STORAGE
+ : TCTX_STATIC_STORAGE);
+ verify_type_context (input_location, context, TREE_TYPE (decl));
+ }
if (initialized)
/* Is it valid for this decl to have an initializer at all? */
{
@@ -6535,6 +6542,11 @@ check_array_initializer (tree decl, tree
error ("elements of array %q#T have incomplete type", type);
return true;
}
+
+ location_t loc = (decl ? location_of (decl) : input_location);
+ if (!verify_type_context (loc, TCTX_ARRAY_ELEMENT, element_type))
+ return true;
+
/* A compound literal can't have variable size. */
if (init && !decl
&& ((COMPLETE_TYPE_P (type) && !TREE_CONSTANT (TYPE_SIZE (type)))
@@ -7482,6 +7494,8 @@ cp_finish_decl (tree decl, tree init, bo
if (VAR_P (decl)
&& DECL_CLASS_SCOPE_P (decl)
+ && verify_type_context (DECL_SOURCE_LOCATION (decl),
+ TCTX_STATIC_STORAGE, type)
&& DECL_INITIALIZED_IN_CLASS_P (decl))
check_static_variable_definition (decl, type);
@@ -10550,6 +10564,10 @@ create_array_type_for_decl (tree name, t
break;
}
+ if (!verify_type_context (name ? loc : input_location,
+ TCTX_ARRAY_ELEMENT, type))
+ return error_mark_node;
+
/* [dcl.array]
The constant expressions that specify the bounds of the arrays
@@ -13254,6 +13272,14 @@ grokdeclarator (const cp_declarator *dec
decl = NULL_TREE;
}
}
+ else if (!verify_type_context (input_location,
+ staticp
+ ? TCTX_STATIC_STORAGE
+ : TCTX_FIELD, type))
+ {
+ type = error_mark_node;
+ decl = NULL_TREE;
+ }
else
{
if (friendp)
Index: gcc/cp/except.c
===================================================================
--- gcc/cp/except.c 2019-12-04 13:13:48.000000000 +0000
+++ gcc/cp/except.c 2019-12-06 14:11:28.221552762 +0000
@@ -29,6 +29,7 @@ the Free Software Foundation; either ver
#include "trans-mem.h"
#include "attribs.h"
#include "tree-iterator.h"
+#include "target.h"
static void push_eh_cleanup (tree);
static tree prepare_eh_type (tree);
@@ -927,6 +928,10 @@ is_admissible_throw_operand_or_catch_par
if (!complete_ptr_ref_or_void_ptr_p (type, expr))
return false;
+ tree nonref_type = non_reference (type);
+ if (!verify_type_context (input_location, TCTX_EXCEPTIONS, nonref_type))
+ return false;
+
/* 10.4/3 An abstract class shall not be used as a parameter type,
as a function return type or as type of an explicit
conversion. */
Index: gcc/cp/typeck2.c
===================================================================
--- gcc/cp/typeck2.c 2019-12-05 14:20:16.965063368 +0000
+++ gcc/cp/typeck2.c 2019-12-06 14:11:28.233552680 +0000
@@ -33,6 +33,7 @@ the Free Software Foundation; either ver
#include "varasm.h"
#include "intl.h"
#include "gcc-rich-location.h"
+#include "target.h"
static tree
process_init_constructor (tree type, tree init, int nested, int flags,
@@ -2401,6 +2402,9 @@ add_exception_specifier (tree list, tree
ok = true;
else if (processing_template_decl)
ok = true;
+ else if (!verify_type_context (input_location, TCTX_EXCEPTIONS, core,
+ !(complain & tf_error)))
+ return error_mark_node;
else
{
ok = true;
Index: gcc/cp/init.c
===================================================================
--- gcc/cp/init.c 2019-12-04 13:13:48.000000000 +0000
+++ gcc/cp/init.c 2019-12-06 14:11:28.221552762 +0000
@@ -3058,6 +3058,10 @@ build_new_1 (vec<tree, va_gc> **placemen
complain);
}
+ if (!verify_type_context (input_location, TCTX_ALLOCATION, elt_type,
+ !(complain & tf_error)))
+ return error_mark_node;
+
if (variably_modified_type_p (elt_type, NULL_TREE) && (complain & tf_error))
{
error ("variably modified type not allowed in new-expression");
@@ -3942,6 +3946,10 @@ build_vec_delete_1 (tree base, tree maxi
if (base == error_mark_node || maxindex == error_mark_node)
return error_mark_node;
+ if (!verify_type_context (input_location, TCTX_DEALLOCATION, type,
+ !(complain & tf_error)))
+ return error_mark_node;
+
if (!COMPLETE_TYPE_P (type))
{
if (complain & tf_warning)
@@ -4827,6 +4835,11 @@ build_delete (tree otype, tree addr, spe
if (!VOID_TYPE_P (type))
{
complete_type (type);
+ if (deleting
+ && !verify_type_context (input_location, TCTX_DEALLOCATION, type,
+ !(complain & tf_error)))
+ return error_mark_node;
+
if (!COMPLETE_TYPE_P (type))
{
if (complain & tf_warning)
Index: gcc/cp/lambda.c
===================================================================
--- gcc/cp/lambda.c 2019-12-04 13:13:48.000000000 +0000
+++ gcc/cp/lambda.c 2019-12-06 14:11:28.225552732 +0000
@@ -30,6 +30,7 @@
#include "tree-iterator.h"
#include "toplev.h"
#include "gimplify.h"
+#include "target.h"
/* Constructor for a lambda expression. */
@@ -579,6 +580,9 @@ add_capture (tree lambda, tree id, tree
cxx_incomplete_type_inform (type);
return error_mark_node;
}
+ else if (!verify_type_context (input_location,
+ TCTX_CAPTURE_BY_COPY, type))
+ return error_mark_node;
}
}
Index: gcc/cp/pt.c
===================================================================
--- gcc/cp/pt.c 2019-12-05 14:20:16.969063342 +0000
+++ gcc/cp/pt.c 2019-12-06 14:11:28.229552706 +0000
@@ -42,6 +42,7 @@ the Free Software Foundation; either ver
#include "gimplify.h"
#include "gcc-rich-location.h"
#include "selftest.h"
+#include "target.h"
/* The type of functions taking a tree, and some additional data, and
returning an int. */
@@ -11815,6 +11816,9 @@ instantiate_class_template_1 (tree type)
error ("flexible array member %qD in union", r);
TREE_TYPE (r) = error_mark_node;
}
+ else if (!verify_type_context (input_location,
+ TCTX_FIELD, rtype))
+ TREE_TYPE (r) = error_mark_node;
}
/* If it is a TYPE_DECL for a class-scoped ENUMERAL_TYPE,
Index: gcc/cp/typeck.c
===================================================================
--- gcc/cp/typeck.c 2019-12-04 13:13:48.000000000 +0000
+++ gcc/cp/typeck.c 2019-12-06 14:11:28.229552706 +0000
@@ -1824,7 +1824,14 @@ cxx_alignof_expr (tree e, tsubst_flags_t
e = mark_type_use (e);
- if (VAR_P (e))
+ if (!verify_type_context (input_location, TCTX_ALIGNOF, TREE_TYPE (e),
+ !(complain & tf_error)))
+ {
+ if (!(complain & tf_error))
+ return error_mark_node;
+ t = size_one_node;
+ }
+ else if (VAR_P (e))
t = size_int (DECL_ALIGN_UNIT (e));
else if (bitfield_p (e))
{
@@ -5778,6 +5785,13 @@ pointer_diff (location_t loc, tree op0,
else
return error_mark_node;
}
+ else if (!verify_type_context (loc, TCTX_POINTER_ARITH,
+ TREE_TYPE (TREE_TYPE (op0)),
+ !(complain & tf_error))
+ || !verify_type_context (loc, TCTX_POINTER_ARITH,
+ TREE_TYPE (TREE_TYPE (op1)),
+ !(complain & tf_error)))
+ return error_mark_node;
/* Determine integer type result of the subtraction. This will usually
be the same as the result type (ptrdiff_t), but may need to be a wider
@@ -6572,6 +6586,10 @@ cp_build_unary_op (enum tree_code code,
else
return error_mark_node;
}
+ else if (!verify_type_context (location, TCTX_POINTER_ARITH,
+ TREE_TYPE (argtype),
+ !(complain & tf_error)))
+ return error_mark_node;
inc = cxx_sizeof_nowarn (TREE_TYPE (argtype));
}
Index: gcc/testsuite/g++.dg/ext/sve-sizeless-1.C
===================================================================
--- /dev/null 2019-09-17 11:41:18.176664108 +0100
+++ gcc/testsuite/g++.dg/ext/sve-sizeless-1.C 2019-12-06 14:11:28.233552680 +0000
@@ -0,0 +1,420 @@
+// { dg-do compile { target aarch64*-*-* } }
+// { dg-options "-Wclass-memaccess" }
+
+#pragma GCC target "+sve"
+
+typedef __SIZE_TYPE__ size_t;
+inline void *operator new (size_t, void *__p) throw() { return __p; }
+
+#include <arm_sve.h>
+
+typedef signed char int8x32_t __attribute__((__vector_size__ (32)));
+
+// Sizeless objects with global scope.
+
+svint8_t global_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+static svint8_t local_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+extern svint8_t extern_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+__thread svint8_t tls_sve_sc; // { dg-error {variables of type 'svint8_t' cannot have thread-local storage duration} }
+
+// Sizeless arrays.
+
+typedef svint8_t array_type[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+extern svint8_t extern_array[]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+// Sizeless member variables.
+
+struct struct1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+union union1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+#if __cplusplus >= 201103L
+struct static_sve_sc {
+ static svint8_t sve_sc1 = {}; // { dg-error {SVE type 'svint8_t' does not have a fixed size} "" { target c++11 } }
+};
+#endif
+
+// Sizeless member variables in templated structures.
+
+template<typename T>
+struct templated_struct1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+template<typename T>
+struct templated_struct2 {
+ T a; // { dg-error {member variables cannot have SVE type '(svint8_t|__SVInt8_t)'} }
+};
+
+template class templated_struct2<svint8_t>;
+
+template<typename T>
+struct templated_struct3 {
+ T &a;
+};
+
+template class templated_struct3<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<typename T>
+struct templated_struct4 {
+ static T a; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+ static T b = {}; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+};
+
+template class templated_struct4<svint8_t>;
+#endif
+
+template<typename T> struct templated_struct5 : T {}; // { dg-error {base type '[^']*' fails to be a struct or class type} }
+template class templated_struct5<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<int N> using typedef_sizeless1 = svint8_t;
+template<int N> using typedef_sizeless1 = svint8_t; // { dg-error {redefinition of 'template<int N> using typedef_sizeless1 = svint8_t'} "" { target c++11 } }
+template<typename T> using array = T[2];
+#endif
+
+// Pointers to sizeless types.
+
+svint8_t *global_sve_sc_ptr;
+
+// Sizeless arguments and return values.
+
+void ext_consume_sve_sc (svint8_t);
+void ext_consume_const_int_ref (const int &);
+void ext_consume_varargs (int, ...);
+svint8_t ext_produce_sve_sc ();
+
+// Sizeless types in throw specifications.
+
+#if __cplusplus < 201103L
+void thrower1 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower2 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower3 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Main tests for statements and expressions.
+
+void
+statements (int n)
+{
+ // Local declarations.
+
+ svint8_t sve_sc1, sve_sc2;
+ volatile svint8_t volatile_sve_sc1;
+ int8x32_t gnu_sc1;
+ svint16_t sve_sh1;
+
+ // Layout queries.
+
+ sizeof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ sizeof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ sizeof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ __alignof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+ __alignof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+ __alignof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+
+#if __cplusplus >= 201103L
+ array<svint8_t> foo = {}; // { dg-error {array elements cannot have SVE type '(svint8_t|__SVInt8_t)'} "" { target c++11 } }
+#endif
+
+ // Initialization.
+
+ int init_int1 = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+ int init_int2 = { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+ svint8_t init_sve_sc1 (sve_sc1);
+ svint8_t init_sve_sc2 (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ svint8_t init_sve_sc3 = sve_sc1;
+ svint8_t init_sve_sc4 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ svint8_t init_sve_sc5 = {};
+ svint8_t init_sve_sc6 = { sve_sc1 };
+ svint8_t init_sve_sc7 = { sve_sh1 }; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+ // Constructor calls.
+
+ (0, svint8_t ());
+
+ // Lvalue reference binding
+
+ svint8_t &lvalue_ref_sve_sc1 = sve_sc1;
+ svint8_t &lvalue_ref_sve_sc2 = ext_produce_sve_sc (); // { dg-error {cannot bind non-const lvalue reference of type 'svint8_t&' to an rvalue of type 'svint8_t'} }
+ svint8_t &lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'svint8_t&' from expression of type 'svint16_t'} }
+
+ const svint8_t &const_lvalue_ref_sve_sc1 = sve_sc1;
+ const svint8_t &const_lvalue_ref_sve_sc2 = ext_produce_sve_sc ();
+ const svint8_t &const_lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'const svint8_t&' from expression of type 'svint16_t'} }
+
+ // Compound literals.
+
+ (int) { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+ // Arrays.
+
+ svint8_t array[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+ svint8_t zero_length_array[0]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+ svint8_t empty_init_array[] = {}; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+ // Assignment.
+
+ n = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in assignment} }
+
+ sve_sc1 = 0; // { dg-error {cannot convert 'int' to 'svint8_t' in assignment} }
+ sve_sc1 = sve_sc1;
+ sve_sc1 = gnu_sc1; // { dg-error {cannot convert 'int8x32_t'[^\n]* to 'svint8_t' in assignment} }
+ gnu_sc1 = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int8x32_t'} }
+ sve_sc1 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+ // Casting.
+
+ (void) sve_sc1;
+ (void) volatile_sve_sc1;
+ (void) *&volatile_sve_sc1;
+
+ // Addressing and dereferencing.
+
+ svint8_t *sve_sc_ptr = &sve_sc1;
+ int8x32_t *gnu_sc_ptr = &gnu_sc1;
+ sve_sc_ptr = (svint16_t *) 0; // { dg-error {cannot convert 'svint16_t\*' to 'svint8_t\*' in assignment} }
+
+ // Pointer assignment.
+
+ gnu_sc_ptr = sve_sc_ptr; // { dg-error {cannot convert 'svint8_t\*' to 'int8x32_t\*'} }
+ sve_sc_ptr = gnu_sc_ptr; // { dg-error {cannot convert 'int8x32_t\*'[^\n]* to 'svint8_t\*'} }
+
+ // Pointer arithmetic.
+
+ ++sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ --sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr++; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr--; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr += 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr += 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr -= 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr -= 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr - sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ gnu_sc_ptr - sve_sc_ptr; // { dg-error {invalid operands of types 'int8x32_t\*'[^\n]* and 'svint8_t\*' to binary 'operator-'} }
+ sve_sc_ptr - gnu_sc_ptr; // { dg-error {invalid operands of types 'svint8_t\*' and 'int8x32_t\*'[^\n]* to binary 'operator-'} }
+ sve_sc1 = sve_sc_ptr[0]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc1 = sve_sc_ptr[1]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+
+ // Pointer comparison.
+
+ sve_sc_ptr == &sve_sc1;
+ sve_sc_ptr != &sve_sc1;
+ sve_sc_ptr < &sve_sc1;
+ sve_sc_ptr <= &sve_sc1;
+ sve_sc_ptr > &sve_sc1;
+ sve_sc_ptr >= &sve_sc1;
+ gnu_sc_ptr == sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ gnu_sc_ptr != sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ gnu_sc_ptr < sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ gnu_sc_ptr <= sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ gnu_sc_ptr > sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ gnu_sc_ptr >= sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr == gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr != gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr < gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr <= gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr > gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+ sve_sc_ptr >= gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+
+ // New and delete.
+
+ new svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+ new svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+ new (global_sve_sc_ptr) svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+ new (global_sve_sc_ptr) svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+ sve_sc1.~svint8_t(); // { dg-error {expected class-name before '\(' token} }
+ delete sve_sc_ptr; // { dg-error {cannot delete objects with SVE type '(svint8_t|__SVInt8_t)'} }
+ delete[] sve_sc_ptr; // { dg-error {cannot delete objects with SVE type 'svint8_t'} }
+
+ // Conditional expressions.
+
+ 0 ? sve_sc1 : sve_sc1;
+ 0 ? sve_sc1 : sve_sh1; // { dg-error {different types 'svint8_t' and 'svint16_t'} }
+ 0 ? sve_sc1 : 0; // { dg-error {different types 'svint8_t' and 'int'} }
+ 0 ? 0 : sve_sc1; // { dg-error {different types 'int' and 'svint8_t'} }
+ 0 ? sve_sc1 : sve_sc1;
+ 0 ? sve_sc_ptr : sve_sc_ptr;
+ 0 ? sve_sc_ptr : gnu_sc_ptr; // { dg-error {conditional expression between distinct pointer types [^\n]*lacks a cast} }
+ 0 ? gnu_sc_ptr : sve_sc_ptr; // { dg-error {conditional expression between distinct pointer types [^\n]*lacks a cast} }
+
+ // Function arguments.
+
+ ext_consume_sve_sc (sve_sc1);
+ ext_consume_sve_sc (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ ext_consume_const_int_ref (sve_sc1); // { dg-error {invalid initialization of reference of type 'const int&' from expression of type 'svint8_t'} }
+ ext_consume_varargs (sve_sc1); // { dg-error {cannot convert 'svint8_t' to 'int'} }
+ ext_consume_varargs (1, sve_sc1);
+
+ // Function returns.
+
+ ext_produce_sve_sc ();
+ sve_sc1 = ext_produce_sve_sc ();
+ sve_sh1 = ext_produce_sve_sc (); // { dg-error {cannot convert 'svint8_t' to 'svint16_t' in assignment} }
+
+ // Auto
+
+#if __cplusplus >= 201103L
+ auto auto_sve_sc1 = sve_sc1;
+ auto auto_sve_sc1_return = ext_produce_sve_sc ();
+#endif
+
+ // Varargs processing.
+
+ __builtin_va_list valist;
+ __builtin_va_arg (valist, svint8_t);
+
+ // Other built-ins
+
+ __builtin_launder (sve_sc1); // { dg-error {non-pointer argument to '__builtin_launder'} }
+ __builtin_memcpy (&sve_sc1, &sve_sc2, 2);
+
+ // Lambdas
+
+#if __cplusplus >= 201103L
+ [sve_sc1] () {}; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+ [=] () { &sve_sc1; }; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+ [&sve_sc1] () { sve_sc1 = sve_sc2; }; // { dg-error {'sve_sc2' is not captured} "" { target c++11 } }
+ [&sve_sc1, &sve_sc2] () { sve_sc1 = sve_sc2; };
+ [&] () { sve_sc1 = sve_sc2; };
+ [] () { return ext_produce_sve_sc (); } ();
+#endif
+
+ // Exceptions
+
+ throw svint8_t (); // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t &x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t *x) {}
+#if __cplusplus < 201103L
+ thrower2 ();
+#endif
+
+ // Use in traits. Doesn't use static_assert so that tests work with
+ // earlier -std=s.
+
+ { typedef int f[__has_nothrow_assign (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_assign (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_nothrow_constructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_constructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_nothrow_copy (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_copy (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_destructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_unique_object_representations (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__has_virtual_destructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_abstract (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_aggregate (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_base_of (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_base_of (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[!__is_class (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_empty (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_enum (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_final (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_pod (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_polymorphic (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t *, svint8_t *) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t *, int8x32_t *) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (int8x32_t *, svint8_t *) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_trivial (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_union (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_copyable (svint8_t) ? 1 : -1]; }
+ /* The intention is that svint8_t should behave like int8x32_t here. If the behavior
+ for int8x32_t changes then the behavior for svint8_t should change in the same
+ way. */
+ { typedef int f[!__is_trivially_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+}
+
+// Function parameters in definitions.
+
+void
+unnamed_st1 (svint8_t)
+{
+}
+
+void
+named_st1 (svint8_t param1)
+{
+ svint8_t sve_sc1 = param1;
+}
+
+// Function return values in definitions.
+
+svint8_t
+ret_st1 (svint8_t param)
+{
+ return param;
+}
+
+svint8_t
+bad_ret_st1 (svint16_t param)
+{
+ return param; // { dg-error {cannot convert 'svint16_t' to 'svint8_t' in return} }
+}
+
+#if __cplusplus >= 201103L
+template<typename T>
+void
+const_to_sve_sc (T i)
+{
+ constexpr svint8_t a = (svint8_t) i;
+}
+#endif
+
+template<typename T>
+int
+get_x (T *a)
+{
+ return a->a; // { dg-error {request for member 'a' in '\* a', which is of non-class type} }
+}
+template int get_x<svint8_t>(svint8_t *);
+
+#if __cplusplus < 201103L
+void thrower3 () throw (svint8_t) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Using "auto" as a return type.
+
+#if __cplusplus >= 201402L
+auto auto_ret_sve_sc (svint8_t *ptr) { return *ptr; }
+const auto &auto_ret_const_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &auto_ret_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &&auto_ret_sve_sc_rvalue_ref (svint8_t *ptr) { return *ptr; }
+#endif
Index: gcc/testsuite/g++.dg/ext/sve-sizeless-2.C
===================================================================
--- /dev/null 2019-09-17 11:41:18.176664108 +0100
+++ gcc/testsuite/g++.dg/ext/sve-sizeless-2.C 2019-12-06 14:11:28.233552680 +0000
@@ -0,0 +1,420 @@
+// { dg-do compile { target aarch64*-*-* } }
+// { dg-options "-Wclass-memaccess -msve-vector-bits=256" }
+
+#pragma GCC target "+sve"
+
+typedef __SIZE_TYPE__ size_t;
+inline void *operator new (size_t, void *__p) throw() { return __p; }
+
+#include <arm_sve.h>
+
+typedef signed char int8x32_t __attribute__((__vector_size__ (32)));
+
+// Sizeless objects with global scope.
+
+svint8_t global_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+static svint8_t local_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+extern svint8_t extern_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+__thread svint8_t tls_sve_sc; // { dg-error {variables of type 'svint8_t' cannot have thread-local storage duration} }
+
+// Sizeless arrays.
+
+typedef svint8_t array_type[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+extern svint8_t extern_array[]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+// Sizeless member variables.
+
+struct struct1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+union union1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+#if __cplusplus >= 201103L
+struct static_sve_sc {
+ static svint8_t sve_sc1 = {}; // { dg-error {SVE type 'svint8_t' does not have a fixed size} "" { target c++11 } }
+};
+#endif
+
+// Sizeless member variables in templated structures.
+
+template<typename T>
+struct templated_struct1 {
+ svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+template<typename T>
+struct templated_struct2 {
+ T a; // { dg-error {member variables cannot have SVE type '(svint8_t|__SVInt8_t)'} }
+};
+
+template class templated_struct2<svint8_t>;
+
+template<typename T>
+struct templated_struct3 {
+ T &a;
+};
+
+template class templated_struct3<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<typename T>
+struct templated_struct4 {
+ static T a; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+ static T b = {}; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+};
+
+template class templated_struct4<svint8_t>;
+#endif
+
+template<typename T> struct templated_struct5 : T {}; // { dg-error {base type '[^']*' fails to be a struct or class type} }
+template class templated_struct5<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<int N> using typedef_sizeless1 = svint8_t;
+template<int N> using typedef_sizeless1 = svint8_t; // { dg-error {redefinition of 'template<int N> using typedef_sizeless1 = svint8_t'} "" { target c++11 } }
+template<typename T> using array = T[2];
+#endif
+
+// Pointers to sizeless types.
+
+svint8_t *global_sve_sc_ptr;
+
+// Sizeless arguments and return values.
+
+void ext_consume_sve_sc (svint8_t);
+void ext_consume_const_int_ref (const int &);
+void ext_consume_varargs (int, ...);
+svint8_t ext_produce_sve_sc ();
+
+// Sizeless types in throw specifications.
+
+#if __cplusplus < 201103L
+void thrower1 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower2 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower3 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Main tests for statements and expressions.
+
+void
+statements (int n)
+{
+ // Local declarations.
+
+ svint8_t sve_sc1, sve_sc2;
+ volatile svint8_t volatile_sve_sc1;
+ int8x32_t gnu_sc1;
+ svint16_t sve_sh1;
+
+ // Layout queries.
+
+ sizeof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ sizeof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ sizeof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+ __alignof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+ __alignof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+ __alignof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+
+#if __cplusplus >= 201103L
+ array<svint8_t> foo = {}; // { dg-error {array elements cannot have SVE type '(svint8_t|__SVInt8_t)'} "" { target c++11 } }
+#endif
+
+ // Initialization.
+
+ int init_int1 = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+ int init_int2 = { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+ svint8_t init_sve_sc1 (sve_sc1);
+ svint8_t init_sve_sc2 (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ svint8_t init_sve_sc3 = sve_sc1;
+ svint8_t init_sve_sc4 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ svint8_t init_sve_sc5 = {};
+ svint8_t init_sve_sc6 = { sve_sc1 };
+ svint8_t init_sve_sc7 = { sve_sh1 }; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+ // Constructor calls.
+
+ (0, svint8_t ());
+
+ // Lvalue reference binding
+
+ svint8_t &lvalue_ref_sve_sc1 = sve_sc1;
+ svint8_t &lvalue_ref_sve_sc2 = ext_produce_sve_sc (); // { dg-error {cannot bind non-const lvalue reference of type 'svint8_t&' to an rvalue of type 'svint8_t'} }
+ svint8_t &lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'svint8_t&' from expression of type 'svint16_t'} }
+
+ const svint8_t &const_lvalue_ref_sve_sc1 = sve_sc1;
+ const svint8_t &const_lvalue_ref_sve_sc2 = ext_produce_sve_sc ();
+ const svint8_t &const_lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'const svint8_t&' from expression of type 'svint16_t'} }
+
+ // Compound literals.
+
+ (int) { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+ // Arrays.
+
+ svint8_t array[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+ svint8_t zero_length_array[0]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+ svint8_t empty_init_array[] = {}; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+ // Assignment.
+
+ n = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in assignment} }
+
+ sve_sc1 = 0; // { dg-error {cannot convert 'int' to 'svint8_t' in assignment} }
+ sve_sc1 = sve_sc1;
+ sve_sc1 = gnu_sc1;
+ gnu_sc1 = sve_sc1;
+ sve_sc1 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+ // Casting.
+
+ (void) sve_sc1;
+ (void) volatile_sve_sc1;
+ (void) *&volatile_sve_sc1;
+
+ // Addressing and dereferencing.
+
+ svint8_t *sve_sc_ptr = &sve_sc1;
+ int8x32_t *gnu_sc_ptr = &gnu_sc1;
+ sve_sc_ptr = (svint16_t *) 0; // { dg-error {cannot convert 'svint16_t\*' to 'svint8_t\*' in assignment} }
+
+ // Pointer assignment.
+
+ gnu_sc_ptr = sve_sc_ptr;
+ sve_sc_ptr = gnu_sc_ptr;
+
+ // Pointer arithmetic.
+
+ ++sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ --sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr++; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr--; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr += 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr += 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr -= 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr -= 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr - sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ gnu_sc_ptr - sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc_ptr - gnu_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc1 = sve_sc_ptr[0]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+ sve_sc1 = sve_sc_ptr[1]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+
+ // Pointer comparison.
+
+ sve_sc_ptr == &sve_sc1;
+ sve_sc_ptr != &sve_sc1;
+ sve_sc_ptr < &sve_sc1;
+ sve_sc_ptr <= &sve_sc1;
+ sve_sc_ptr > &sve_sc1;
+ sve_sc_ptr >= &sve_sc1;
+ gnu_sc_ptr == sve_sc_ptr;
+ gnu_sc_ptr != sve_sc_ptr;
+ gnu_sc_ptr < sve_sc_ptr;
+ gnu_sc_ptr <= sve_sc_ptr;
+ gnu_sc_ptr > sve_sc_ptr;
+ gnu_sc_ptr >= sve_sc_ptr;
+ sve_sc_ptr == gnu_sc_ptr;
+ sve_sc_ptr != gnu_sc_ptr;
+ sve_sc_ptr < gnu_sc_ptr;
+ sve_sc_ptr <= gnu_sc_ptr;
+ sve_sc_ptr > gnu_sc_ptr;
+ sve_sc_ptr >= gnu_sc_ptr;
+
+ // New and delete.
+
+ new svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+ new svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+ new (global_sve_sc_ptr) svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+ new (global_sve_sc_ptr) svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+ sve_sc1.~svint8_t(); // { dg-error {expected class-name before '\(' token} }
+ delete sve_sc_ptr; // { dg-error {cannot delete objects with SVE type '(svint8_t|__SVInt8_t)'} }
+ delete[] sve_sc_ptr; // { dg-error {cannot delete objects with SVE type 'svint8_t'} }
+
+ // Conditional expressions.
+
+ 0 ? sve_sc1 : sve_sc1;
+ 0 ? sve_sc1 : sve_sh1; // { dg-error {different types 'svint8_t' and 'svint16_t'} }
+ 0 ? sve_sc1 : 0; // { dg-error {different types 'svint8_t' and 'int'} }
+ 0 ? 0 : sve_sc1; // { dg-error {different types 'int' and 'svint8_t'} }
+ 0 ? sve_sc1 : sve_sc1;
+ 0 ? sve_sc_ptr : sve_sc_ptr;
+ 0 ? sve_sc_ptr : gnu_sc_ptr;
+ 0 ? gnu_sc_ptr : sve_sc_ptr;
+
+ // Function arguments.
+
+ ext_consume_sve_sc (sve_sc1);
+ ext_consume_sve_sc (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+ ext_consume_const_int_ref (sve_sc1); // { dg-error {invalid initialization of reference of type 'const int&' from expression of type 'svint8_t'} }
+ ext_consume_varargs (sve_sc1); // { dg-error {cannot convert 'svint8_t' to 'int'} }
+ ext_consume_varargs (1, sve_sc1);
+
+ // Function returns.
+
+ ext_produce_sve_sc ();
+ sve_sc1 = ext_produce_sve_sc ();
+ sve_sh1 = ext_produce_sve_sc (); // { dg-error {cannot convert 'svint8_t' to 'svint16_t' in assignment} }
+
+ // Auto
+
+#if __cplusplus >= 201103L
+ auto auto_sve_sc1 = sve_sc1;
+ auto auto_sve_sc1_return = ext_produce_sve_sc ();
+#endif
+
+ // Varargs processing.
+
+ __builtin_va_list valist;
+ __builtin_va_arg (valist, svint8_t);
+
+ // Other built-ins
+
+ __builtin_launder (sve_sc1); // { dg-error {non-pointer argument to '__builtin_launder'} }
+ __builtin_memcpy (&sve_sc1, &sve_sc2, 2);
+
+ // Lambdas
+
+#if __cplusplus >= 201103L
+ [sve_sc1] () {}; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+ [=] () { &sve_sc1; }; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+ [&sve_sc1] () { sve_sc1 = sve_sc2; }; // { dg-error {'sve_sc2' is not captured} "" { target c++11 } }
+ [&sve_sc1, &sve_sc2] () { sve_sc1 = sve_sc2; };
+ [&] () { sve_sc1 = sve_sc2; };
+ [] () { return ext_produce_sve_sc (); } ();
+#endif
+
+ // Exceptions
+
+ throw svint8_t (); // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t &x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+ try {} catch (svint8_t *x) {}
+#if __cplusplus < 201103L
+ thrower2 ();
+#endif
+
+ // Use in traits. Doesn't use static_assert so that tests work with
+ // earlier -std=s.
+
+ { typedef int f[__has_nothrow_assign (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_assign (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_nothrow_constructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_constructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_nothrow_copy (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_copy (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_trivial_destructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[__has_unique_object_representations (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__has_virtual_destructor (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_abstract (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_aggregate (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_base_of (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_base_of (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[!__is_class (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_empty (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_enum (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_final (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_pod (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_polymorphic (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t *, svint8_t *) ? 1 : -1]; }
+ { typedef int f[__is_same_as (svint8_t *, int8x32_t *) ? 1 : -1]; }
+ { typedef int f[__is_same_as (int8x32_t *, svint8_t *) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_same_as (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_trivial (svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_union (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_copyable (svint8_t) ? 1 : -1]; }
+ /* The intention is that svint8_t should behave like int8x32_t here. If the behavior
+ for int8x32_t changes then the behavior for svint8_t should change in the same
+ way. */
+ { typedef int f[!__is_trivially_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_trivially_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_trivially_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+ { typedef int f[__is_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (svint8_t, int) ? 1 : -1]; }
+ { typedef int f[!__is_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+}
+
+// Function parameters in definitions.
+
+void
+unnamed_st1 (svint8_t)
+{
+}
+
+void
+named_st1 (svint8_t param1)
+{
+ svint8_t sve_sc1 = param1;
+}
+
+// Function return values in definitions.
+
+svint8_t
+ret_st1 (svint8_t param)
+{
+ return param;
+}
+
+svint8_t
+bad_ret_st1 (svint16_t param)
+{
+ return param; // { dg-error {cannot convert 'svint16_t' to 'svint8_t' in return} }
+}
+
+#if __cplusplus >= 201103L
+template<typename T>
+void
+const_to_sve_sc (T i)
+{
+ constexpr svint8_t a = (svint8_t) i;
+}
+#endif
+
+template<typename T>
+int
+get_x (T *a)
+{
+ return a->a; // { dg-error {request for member 'a' in '\* a', which is of non-class type} }
+}
+template int get_x<svint8_t>(svint8_t *);
+
+#if __cplusplus < 201103L
+void thrower3 () throw (svint8_t) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Using "auto" as a return type.
+
+#if __cplusplus >= 201402L
+auto auto_ret_sve_sc (svint8_t *ptr) { return *ptr; }
+const auto &auto_ret_const_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &auto_ret_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &&auto_ret_sve_sc_rvalue_ref (svint8_t *ptr) { return *ptr; }
+#endif
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