@@ -502,6 +502,15 @@ convert_expr (tree exp, Type *etype, Type *totype)
gcc_assert (totype->size () == etype->size ());
result = build_vconvert (build_ctype (totype), exp);
}
+ else if (tbtype->ty == Tvector && tbtype->size () == ebtype->size ())
+ {
+ /* Allow casting from array to vector as if its an unaligned load. */
+ tree type = build_ctype (totype);
+ tree unaligned_type = build_variant_type_copy (type);
+ SET_TYPE_ALIGN (unaligned_type, 1 * BITS_PER_UNIT);
+ TYPE_USER_ALIGN (unaligned_type) = 1;
+ result = convert (type, build_vconvert (unaligned_type, exp));
+ }
else
{
error ("cannot cast expression of type %qs to type %qs",
@@ -636,6 +645,39 @@ convert_for_rvalue (tree expr, Type *etype, Type *totype)
break;
}
+ if (tbtype->ty == Tsarray
+ && ebtype->ty == Tsarray
+ && tbtype->nextOf ()->ty == ebtype->nextOf ()->ty
+ && INDIRECT_REF_P (expr)
+ && CONVERT_EXPR_CODE_P (TREE_CODE (TREE_OPERAND (expr, 0)))
+ && TREE_CODE (TREE_OPERAND (TREE_OPERAND (expr, 0), 0)) == ADDR_EXPR)
+ {
+ /* If expression is a vector that was casted to an array either by
+ explicit type cast or by taking the vector's `.array' value, strip the
+ reinterpret cast and build a constructor instead. */
+ tree ptr = TREE_OPERAND (TREE_OPERAND (expr, 0), 0);
+
+ if (VECTOR_TYPE_P (TREE_TYPE (TREE_TYPE (ptr))))
+ {
+ /* Rewrite: `*(Array *)&vector'
+ into: `{ vector[0], vector[1], ... }' */
+ tree array = d_save_expr (TREE_OPERAND (ptr, 0));
+ array = build1 (VIEW_CONVERT_EXPR, TREE_TYPE (expr), array);
+
+ uinteger_t dim = tbtype->isTypeSArray ()->dim->toUInteger ();
+ vec <constructor_elt, va_gc> *elms = NULL;
+ for (uinteger_t i = 0; i < dim; i++)
+ {
+ tree index = size_int (i);
+ tree value = build4 (ARRAY_REF, TREE_TYPE (TREE_TYPE (array)),
+ array, index, NULL_TREE, NULL_TREE);
+ CONSTRUCTOR_APPEND_ELT (elms, index, value);
+ }
+
+ return build_constructor (build_ctype (totype), elms);
+ }
+ }
+
return result ? result : convert_expr (expr, etype, totype);
}
@@ -696,7 +738,7 @@ convert_for_assignment (tree expr, Type *etype, Type *totype)
return expr;
}
- return convert_expr (expr, etype, totype);
+ return convert_for_rvalue (expr, etype, totype);
}
/* Return a TREE representation of EXPR converted to represent
@@ -6330,6 +6330,7 @@ public:
if (tob->ty == Tvector && t1b->ty != Tvector)
{
result = new VectorExp(exp->loc, exp->e1, exp->to);
+ result = expressionSemantic(result, sc);
return;
}
@@ -3034,14 +3034,13 @@ public:
void visit (VectorExp *e)
{
- tree type = build_ctype (e->type);
-
/* First handle array literal expressions. */
if (e->e1->op == TOKarrayliteral)
{
ArrayLiteralExp *ale = e->e1->isArrayLiteralExp ();
vec <constructor_elt, va_gc> *elms = NULL;
bool constant_p = true;
+ tree type = build_ctype (e->type);
vec_safe_reserve (elms, ale->elements->length);
for (size_t i = 0; i < ale->elements->length; i++)
@@ -3061,9 +3060,16 @@ public:
else
this->result_ = build_constructor (type, elms);
}
+ else if (e->e1->type->toBasetype ()->ty == Tsarray)
+ {
+ /* Build a vector representation from a static array. */
+ this->result_ = convert_expr (build_expr (e->e1, this->constp_),
+ e->e1->type, e->type);
+ }
else
{
/* Build constructor from single value. */
+ tree type = build_ctype (e->type);
tree value = d_convert (TREE_TYPE (type),
build_expr (e->e1, this->constp_, true));
this->result_ = build_vector_from_val (type, value);
@@ -1090,6 +1090,7 @@ public:
/* Generate: (<retval> = expr, return <retval>); */
tree expr = build_expr_dtor (s->exp);
tree init = stabilize_expr (&expr);
+ expr = convert_for_rvalue (expr, s->exp->type, type);
expr = build_assign (INIT_EXPR, this->func_->shidden, expr);
add_stmt (compound_expr (init, expr));
}
new file mode 100644
@@ -0,0 +1,36 @@
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106139
+// { dg-do compile }
+
+alias A = int[4];
+
+static if (__traits(compiles, __vector(A))):
+
+A vector2array(__vector(A) v)
+{
+ return cast(A)v;
+}
+
+void vector2array(ref A a, __vector(A) v)
+{
+ a = cast(A)v;
+}
+
+__vector(A) array2vector(A a)
+{
+ return cast(__vector(A)) a;
+}
+
+void array2vector(ref __vector(A) v, A a)
+{
+ v = cast(__vector(A))a;
+}
+
+A vector2array_array(__vector(A) v)
+{
+ return v.array;
+}
+
+void vector2array_array(ref A a, __vector(A) v)
+{
+ a = v.array;
+}
new file mode 100644
@@ -0,0 +1,36 @@
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106139
+// { dg-do compile }
+
+alias A = float[4];
+
+static if (__traits(compiles, __vector(A))):
+
+A vector2array(__vector(A) v)
+{
+ return cast(A)v;
+}
+
+void vector2array(ref A a, __vector(A) v)
+{
+ a = cast(A)v;
+}
+
+__vector(A) array2vector(A a)
+{
+ return cast(__vector(A)) a;
+}
+
+void array2vector(ref __vector(A) v, A a)
+{
+ v = cast(__vector(A))a;
+}
+
+A vector2array_array(__vector(A) v)
+{
+ return v.array;
+}
+
+void vector2array_array(ref A a, __vector(A) v)
+{
+ a = v.array;
+}
new file mode 100644
@@ -0,0 +1,27 @@
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106139
+// { dg-do compile }
+
+alias V = int[4];
+alias A = float[4];
+
+static if (__traits(compiles, __vector(V))):
+
+A vector2array(__vector(V) v)
+{
+ return cast(A)v;
+}
+
+void vector2array(ref A a, __vector(V) v)
+{
+ a = cast(A)v;
+}
+
+__vector(V) array2vector(A a)
+{
+ return cast(__vector(V)) a;
+}
+
+void array2vector(ref __vector(V) v, A a)
+{
+ v = cast(__vector(V))a;
+}
new file mode 100644
@@ -0,0 +1,27 @@
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106139
+// { dg-do compile }
+
+alias V = float[4];
+alias A = int[4];
+
+static if (__traits(compiles, __vector(V))):
+
+A vector2array(__vector(V) v)
+{
+ return cast(A)v;
+}
+
+void vector2array(ref A a, __vector(V) v)
+{
+ a = cast(A)v;
+}
+
+__vector(V) array2vector(A a)
+{
+ return cast(__vector(V)) a;
+}
+
+void array2vector(ref __vector(V) v, A a)
+{
+ v = cast(__vector(V))a;
+}
new file mode 100644
@@ -0,0 +1,13 @@
+/*
+DISABLED: freebsd32 linux32 osx32 win32
+TEST_OUTPUT:
+---
+fail_compilation/ice20264.d(12): Error: `cast(__vector(float[4]))a` is not an lvalue and cannot be modified
+---
+*/
+
+void foo(float *a)
+{
+ alias float4 = __vector(float[4]);
+ cast(float4)(a) = 1.0f;
+}