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Added support for simd primitives to std.traits.Signed/Unsigned #1391

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Merged
WalterBright merged 1 commit into from
May 12, 2014
Merged

Added support for simd primitives to std.traits.Signed/Unsigned #1391

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54 changes: 51 additions & 3 deletions std/traits.d
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Original file line number Diff line number Diff line change
Expand Up @@ -727,6 +727,12 @@ private template fqnType(T,
format("%s*", fqnType!(PointerTarget!T, qualifiers))
);
}
else static if (is(T : __vector(V[N]), V, size_t N))
{
enum fqnType = chain!(
format("__vector(%s[%s])", fqnType!(V, qualifiers), N)
);
}
else
// In case something is forgotten
static assert(0, "Unrecognized type " ~ T.stringof ~ ", can't convert to fully qualified string");
Expand Down Expand Up @@ -783,6 +789,12 @@ unittest
static assert(fqn!(typeof(dVarArg)) == "void(...)");
static assert(fqn!(typeof(dVarArg2)) == "void(int, ...)");
static assert(fqn!(typeof(typesafeVarArg)) == "void(int[] ...)");

// SIMD vector
static if (is(__vector(float[4])))
{
static assert(fqn!(__vector(float[4])) == "__vector(float[4])");
}
}
}

Expand Down Expand Up @@ -5270,8 +5282,25 @@ unittest
//static assert( isAssociativeArray!EAA);
}

/**
* Detect whether type $(D T) is a builtin type.
*/
enum bool isBuiltinType(T) = is(BuiltinTypeOf!T) && !isAggregateType!T;

/**
* Detect whether type $(D T) is a SIMD vector type.
*/
enum bool isSIMDVector(T) = is(T : __vector(V[N]), V, size_t N);

unittest
{
alias __vector(float[4]) SimdVec;
static assert(isSIMDVector!(__vector(float[4])));
static assert(isSIMDVector!SimdVec);
static assert(!isSIMDVector!uint);
static assert(!isSIMDVector!(float[4]));
}

/**
* Detect whether type $(D T) is a pointer.
*/
Expand Down Expand Up @@ -5929,9 +5958,11 @@ template Unsigned(T)
{
template Impl(T)
{
static if (isUnsigned!T)
static if (is(T : __vector(V[N]), V, size_t N))
alias Impl = __vector(Impl!V[N]);
else static if (isUnsigned!T)
alias Impl = T;
else static if (isSigned!T)
else static if (isSigned!T && !isFloatingPoint!T)
{
static if (is(T == byte )) alias Impl = ubyte;
static if (is(T == short)) alias Impl = ushort;
Expand All @@ -5954,6 +5985,13 @@ unittest
static assert(is(U1 == uint));
static assert(is(U2 == const(uint)));
static assert(is(U3 == immutable(uint)));
static if (is(__vector(int[4])) && is(__vector(uint[4])))
{
alias Unsigned!(__vector(int[4])) UV1;
alias Unsigned!(const(__vector(int[4]))) UV2;
static assert(is(UV1 == __vector(uint[4])));
static assert(is(UV2 == const(__vector(uint[4]))));
}
//struct S {}
//alias U2 = Unsigned!S;
//alias U3 = Unsigned!double;
Expand Down Expand Up @@ -6003,7 +6041,9 @@ template Signed(T)
{
template Impl(T)
{
static if (isSigned!T)
static if (is(T : __vector(V[N]), V, size_t N))
alias Impl = __vector(Impl!V[N]);
else static if (isSigned!T)
alias Impl = T;
else static if (isUnsigned!T)
{
Expand All @@ -6028,6 +6068,14 @@ unittest
static assert(is(S1 == int));
static assert(is(S2 == const(int)));
static assert(is(S3 == immutable(int)));
static assert(is(Signed!float == float));
static if (is(__vector(int[4])) && is(__vector(uint[4])))
{
alias Signed!(__vector(uint[4])) SV1;
alias Signed!(const(__vector(uint[4]))) SV2;
static assert(is(SV1 == __vector(int[4])));
static assert(is(SV2 == const(__vector(int[4]))));
}
}


Expand Down