Bug 10518 – Static SIMD vector constants cannot be defined.

I've tested two ways to define a global SIMD constant and found this: -------8<--------- import core.simd; import std.stdio; version (DigitalMars) { enum isDMD = true; enum isGDC = false; enum isLDC = false; } else version (GNU) { enum isDMD = false; enum isGDC = true; enum isLDC = false; } else version (LDC) { enum isDMD = false; enum isGDC = false; enum isLDC = true; } void main() { static if (!isLDC) { // ldc: Error: expression 'cast(immutable(__vector(ubyte[16LU])))cast(ubyte)123u' is not a constant static immutable ubyte16 vec1 = 123; writeln(vec1.array); } static if (!isDMD && !isLDC && !isGDC) { // dmd: init.c:660: virtual Expression* ArrayInitializer::toExpression(Type*): Assertion `0' failed. // gdc: init.c:615: virtual Expression* ArrayInitializer::toExpression(): Assertion `0' failed. // ldc: infinite loop static immutable ubyte16 vec2 = [123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123]; writeln(vec2.array); } } -------->8---------- So DMD crashes when given a full initializer array, but works with a scalar. I'd expect both to work and the array initializer be the more general case.

*** This issue has been marked as a duplicate of issue 10312 ***