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Function `dmd.argtypes_aarch64.isHFVA`

A Homogeneous Floating-point/Vector Aggregate (HFA/HVA) is an ARM/AArch64 concept that consists of up to 4 elements of the same floating point/vector type. It is the aggregate final data layout that matters so structs, unions, static arrays and complex numbers can result in an HFVA.


						
				extern(C++) bool isHFVA
				(
				

				  Type t,
				

				  int maxNumElements = 4,
				

				  Type* rewriteType = null
				

				);

simple HFAs: struct F1 {float f;} struct D4 {double a,b,c,d;} interesting HFA: struct {F1[2] vals; float weight;}

If the type is an HFVA and rewriteType is specified, it is set to a corresponding static array type.

Authors

Martin Kinkelin

License

Boost License 1.0

API Documentation

Function dmd.argtypes_aarch64.isHFVA

Authors

License

Function `dmd.argtypes_aarch64.isHFVA`