================
@@ -242,11 +267,27 @@ QualTypeMapper::convertBuiltinType(const BuiltinType *BT)
{
case BuiltinType::ObjCSel:
return createPointerTypeForPointee(QT);
- // Target-specific vector/matrix types — not yet implemented.
-#define SVE_TYPE(Name, Id, SingletonId) case BuiltinType::Id:
+ // AArch64 SVE data and predicate types, including the x2/x3/x4 tuples.
+#define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId)
\
+ case BuiltinType::Id:
+#define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId)
\
+ case BuiltinType::Id:
#include "clang/Basic/AArch64ACLETypes.def"
+ return convertSVEBuiltinType(BT);
+
+ case BuiltinType::SveCount:
+ return Builder.getSVECountType(getTypeAlign(QT));
+
+ // TODO: __mfp8 has no floating-point semantics of its own, so representing
+ // it needs a decision about how the ABI library should model opaque
+ // floating-point data. As an mfloat8 vector element it is treated as an
+ // 8-bit integer, but that is not right for the scalar type, which is passed
+ // in a floating-point register.
----------------
paulwalker-arm wrote:
Unfortunately LLVM's target type support (specifically the support to allow
them in vectors) arrived after the initial AArch64 FP8 implementation, although
I do have it on my TODO list to see if I can reimplement to use it. For
mfloat8 specifically though we don't model it as a stock `i8` but rather a `<1
x i8>` to signal vector registers should be used for function parameters and
returns.
https://github.com/llvm/llvm-project/pull/221375
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