[clang] [llvm] [SystemZ] Support fp16 vector ABI and basic codegen. (PR #171066)

[Jonas Paulsson via cfe-commits]

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@@ -842,6 +845,34 @@ bool SystemZTargetLowering::useSoftFloat() const {
   return Subtarget.hasSoftFloat();
 }
 
+unsigned
+SystemZTargetLowering::getNumRegisters(LLVMContext &Context, EVT VT,
+                                       std::optional<MVT> RegisterVT) const {
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JonPsson1 wrote:

Tried this, but could not get around problems with using SystemZSubtarget class methods... (see commit history once pushed).

https://github.com/llvm/llvm-project/pull/171066