Jonas Paulsson 6d03f51f0c [SystemZ] Add support for 16-bit floating point. (#109164) ...

- _Float16 is now accepted by Clang.

- The half IR type is fully handled by the backend.

- These values are passed in FP registers and converted to/from float around
  each operation.

- Compiler-rt conversion functions are now built for s390x including the missing
  extendhfdf2 which was added.

Fixes #50374

2025-04-16 20:02:56 +02:00

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