[libc-commits] [libc] [llvm] [libc][math][c23] Improve rsqrtf16 function for targets without fp32 FPUs. (PR #160639)

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@@ -24,6 +24,237 @@
 namespace LIBC_NAMESPACE_DECL {
 namespace math {
 
+namespace rsqrtf16_internal {
+
+using FPBits = fputil::FPBits<float16>;
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lntue wrote:

Las nit: Do you mind you either wrapping this under `#ifndef LIBC_TARGET_CPU_HAS_FPU_FLOAT`, or moving this to `rsqrtf16_no_float.h`?

https://github.com/llvm/llvm-project/pull/160639