[libc-commits] [libc] [libc][NFC] Make `EXP_MANT_MASK` an implementation detail (PR #75621)

[Guillaume Chatelet via libc-commits]

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@@ -34,7 +35,7 @@ LLVM_LIBC_FUNCTION(float, acoshf, (float x)) {
 
   if (LIBC_UNLIKELY(x_u >= 0x4f8ffb03)) {
     // Check for exceptional values.
-    uint32_t x_abs = x_u & FPBits_t::EXP_MANT_MASK;
+    uint32_t x_abs = FloatProp::abs(x_u);
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gchatelet wrote:

@lntue let me know what you think but it might be confusing to see `abs` on `FloatProperties` which is about ... well float **properties**.

Ultimately I think we should just have one or two types for interacting with floating point number representations. AFAICT right now we have : `FloatProperties`, `FPBits`, `DyadicFloat` and `NormalFloat`. I'm not completely clear on the scope of each of them and I'd like to reduce them if possible.

https://github.com/llvm/llvm-project/pull/75621