[llvm] [APFloat] add predicaes to fltSemantics for hasZero and hasSignedRepr (PR #111451)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: None (Ariel-Burton)

<details>
<summary>Changes</summary>

We add static methods to APFloatBase to allow the hasZero and hasSignedRepr properties of fltSemantics to be obtained.

---
Full diff: https://github.com/llvm/llvm-project/pull/111451.diff


2 Files Affected:

- (modified) llvm/include/llvm/ADT/APFloat.h (+2) 
- (modified) llvm/lib/Support/APFloat.cpp (+8) 


``````````diff
diff --git a/llvm/include/llvm/ADT/APFloat.h b/llvm/include/llvm/ADT/APFloat.h
index 40131c83a8ef45..e7e32be0ef595c 100644
--- a/llvm/include/llvm/ADT/APFloat.h
+++ b/llvm/include/llvm/ADT/APFloat.h
@@ -309,6 +309,8 @@ struct APFloatBase {
   static ExponentType semanticsMaxExponent(const fltSemantics &);
   static unsigned int semanticsSizeInBits(const fltSemantics &);
   static unsigned int semanticsIntSizeInBits(const fltSemantics&, bool);
+  static bool semanticsHasZero(const fltSemantics &);
+  static bool semanticsHasSignedRepr(const fltSemantics &);
 
   // Returns true if any number described by \p Src can be precisely represented
   // by a normal (not subnormal) value in \p Dst.
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index 03413f6eb6fe71..25500d29c4e4ea 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -367,6 +367,14 @@ unsigned int APFloatBase::semanticsIntSizeInBits(const fltSemantics &semantics,
   return MinBitWidth;
 }
 
+bool APFloatBase::semanticsHasZero(const fltSemantics &semantics) {
+  return semantics.hasZero;
+}
+
+bool APFloatBase::semanticsHasSignedRepr(const fltSemantics &semantics) {
+  return semantics.hasSignedRepr;
+}
+
 bool APFloatBase::isRepresentableAsNormalIn(const fltSemantics &Src,
                                             const fltSemantics &Dst) {
   // Exponent range must be larger.

``````````

</details>


https://github.com/llvm/llvm-project/pull/111451