[llvm] 3b7091b - [APFloat] add predicates to fltSemantics for hasZero and hasSignedRepr (#111451)

[via llvm-commits]

Author: Ariel-Burton
Date: 2024-10-09T08:37:40-04:00
New Revision: 3b7091bcf3b48b63724500d821dc7a0ce8ffa3c9

URL: https://github.com/llvm/llvm-project/commit/3b7091bcf3b48b63724500d821dc7a0ce8ffa3c9
DIFF: https://github.com/llvm/llvm-project/commit/3b7091bcf3b48b63724500d821dc7a0ce8ffa3c9.diff

LOG: [APFloat] add predicates to fltSemantics for hasZero and hasSignedRepr (#111451)

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

Added: 
    

Modified: 
    llvm/include/llvm/ADT/APFloat.h
    llvm/lib/Support/APFloat.cpp

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/APFloat.h b/llvm/include/llvm/ADT/APFloat.h
index c3bbd9d83a0ecb..6f1e24e5da33a9 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 d1b3c936dc589e..a33b6c4a6ddc63 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.