Expose more properties of llvm::fltSemantics

Summary: Adds accessor functions for all the fields in llvm::fltSemantics. This will be used in MergeFunctions to order two APFloats with different semanatics.

Author: jrkoenig
Reviewers: jfb
Subscribers: dschuff, llvm-commits
Differential revision: http://reviews.llvm.org/D12253

llvm-svn: 245999

2 files changed, 18 insertions, 0 deletions

diff --git a/llvm/include/llvm/ADT/APFloat.h b/llvm/include/llvm/ADT/APFloat.h
index 76615affb25..bc7335e5b73 100644
--- a/llvm/include/llvm/ADT/APFloat.h
+++ b/llvm/include/llvm/ADT/APFloat.h
@@ -142,6 +142,9 @@ public:
   /// @}
 
   static unsigned int semanticsPrecision(const fltSemantics &);
+  static ExponentType semanticsMinExponent(const fltSemantics &);
+  static ExponentType semanticsMaxExponent(const fltSemantics &);
+  static unsigned int semanticsSizeInBits(const fltSemantics &);
 
   /// IEEE-754R 5.11: Floating Point Comparison Relations.
   enum cmpResult {
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index 43d009976bd..6bcc053d467 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -841,6 +841,21 @@ APFloat::semanticsPrecision(const fltSemantics &semantics)
 {
   return semantics.precision;
 }
+APFloat::ExponentType
+APFloat::semanticsMaxExponent(const fltSemantics &semantics)
+{
+  return semantics.maxExponent;
+}
+APFloat::ExponentType
+APFloat::semanticsMinExponent(const fltSemantics &semantics)
+{
+  return semantics.minExponent;
+}
+unsigned int
+APFloat::semanticsSizeInBits(const fltSemantics &semantics)
+{
+  return semantics.sizeInBits;
+}
 
 const integerPart *
 APFloat::significandParts() const