diff options
| -rw-r--r-- | include/llvm/CodeGen/SelectionDAGNodes.h | 5 | ||||
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 22 |
2 files changed, 22 insertions, 5 deletions
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h index eb634a627c..303d383469 100644 --- a/include/llvm/CodeGen/SelectionDAGNodes.h +++ b/include/llvm/CodeGen/SelectionDAGNodes.h @@ -25,7 +25,6 @@ #include "llvm/ADT/GraphTraits.h" #include "llvm/ADT/iterator" #include "llvm/Support/DataTypes.h" -#include "llvm/Support/MathExtras.h" #include <cassert> #include <vector> @@ -742,9 +741,7 @@ public: /// it returns true for things that are clearly not equal, like -0.0 and 0.0. /// As such, this method can be used to do an exact bit-for-bit comparison of /// two floating point values. - bool isExactlyValue(double V) const { - return DoubleToBits(V) == DoubleToBits(Value); - } + bool isExactlyValue(double V) const; static bool classof(const ConstantFPSDNode *) { return true; } static bool classof(const SDNode *N) { diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 81b08039a4..cb682c1465 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -57,6 +57,21 @@ static bool isInvertibleForFree(SDOperand N) { return false; } +//===----------------------------------------------------------------------===// +// ConstantFPSDNode Class +//===----------------------------------------------------------------------===// + +/// isExactlyValue - We don't rely on operator== working on double values, as +/// it returns true for things that are clearly not equal, like -0.0 and 0.0. +/// As such, this method can be used to do an exact bit-for-bit comparison of +/// two floating point values. +bool ConstantFPSDNode::isExactlyValue(double V) const { + return DoubleToBits(V) == DoubleToBits(Value); +} + +//===----------------------------------------------------------------------===// +// ISD Class +//===----------------------------------------------------------------------===// /// getSetCCSwappedOperands - Return the operation corresponding to (Y op X) /// when given the operation for (X op Y). @@ -140,6 +155,9 @@ const TargetMachine &SelectionDAG::getTarget() const { return TLI.getTargetMachine(); } +//===----------------------------------------------------------------------===// +// SelectionDAG Class +//===----------------------------------------------------------------------===// /// RemoveDeadNodes - This method deletes all unreachable nodes in the /// SelectionDAG, including nodes (like loads) that have uses of their token @@ -1822,7 +1840,9 @@ void SelectionDAG::ReplaceAllUsesWith(SDNode *From, SDNode *To) { } } - +//===----------------------------------------------------------------------===// +// SDNode Class +//===----------------------------------------------------------------------===// /// hasNUsesOfValue - Return true if there are exactly NUSES uses of the /// indicated value. This method ignores uses of other values defined by this |