Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 5 insertions, 5 deletions

diff --git a/include/llvm/CodeGen/FunctionLoweringInfo.h b/include/llvm/CodeGen/FunctionLoweringInfo.h
index 794a95a03b..8cf22eca4f 100644
--- a/include/llvm/CodeGen/FunctionLoweringInfo.h
+++ b/include/llvm/CodeGen/FunctionLoweringInfo.h
@@ -58,7 +58,7 @@ public:
   MachineFunction *MF;
   MachineRegisterInfo *RegInfo;
   BranchProbabilityInfo *BPI;
-  /// CanLowerReturn - true if the function's return value can be lowered to
+  /// CanLowerReturn - true iff the function's return value can be lowered to
   /// registers.
   bool CanLowerReturn;
 
diff --git a/include/llvm/CodeGen/ISDOpcodes.h b/include/llvm/CodeGen/ISDOpcodes.h
index ddf1b7d17d..5d0a3b4c70 100644
--- a/include/llvm/CodeGen/ISDOpcodes.h
+++ b/include/llvm/CodeGen/ISDOpcodes.h
@@ -340,7 +340,7 @@ namespace ISD {
     /// condition code in op #4, a CondCodeSDNode.
     SELECT_CC,
 
-    /// SetCC operator - This evaluates to a true value if the condition is
+    /// SetCC operator - This evaluates to a true value iff the condition is
     /// true.  If the result value type is not i1 then the high bits conform
     /// to getBooleanContents.  The operands to this are the left and right
     /// operands to compare (ops #0, and #1) and the condition code to compare
diff --git a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
index 87f595adfa..12189ceb7f 100644
--- a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
+++ b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
@@ -69,7 +69,7 @@ public:
 
   // Return a probability as a fraction between 0 (0% probability) and
   // 1 (100% probability), however the value is never equal to 0, and can be 1
-  // only if SRC block has only one successor.
+  // only iff SRC block has only one successor.
   // NB: This routine's complexity is linear on the number of successors of
   // Src. Querying sequentially for each successor's probability is a quadratic
   // query pattern.
@@ -77,7 +77,7 @@ public:
                                        MachineBasicBlock *Dst) const;
 
   // Print value between 0 (0% probability) and 1 (100% probability),
-  // however the value is never equal to 0, and can be 1 only if SRC block
+  // however the value is never equal to 0, and can be 1 only iff SRC block
   // has only one successor.
   raw_ostream &printEdgeProbability(raw_ostream &OS, MachineBasicBlock *Src,
                                     MachineBasicBlock *Dst) const;
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index a8f5f5fa09..619ee69943 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -1021,7 +1021,7 @@ public:
   /// ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an
   /// ISD::OR with a ConstantSDNode that is guaranteed to have the same
   /// semantics as an ADD.  This handles the equivalence:
-  ///     X|Cst == X+Cst if X&Cst = 0.
+  ///     X|Cst == X+Cst iff X&Cst = 0.
   bool isBaseWithConstantOffset(SDValue Op) const;
 
   /// isKnownNeverNan - Test whether the given SDValue is known to never be NaN.