[NFC] fix trivial typos in documents and comments

"is is" -> "is", "if if" -> "if", "or or" -> "or"

llvm-svn: 329878

4 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/LiveIntervals.cpp b/llvm/lib/CodeGen/LiveIntervals.cpp
index 13fe77e4866..c10881b5d19 100644
--- a/llvm/lib/CodeGen/LiveIntervals.cpp
+++ b/llvm/lib/CodeGen/LiveIntervals.cpp
@@ -785,7 +785,7 @@ MachineBasicBlock*
 LiveIntervals::intervalIsInOneMBB(const LiveInterval &LI) const {
   // A local live range must be fully contained inside the block, meaning it is
   // defined and killed at instructions, not at block boundaries. It is not
-  // live in or or out of any block.
+  // live in or out of any block.
   //
   // It is technically possible to have a PHI-defined live range identical to a
   // single block, but we are going to return false in that case.
diff --git a/llvm/lib/IR/ConstantFold.cpp b/llvm/lib/IR/ConstantFold.cpp
index 7ad2d46bfb6..3859dfbbd3f 100644
--- a/llvm/lib/IR/ConstantFold.cpp
+++ b/llvm/lib/IR/ConstantFold.cpp
@@ -321,7 +321,7 @@ static Constant *ExtractConstantBytes(Constant *C, unsigned ByteStart,
     if (ByteStart == 0 && ByteSize*8 == SrcBitSize)
       return CE->getOperand(0);
 
-    // If extracting something completely in the input, if if the input is a
+    // If extracting something completely in the input, if the input is a
     // multiple of 8 bits, recurse.
     if ((SrcBitSize&7) == 0 && (ByteStart+ByteSize)*8 <= SrcBitSize)
       return ExtractConstantBytes(CE->getOperand(0), ByteStart, ByteSize);
diff --git a/llvm/lib/Object/COFFObjectFile.cpp b/llvm/lib/Object/COFFObjectFile.cpp
index b544fa5c147..e45246b5776 100644
--- a/llvm/lib/Object/COFFObjectFile.cpp
+++ b/llvm/lib/Object/COFFObjectFile.cpp
@@ -944,7 +944,7 @@ COFFObjectFile::getPE32PlusHeader(const pe32plus_header *&Res) const {
 std::error_code
 COFFObjectFile::getDataDirectory(uint32_t Index,
                                  const data_directory *&Res) const {
-  // Error if if there's no data directory or the index is out of range.
+  // Error if there's no data directory or the index is out of range.
   if (!DataDirectory) {
     Res = nullptr;
     return object_error::parse_failed;
diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp
index ec1985c8292..892bc7ffcee 100644
--- a/llvm/lib/Transforms/Scalar/NewGVN.cpp
+++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp
@@ -1705,7 +1705,7 @@ bool NewGVN::isCycleFree(const Instruction *I) const {
   if (ICS == ICS_Unknown) {
     SCCFinder.Start(I);
     auto &SCC = SCCFinder.getComponentFor(I);
-    // It's cycle free if it's size 1 or or the SCC is *only* phi nodes.
+    // It's cycle free if it's size 1 or the SCC is *only* phi nodes.
     if (SCC.size() == 1)
       InstCycleState.insert({I, ICS_CycleFree});
     else {