Fix a few typos

Signed-off-by: Keith W. Campbell <keithc@ca.ibm.com>

Author: keithc-ca

runtime/compiler/optimizer/TreeLowering.cpp

@@ -155,7 +155,7 @@ TR::TreeLowering::Transformer::splitForFastpath(TR::Block* const block, TR::Tree
  * (substituted). That is, if a register dependency is found under `sourceNode`
  * for the same register that is set on `substituteNode`, then `substituteNode`
  * will be used instead of the dependency from `sourceNode`. Note that the
- * reference of of `substituteNode` is incremented if/when it gets added. If
+ * reference of `substituteNode` is incremented if/when it gets added. If
  * `substituteNode` is NULL the no substitution will be attempted.
  *
  * @param targetNode is the GlRegDeps node that reg deps are copied to

runtime/compiler/x/codegen/J9TreeEvaluator.cpp

@@ -7479,7 +7479,7 @@ static void handleOffHeapDataForArrays(
 
       TR::Register *discontiguousDataAddrOffsetReg = srm->findOrCreateScratchRegister();
       generateRegRegInstruction(TR::InstOpCode::XOR4RegReg, node, discontiguousDataAddrOffsetReg, discontiguousDataAddrOffsetReg, cg);
-      // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of of sizeReg.
+      // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of sizeReg.
       generateRegImmInstruction(TR::InstOpCode::CMP4RegImm4, node, sizeReg, 1, cg);
       generateRegImmInstruction(TR::InstOpCode::ADCRegImm4(), node, discontiguousDataAddrOffsetReg, 0, cg);
 
@@ -7491,7 +7491,7 @@ static void handleOffHeapDataForArrays(
       // Clear out tempReg if dealing with 0 length array
       zeroReg = srm->findOrCreateScratchRegister();
       generateRegRegInstruction(TR::InstOpCode::XOR4RegReg, node, zeroReg, zeroReg, cg);
-      // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of of sizeReg.
+      // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of sizeReg.
       generateRegRegInstruction(TR::InstOpCode::TEST4RegReg, node, sizeReg, sizeReg, cg);
       generateRegRegInstruction(TR::InstOpCode::CMOVERegReg(), node, tempReg, zeroReg, cg);
       srm->reclaimScratchRegister(zeroReg);
@@ -7536,7 +7536,7 @@ static void handleOffHeapDataForArrays(
          // Clear out tempReg if dealing with 0 length array
          zeroReg = srm->findOrCreateScratchRegister();
          generateRegRegInstruction(TR::InstOpCode::XORRegReg(), node, zeroReg, zeroReg, cg);
-         // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of of sizeReg.
+         // Since array size is capped at 32 bits, we only need to check lower half (0-31 bits) of sizeReg.
          generateRegRegInstruction(TR::InstOpCode::TEST4RegReg, node, sizeReg, sizeReg, cg);
          generateRegRegInstruction(TR::InstOpCode::CMOVERegReg(), node, tempReg, zeroReg, cg);
          srm->reclaimScratchRegister(zeroReg);

runtime/libffi/arm/gentramp.sh

@@ -2,7 +2,7 @@
 
 # -----------------------------------------------------------------------
 #  gentramp.sh - Copyright (c) 2010, Plausible Labs Cooperative, Inc.
-#  
+#
 #  ARM Trampoline Page Generator
 #
 #  Permission is hereby granted, free of charge, to any person obtaining
@@ -41,7 +41,7 @@ PAGE_SIZE=4096
 # are unreachable due to our maximum pc-relative ldr offset.
 PAGE_AVAIL=`expr $PAGE_SIZE - 16`
 
-# Compute the number of of available trampolines. 
+# Compute the number of available trampolines.
 TRAMPOLINE_COUNT=`expr $PAGE_AVAIL / $TRAMPOLINE_SIZE`
 
 header () {
@@ -52,7 +52,7 @@ header () {
     # Write out the license header
 cat << EOF
 #  Copyright (c) 2010, Plausible Labs Cooperative, Inc.
-#  
+#
 #  Permission is hereby granted, free of charge, to any person obtaining
 #  a copy of this software and associated documentation files (the
 #  ``Software''), to deal in the Software without restriction, including