fix trivial typos in comments; NFC

llvm-svn: 307004

lib/CodeGen/RegisterScavenging.cpp

@@ -626,7 +626,7 @@ static unsigned scavengeVReg(MachineRegisterInfo &MRI, RegScavenger &RS,
   assert(RealDef != nullptr && "Must have at least 1 Def");
 #endif
 
-  // We should only have one definition of the register. However to accomodate
+  // We should only have one definition of the register. However to accommodate
   // the requirements of two address code we also allow definitions in
   // subsequent instructions provided they also read the register. That way
   // we get a single contiguous lifetime.

lib/DebugInfo/DWARF/DWARFDie.cpp

@@ -395,7 +395,7 @@ DWARFDie::attribute_iterator::attribute_iterator(DWARFDie D, bool End) :
 void DWARFDie::attribute_iterator::updateForIndex(
     const DWARFAbbreviationDeclaration &AbbrDecl, uint32_t I) {
   Index = I;
-  // AbbrDecl must be valid befor calling this function.
+  // AbbrDecl must be valid before calling this function.
   auto NumAttrs = AbbrDecl.getNumAttributes();
   if (Index < NumAttrs) {
     AttrValue.Attr = AbbrDecl.getAttrByIndex(Index);

lib/Target/AArch64/AArch64CleanupLocalDynamicTLSPass.cpp

@@ -113,7 +113,7 @@ struct LDTLSCleanup : public MachineFunctionPass {
     return Copy;
   }
 
-  // Create a virtal register in *TLSBaseAddrReg, and populate it by
+  // Create a virtual register in *TLSBaseAddrReg, and populate it by
   // inserting a copy instruction after I. Returns the new instruction.
   MachineInstr *setRegister(MachineInstr &I, unsigned *TLSBaseAddrReg) {
     MachineFunction *MF = I.getParent()->getParent();

lib/Target/SystemZ/SystemZLDCleanup.cpp

@@ -127,7 +127,7 @@ MachineInstr *SystemZLDCleanup::ReplaceTLSCall(MachineInstr *I,
   return Copy;
 }
 
-// Create a virtal register in *TLSBaseAddrReg, and populate it by
+// Create a virtual register in *TLSBaseAddrReg, and populate it by
 // inserting a copy instruction after I. Returns the new instruction.
 MachineInstr *SystemZLDCleanup::SetRegister(MachineInstr *I,
                                             unsigned *TLSBaseAddrReg) {

lib/Target/X86/X86InstrInfo.cpp

@@ -10488,7 +10488,7 @@ namespace {
       return Copy;
     }
 
-    // Create a virtal register in *TLSBaseAddrReg, and populate it by
+    // Create a virtual register in *TLSBaseAddrReg, and populate it by
     // inserting a copy instruction after I. Returns the new instruction.
     MachineInstr *SetRegister(MachineInstr &I, unsigned *TLSBaseAddrReg) {
       MachineFunction *MF = I.getParent()->getParent();