Index: llvm/trunk/include/llvm/CodeGen/PseudoSourceValue.h
===================================================================
--- llvm/trunk/include/llvm/CodeGen/PseudoSourceValue.h
+++ llvm/trunk/include/llvm/CodeGen/PseudoSourceValue.h
@@ -122,7 +122,7 @@
   bool mayAlias(const MachineFrameInfo *) const override;
 };
 
-/// A specialized pseudo soruce value for holding GlobalValue values.
+/// A specialized pseudo source value for holding GlobalValue values.
 class GlobalValuePseudoSourceValue : public CallEntryPseudoSourceValue {
   const GlobalValue *GV;
 
Index: llvm/trunk/include/llvm/IR/CallSite.h
===================================================================
--- llvm/trunk/include/llvm/IR/CallSite.h
+++ llvm/trunk/include/llvm/IR/CallSite.h
@@ -724,7 +724,7 @@
     /// through (also identified by position but in the call site instruction).
     ///
     /// NOTE that we use LLVM argument numbers (starting at 0) and not
-    /// clang/soruce argument numbers (starting at 1). The -1 entries represent
+    /// clang/source argument numbers (starting at 1). The -1 entries represent
     /// unknown values that are passed to the callee.
     using ParameterEncodingTy = SmallVector<int, 0>;
     ParameterEncodingTy ParameterEncoding;
Index: llvm/trunk/include/llvm/Target/TargetSchedule.td
===================================================================
--- llvm/trunk/include/llvm/Target/TargetSchedule.td
+++ llvm/trunk/include/llvm/Target/TargetSchedule.td
@@ -135,7 +135,7 @@
 //
 // An optional Super resource may be given to model these resources as
 // a subset of the more general super resources. Using one of these
-// resources implies using one of the super resoruces.
+// resources implies using one of the super resources.
 //
 // ProcResourceUnits normally model a few buffered resources within an
 // out-of-order engine. Buffered resources may be held for multiple
Index: llvm/trunk/tools/llvm-rc/ResourceFileWriter.cpp
===================================================================
--- llvm/trunk/tools/llvm-rc/ResourceFileWriter.cpp
+++ llvm/trunk/tools/llvm-rc/ResourceFileWriter.cpp
@@ -722,7 +722,7 @@
 
 // --- CursorResource and IconResource helpers. --- //
 
-// ICONRESDIR structure. Describes a single icon in resouce group.
+// ICONRESDIR structure. Describes a single icon in resource group.
 //
 // Ref: msdn.microsoft.com/en-us/library/windows/desktop/ms648016.aspx
 struct IconResDir {