diff --git a/llvm/include/llvm/CodeGen/PseudoSourceValue.h b/llvm/include/llvm/CodeGen/PseudoSourceValue.h
--- a/llvm/include/llvm/CodeGen/PseudoSourceValue.h
+++ b/llvm/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;
 
diff --git a/llvm/include/llvm/IR/CallSite.h b/llvm/include/llvm/IR/CallSite.h
--- a/llvm/include/llvm/IR/CallSite.h
+++ b/llvm/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;
diff --git a/llvm/include/llvm/Target/TargetSchedule.td b/llvm/include/llvm/Target/TargetSchedule.td
--- a/llvm/include/llvm/Target/TargetSchedule.td
+++ b/llvm/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