diff --git a/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp b/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
--- a/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
+++ b/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
@@ -38,7 +38,7 @@
 namespace {
 
 /// WebAssemblyOperand - Instances of this class represent the operands in a
-/// parsed WASM machine instruction.
+/// parsed Wasm machine instruction.
 struct WebAssemblyOperand : public MCParsedAsmOperand {
   enum KindTy { Token, Integer, Float, Symbol, BrList } Kind;
 
@@ -868,7 +868,7 @@
     }
     case Match_MissingFeature:
       return Parser.Error(
-          IDLoc, "instruction requires a WASM feature not currently enabled");
+          IDLoc, "instruction requires a Wasm feature not currently enabled");
     case Match_MnemonicFail:
       return Parser.Error(IDLoc, "invalid instruction");
     case Match_NearMisses:
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -274,7 +274,7 @@
   setLibcallName(RTLIB::FPROUND_F32_F16, "__truncsfhf2");
 
   // Define the emscripten name for return address helper.
-  // TODO: when implementing other WASM backends, make this generic or only do
+  // TODO: when implementing other Wasm backends, make this generic or only do
   // this on emscripten depending on what they end up doing.
   setLibcallName(RTLIB::RETURN_ADDRESS, "emscripten_return_address");