Fix MSVC "not all control paths return a value" warnings. NFCI.

RKSimon · RKSimon · commit 126a72fcbf7e · 2019-10-24T13:40:13.000-07:00
diff --git a/clang/utils/TableGen/MveEmitter.cpp b/clang/utils/TableGen/MveEmitter.cpp
@@ -158,6 +158,7 @@ inline std::string toLetter(ScalarTypeKind kind) {
   case ScalarTypeKind::Float:
     return "f";
   }
+  llvm_unreachable("Unhandled ScalarTypeKind enum");
 }
 inline std::string toCPrefix(ScalarTypeKind kind) {
   switch (kind) {
@@ -168,6 +169,7 @@ inline std::string toCPrefix(ScalarTypeKind kind) {
   case ScalarTypeKind::Float:
     return "float";
   }
+  llvm_unreachable("Unhandled ScalarTypeKind enum");
 }
 
 class VoidType : public Type {

Original file line number	Diff line number	Diff line change
`@@ -158,6 +158,7 @@ inline std::string toLetter(ScalarTypeKind kind) {`
`158`	`158`	`case ScalarTypeKind::Float:`
`159`	`159`	`return "f";`
`160`	`160`	`}`
	`161`	`+ llvm_unreachable("Unhandled ScalarTypeKind enum");`
`161`	`162`	`}`
`162`	`163`	`inline std::string toCPrefix(ScalarTypeKind kind) {`
`163`	`164`	`switch (kind) {`
`@@ -168,6 +169,7 @@ inline std::string toCPrefix(ScalarTypeKind kind) {`
`168`	`169`	`case ScalarTypeKind::Float:`
`169`	`170`	`return "float";`
`170`	`171`	`}`
	`172`	`+ llvm_unreachable("Unhandled ScalarTypeKind enum");`
`171`	`173`	`}`
`172`	`174`
`173`	`175`	`class VoidType : public Type {`